WO2014057230A1 - Saturator for injecting a gas into a liquid - Google Patents

Saturator for injecting a gas into a liquid Download PDF

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Publication number
WO2014057230A1
WO2014057230A1 PCT/FR2013/052437 FR2013052437W WO2014057230A1 WO 2014057230 A1 WO2014057230 A1 WO 2014057230A1 FR 2013052437 W FR2013052437 W FR 2013052437W WO 2014057230 A1 WO2014057230 A1 WO 2014057230A1
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WO
WIPO (PCT)
Prior art keywords
saturator
gas
liquid
central core
injection device
Prior art date
Application number
PCT/FR2013/052437
Other languages
French (fr)
Inventor
Vincent Jung
Jordan MANGENOT
Guillaume WURGER
Delphine Chmura
Original Assignee
Sdel Alsace
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sdel Alsace filed Critical Sdel Alsace
Priority to EP13789850.8A priority Critical patent/EP2906332A1/en
Publication of WO2014057230A1 publication Critical patent/WO2014057230A1/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20Mixing gases with liquids
    • B01F23/23Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/236Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids specially adapted for aerating or carbonating beverages
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30Injector mixers
    • B01F25/31Injector mixers in conduits or tubes through which the main component flows
    • B01F25/313Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit
    • B01F25/3131Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit with additional mixing means other than injector mixers, e.g. screens, baffles or rotating elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30Injector mixers
    • B01F25/31Injector mixers in conduits or tubes through which the main component flows
    • B01F25/313Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit
    • B01F25/3133Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit characterised by the specific design of the injector
    • B01F25/31331Perforated, multi-opening, with a plurality of holes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40Static mixers
    • B01F25/44Mixers in which the components are pressed through slits
    • B01F25/441Mixers in which the components are pressed through slits characterised by the configuration of the surfaces forming the slits
    • B01F25/4413Mixers in which the components are pressed through slits characterised by the configuration of the surfaces forming the slits the slits being formed between opposed conical or cylindrical surfaces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40Static mixers
    • B01F25/44Mixers in which the components are pressed through slits
    • B01F25/441Mixers in which the components are pressed through slits characterised by the configuration of the surfaces forming the slits
    • B01F25/4416Mixers in which the components are pressed through slits characterised by the configuration of the surfaces forming the slits the opposed surfaces being provided with grooves
    • B01F25/44162Circumferential grooves formed on opposed surfaces, e.g. on planar surfaces or on cylinders or cones
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40Static mixers
    • B01F25/44Mixers in which the components are pressed through slits
    • B01F25/442Mixers in which the components are pressed through slits characterised by the relative position of the surfaces during operation
    • B01F25/4422Mixers in which the components are pressed through slits characterised by the relative position of the surfaces during operation the surfaces being maintained in a fixed but adjustable position, spaced from each other, therefore allowing the slit spacing to be varied

