EP0274370A1 - Installation for the recovery of a propellant gas and compressor used therefor - Google Patents

Installation for the recovery of a propellant gas and compressor used therefor Download PDF

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Publication number
EP0274370A1
EP0274370A1 EP87870189A EP87870189A EP0274370A1 EP 0274370 A1 EP0274370 A1 EP 0274370A1 EP 87870189 A EP87870189 A EP 87870189A EP 87870189 A EP87870189 A EP 87870189A EP 0274370 A1 EP0274370 A1 EP 0274370A1
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EP
European Patent Office
Prior art keywords
aforementioned
gas
piston
installation according
compressor
Prior art date
Legal status (The legal status 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 status listed.)
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EP87870189A
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German (de)
French (fr)
Inventor
Carlo Heylen
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CARON NV
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CARON NV
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D1/00—Apparatus or devices for dispensing beverages on draught
    • B67D1/04—Apparatus utilising compressed air or other gas acting directly or indirectly on beverages in storage containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D1/00—Apparatus or devices for dispensing beverages on draught
    • B67D1/04—Apparatus utilising compressed air or other gas acting directly or indirectly on beverages in storage containers
    • B67D1/0468—Apparatus utilising compressed air or other gas acting directly or indirectly on beverages in storage containers comprising means for the recovery of the gas acting on beverages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B25/00—Multi-stage pumps
    • F04B25/04—Multi-stage pumps having cylinders coaxial with, or parallel or inclined to, main shaft axis