Definitions

  • the present invention relates to the field of devices for injecting and dispersing gas in any liquid, these devices being in particular designated by the term "saturator" because they allow saturation of a liquid by a gas.
  • the present invention will find its application mainly in the field of facilities intended in particular to allow the injection of gas into a liquid, for example, but not limited to, an injection of carbon dioxide C0 2 for the carbonation of said liquid.
  • the saturators known in the state of the art consist of a body with an inlet and an outlet and inside which circulates a flow of liquid. They also include a device for injecting a gas into the liquid.
  • various means are implemented downstream of the injection device, in particular means increasing the turbulence and therefore the contact between the gas bubbles with the liquid.
  • patent document EP 2,060,3108 describes a saturator comprising a gas diffuser located upstream of a turbulence chamber.
  • the gas injection device comprises a membrane anti-return device having a tubular shape and surrounding orifices distributed in a ring on a hollow diffuser, substantially cylindrical and closed at its lower end.
  • This injection device is placed at a certain distance upstream of the axially adjustable central core, in particular by means of a threaded stud adjustment device.
  • this core with the annular projections, acts as a valve and, depending on its axial positioning, it decreases or increases the annular passage section of the liquid. As a result, there is an increase or decrease in the pressure drop across the saturator, making it possible to optimize the dissolution of the gas within the liquid.
  • the gas injected into the liquid consists of C0 2
  • insufficient stability of the gas causes a strong disgorging or overactivity, the opening of the bottle containing the liquid.
  • the liquid is not consumed quickly after opening, the amount of gas contained in said liquid decreases rapidly to be almost zero, which is unpleasant for the consumer.
  • devices for mixing two liquids are known, in particular in the patent document WO 2006/060282. More particularly, the device described in the latter is intended to allow the mixing and lysis of cells in order to promote a release of biological compounds of interest.
  • a cell suspension is fed, via an inlet pipe, to a conduit in which a lysis solution circulates.
  • the device described in this document may optionally include an impact target whose objective is to destroy the cell aggregates present in the suspension.
  • such a device is in no way adapted to the injection of a gas into a liquid, nor, a fortiori, to a saturation of said liquid by such a gas.
  • the device object of the aforementioned document does not evoke in any case, nor solves, the problems related to preferential paths that can take a gas in a liquid.
  • the mixer comprises a mixing duct, in which flows the polymer stream, and a conduit for supplying a liquid additive.
  • a mixing chamber is provided, the latter having a rotatable rotor hub so as to create a shear flow in order to facilitate mixing between the solution incorporating the liquid additive and the polymer.
  • the invention thus offers the possibility of overcoming the various disadvantages of the state of the art by proposing a saturator in which the distance between the gas injection device and the central core is reduced compared to the distance that traditionally exists between these two elements of a saturator.
  • the present invention relates to a saturator for injecting a gas into a liquid, comprising a body in which a flow of liquid flows from, upstream, at least one inlet orifice to at least one orifice of outlet located downstream, said body comprising at least one gas injection device upstream and in the axis of a central dispersion core of said gas within said liquid.
  • the saturator according to the invention is characterized in that the gas injection device is located at a distance from the central core of between 2 and 20 mm, to prevent said gas from passing preferentially between the injection device of the gas injection device. gas and the central core.
  • this distance between the gas injection device and the central core may be between 5 and 10 mm.
  • this distance is between 6 and 8 mm.
  • the gas injection device constitutes fastening means and maintaining the central core in axial position in the body of said saturator.
  • the gas injection device constitutes a means for adjusting the axial positioning of the central core in the body of said saturator.
  • the central core defined, with the inner wall of the saturator body, at least one turbulence ring.
  • a turbulence ring is defined on the one hand by two successive circular protrusions offset axially along the inner wall of the body of the saturator and on the other hand by two peripheral edges of the central core each acting with a circular projection so forming a valve and a valve seat.
  • the body of said saturator may be composed of one or more modules, each module comprising a tubular body and a central core provided with at least one end of connection means to another module and / or an injection module and / or an output module and / or an input sleeve and / or an output sleeve.
  • the present invention has many advantages.
  • the device according to the invention makes it possible to substantially counteract the creation of preferential paths taken by the gas through the saturator.
  • the present device allows optimum distribution and dissolution of said gas in the liquid.
  • the saturator according to the invention also makes it possible to prevent the formation of a diphasic mixture between the gas and the liquid upstream of the turbulence means, such a formation also disadvantages a satisfactory dissolution of the gas within the liquid. .
  • the present invention relates to a saturator 1 for allowing the injection of a gas into a liquid.
  • the present saturator 1 is intended more particularly to be integrated into an installation allowing in particular the carbonation of a liquid and / or the extraction of a gas contained in a liquid.
  • carbonation is understood to mean dissolving carbon dioxide C0 2 in a liquid.
  • entrainment gas a second gas, called entrainment gas, in this liquid.
  • the dissolved gas to be extracted may in particular consist of O 2 dioxygen; in this case, the removal of this dissolved gas is called “deaeration”, or “deoxygenation”.
  • the gas which is injected into the liquid, via the saturator 1 according to the invention can be arbitrary. It may especially consist of carbon dioxide C0 2 , dinitrogen N 2 , or even oxygen 0 2 . It is also possible to inject into a liquid a mixture composed of several of these gases.
  • the liquid into which the gas is injected can also be of any type; for example, said liquid may consist of any beverage, with or without pulp, carbonated or not, such as in particular fruit juice, wine, cider, milk, beer, syrup, water, or alternatively a mixture incorporating several of these liquids, such as for example a mixture consisting of water and a syrup.
  • This liquid may also consist, for example, of soup, sauce, soda or lemonade.
  • the gas injected into the liquid via the present saturator 1 consists of carbon dioxide C0 2
  • said saturator 1 makes it possible to carbonate said liquid by dissolving the C0 2 therein; a gaseous drink is thus obtained, for example gaseous water in the case where the liquid consists of water.
  • the gas injected into the liquid may consist of dinitrogen N 2 .
  • said liquid may then be conveyed to a device for enabling a drive, for example, oxygen 0 2, naturally present and dissolved in the liquid.
  • the entrainment of the oxygen is thus facilitated by the nitrogen N 2 dissolved via the saturator 1.
  • This advantageously makes it possible to considerably reduce the concentration of O 2 O 2 present initially in the liquid, and thus to avoid the phenomena of oxidation that may result from the presence of this gas in the liquid.
  • the saturator 1 in itself, it comprises a body 2, preferably substantially tubular, through which flows any liquid flow.
  • Said flow of liquid passes through the body 2 of the saturator 1 from at least one upstream inlet opening 3 to at least one outlet orifice 4 situated downstream with respect to said inlet orifice 3.
  • the body 2 of the saturator 1 according to the present invention also comprises at least one gas injection device 5 located upstream of the dissolution means.
  • a gas injection device 5 is preferred to a Venturi suction device, which could also allow dissolution of the gas in a liquid, but with which this dissolution would be less effective.
  • a central core 6 downstream of this injection device 5 may be placed a central core 6, the latter being more particularly intended to promote diffusion of the gas injected into said liquid.
  • the body 2 of the saturator 1, of tubular section extends symmetrically about an axis 7 between its inlet 3 and its outlet 4, said injection device 5 and the central core 6 being themselves axially arranged in this body 2 of said saturator 1.
  • the gas injection device 5 in other words the point where the gas comes into contact with the liquid, is situated, upstream of the central core 6, at a sufficiently small distance for the gas injected a part does not take preferential paths in the liquid between the injection device 5 and said core 6 and secondly diffuses substantially uniformly and homogeneously in the annular space around the latter.
  • this distance between the injection device 5 and said central core 6 is between 2 and 20 mm.
  • this distance is between 5 and 10 mm.
  • this distance between 6 and 8 mm.
  • the gas injection device 5 comprises a cylindrical injection nozzle 8 whose axis coincides with the axis 7 of the body 2 of the saturator 1, said injection nozzle 8 comprising at least, at its end, a gas injection orifice in the axis 7 of the body 2 of said saturator 1, said injection orifice being situated at the aforementioned distance from the central core 6.
  • the injection nozzle 8 comprises, at its periphery and at the distance mentioned above with respect to the central core 6, injection orifices 9 of FIG. gas advantageously distributed regularly around said nozzle 8.
  • said injection nozzle 8 comprises means for connection to an external gas supply.
  • these connecting means are defined by a connection duct 10 passing through the wall of the body 2 of the saturator 1.
  • connection means constitute means for holding and axial positioning of the injection nozzle 8 in the body 2 of the saturator 1.
  • the injection device 5 constitutes substantially means for fixing and holding the central core 6 in axial position in the body 2 of the saturator 1.
  • the central core 6 is fixed on the downstream end of the injection nozzle 8.
  • said injection nozzle 8 is extended, beyond the injection orifice (s) 9, by a tip 11 for fixing the central core 6.
  • the saturator 1 comprises means for adjusting the axial positioning of the central core 6 inside the body 2 of said saturator 1.
  • these adjustment means are constituted by the attachment tip 11 associated with the injection nozzle 8.
  • this fastener 11 is defined in the form of a threaded rod on which is screwed the central core 6 through a threaded hole of adapted section, the latter being provided axially at the upstream end. of the central nucleus 6.
  • Such a turbulence ring 13 is more precisely defined on the one hand at the inner wall 12 of the body 2 of the saturator 1 by two projections 14, 141 successive circular and offset axially along this inner wall 12 and, secondly, at the central core 6 by two flanges 15, 151 each acting respectively with a circular projection 14, 141, in the manner of a valve and a valve seat.
  • the central core 6 can then act from bottom to top or from top to bottom, a flange 15, 151 and a circular projection 14, 141 can then cooperate jointly, one being arranged above the other as it appears on the attached figure.
  • the inner wall 12 of the body 2 of the saturator 1 can be configured in the form of one or more cavities, the latter again contributing to increase the desired turbulence effect for a good dissolution of the gas within the liquid.
  • the saturator 1 according to the invention may also comprise at least one means for injecting a complementary component into the liquid circulating in said saturator, this component possibly being a flocculant or a coagulant.
  • the present invention also relates to a saturator 1 whose body is composed of several adjacent modules, each of these modules comprising at least, on the one hand, a tubular body 2 and, on the other hand, a central core 6.
  • connection means for connecting a module to a previous module and / or a next module.
  • connection means may take the form of connection flanges well known to those skilled in the art.
  • the first module located upstream of the following module or modules, forms an injection module with the orifice upstream inlet 3 and comprises at least one gas injection device 5.
  • the last module located downstream of the other modules, constitutes an output module with a downstream outlet orifice 4.
  • the saturator 1 comprises three adjacent modules, that is to say an injection module, an intermediate module and an output module
  • said intermediate module comprises, on the one hand, at its upstream end, connecting means to the injection module and, at its downstream end, connecting means to the output module.
  • the saturator 1 further comprising an inlet sleeve with an upstream inlet port 3 and equipped with an injection device 5, as well as an outlet sleeve provided with a downstream outlet port 4.
  • FIG. 1 further illustrates a combination of these two solutions, the saturator 1 consisting of an inlet sleeve with an inlet orifice 3 and an injection device 5 and an exit module, comprising, itself, a tubular body 2 with central core 6 and an outlet port 4. Between this inlet sleeve and the output module are interchangeable one or more intermediate modules.
  • This solution has the advantage of facilitating assembly; in fact, on the inlet sleeve can be fixed the central cores 6, themselves connectable to each other, thanks to suitable connection means, in particular screw-type or similar.
  • each module can form a dissolution stage, the saturator 1 having as many stages as desired.
  • each floor itself may include one or more rings of turbulence 13.
  • the saturator 1 As regards the various applications of the saturator 1 according to the present invention, it can in particular be integrated into a more complex installation intended to allow the carbonation of liquids from liquid and gaseous constituents.
  • the present saturator 1 can also be inserted into an installation intended to allow the elimination of a gas dissolved naturally in a liquid, said gas being able in particular to consist of dioxygen.
  • the gas injected via said saturator 1 serves as a gas for driving the second gas present in the liquid.
  • liquid in question consists for example of wine and it is desired to deoxygenate the latter; then, in the wine, dinitrogen N 2 is injected, via the saturator 1 according to the invention, so as to facilitate the entrainment of oxygen O 2 by N 2 .
  • the liquid to be deoxygenated may also consist of any type of liquid.
  • the deoxygenation efficiency was improved by about 30% compared to a deoxygenation of a liquid when the gas
  • the N 2 drive is injected via a conventional saturator of the state of the art.
  • the amount of dissolved oxygen is about 30% less with the present saturator 1, which is made possible by the excellent dissolution of N 2 in the liquid.
  • the oxidation phenomena in the liquid in question are substantially reduced.
  • the gas injected via the saturator 1 according to the invention may consist in particular of nitrogen N 2 and / or oxygen 0 2 and / or any other gas and / or gas mixture.
  • the entrainment of the dissolved gas can be obtained by any means known to those skilled in the art.
  • the liquid to be deoxygenated is placed in a tank, which can optionally be placed and kept under vacuum by the action of a vacuum pump.
  • an installation may comprise on the one hand a first saturator 1 intended to allow a dissolution of a entrainment gas favoring the elimination of a gas naturally present in a liquid and, on the other hand, downstream thereof.
  • first saturator 1 a second saturator 1 for the carbonation of this same liquid by dissolving CO 2 in the latter.
  • the saturator 1 according to the invention allows a better dispersion performance of the gas in the liquid in which it is injected, compared to the saturators conventionally used in the state of the art.
  • An improvement in this efficiency is due in particular to the fact that the present saturator 1 makes it possible to prevent the gas from taking preferential paths before reaching the central core 6 of said saturator 1.

Abstract

The present invention concerns a saturator (1) for injecting a gas into a liquid, comprising a body (2) in which a flow of liquid circulates from, upstream, at least one inlet opening (3) to at least one outlet opening (4) located downstream, said body (2) comprising at least one gas injection device (5) upstream and in the axis (7) of a central core (6) for dispersing said gas into said liquid. Said saturator (1) is characterised in that the gas injection device (5) is located at a distance from the central core (6) of between 2 and 20 mm, in order to prevent the gas from taking preferential paths between the gas injection device (5) and the central core (6).

Description

Saturateur permettant l'injection d'un gaz dans un liquide Saturator for injecting a gas into a liquid
La présente invention concerne le domaine des dispositifs permettant une injection et une dispersion de gaz dans un liquide quelconque, ces dispositifs étant notamment désignés sous le terme de « saturateur » car ils permettent une saturation d'un liquide par un gaz. The present invention relates to the field of devices for injecting and dispersing gas in any liquid, these devices being in particular designated by the term "saturator" because they allow saturation of a liquid by a gas.
La présente invention trouvera son application principalement dans le domaine des installations destinées notamment à permettre l'injection de gaz dans un liquide, par exemple, mais non limitativement , une injection de dioxyde de carbone C02 pour la carbonatation dudit liquide . The present invention will find its application mainly in the field of facilities intended in particular to allow the injection of gas into a liquid, for example, but not limited to, an injection of carbon dioxide C0 2 for the carbonation of said liquid.
Traditionnellement, les saturateurs connus dans l'état de la technique sont constitués d'un corps avec une entrée et une sortie et à l'intérieur duquel circule un flux de liquide. Ils comportent également un dispositif permettant l'injection d'un gaz dans ce liquide .  Traditionally, the saturators known in the state of the art consist of a body with an inlet and an outlet and inside which circulates a flow of liquid. They also include a device for injecting a gas into the liquid.
De manière à favoriser la dissolution du gaz, différents moyens sont mis en œuvre en aval du dispositif d'injection, en particulier des moyens augmentant la turbulence et donc le contact entre les bulles de gaz avec le liquide .  In order to promote the dissolution of the gas, various means are implemented downstream of the injection device, in particular means increasing the turbulence and therefore the contact between the gas bubbles with the liquid.
Ainsi, on connaît par exemple le document de brevet EP 2 060 318, dans lequel il est décrit un saturateur comprenant un diffuseur de gaz situé en amont d'une chambre de turbulences.  Thus, patent document EP 2,060,318, for example, describes a saturator comprising a gas diffuser located upstream of a turbulence chamber.
De manière différente, dans le document de brevet US In a different way, in the US patent document
4 173 178, il est proposé d'introduire du dioxyde de carbone dans une portion du liquide qui a été préalablement prélevée depuis une ligne principale pour être mise en circulation dans une ligne secondaire, ou ligne « by-pass ». C'est ainsi au niveau de cette dernière qu'est effectuée l'injection de dioxyde de carbone dans le liquide. 4 173 178, it is proposed to introduce carbon dioxide into a portion of the liquid that has been previously taken from a main line to be circulated in a secondary line, or "bypass" line. It is thus at the level of the latter that is performed the injection of carbon dioxide into the liquid.
Selon encore un autre état de la technique, correspondant au document de brevet F 2 949 355, il est connu de ménager sur les parois internes du corps du saturateur des saillies annulaires de turbulence, et d'implanter axialement dans ce saturateur un noyau central de dispersion, les deux définissant des anneaux de turbulence . According to another state of the art, corresponding to the patent document F 2 949 355, it is known to provide on the internal walls of the body of the saturator annular turbulence projections, and to implant axially in this case. saturator a central dispersion core, both defining rings of turbulence.
Dans ce document F 2 949 355, le dispositif d'injection de gaz comporte un dispositif anti-retour à membrane présentant une forme tubulaire et entourant des orifices répartis en couronne sur un diffuseur creux, sensiblement cylindrique et fermé à son extrémité inférieure. Ce dispositif d'injection est placé à une certaine distance en amont du noyau central prévu réglable axialement, notamment par l'intermédiaire d'un dispositif de réglage par téton fileté. En somme ce noyau, avec les saillies annulaires, agit tel un clapet et, selon son positionnement axial, il vient diminuer ou augmenter la section de passage annulaire du liquide. Il en résulte, par conséquent, une augmentation ou une diminution de la perte de charge au travers du saturateur, permettant d'optimiser la dissolution du gaz au sein du liquide .  In this document F 2 949 355, the gas injection device comprises a membrane anti-return device having a tubular shape and surrounding orifices distributed in a ring on a hollow diffuser, substantially cylindrical and closed at its lower end. This injection device is placed at a certain distance upstream of the axially adjustable central core, in particular by means of a threaded stud adjustment device. In short, this core, with the annular projections, acts as a valve and, depending on its axial positioning, it decreases or increases the annular passage section of the liquid. As a result, there is an increase or decrease in the pressure drop across the saturator, making it possible to optimize the dissolution of the gas within the liquid.
On s'est aperçu qu'un tel saturateur, très performant en soi, pouvait encore être amélioré dans ses performances tout en étant simplifié dans sa conception, en somme que ce saturateur était susceptible d'être encore amélioré.  It was found that such a saturator, very powerful in itself, could still be improved in its performance while being simplified in its design, in sum that this saturator was likely to be further improved.
C'est dans le cadre d'une démarche inventive que l'on a pu constater que l'inconvénient principal des saturateurs existants résulte de chemins préférentiels, empruntés au travers du saturateur par le gaz injecté au sein du liquide. La conséquence de la présence de ces chemins préférentiels est une répartition et une stabilité non satisfaisante du gaz dans le liquide .  It is within the framework of an inventive step that it has been found that the main disadvantage of existing saturators results from preferential paths, borrowed through the saturator by the gas injected into the liquid. The consequence of the presence of these preferential paths is a distribution and unsatisfactory stability of the gas in the liquid.
Dans le cas particulier où le gaz injecté dans le liquide consiste en du C02, une stabilité insuffisante du gaz entraine un fort dégorgement, ou une suractivité, à l'ouverture de la bouteille renfermant le liquide. De plus, si le liquide n'est pas consommé rapidement après ouverture, la quantité de gaz contenue dans ledit liquide diminue rapidement jusqu'à être quasiment nulle, ce qui est peu agréable pour le consommateur. In the particular case where the gas injected into the liquid consists of C0 2 , insufficient stability of the gas causes a strong disgorging or overactivity, the opening of the bottle containing the liquid. In addition, if the liquid is not consumed quickly after opening, the amount of gas contained in said liquid decreases rapidly to be almost zero, which is unpleasant for the consumer.
Un autre inconvénient réside dans le fait que, lorsque le débit de liquide au sein du saturateur est faible, le gaz et le liquide, en raison de leur différence de densité et de vitesse, ont tendance à former un mélange diphasique en amont des moyens de turbulence. En conséquence, le gaz aura tendance à se diriger, puis à s'accumuler, en partie supérieure du saturateur, ce qui entraine une répartition non homogène dudit gaz au sein du liquide, et donc un rendement de dissolution faible. Another disadvantage lies in the fact that, when the flow of liquid in the saturator is low, the gas and the liquid, because of their difference in density and speed, tend to form a two-phase mixture upstream of the turbulence means. As a result, the gas will tend to flow, then to accumulate, in the upper part of the saturator, which causes a non-homogeneous distribution of said gas within the liquid, and therefore a low dissolution efficiency.
Dans une seconde démarche inventive, il a été mis en évidence l'importance de la distance séparant le dispositif d' injection des moyens de dissolution et en particulier du noyau central de dispersion, pour remédier à ces problèmes résultants de chemins préférentiels du gaz dans le saturateur.  In a second inventive step, it was highlighted the importance of the distance separating the injection device from the dissolution means and in particular from the central dispersion core, to remedy these problems resulting from preferential paths of the gas in the saturator.
En effet, aucun document de l'état de la technique ne fait état de cette problématique, et, en conséquence, ne donne une solution permettant de la résoudre et de répondre aux attentes des professionnels du secteur.  Indeed, no document of the state of the art makes mention of this problematic, and, consequently, does not give a solution making it possible to solve it and to answer the expectations of the professionals of the sector.