Definitions

  • This invention relates to an installation making it possible to recover a working gas such as, for example, carbonic acid or nitrogen, used for the purpose of dispensing drinks, from one, but preferably several barrels.
  • a working gas such as, for example, carbonic acid or nitrogen
  • the object of the invention is to prescribe an installation which operates entirely automatically and which can be controlled from the place where the drink is dispensed.
  • the installation comprises, for each barrel, a first pipe for alternately supplying a gas to a barrel from which liquid is withdrawn and, when the latter no longer contains liquid but only gas, to suck this gas using a compressor and evacuate it to an expansion tank which can discharge the gas stored by supply lines to said drums, said supply pipes being connected to three-way electromagnetic valves beyond which the gas can flow to one of the drums considered or be sucked out of them by the aforementioned compressor.
  • the aforementioned three-way electromagnetic valves are connected to a common pipe which leads, via a bypass, to the aforementioned compressor, said compressor being, downstream thereof, connected by a pipe to at least one tank accumulation.
  • the invention also relates to the compressor of original design, operating without lubricant, which finds application in the installation according to the invention.
  • the installation shown schematically in Figure 1 is designed to recover a driving gas such as carbonic acid or nitrogen from drums 1, 2 and 3, when they no longer contain any drink and in order to lead gas to barrels when they are to dispense a drink.
  • a driving gas such as carbonic acid or nitrogen
  • the flow lines, partially visible, have the reference 4.
  • the pipes 5 ⁇ , 6 ⁇ and 7 ⁇ for the engine gas are derived from a main pipe 8.
  • a main pipe 8 On this main pipe 8 are mounted, downstream of the expansion tank 9, an assembly 10-11 constituted by a discharge valve of liquid, an activated carbon filter and a bacteriological filter.
  • the expansion tank 9 is, conventionally, fitted with a safety valve 12 and, on the line 13 which leads to the compressor 14, a non-return valve 15 is installed.
  • the drums 1, 2 and 3 are also put in communication with the compressor 14 using a pipe 16.
  • Each of the pipes 5, 6 and 7 can indeed be put in communication with this pipe 16 by the intervention of the three-way electromagnetic valves 17, 18 and 19.
  • a first branch 20, connects line 16 to the compressor 14.
  • a second branch, 21, leads to a line 22 and extends between the coil 23, connected in line 13 and a gas cylinder 24. It immediately appears that the supply lines 5 ⁇ , 6 ⁇ and 7 ⁇ transform, beyond the three-way valves 17, 18 and 19 what is called the first lines 5, 6 and 7 which act, both in order to recover the engine gas as well as for bringing it to new barrels from which the drink will have to be taken.
  • recovery tanks 25 On the pipe 22 are mounted recovery tanks 25. On the same pipe 22 are mounted one after the other the others: a valve 26, disposed between the compressor 14 and the bypass 21; a pressure detector 27; a safety valve 28 and, immediately downstream from the gas cylinder 24, a pressure regulator 29.
  • a non-return valve 32 is mounted on the bypass 21 .
  • the reference 34 represents a pressure detector with which the expansion tank is equipped 9.
  • the mini-computer of the installation is represented by the general reference 35 and the control panel with the reference 36.
  • the compressor 14 forms an essential element of the installation and is designed to require no lubricant, which makes its structure particularly original.
  • the compressor consists of a casing 37 having a cylindrical cavity for a double piston 38 which is driven back and forth within the cylindrical cavity of the casing. This back-and-forth movement is caused by a drive wheel 40 mounted eccentrically relative to the drive axis 39. This wheel is freely mounted on the axis 41 fixed on the disc 42 mounted on the drive axis 39.
  • the disc 42 is housed in a cylindrical cavity 43 which is in communication with the cylindrical space in which the piston 38 moves. The seal between said space and the outside is ensured by virtue of the presence of the sealing washer 44 which is supported by its folded rim on the drive shaft 39. In the space 43 opens the suction pipe 45 for the engine gas. Good cooling of the elements which constitute the piston 38 is thus ensured.
  • the outlet valves and the outlet pipes are provided at the two ends 46 and 47 arranged opposite one another in the compressor casing.
  • the inlet valves are designated by 48 and 49, the outlet valves bear the references 50 and 51.
  • the outlet pipes bear the references 52 and 52 ⁇ .
  • passages 53 and 53 ⁇ In the wall of the housing 37 are provided passages 53 and 53 ⁇ to allow the circulation of the engine gas in the direction of the valves entry 48 and 49.
  • the piston 38 which consists of two identical piston elements 54 equipped with segments 55.
  • the piston elements 54 which are made of a light metal such as l aluminum or an aluminum alloy, there is a piece forming a spacer 56 in the geometric axis of the piston elements 54 as well as a cylindrical piece forming a spacer 56 is a threaded rod which provides the connection between the piston elements 54 and the spacer 56 also blocking the metal discs 57.
  • These discs are provided to guarantee these piston elements against wear.
  • the space between the discs 57 and the drive wheel 40 must be chosen so that the rotation which is caused by the friction between the drive wheel 40 and the discs 57 can continue without difficulty but also without shock, in both directions.
  • each of the piston elements 54 consists of two parts.
  • the actual piston portion 54 made of a synthetic material such as that which is known in the trade under the name of "Rulon” and the elements 54 ⁇ made of light metal.
  • the compressor according to the invention is, as follows from the description which has just been given, gas-tight, requires no lubrication, which is an essential element. That no lubrication is necessary, results from the correct choice of the inlet of the suction line 45 for the engine gas which immediately cools the parts which otherwise would heat up and, on the other hand, as desired materials of which the elements of the piston are made.
  • Good sealing of the segments 55 is ensured by providing outside of the piston 38, at the height of each segment 55 a spiral spring 58 which is housed in a circular groove 59 of the piston 38. This spiral spring 58 supports the segments 55 towards the exterior and thus ensures the necessary tightness between the segments and the internal wall of the cylindrical space in which the piston 38 moves.
  • the operation of the installation is as follows:
  • a keg no longer contains any drink for example keg 2. He then presses the corresponding key on the table, for example the key D. By pressing this key the corresponding three-way valve 18 is placed in the position in which the compressor 14 sucks the engine gas through the line 18 and the bypass 21. At this time the line 6 ⁇ is closed. The ensuing lack of pressure in a barrel is signaled by the pressure detector 30. In this phase, the valves 26 and 33 are closed and the compressor 14 is stopped. A new keg containing the drink to be dispensed is then installed. The user must then press the R "reset" button. This means that the barrel receives its pressure directly from the accumulation tank 9, the valves 26 and 33 are closed.
  • the valve 26 When, during the emptying of a barrel, the pressure in the expansion tank has reached the predetermined pressure, i.e. for example a pressure of 6 kg, the valve 26 opens so that the excess gas is pumped out of the barrel to the accumulation tanks 25. When the detector 30 detects zero pressure, the compressor 14 is stopped and the valve 26 is closed. When, conversely, during the flow of drink from barrels 1, 2 or 3, the pressure in the expansion tank falls below a predetermined value, for example under a value of 4 kg, the valve 26 remains closed, the valve 23 opens while the compressor 14 rotates which makes it possible to bring the necessary quantity of engine gas from the accumulation tanks to the expansion tank.
  • a predetermined value for example under a value of 4 kg

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)

Abstract

An installation permitting recovery of a propellant gas used to dispense beverages from several vessels and return of this propellant gas to these vessels, comprising, for each vessel, a first tube (5), (6) or (7) for alternately conveying a gas towards a vessel (1), (2) or (3) from which the beverage is dispensed and, when this vessel no longer contains any liquid, but only gas, sucking this gas via a compressor (14) and directing it towards an expansion vessel (9). <IMAGE>

Description

Cette invention concerne une installation permettant de récupérer un gaz moteur tel que, par exemple, l'acide carbonique ou l'azote, utilisé en vue du débit de boissons, à partir d'un, mais de préférence plusieurs fûts.This invention relates to an installation making it possible to recover a working gas such as, for example, carbonic acid or nitrogen, used for the purpose of dispensing drinks, from one, but preferably several barrels.