II est notamment connu des dispositifs de mélange de deux liquides, notamment dans le document de brevet WO 2006/060282. Plus particulièrement, le dispositif décrit dans ce dernier est destiné à permettre le mélange et la lyse de cellules en vue de favoriser un relarguage de composés biologiques d' intérêt . Une suspension cellulaire est amenée, par l'intermédiaire d'un tuyau d'arrivée, au niveau d'un conduit dans lequel circule une solution de lyse. Dans l'optique de faciliter encore la lyse des cellules, le dispositif décrit dans ce document peut optionnellement comporter une cible d'impact dont l'objectif est de détruire les agrégats cellulaires présents dans la suspension.  In particular, devices for mixing two liquids are known, in particular in the patent document WO 2006/060282. More particularly, the device described in the latter is intended to allow the mixing and lysis of cells in order to promote a release of biological compounds of interest. A cell suspension is fed, via an inlet pipe, to a conduit in which a lysis solution circulates. In order to further facilitate the lysis of the cells, the device described in this document may optionally include an impact target whose objective is to destroy the cell aggregates present in the suspension.
Toutefois, un tel dispositif n'est en aucun cas adapté à l'injection d'un gaz dans un liquide, ni, a fortiori, à une saturation dudit liquide par un tel gaz. En outre, le dispositif objet du document susmentionné n'évoque en aucun cas, ni ne résout, les problématiques liées aux chemins préférentiels que peut emprunter un gaz dans un liquide .  However, such a device is in no way adapted to the injection of a gas into a liquid, nor, a fortiori, to a saturation of said liquid by such a gas. In addition, the device object of the aforementioned document does not evoke in any case, nor solves, the problems related to preferential paths that can take a gas in a liquid.
Il en est de même dans le document de brevet US 2009/0079107, lequel décrit un mélangeur permettant de mélanger un additif liquide avec un polymère dissout dans un solvant . A cet effet, le mélangeur comporte un conduit de mélange, dans lequel circule le flux de polymère, et un conduit pour l'alimentation en un additif liquide. Dans le conduit de mélange, une chambre de mélange est ménagée, celle-ci comportant un moyeu de rotor mobile en rotation de sorte à créer un flux de cisaillement en vue de faciliter le mélange entre la solution incorporant l'additif liquide et le polymère. It is the same in the patent document US 2009/0079107, which describes a mixer for mixing a liquid additive with a polymer dissolved in a solvent. For this purpose, the mixer comprises a mixing duct, in which flows the polymer stream, and a conduit for supplying a liquid additive. In the mixing duct, a mixing chamber is provided, the latter having a rotatable rotor hub so as to create a shear flow in order to facilitate mixing between the solution incorporating the liquid additive and the polymer.
L'invention offre donc la possibilité de pallier les divers inconvénients de l'état de la technique en proposant un saturateur dans lequel la distance entre le dispositif d' injection de gaz et le noyau central est réduite par rapport à la distance qui existe traditionnellement entre ces deux éléments d'un saturateur.  The invention thus offers the possibility of overcoming the various disadvantages of the state of the art by proposing a saturator in which the distance between the gas injection device and the central core is reduced compared to the distance that traditionally exists between these two elements of a saturator.
A cet effet, la présente invention concerne un saturateur permettant l'injection d'un gaz dans un liquide, comprenant un corps dans lequel circule un flux de liquide depuis, en amont, au moins un orifice d'entrée vers au moins un orifice de sortie situé en aval, ledit corps comportant au moins un dispositif d'injection de gaz en amont et dans l'axe d'un noyau central de dispersion dudit gaz au sein dudit liquide. Le saturateur selon l'invention est caractérisé par le fait que le dispositif d' injection de gaz est situé à une distance du noyau central comprise entre 2 et 20 mm, pour éviter que ledit gaz emprunte des chemins préférentiels entre le dispositif d' injection de gaz et le noyau central .  For this purpose, the present invention relates to a saturator for injecting a gas into a liquid, comprising a body in which a flow of liquid flows from, upstream, at least one inlet orifice to at least one orifice of outlet located downstream, said body comprising at least one gas injection device upstream and in the axis of a central dispersion core of said gas within said liquid. The saturator according to the invention is characterized in that the gas injection device is located at a distance from the central core of between 2 and 20 mm, to prevent said gas from passing preferentially between the injection device of the gas injection device. gas and the central core.
Plus particulièrement, cette distance entre le dispositif d' injection de gaz et le noyau central peut être comprise entre 5 et 10 mm.  More particularly, this distance between the gas injection device and the central core may be between 5 and 10 mm.
Plus préfèrentiellement encore, cette distance est comprise entre 6 et 8 mm.  More preferably still, this distance is between 6 and 8 mm.
Une telle distance, comprise entre 6 et 8 mm, entre le dispositif d'injection de gaz et le noyau central, permet encore une amélioration de la dissolution du gaz dans le liquide, car les chemins préférentiels du gaz au sein dudit liquide sont quasiment inexistants .  Such a distance, between 6 and 8 mm, between the gas injection device and the central core, still allows an improvement in the dissolution of the gas in the liquid, because the preferential paths of the gas within said liquid are virtually non-existent .
Selon un mode de réalisation tout à fait intéressant, le dispositif d' injection de gaz constitue des moyens de fixation et de maintien du noyau central en position axiale dans le corps dudit saturateur. According to a very interesting embodiment, the gas injection device constitutes fastening means and maintaining the central core in axial position in the body of said saturator.
De manière avantageuse, le dispositif d'injection de gaz constitue un moyen de réglage du positionnement axial du noyau central dans le corps dudit saturateur.  Advantageously, the gas injection device constitutes a means for adjusting the axial positioning of the central core in the body of said saturator.
Selon une autre particularité de l'invention, le noyau central défini, avec la paroi interne du corps du saturateur, au moins un anneau de turbulence .  According to another feature of the invention, the central core defined, with the inner wall of the saturator body, at least one turbulence ring.
Plus particulièrement, un anneau de turbulence est défini d'une part par deux saillies circulaires successives décalées axialement le long de la paroi interne du corps du saturateur et d'autre part par deux rebords périphériques du noyau central agissant chacun avec une saillie circulaire de sorte à former un clapet et un siège de soupape .  More particularly, a turbulence ring is defined on the one hand by two successive circular protrusions offset axially along the inner wall of the body of the saturator and on the other hand by two peripheral edges of the central core each acting with a circular projection so forming a valve and a valve seat.
De manière intéressante, le corps dudit saturateur peut être composé d'un ou plusieurs modules, chaque module comportant un corps tubulaire et un noyau central pourvu à au moins une extrémité de moyens de raccordement à un autre module et/ou un module d'injection et/ou un module de sortie et/ou un manchon d'entrée et/ou un manchon de sortie.  Interestingly, the body of said saturator may be composed of one or more modules, each module comprising a tubular body and a central core provided with at least one end of connection means to another module and / or an injection module and / or an output module and / or an input sleeve and / or an output sleeve.
La présente invention comporte de nombreux avantages. D'une part, le dispositif selon l'invention permet de contrecarrer de manière substantielle la création de chemins préférentiels empruntés par le gaz au travers du saturateur. De ce fait, le présent dispositif permet une répartition et une dissolution optimale dudit gaz dans le liquide. D'autre part, le saturateur selon l'invention permet également d'empêcher la formation d'un mélange diphasique entre le gaz et le liquide en amont des moyens de turbulence, une telle formation défavorisant également une dissolution satisfaisante du gaz au sein du liquide.  The present invention has many advantages. On the one hand, the device according to the invention makes it possible to substantially counteract the creation of preferential paths taken by the gas through the saturator. As a result, the present device allows optimum distribution and dissolution of said gas in the liquid. On the other hand, the saturator according to the invention also makes it possible to prevent the formation of a diphasic mixture between the gas and the liquid upstream of the turbulence means, such a formation also disadvantages a satisfactory dissolution of the gas within the liquid. .