L'invention a pour but de prescrire une installation qui fonctionne entièrement automatiquement et qui peut être commandée à partir de l'endroit où est débitée la boisson.The object of the invention is to prescribe an installation which operates entirely automatically and which can be controlled from the place where the drink is dispensed.

Afin de réaliser ceci conformément à l'invention, l'installation comporte, pour chaque fût, une première conduite pour amener alternativement un gaz vers un fût d'où du liquide est prélevé et, lorsque celui-ci ne contient plus de liquide mais uniquement du gaz, pour aspirer ce gaz à l'aide d'un compresseur et l'évacuer vers un réservoir d'expansion qui peut refouler le gaz stocké par des conduites d'amenée vers lesdits fûts, lesdites conduits d'amenée étant branchées sur des vannes électromagnétiques à trois voies au delà desquelles le gaz peut s'écouler vers un des fûts considérés ou être aspiré hors de ceux-ci par le compresseur précité.In order to achieve this in accordance with the invention, the installation comprises, for each barrel, a first pipe for alternately supplying a gas to a barrel from which liquid is withdrawn and, when the latter no longer contains liquid but only gas, to suck this gas using a compressor and evacuate it to an expansion tank which can discharge the gas stored by supply lines to said drums, said supply pipes being connected to three-way electromagnetic valves beyond which the gas can flow to one of the drums considered or be sucked out of them by the aforementioned compressor.

Toujours selon l'invention, les vannes électromagnétiques à trois voies précitées sont reliées à une conduite commune qui conduit, via une dérivation, au compresseur précité, ledit compresseur étant, en aval de celui-ci, relié par une conduite à au moins un réservoir d'accumulation.Still according to the invention, the aforementioned three-way electromagnetic valves are connected to a common pipe which leads, via a bypass, to the aforementioned compressor, said compressor being, downstream thereof, connected by a pipe to at least one tank accumulation.

L'invention se rapporte également au compresseur de conception originale, fonctionnant sans lubrifiant, qui trouve applica­tion dans l'installation selon l'invention.The invention also relates to the compressor of original design, operating without lubricant, which finds application in the installation according to the invention.

D'autres détails et avantages de l'invention ressortiront de la description d'une installation permettant de récupérer un gaz moteur et du compresseur utilisé à cet effet, selon l'invention.Other details and advantages of the invention will emerge from the description of an installation making it possible to recover an engine gas and the compressor used for this purpose, according to the invention.

Cette description n'est donnée qu'à titre d'exemple et ne limite pas l'invention. Les notations de références se rapportent aux figures ci-jointes.

  • La figure 1 représente un schéma de l'installation commandée électroniquement.
  • La figure 2 est une coupe longitudinale du compresseur selon l'invention.
  • La figure 3 est une coupe, à une échelle plus grande, selon la ligne III-III de la figure 2.
This description is given by way of example only and does not limit the invention. Reference notations refer to to the attached figures.
  • Figure 1 shows a diagram of the electronically controlled installation.
  • Figure 2 is a longitudinal section of the compressor according to the invention.
  • Figure 3 is a section, on a larger scale, along the line III-III of Figure 2.

L'installation représentée schématiquement par la figure 1 est conçue en vue de récupérer un gaz moteur tel que l'acide carbonique ou l'azote à partir de fûts 1, 2 et 3, lorsqu'ils ne contiennent plus aucune boisson et en vue de conduire du gaz vers des fûts lorsque ceux-ci doivent débiter une boisson. Les conduites de débit, partielle­ment visibles portent la référence 4.The installation shown schematically in Figure 1 is designed to recover a driving gas such as carbonic acid or nitrogen from drums 1, 2 and 3, when they no longer contain any drink and in order to lead gas to barrels when they are to dispense a drink. The flow lines, partially visible, have the reference 4.

Les conduites 5ʹ, 6ʹ et 7ʹ pour le gaz moteur sont dérivées d'une conduite principale 8. Sur cette conduite principale 8 sont montées, en aval du réservoir d'expansion 9, un ensemble 10-11 constitué par une soupape d'évacuation de liquide, un filtre à charbon actif et un filtre bactériologique.The pipes 5ʹ, 6ʹ and 7ʹ for the engine gas are derived from a main pipe 8. On this main pipe 8 are mounted, downstream of the expansion tank 9, an assembly 10-11 constituted by a discharge valve of liquid, an activated carbon filter and a bacteriological filter.

Le réservoir d'expansion 9 est, de façon conventionnelle, équipé d'une soupape de sécurité 12 et, sur la conduite 13 qui mène au compreseur 14 est installée une soupape de non-retour 15.The expansion tank 9 is, conventionally, fitted with a safety valve 12 and, on the line 13 which leads to the compressor 14, a non-return valve 15 is installed.

Les fûts 1, 2 et 3 sont également mis en communica­tion avec le compresseur 14 à l'aide d'une conduite 16. Chacune des conduites 5, 6 et 7 peut en effet être mise en communication avec cette conduite 16 à l'intervention des vannes électomagnétiques à trois voies 17, 18 et 19. Une première dérivation 20, relie la conduite 16 au compresseur 14. Une seconde dérivation, 21, mène à une conduite 22 et s'étend entre le serpentin 23, branché dans la conduite 13 et une bouteille à gaz 24. Il apparaît immédiatement que les conduites d'amenée 5ʹ, 6ʹ et 7ʹ transforment, au delà des vannes à trois voies 17, 18 et 19 ce qui est appelé des premières conduites 5, 6 et 7 qui font office, aussi bien en vue de récupérer le gaz moteur que pour l'amenée de celui-ci vers de nouveaux fûts dont devra être prélevée de la boisson.The drums 1, 2 and 3 are also put in communication with the compressor 14 using a pipe 16. Each of the pipes 5, 6 and 7 can indeed be put in communication with this pipe 16 by the intervention of the three-way electromagnetic valves 17, 18 and 19. A first branch 20, connects line 16 to the compressor 14. A second branch, 21, leads to a line 22 and extends between the coil 23, connected in line 13 and a gas cylinder 24. It immediately appears that the supply lines 5ʹ, 6ʹ and 7ʹ transform, beyond the three-way valves 17, 18 and 19 what is called the first lines 5, 6 and 7 which act, both in order to recover the engine gas as well as for bringing it to new barrels from which the drink will have to be taken.

Sur la conduite 22 sont montés des réservoirs de récupération 25. Sur la même conduite 22 sont montés les uns après les autres : une vanne 26, disposée entre le compresseur 14 et la dérivation 21; un détecteur de pression 27; une soupape de sécurité 28 et, immédiatement en aval de la bouteille de gaz 24, un détendeur 29.On the pipe 22 are mounted recovery tanks 25. On the same pipe 22 are mounted one after the other the others: a valve 26, disposed between the compressor 14 and the bypass 21; a pressure detector 27; a safety valve 28 and, immediately downstream from the gas cylinder 24, a pressure regulator 29.

Enfin, sont montés sur la conduite 16 un détecteur de pression 30 et un filtre d'évacuation du liquide 31 et, en aval de ce dernier une soupape de non-retour 32. Au delà de la dérivation 20 est montée sur la dérivation 21 une vanne électomagnétique 33.Finally, are mounted on the pipe 16 a pressure detector 30 and a liquid discharge filter 31 and, downstream of the latter a non-return valve 32. Beyond the bypass 20 is mounted on the bypass 21 a electromagnetic valve 33.

La référence 34 représente un détecteur de pression dont est équipé le réservoir d'expansion 9. Le mini-ordinateur de l'instal­lation est représenté par la référence générale 35 et le tableau de contrôle avec la référence 36.The reference 34 represents a pressure detector with which the expansion tank is equipped 9. The mini-computer of the installation is represented by the general reference 35 and the control panel with the reference 36.

Le compresseur 14 forme un élément essentiel de l'installation et est conçu pour ne nécessiter aucun lubrifiant, ce qui rend sa structure particulièrement originale.The compressor 14 forms an essential element of the installation and is designed to require no lubricant, which makes its structure particularly original.

Le compresseur consiste en une carter 37 présentant une cavité cylindrique pour un double piston 38 qui est animé d'un mouvement de va-et-vient à l'intérieur de la cavité cylindrique du carter. Ce mouvement de va-et-vient est provoqué par une molette d'entraînement 40 montée de façon excentrique par rapport à l'axe d'entraînement 39. Cette molette est montée librement sur l'axe 41 fixée sur le disque 42 monté sur l'axe d'entraînement 39. Le disque 42 est logé dans une cavité cylindrique 43 qui se trouve en communication avec l'espace cylindrique dans lequel se déplace le piston 38. L'étanchéïté entre ledit espace et l'extérieur est assurée grâce à la présence de la rondelle d'étanchéïté 44 qui prend appui par son rebord replié sur l'axe d'entraînement 39. Dans l'espace 43 débouche la conduite d'aspiration 45 destinée au gaz moteur. Un bon refroidis­sement des éléments qui constituent le piston 38 est ainsi assuré.The compressor consists of a casing 37 having a cylindrical cavity for a double piston 38 which is driven back and forth within the cylindrical cavity of the casing. This back-and-forth movement is caused by a drive wheel 40 mounted eccentrically relative to the drive axis 39. This wheel is freely mounted on the axis 41 fixed on the disc 42 mounted on the drive axis 39. The disc 42 is housed in a cylindrical cavity 43 which is in communication with the cylindrical space in which the piston 38 moves. The seal between said space and the outside is ensured by virtue of the presence of the sealing washer 44 which is supported by its folded rim on the drive shaft 39. In the space 43 opens the suction pipe 45 for the engine gas. Good cooling of the elements which constitute the piston 38 is thus ensured.