D'autres caractéristiques et avantages de l'invention ressortiront de la description détaillée qui va suivre des modes de réalisation non limitatifs de l'invention, en référence à l'unique figure annexée représentant schématiquement une vue en coupe transversale de l'un des modes de réalisation du saturateur selon l'invention. Tel que représentée sur la figure 1, la présente invention concerne un saturateur 1 destiné à permettre l'injection d'un gaz dans un liquide . Other features and advantages of the invention will emerge from the following detailed description of non-limiting embodiments of the invention, with reference to the single appended figure schematically showing a cross-sectional view of one of the modes. of realization of the saturator according to the invention. As shown in Figure 1, the present invention relates to a saturator 1 for allowing the injection of a gas into a liquid.
Le présent saturateur 1 est destiné plus particulièrement à être intégré à une installation permettant notamment la carbonatation d'un liquide et/ou l'extraction d'un gaz contenu dans un liquide .  The present saturator 1 is intended more particularly to be integrated into an installation allowing in particular the carbonation of a liquid and / or the extraction of a gas contained in a liquid.
On entend par le terme « carbonatation » le fait de dissoudre du dioxyde de carbone C02 dans un liquide. En ce qui concerne l'extraction d'un gaz dissout dans un liquide, celle-ci est effectuée traditionnellement par addition d'un second gaz, appelé gaz d' entraînement , dans ce liquide. Le gaz dissout à extraire peut notamment consister en du dioxygène 02 ; dans ce cas, l'élimination de ce gaz dissout est appelée « désaération », ou « désoxygénation ». The term "carbonation" is understood to mean dissolving carbon dioxide C0 2 in a liquid. As regards the extraction of a gas dissolved in a liquid, this is done traditionally by the addition of a second gas, called entrainment gas, in this liquid. The dissolved gas to be extracted may in particular consist of O 2 dioxygen; in this case, the removal of this dissolved gas is called "deaeration", or "deoxygenation".
Le gaz qui est injecté dans le liquide, par l'intermédiaire du saturateur 1 selon l'invention, peut être quelconque. Il peut notamment consister en du dioxyde de carbone C02, du diazote N2, ou bien encore en du dioxygène 02. Il est également possible d'injecter, dans un liquide, un mélange composé de plusieurs de ces gaz . The gas which is injected into the liquid, via the saturator 1 according to the invention, can be arbitrary. It may especially consist of carbon dioxide C0 2 , dinitrogen N 2 , or even oxygen 0 2 . It is also possible to inject into a liquid a mixture composed of several of these gases.
Le liquide dans lequel est injecté le gaz peut également être de tout type ; par exemple, ledit liquide peut consister en une boisson quelconque, avec ou sans pulpes, carbonatée ou non, telle que notamment du jus de fruits, du vin, du cidre, du lait, de la bière, du sirop, de l'eau, ou encore en un mélange incorporant plusieurs de ces liquides, comme par exemple un mélange constitué par de l'eau et un sirop. Ce liquide peut également consister, par exemple, en de la soupe, de la sauce, un soda ou de la limonade .  The liquid into which the gas is injected can also be of any type; for example, said liquid may consist of any beverage, with or without pulp, carbonated or not, such as in particular fruit juice, wine, cider, milk, beer, syrup, water, or alternatively a mixture incorporating several of these liquids, such as for example a mixture consisting of water and a syrup. This liquid may also consist, for example, of soup, sauce, soda or lemonade.
Lorsque le gaz injecté dans le liquide par l'intermédiaire du présent saturateur 1 consiste en du dioxyde de carbone C02, ledit saturateur 1 permet de carbonater ledit liquide par dissolution du C02 dans celui-ci ; on obtient ainsi une boisson gazeuse, comme par exemple de l'eau gazeuse dans le cas où le liquide consiste en de l'eau. Selon un autre exemple d'application de l'invention, le gaz injecté dans le liquide peut consister en du diazote N2. Dans ce cas de figure, ledit liquide peut ensuite être acheminé vers un dispositif destiné à permettre un entraînement par exemple du dioxygène 02, naturellement présent et dissout dans le liquide. L' entraînement du dioxygène est donc facilité par le diazote N2 dissout par l'intermédiaire du saturateur 1. Cela permet avantageusement de diminuer considérablement la concentration de dioxygène 02 présent au départ dans le liquide, et ainsi d'éviter les phénomènes d'oxydation pouvant résulter de la présence de ce gaz dans le liquide. When the gas injected into the liquid via the present saturator 1 consists of carbon dioxide C0 2 , said saturator 1 makes it possible to carbonate said liquid by dissolving the C0 2 therein; a gaseous drink is thus obtained, for example gaseous water in the case where the liquid consists of water. According to another example of application of the invention, the gas injected into the liquid may consist of dinitrogen N 2 . In this case, said liquid may then be conveyed to a device for enabling a drive, for example, oxygen 0 2, naturally present and dissolved in the liquid. The entrainment of the oxygen is thus facilitated by the nitrogen N 2 dissolved via the saturator 1. This advantageously makes it possible to considerably reduce the concentration of O 2 O 2 present initially in the liquid, and thus to avoid the phenomena of oxidation that may result from the presence of this gas in the liquid.
Pour en revenir à présent au saturateur 1 en lui-même, celui-ci comporte un corps 2, de préférence sensiblement tubulaire, au travers duquel circule un flux de liquide quelconque.  Returning now to the saturator 1 in itself, it comprises a body 2, preferably substantially tubular, through which flows any liquid flow.
Ledit flux de liquide traverse le corps 2 du saturateur 1 depuis au moins un orifice d' entrée 3 amont vers au moins un orifice de sortie 4, situé en aval par rapport audit orifice d'entrée 3.  Said flow of liquid passes through the body 2 of the saturator 1 from at least one upstream inlet opening 3 to at least one outlet orifice 4 situated downstream with respect to said inlet orifice 3.
Le corps 2 du saturateur 1 selon la présente invention comporte également au moins un dispositif d' injection de gaz 5 situé en amont de moyens de dissolution. Un tel dispositif d'injection de gaz 5 est préféré à un dispositif d'aspiration par effet Venturi, qui pourrait également permettre une dissolution du gaz dans un liquide, mais avec lequel cette dissolution serait moins efficace.  The body 2 of the saturator 1 according to the present invention also comprises at least one gas injection device 5 located upstream of the dissolution means. Such a gas injection device 5 is preferred to a Venturi suction device, which could also allow dissolution of the gas in a liquid, but with which this dissolution would be less effective.
De plus, en aval de ce dispositif d'injection 5 peut être placé un noyau central 6, ce dernier étant plus particulièrement destiné à favoriser une diffusion du gaz injecté dans ledit liquide .  In addition, downstream of this injection device 5 may be placed a central core 6, the latter being more particularly intended to promote diffusion of the gas injected into said liquid.
Selon un mode de réalisation avantageux, le corps 2 du saturateur 1, de section tubulaire, s'étend de manière symétrique autour d'un axe 7 entre son entrée 3 et sa sortie 4, ledit dispositif d' injection 5 et le noyau central 6 étant eux- mêmes disposés de manière axiale dans ce corps 2 dudit saturateur 1. De façon particulièrement originale, le dispositif d'injection de gaz 5, autrement dit le point où le gaz entre en contact avec le liquide, est situé, en amont du noyau central 6, à une distance suffisamment faible pour que le gaz injecté d'une part n'emprunte pas de chemins préférentiels au sein du liquide entre le dispositif d' injection 5 et ledit noyau 6 et d' autre part diffuse de manière sensiblement régulière et homogène dans l'espace annulaire autour de ce dernier. According to an advantageous embodiment, the body 2 of the saturator 1, of tubular section, extends symmetrically about an axis 7 between its inlet 3 and its outlet 4, said injection device 5 and the central core 6 being themselves axially arranged in this body 2 of said saturator 1. In a particularly novel way, the gas injection device 5, in other words the point where the gas comes into contact with the liquid, is situated, upstream of the central core 6, at a sufficiently small distance for the gas injected a part does not take preferential paths in the liquid between the injection device 5 and said core 6 and secondly diffuses substantially uniformly and homogeneously in the annular space around the latter.
Plus précisément, cette distance entre le dispositif d' injection 5 et ledit noyau central 6 est comprise entre 2 et 20 mm.  More specifically, this distance between the injection device 5 and said central core 6 is between 2 and 20 mm.
Plus avantageusement, cette distance est comprise entre 5 et 10 mm.  More preferably, this distance is between 5 and 10 mm.
En appliquant une telle distance, les chemins préférentiels empruntés par le gaz au sein dudit liquide sont substantiellement diminués. En conséquence, la dissolution du gaz dans le liquide est meilleure, et, lorsque le gaz consiste en du C02, la carbonatation du liquide est optimale. By applying such a distance, the preferential paths taken by the gas within said liquid are substantially reduced. As a result, the dissolution of the gas in the liquid is better, and when the gas consists of C0 2 , the carbonation of the liquid is optimal.
Préférentiellement , cette distance comprise entre 6 et 8 mm.  Preferably, this distance between 6 and 8 mm.