Les soupapes de sortie et les conduites de sortie sont ménagées aux deux extrémités 46 et 47 disposées à l'opposé l'une de l'autre dans le carter du compresseur. Les soupapes d'entrée sont désignées par 48 et 49, les soupapes de sortie portent les références 50 et 51. Les conduites de sortie portent les références 52 et 52ʹ. Dans la paroi du carter 37 sont prévus des passages 53 et 53ʹ pour permettre la circulation du gaz moteur en direction des soupapes d'entrée 48 et 49.The outlet valves and the outlet pipes are provided at the two ends 46 and 47 arranged opposite one another in the compressor casing. The inlet valves are designated by 48 and 49, the outlet valves bear the references 50 and 51. The outlet pipes bear the references 52 and 52ʹ. In the wall of the housing 37 are provided passages 53 and 53ʹ to allow the circulation of the engine gas in the direction of the valves entry 48 and 49.

Cette circulation du gaz n'est possible que grâce à la structure originale du piston 38 qui est constitué de deux éléments de piston identiques 54 équipés de segments 55. Entre les éléments de piston 54, qui sont constitués d'un métal léger tel que l'aluminium ou un alliage d'aluminium, se trouve une pièce formant entretoise 56 dans l'axe géométrique des éléments de piston 54 ainsi que de la pièce cylindrique formant entretoise 56 se trouve une tige filetée qui assure la liaison entre les éléments de piston 54 et la pièce d'entre­toise 56 également le blocage des disques métalliques 57. Ces disques sont prévus pour garantir ces éléments de piston contre l'usure. L'espace entre les disques 57 et la molette d'entraînement 40 doit être choisi de telle sorte que la rotation qui est provoquée par la friction entre la molette d'entraînement 40 et les disques 57 peut se poursuivre sans difficulté mais également sans choc, dans les deux directions.This gas circulation is only possible thanks to the original structure of the piston 38 which consists of two identical piston elements 54 equipped with segments 55. Between the piston elements 54, which are made of a light metal such as l aluminum or an aluminum alloy, there is a piece forming a spacer 56 in the geometric axis of the piston elements 54 as well as a cylindrical piece forming a spacer 56 is a threaded rod which provides the connection between the piston elements 54 and the spacer 56 also blocking the metal discs 57. These discs are provided to guarantee these piston elements against wear. The space between the discs 57 and the drive wheel 40 must be chosen so that the rotation which is caused by the friction between the drive wheel 40 and the discs 57 can continue without difficulty but also without shock, in both directions.

En réalité chacun des éléments de piston 54 consitent en deux parties. La partie de piston proprement dite 54 réalisée en une matière synthétique telle que celle qui est connue dans le commerce sous le nom de "Rulon" et les éléments 54ʹ réalisés en métal léger.In reality, each of the piston elements 54 consists of two parts. The actual piston portion 54 made of a synthetic material such as that which is known in the trade under the name of "Rulon" and the elements 54ʹ made of light metal.

Le compresseur selon l'invention est, ainsi qu'il résulte de la description qui vient d'en être donnée, étanche au gaz, ne nécessi­te aucune lubrication, ce qui est un élément essentiel. Qu'aucune lubrification n'est nécessaire, résulte du choix correct de l'entrée de la conduite d'aspiration 45 pour le gaz moteur qui refroidit immédia­tement les parties qui dans le cas contraire s'échaufferaient et, d'autre part, au choix des matériaux dont les éléments du piston sont constitués. Une bonne étanchéïté des segments 55 est assurée en prévoyant à l'extérieur du piston 38, à hauteur de chaque segment 55 un ressort spiralé 58 qui est logé dans une rainure circulaire 59 du piston 38. Ce ressort spiralé 58 appuye les segments 55 vers l'extérieur et assure ainsi l'étancéïté nécessaire entre les segments et la paroi interne de l'espace cylindrique dans lequel se déplace le piston 38. Le fonction­nement de l'installation est le suivant :The compressor according to the invention is, as follows from the description which has just been given, gas-tight, requires no lubrication, which is an essential element. That no lubrication is necessary, results from the correct choice of the inlet of the suction line 45 for the engine gas which immediately cools the parts which otherwise would heat up and, on the other hand, as desired materials of which the elements of the piston are made. Good sealing of the segments 55 is ensured by providing outside of the piston 38, at the height of each segment 55 a spiral spring 58 which is housed in a circular groove 59 of the piston 38. This spiral spring 58 supports the segments 55 towards the exterior and thus ensures the necessary tightness between the segments and the internal wall of the cylindrical space in which the piston 38 moves. The operation of the installation is as follows:

En premier lieu il faut remarquer que toute l'installa­ tion tend à réaliser une automatisation poussée et que l'intervention d'un utilisateur, c'est-à-dire la personne qui débite la boisson, se limite à l'actionnement d'une des touches C, D, F ou de la touche R "reset" sur le tableau de bord 36.First of all, it should be noted that the whole installation tion tends to achieve extensive automation and that the intervention of a user, that is to say the person who dispenses the drink, is limited to the actuation of one of the keys C, D, F or the R button "reset" on the dashboard 36.

L'utilisateur constate qu'un fût ne contient plus de boisson, par exemple le fût 2. Il enfonce alors sur le tableau la touche correspondante, par exemple la touche D. En enfonçant cette touche la vanne à trois voies correspondante 18 vient se placer dans la position dans laquelle le compresseur 14 aspire le gaz moteur par la conduite 18 et la dérivation 21. A ce moment la conduit 6ʹ est fermée. Le manque de pression qui s'ensuit dans un fût est signalé par le détecteur de pression 30. Dans cette phase, les soupapes 26 et 33 sont fermées et le compresseur 14 est mis à l'arrêt. Un nouveau fût contenant de la boisson à distribuer est alors installé. L'utilisateur doit alors enfoncer le bouton R "reset". Ceci signifie que le fût reçoit directement sa pression du réservoir d'accumulation 9 les soupapes 26 et 33 sont fermées.The user finds that a keg no longer contains any drink, for example keg 2. He then presses the corresponding key on the table, for example the key D. By pressing this key the corresponding three-way valve 18 is placed in the position in which the compressor 14 sucks the engine gas through the line 18 and the bypass 21. At this time the line 6ʹ is closed. The ensuing lack of pressure in a barrel is signaled by the pressure detector 30. In this phase, the valves 26 and 33 are closed and the compressor 14 is stopped. A new keg containing the drink to be dispensed is then installed. The user must then press the R "reset" button. This means that the barrel receives its pressure directly from the accumulation tank 9, the valves 26 and 33 are closed.

Lorsque, lors de la vidange d'un fût, la pression dans le réservoir d'expansion a atteint la pression prédéterminée, c'est-à-dire par exemple une pression de 6 kg, la soupape 26 s'ouvre de telle sorte que le gaz en excès est pompé hors du fût vers les réservoirs d'accumu­lation 25. Lorsque le détecteur 30 détecte une pression nulle, le compres­seur 14 est mis à l'arrêt et la soupape 26 est fermée. Lorsque, inversé­ment, lors du débit de boisson à partir des fûts 1, 2 ou 3, la pression dans le réservoir d'expansion tombe sous une valeur prédéterminée, par exemple sous une valeur de 4 kg, la soupape 26 demeure fermée, la soupape 23 s'ouvre tandis que le compresseur 14 tourne ce qui permet d'amener la quantité nécessaire de gaz moteur à partir des réservoirs d'accumulation vers le réservoir d'expansion.When, during the emptying of a barrel, the pressure in the expansion tank has reached the predetermined pressure, i.e. for example a pressure of 6 kg, the valve 26 opens so that the excess gas is pumped out of the barrel to the accumulation tanks 25. When the detector 30 detects zero pressure, the compressor 14 is stopped and the valve 26 is closed. When, conversely, during the flow of drink from barrels 1, 2 or 3, the pressure in the expansion tank falls below a predetermined value, for example under a value of 4 kg, the valve 26 remains closed, the valve 23 opens while the compressor 14 rotates which makes it possible to bring the necessary quantity of engine gas from the accumulation tanks to the expansion tank.

Lorsque le débit de boisson est arrêté pour une période plus longue, l'exploitant enfoncera les touches C, D, F de telle sorte que la gaz moteur doit être aspiré hors des fûts selon les schémas exposés ci-dessus. La remise en marche de l'installation est réalisée par l'enfoncement de la touche R "reset".When the flow of drink is stopped for a longer period, the operator will press the keys C, D, F so that the engine gas must be sucked out of the barrels according to the diagrams exposed above. The system is restarted by pressing the R "reset" key.

Claims (14)