Le choix d'une telle distance, entre le point où le gaz est injecté dans le liquide et le noyau central 6, permet encore d'améliorer la dissolution dudit gaz dans un liquide, en réduisant encore les trajectoires préférentielles empruntées par ledit gaz .  The choice of such a distance, between the point where the gas is injected into the liquid and the central core 6, further improves the dissolution of said gas in a liquid, further reducing the preferred paths taken by said gas.
Préférentiellement , le dispositif d'injection de gaz 5 comporte une buse d'injection 8 cylindrique dont l'axe est confondu avec 1 ' axe 7 du corps 2 du saturateur 1 , ladite buse d'injection 8 comportant au moins, à son extrémité, un orifice d'injection de gaz dans l'axe 7 du corps 2 dudit saturateur 1, ledit orifice d' injection étant situé à la distance précitée du noyau central 6.  Preferably, the gas injection device 5 comprises a cylindrical injection nozzle 8 whose axis coincides with the axis 7 of the body 2 of the saturator 1, said injection nozzle 8 comprising at least, at its end, a gas injection orifice in the axis 7 of the body 2 of said saturator 1, said injection orifice being situated at the aforementioned distance from the central core 6.
Selon un autre mode de réalisation, qui est celui représenté sur la figure annexée, la buse d'injection 8 comporte, au niveau de sa périphérie et à la distance précitée par rapport au noyau central 6, des orifices d'injection 9 de gaz avantageusement répartis de manière régulière autour de ladite buse 8. According to another embodiment, which is that represented in the appended FIGURE, the injection nozzle 8 comprises, at its periphery and at the distance mentioned above with respect to the central core 6, injection orifices 9 of FIG. gas advantageously distributed regularly around said nozzle 8.
De façon préférentielle, ladite buse d'injection 8 comporte des moyens de raccordement à une alimentation externe en gaz . En particulier, ces moyens de raccordement sont définis par un conduit de raccordement 10 traversant la paroi du corps 2 du saturateur 1.  Preferably, said injection nozzle 8 comprises means for connection to an external gas supply. In particular, these connecting means are defined by a connection duct 10 passing through the wall of the body 2 of the saturator 1.
Ainsi, ces moyens de raccordement constituent des moyens de maintien et de positionnement axial de la buse d' injection 8 dans le corps 2 du saturateur 1.  Thus, these connection means constitute means for holding and axial positioning of the injection nozzle 8 in the body 2 of the saturator 1.
De manière avantageuse, le dispositif d'injection 5 constitue substantiellement des moyens de fixation et de maintien du noyau central 6 en position axiale dans le corps 2 du saturateur 1.  Advantageously, the injection device 5 constitutes substantially means for fixing and holding the central core 6 in axial position in the body 2 of the saturator 1.
Selon un mode de réalisation particulièrement avantageux du saturateur 1, le noyau central 6 est fixé sur l'extrémité avale de la buse d'injection 8.  According to a particularly advantageous embodiment of the saturator 1, the central core 6 is fixed on the downstream end of the injection nozzle 8.
Plus particulièrement encore, ladite buse d'injection 8 est prolongée, au-delà du ou des orifices d'injection 9, par un embout 11 de fixation du noyau central 6.  More particularly still, said injection nozzle 8 is extended, beyond the injection orifice (s) 9, by a tip 11 for fixing the central core 6.
Selon encore un autre mode de réalisation, le saturateur 1 selon l'invention comporte des moyens de réglage du positionnement axial du noyau central 6 à l'intérieur du corps 2 dudit saturateur 1.  According to yet another embodiment, the saturator 1 according to the invention comprises means for adjusting the axial positioning of the central core 6 inside the body 2 of said saturator 1.
Avantageusement, ces moyens de réglage sont constitués par l'embout 11 de fixation associé à la buse d'injection 8.  Advantageously, these adjustment means are constituted by the attachment tip 11 associated with the injection nozzle 8.
Tout particulièrement, cet embout de fixation 11 est défini sous forme d'une tige filetée sur laquelle vient se visser le noyau central 6 au travers d'un trou taraudé de section adaptée, celui-ci étant ménagé axialement au niveau de l'extrémité amont du noyau central 6.  In particular, this fastener 11 is defined in the form of a threaded rod on which is screwed the central core 6 through a threaded hole of adapted section, the latter being provided axially at the upstream end. of the central nucleus 6.
De façon particulièrement avantageuse, ledit noyau central In a particularly advantageous manner, said central core
6 du saturateur 1 définit, avec la paroi interne 12 du corps 2 dudit saturateur 1, au moins un anneau de turbulence 13. 6 of the saturator 1 defines, with the inner wall 12 of the body 2 of said saturator 1, at least one turbulence ring 13.
Un tel anneau de turbulence 13 est plus précisément défini d'une part au niveau de la paroi interne 12 du corps 2 du saturateur 1 par deux saillies 14, 141 circulaires successives et décalées axialement le long de cette paroi interne 12 et, d'autre part, au niveau du noyau central 6 par deux rebords 15, 151 agissant chacun respectivement avec une saillie circulaire 14, 141, à la manière d'un clapet et d'un siège de soupape. Such a turbulence ring 13 is more precisely defined on the one hand at the inner wall 12 of the body 2 of the saturator 1 by two projections 14, 141 successive circular and offset axially along this inner wall 12 and, secondly, at the central core 6 by two flanges 15, 151 each acting respectively with a circular projection 14, 141, in the manner of a valve and a valve seat.
Comme visible sur la figure annexée, entre ces deux saillies circulaires 14, 141 successives et ces deux rebords 15, 151 du noyau central 6, il apparaît un espace annulaire correspondant audit anneau de turbulence 13.  As can be seen in the appended FIGURE, between these two successive circular protrusions 14, 141 and these two flanges 15, 151 of the central core 6, there appears an annular space corresponding to said turbulence ring 13.
Le noyau central 6 peut alors agir de bas en haut ou de haut en bas, un rebord 15, 151 et une saillie circulaire 14, 141 pouvant alors coopérer conjointement, l'un étant disposé au dessus de l'autre comme cela apparaît sur la figure annexée.  The central core 6 can then act from bottom to top or from top to bottom, a flange 15, 151 and a circular projection 14, 141 can then cooperate jointly, one being arranged above the other as it appears on the attached figure.
Selon un mode de réalisation avantageux, non visible sur la figure annexée, entre deux saillies circulaires 14, 141, la paroi interne 12 du corps 2 du saturateur 1 peut être configurée en forme d'une ou plusieurs cavités, ces dernières contribuant là encore à augmenter l'effet de turbulence recherché pour une bonne dissolution du gaz au sein du liquide.  According to an advantageous embodiment, not visible in the appended figure, between two circular projections 14, 141, the inner wall 12 of the body 2 of the saturator 1 can be configured in the form of one or more cavities, the latter again contributing to increase the desired turbulence effect for a good dissolution of the gas within the liquid.
De façon avantageuse, le saturateur 1 selon l'invention peut encore comporter au moins un moyen d'injection d'un composant complémentaire dans le liquide circulant dans ledit saturateur, ce composant pouvant notamment consister en un floculant ou en un coagulant.  Advantageously, the saturator 1 according to the invention may also comprise at least one means for injecting a complementary component into the liquid circulating in said saturator, this component possibly being a flocculant or a coagulant.
La présente invention concerne également un saturateur 1 dont le corps est composé de plusieurs modules adjacents, chacun de ces modules comportant au moins, d'une part, un corps tubulaire 2 et, d'autre part, un noyau central 6.  The present invention also relates to a saturator 1 whose body is composed of several adjacent modules, each of these modules comprising at least, on the one hand, a tubular body 2 and, on the other hand, a central core 6.
De plus ces modules adjacents sont préférentiellement pourvus à au moins l'une de leurs extrémités amont et/ou avale de moyens de raccordement permettant un raccordement d'un module à un module précédent et/ou un module suivant . De tels moyens de raccordement peuvent emprunter la forme de brides de raccordement bien connues par l'homme du métier.  In addition these adjacent modules are preferably provided with at least one of their upstream ends and / or downstream connection means for connecting a module to a previous module and / or a next module. Such connection means may take the form of connection flanges well known to those skilled in the art.
Avantageusement, le premier module, situé en amont du ou des modules suivants, forme un module d'injection avec l'orifice d'entrée amont 3 et comporte au moins un dispositif d'injection de gaz 5. Le dernier module, situé en aval des autres modules, constitue quant à lui un module de sortie avec un orifice de sortie aval 4. Advantageously, the first module, located upstream of the following module or modules, forms an injection module with the orifice upstream inlet 3 and comprises at least one gas injection device 5. The last module, located downstream of the other modules, constitutes an output module with a downstream outlet orifice 4.