1. Installation permettant de récupérer un gaz moteur tel que par exemple de l'acide carbonique ou de l'azote utilisé en vue du débit de boissons, à partir d'un, mais de préférence plusieurs fûts, et de retourner ce gaz vers ces fûts, caractérisée en ce qu'elle comporte, pour chaque fût, une première conduite (5), (6) ou (7) pour amener alternativement du gaz vers un fût (1), (2) ou (3) d'où du liquide est prélevé et, lorsque celui-ci ne contient plus de liquide mais unique­ment du gaz, pour aspirer ce gaz à l'aide d'un compresseur (14) et l'évacuer vers un réservoir d'expansion (9) qui peut refouler le gaz stocké par des conduites d'amenée (5,5ʹ), (6,6ʹ), (7,7ʹ) vers lesdits fûts, les dites conduites d'amenée étant branchées sur des vannes électromagnétiques à trois voies (17), (18), (19) au delà desquelles le gaz peut soit s'écouler par une des premières conduites (5), (6) ou (7), vers les fûts considérés (1), (2) ou (3), soit être aspiré par le compresseur (14) hors de ces fûts.1. Installation making it possible to recover a working gas such as, for example, carbonic acid or nitrogen used for the flow of drinks, from one, but preferably several barrels, and to return this gas to these barrels, characterized in that it comprises, for each barrel, a first pipe (5), (6) or (7) for alternately supplying gas to a barrel (1), (2) or (3) from where liquid is withdrawn and, when it no longer contains liquid but only gas, to suck this gas using a compressor (14) and evacuate it to an expansion tank (9) which can discharge the gas stored by supply lines (5.5ʹ), (6.6ʹ), (7.7ʹ) to said barrels, said supply lines being connected to three-way electromagnetic valves (17), (18), (19) beyond which the gas can either flow through one of the first pipes (5), (6) or (7), to the drums considered (1), (2) or (3), either be sucked by the compressor (14) out of these drums. 2. Installation selon la revendication 1, caractérisée en ce que les vannes électomagnétiques à trois voies précitées (17), (18) et (19) sont reliées par une conduite commune (16), qui conduit, via une dérivation (20), au compresseur précité (14), ledit compresseur étant, en aval de celui-ci, relié par une conduite (22) à au moins un réservoir d'accumulation (25).2. Installation according to claim 1, characterized in that the aforementioned three-way electromagnetic valves (17), (18) and (19) are connected by a common pipe (16), which leads, via a bypass (20), the aforementioned compressor (14), said compressor being, downstream thereof, connected by a line (22) to at least one accumulation tank (25). 3. Installation selon la revendication 2, caractérisée en ce qu'une bouteille à gaz (24) est montée sur ladite conduite (22), en amont du réservoir d'accumulation (25).3. Installation according to claim 2, characterized in that a gas cylinder (24) is mounted on said pipe (22), upstream of the accumulation tank (25). 4. Installation selon l'une quelconque des revendications 2 et 3, caractérisée en ce que sur la conduite précitée (22) est montée une vanne électromagnétique (26) et en ce qu'il est prévu, entre cette vanne (26) et le réservoir d'accumulation précité (25) une dérivation (21) qui conduit, via une vanne électromagnétique (33) vers la dérivation (20) et le compresseur (14).4. Installation according to any one of claims 2 and 3, characterized in that on the aforementioned pipe (22) is mounted an electromagnetic valve (26) and in that it is provided, between this valve (26) and the aforementioned accumulation tank (25) a bypass (21) which leads, via an electromagnetic valve (33) to the bypass (20) and the compressor (14). 5. Installation selon l'une quelconque des revendications 1 à 4, caractérisée en ce que les vanne électromagnétiques précitées (17), (18) et (19), ainsi que les vannes électromagnétiques (26) et (33) sont commandées à partir d'un mini-ordinateur appartenant à l'installa­ tion et en ce que ledit mini-ordinateur reçoit des signaux et les trans­forme, signaux qui sont émis, entre autres, par des détecteurs de pression qui sont influencés par le niveau de pression dans les fûts précités (1), (2) et (3), le réservoir d'expansion (9), et le réservoir d'accumulation (25).5. Installation according to any one of claims 1 to 4, characterized in that the aforementioned electromagnetic valves (17), (18) and (19), as well as the electromagnetic valves (26) and (33) are controlled from of a mini-computer belonging to the installa tion and in that said minicomputer receives signals and transforms them, signals which are emitted, inter alia, by pressure detectors which are influenced by the pressure level in the abovementioned drums (1), (2) and ( 3), the expansion tank (9), and the accumulation tank (25). 6. Installation selon l'une des revendications 1 à 7, caractérisée en ce que le compresseur précité (14) destiné à la mise en circulation du gaz consiste en un carter (37) présentant un espace cylindrique pour un double piston (38) qui est entraîné par une molette d'entraînement (40) disposée latéralement dans le piston (30) et qui est montée librement et de manière excentrique sur un disque rotatif (42) dans une cavité (43) appartenant au carter (37).6. Installation according to one of claims 1 to 7, characterized in that the aforementioned compressor (14) intended for the circulation of gas consists of a casing (37) having a cylindrical space for a double piston (38) which is driven by a drive wheel (40) disposed laterally in the piston (30) and which is mounted freely and eccentrically on a rotating disc (42) in a cavity (43) belonging to the housing (37). 7. Installation selon la revendication 6 caractérisée en ce que le piston précité 38 est réalisé dans une exécution double et en ce que la molette d'entraînement (40) s'adapte latéralement dans le piston (38) dans une cavité entre deux éléments de ce piston et en ce qu'à chaque extrémité du carter (37) sont prévues des soupapes d'entrée et de sortie (48), (49), (50), (51).7. Installation according to claim 6 characterized in that the aforementioned piston 38 is produced in a double execution and in that the drive wheel (40) fits laterally in the piston (38) in a cavity between two elements of this piston and in that at each end of the casing (37) are provided inlet and outlet valves (48), (49), (50), (51). 8. Installation selon les revendications 6 et 7, caracté­risée en ce qu'une conduite d'aspiration (45) destinée à la circulation du gaz débouche dans l'espace précité à proximité du disque précité (42).8. Installation according to claims 6 and 7, characterized in that a suction pipe (45) for the circulation of gas opens into the aforementioned space near the aforementioned disc (42). 9. Installation selon l'une des revendications 6 à 8, caractérisé en ce que le piston précité (38) est réalisé en une matière synthétique.9. Installation according to one of claims 6 to 8, characterized in that the aforementioned piston (38) is made of a synthetic material. 10. Installation 6 à 9, caractérisée en ce que l'espace cylindrique dans lequel se déplace le piston (38) est tapissé intérieu­rement d'une matière telle que le polytétrafluoréthylène.10. Installation 6 to 9, characterized in that the cylindrical space in which the piston (38) moves is lined internally with a material such as polytetrafluoroethylene. 11. Installation selon l'une des revendications 6 à 10, caractérisée en ce que le piston précité (38) est équipé de seg­ments (55) réalisés en une matière appartenant au groupe du polytétra­fluoréthylène.11. Installation according to one of claims 6 to 10, characterized in that the aforementioned piston (38) is equipped with segments (55) made of a material belonging to the group of polytetrafluoroethylene. 12. Installation selon l'une des revendications 6 à 11, caractérisée en ce que le piston précité (28) consiste en éléments qui sont fixés les uns aux autres par une tige filetée extérieurement et qui s'étend selon l'axe géométrique de ces éléments.12. Installation according to one of claims 6 to 11, characterized in that the aforementioned piston (28) consists of elements which are fixed to each other by an externally threaded rod and which extends along the geometric axis of these elements. 13. Installation selon l'une des revendications 6 à 12, caractérisée en ce que les soupapes d'entrée précitées (48), (49) sont mises en communication avec l'espace (43) dans lequel le disque (42) est mis en rotation et cela grâce à des conduites (53) s'étendant latéralement dans le carter (37) du compresseur.13. Installation according to one of claims 6 to 12, characterized in that the aforementioned inlet valves (48), (49) are placed in communication with the space (43) in which the disc (42) is placed in rotation and this thanks to pipes (53) extending laterally in the casing (37) of the compressor. 14. Installation selon l'une des revendications 11-12, caractérisée en ce que les segments précités (55) sont soumis intérieu­rement à la pression d'un ressort spiralé (58) disposé autour de l'élément de piston considéré.14. Installation according to one of claims 11-12, characterized in that the aforementioned segments (55) are internally subjected to the pressure of a spiral spring (58) disposed around the piston element considered.
EP87870189A 1986-12-23 1987-12-18 Installation for the recovery of a propellant gas and compressor used therefor Withdrawn EP0274370A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE217598 1986-12-23
BE0/217598A BE906032A (en) 1986-12-23 1986-12-23 Apparatus for recovering a propellant and compressor used therewith.