Ainsi, par exemple, lorsque le saturateur 1 comporte trois modules adjacents, c'est-à-dire un module d'injection, un module intermédiaire et un module de sortie, ledit module intermédiaire comporte, d'une part, au niveau de son extrémité amont, des moyens de raccordement au module d'injection et, au niveau de son extrémité avale, des moyens de raccordement au module de sortie .  Thus, for example, when the saturator 1 comprises three adjacent modules, that is to say an injection module, an intermediate module and an output module, said intermediate module comprises, on the one hand, at its upstream end, connecting means to the injection module and, at its downstream end, connecting means to the output module.
Toutefois selon un mode de réalisation préférentiel, tous les modules à noyau central 6 sont identiques, le saturateur 1 comportant en outre un manchon d'entrée avec un orifice d'entrée amont 3 et équipé d'un dispositif d'injection 5, ainsi qu'un manchon de sortie pourvu d'un orifice de sortie aval 4.  However, according to a preferred embodiment, all the core core modules 6 are identical, the saturator 1 further comprising an inlet sleeve with an upstream inlet port 3 and equipped with an injection device 5, as well as an outlet sleeve provided with a downstream outlet port 4.
La figure 1 illustre encore une combinaison de ces deux solutions, le saturateur 1 étant constitué d'un manchon d'entrée avec orifice d'entrée 3 et dispositif d'injection 5 et un module de sortie, comportant, lui, un corps tubulaire 2 avec noyau central 6 et un orifice de sortie 4. Entre ce manchon d'entrée et le module de sortie sont susceptibles d'être intercalés un ou plusieurs modules intermédiaires . Cette solution présente l'avantage de faciliter l'assemblage ; en effet, sur le manchon d'entrée peuvent être fixés les noyaux centraux 6, eux-mêmes connectables entre eux, grâce à des moyens de raccordement adaptés, notamment de type vissage ou similaires .  FIG. 1 further illustrates a combination of these two solutions, the saturator 1 consisting of an inlet sleeve with an inlet orifice 3 and an injection device 5 and an exit module, comprising, itself, a tubular body 2 with central core 6 and an outlet port 4. Between this inlet sleeve and the output module are interchangeable one or more intermediate modules. This solution has the advantage of facilitating assembly; in fact, on the inlet sleeve can be fixed the central cores 6, themselves connectable to each other, thanks to suitable connection means, in particular screw-type or similar.
De la sorte chaque module peut former un étage de dissolution, le saturateur 1 comportant autant d'étages que souhaité .  In this way each module can form a dissolution stage, the saturator 1 having as many stages as desired.
A noter au passage, que chaque étage peut lui-même comprendre un ou plusieurs anneaux de turbulence 13.  Note in passing, that each floor itself may include one or more rings of turbulence 13.
En ce qui concerne à présent les différentes applications du saturateur 1 selon la présente invention, celui-ci peut notamment être intégré à une installation plus complexe destinée à permettre la carbonatation de liquides, à partir de constituants liquides et gazeux. As regards the various applications of the saturator 1 according to the present invention, it can in particular be integrated into a more complex installation intended to allow the carbonation of liquids from liquid and gaseous constituents.
Une telle installation est par exemple décrite plus en détail dans la demande de brevet français portant le numéro F 2 949 355.  Such an installation is for example described in more detail in the French patent application number F 2 949 355.
Le présent saturateur 1 peut également être inséré dans une installation destinée à permettre l'élimination d'un gaz dissout naturellement au sein d'un liquide, ledit gaz pouvant notamment consister en du dioxygène . Dans ce cas, le gaz injecté via ledit saturateur 1 sert de gaz d' entraînement au second gaz présent dans le liquide .  The present saturator 1 can also be inserted into an installation intended to allow the elimination of a gas dissolved naturally in a liquid, said gas being able in particular to consist of dioxygen. In this case, the gas injected via said saturator 1 serves as a gas for driving the second gas present in the liquid.
Une telle application est notamment avantageuse dans le cas où le liquide en question consiste par exemple en du vin et que l'on souhaite désoxygéner ce dernier ; on injecte alors dans le vin du diazote N2, par l'intermédiaire du saturateur 1 selon l'invention, de manière à faciliter l' entraînement du dioxygène 02 par le N2. Le liquide à désoxygéner peut également consister en tout type de liquide . Such an application is particularly advantageous in the case where the liquid in question consists for example of wine and it is desired to deoxygenate the latter; then, in the wine, dinitrogen N 2 is injected, via the saturator 1 according to the invention, so as to facilitate the entrainment of oxygen O 2 by N 2 . The liquid to be deoxygenated may also consist of any type of liquid.
Plus particulièrement, lorsque le diazote N2 est injecté dans un liquide avec le saturateur 1 selon l'invention, il a été déterminé que le rendement de désoxygénation était amélioré d'environ 30% par rapport à une désoxygénation d'un liquide lorsque le gaz d' entraînement N2 est injecté via un saturateur traditionnel de l'état de la technique. En d'autres termes, la quantité d' oxygène dissout est environ 30% moindre avec le présent saturateur 1, ce qui est rendu possible grâce à l'excellente dissolution du N2 dans le liquide. Il en résulte que les phénomènes d'oxydation, dans le liquide en question, sont substantiellement diminués . More particularly, when the N 2 dinitrogen is injected into a liquid with the saturator 1 according to the invention, it was determined that the deoxygenation efficiency was improved by about 30% compared to a deoxygenation of a liquid when the gas The N 2 drive is injected via a conventional saturator of the state of the art. In other words, the amount of dissolved oxygen is about 30% less with the present saturator 1, which is made possible by the excellent dissolution of N 2 in the liquid. As a result, the oxidation phenomena in the liquid in question are substantially reduced.
II est également possible que l'on veuille éliminer du dioxyde de carbone C02 présent dans un liquide, notamment dans de l'eau présentant une carbonatation naturelle à la source. Dans ce cas de figure, le gaz injecté par l'intermédiaire du saturateur 1 selon l'invention peut consister notamment en du diazote N2 et/ou en du dioxygène 02 et/ou tout autre gaz et/ou mélange de gaz . Une fois l'injection de gaz par l'intermédiaire du saturateur 1 effectuée, l' entraînement du gaz dissout peut être obtenu par tout moyen connu de l'homme du métier. Traditionnellement, le liquide à désoxygéner est disposé dans une cuve, celle-ci pouvant éventuellement être mise et maintenue sous vide grâce à l'action d'une pompe à vide. It is also possible that one wants to remove carbon dioxide C0 2 present in a liquid, especially in water having a natural carbonation at the source. In this case, the gas injected via the saturator 1 according to the invention may consist in particular of nitrogen N 2 and / or oxygen 0 2 and / or any other gas and / or gas mixture. Once the injection of gas via the saturator 1 has been carried out, the entrainment of the dissolved gas can be obtained by any means known to those skilled in the art. Traditionally, the liquid to be deoxygenated is placed in a tank, which can optionally be placed and kept under vacuum by the action of a vacuum pump.
Après l'étape d'élimination d'un gaz dissout naturellement dans un liquide, il reste toujours envisageable de carbonater celui-ci, toujours par l'intermédiaire du saturateur 1 selon la présente invention. Ainsi, une installation peut comporter d'une part un premier saturateur 1 destiné à permettre une dissolution d'un gaz d' entraînement favorisant l'élimination d'un gaz naturellement présent dans un liquide et, d'autre part, en aval de ce premier saturateur 1, un second saturateur 1 pour la carbonatation de ce même liquide par dissolution de C02 dans ce dernier . After the step of removing a gas naturally dissolved in a liquid, it is still possible to carbonate it, always via the saturator 1 according to the present invention. Thus, an installation may comprise on the one hand a first saturator 1 intended to allow a dissolution of a entrainment gas favoring the elimination of a gas naturally present in a liquid and, on the other hand, downstream thereof. first saturator 1, a second saturator 1 for the carbonation of this same liquid by dissolving CO 2 in the latter.
De façon particulièrement avantageuse, et qui ressort de l'ensemble de la présente description, le saturateur 1 selon l'invention permet un meilleur rendement de dispersion du gaz dans le liquide dans lequel il est injecté, par rapport aux saturateurs traditionnellement utilisés dans l'état de la technique. Une amélioration de ce rendement est notamment due au fait que le présent saturateur 1 permet d'éviter que le gaz emprunte des chemins préférentiels avant d'atteindre le noyau central 6 dudit saturateur 1.  In a particularly advantageous manner, and which is apparent from the whole of the present description, the saturator 1 according to the invention allows a better dispersion performance of the gas in the liquid in which it is injected, compared to the saturators conventionally used in the state of the art. An improvement in this efficiency is due in particular to the fact that the present saturator 1 makes it possible to prevent the gas from taking preferential paths before reaching the central core 6 of said saturator 1.

Claims

Saturateur (1) permettant l'injection d'un gaz dans un liquide, comprenant un corps (2) dans lequel circule un flux de liquide depuis, en amont, au moins un orifice d'entrée (3) vers au moins un orifice de sortie (4) situé en aval, ledit corps (2) comportant au moins un dispositif d'injection de gaz (5) en amont et dans l'axe (7) d'un noyau central (6) de dispersion dudit gaz au sein dudit liquide, ledit saturateur (1) étant caractérisé en ce que le dispositif d'injection de gaz (5) est situé à une distance du noyau central (6) comprise entre 2 et 20 mm, pour éviter que ledit gaz emprunte des chemins préférentiels entre le dispositif d'injection de gaz (5) et le noyau central (6) . Saturator (1) for injecting a gas into a liquid, comprising a body (2) in which a flow of liquid flows from, upstream, at least one inlet orifice (3) to at least one orifice of outlet (4) located downstream, said body (2) comprising at least one gas injection device (5) upstream and in the axis (7) of a central core (6) for dispersing said gas within said liquid, said saturator (1) being characterized in that the gas injection device (5) is located at a distance from the central core (6) of between 2 and 20 mm, to prevent said gas from taking preferential paths between the gas injection device (5) and the central core (6).
Saturateur (1) selon la revendication 1 caractérisé en ce que la distance entre le dispositif d'injection de gaz (5) et le noyau central (6) est comprise entre 5 et 10mm. Saturator (1) according to claim 1 characterized in that the distance between the gas injection device (5) and the central core (6) is between 5 and 10mm.
Saturateur (1) selon la revendication 1 caractérisé en ce que la distance entre le dispositif d'injection de gaz (5) et le noyau central (6) est comprise entre 6 et 8 mm. Saturator (1) according to claim 1 characterized in that the distance between the gas injection device (5) and the central core (6) is between 6 and 8 mm.
Saturateur (1) selon l'une quelconque des revendications 1 à 3 caractérisé en ce que le dispositif d' injection de gaz (5) constitue des moyens de fixation et de maintien du noyau central (6) en position axiale dans le corps (2) dudit saturateur (1) . Saturator (1) according to any one of claims 1 to 3 characterized in that the gas injection device (5) constitutes means for fixing and maintaining the central core (6) in axial position in the body (2). ) of said saturator (1).
Saturateur (1) selon l'une quelconque des revendications 1 à 4 caractérisé en ce que le dispositif d' injection de gaz (5) constitue un moyen de réglage du positionnement axial du noyau central (6) dans le corps (2) dudit saturateur (D · Saturateur (1) selon l'une quelconque des revendications 1 à 5 caractérisé en ce que le noyau central (6) défini, avec la paroi interne (12) du corps (2) du saturateur (1) , au moins un anneau de turbulence (13) . Saturator (1) according to any one of claims 1 to 4 characterized in that the gas injection device (5) constitutes a means for adjusting the axial positioning of the central core (6) in the body (2) of said saturator (D · Saturator (1) according to any one of claims 1 to 5 characterized in that the central core (6) defined, with the inner wall (12) of the body (2) of the saturator (1), at least one ring of turbulence (13).
Saturateur (1) selon la revendication 6 caractérisé en ce qu'un anneau de turbulence (13) est défini d'une part par deux saillies (14, 141) circulaires successives décalées axialement le long de la paroi interne (12) du corps (2) du saturateur (1) et d'autre part par deux rebords périphériques (15, 151) du noyau central (6) agissant chacun avec une saillie circulaire (14) de sorte à former un clapet et un siège de soupape . Saturator (1) according to claim 6 characterized in that a turbulence ring (13) is defined on the one hand by two successive circular projections (14, 141) offset axially along the inner wall (12) of the body ( 2) of the saturator (1) and secondly by two peripheral flanges (15, 151) of the central core (6) each acting with a circular projection (14) so as to form a valve and a valve seat.
Saturateur (1) selon l'une quelconque des revendications 1 à 7 caractérisé en ce que le corps (2) dudit saturateur (1) est composé d'un ou plusieurs modules, chaque module comportant un corps tubulaire (2) et un noyau central (6) pourvu à au moins une extrémité de moyens de raccordement à un autre module et/ou un module d'injection et/ou un module de sortie et/ou un manchon d'entrée et/ou un manchon de sortie . Saturator (1) according to any one of claims 1 to 7 characterized in that the body (2) of said saturator (1) is composed of one or more modules, each module comprising a tubular body (2) and a central core (6) provided at least one end of connecting means to another module and / or an injection module and / or an output module and / or an inlet sleeve and / or an outlet sleeve.
PCT/FR2013/052437 2012-10-12 2013-10-11 Saturator for injecting a gas into a liquid WO2014057230A1 (en)

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FR1259779A FR2996781B1 (en) 2012-10-12 2012-10-12 SATURATOR FOR INJECTING GAS INTO A LIQUID
FR1259779 2012-10-12

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US4173178A (en) 1976-10-01 1979-11-06 Dieter Wieland Process for introducing a gas, in particular carbon dioxide, into a liquid, particularly a beverage, flowing through a line, and a device for performing the process
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WO2006060282A2 (en) 2004-11-30 2006-06-08 Merial Limited Mixing devices for chemical lysis of cells
US20080194868A1 (en) * 2003-03-04 2008-08-14 Kozyuk Oleg V Hydrodynamic cavitation crystallization device and process
US20090079107A1 (en) 2007-09-20 2009-03-26 Abiru Daisaku Mixer and mixing method of mixing polymer dope, and solution casting apparatus and process
EP2060318A1 (en) 2007-11-15 2009-05-20 YARA International ASA Apparatus and method for generating and distributing bubbles in a gas-liquid mixture
FR2949355A1 (en) 2009-09-03 2011-03-04 Georges Ollier INSTALLATION FOR PRODUCING A HOMOGENEOUS GAS MIXTURE FROM LIQUID AND GASEOUS CONSTITUENTS

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3735778A (en) * 1970-07-17 1973-05-29 M Garnier Driving of fluids
US3770208A (en) * 1970-11-23 1973-11-06 Ethyl Corp Mixing nozzle
US4173178A (en) 1976-10-01 1979-11-06 Dieter Wieland Process for introducing a gas, in particular carbon dioxide, into a liquid, particularly a beverage, flowing through a line, and a device for performing the process
US4299655A (en) * 1978-03-13 1981-11-10 Beloit Corporation Foam generator for papermaking machine
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US20080194868A1 (en) * 2003-03-04 2008-08-14 Kozyuk Oleg V Hydrodynamic cavitation crystallization device and process
US20040251566A1 (en) * 2003-06-13 2004-12-16 Kozyuk Oleg V. Device and method for generating microbubbles in a liquid using hydrodynamic cavitation
WO2006060282A2 (en) 2004-11-30 2006-06-08 Merial Limited Mixing devices for chemical lysis of cells
US20090079107A1 (en) 2007-09-20 2009-03-26 Abiru Daisaku Mixer and mixing method of mixing polymer dope, and solution casting apparatus and process
EP2060318A1 (en) 2007-11-15 2009-05-20 YARA International ASA Apparatus and method for generating and distributing bubbles in a gas-liquid mixture
FR2949355A1 (en) 2009-09-03 2011-03-04 Georges Ollier INSTALLATION FOR PRODUCING A HOMOGENEOUS GAS MIXTURE FROM LIQUID AND GASEOUS CONSTITUENTS

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FR2996781B1 (en) 2020-01-10
EP2906332A1 (en) 2015-08-19

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