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EP0274370A1 true EP0274370A1 (en) 1988-07-13

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995012543A1 (en) * 1993-11-04 1995-05-11 Geoffrey Miles Furness Gas pressurized liquid delivery system
US6354341B1 (en) 1999-11-10 2002-03-12 Shurflo Pump Manufacturing Co., Inc. Rapid comestible fluid dispensing apparatus and method
US6360556B1 (en) 1999-11-10 2002-03-26 Shurflo Pump Manufacturing Company, Inc. Apparatus and method for controlling fluid delivery temperature in a dispensing apparatus
US6443335B1 (en) 1999-11-10 2002-09-03 Shurflo Pump Manufacturing Company, Inc. Rapid comestible fluid dispensing apparatus and method employing a diffuser
US6449970B1 (en) 1999-11-10 2002-09-17 Shurflo Pump Manufacturing Company, Inc. Refrigeration apparatus and method for a fluid dispensing device
GB2454904A (en) * 2007-11-22 2009-05-27 Tom Oswald Carbon dioxide recovery beer dispensing system
GB2518693A (en) * 2013-09-25 2015-04-01 David Catton Excalibur gas recycling system

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DE388307C (en) * 1924-01-11 Herbert Erler Dispensing equipment
US2149633A (en) * 1936-03-30 1939-03-07 Raymond D Schnoor Draft apparatus
DE1187196B (en) * 1961-08-31 1965-02-11 Heinz Riedle Method and device for storing and conveying easily decomposable mineral spring water
FR2199747A5 (en) * 1972-09-20 1974-04-12 Demolon Jean Fr Ncois
BE904292A (en) * 1986-02-26 1986-06-16 Heylen Carlo Carbon di:oxide recovery system - pumps gas from emptied barrels into storage vessel for reuse

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BE479876A (en) *
BE386928A (en) *
NL32388C (en) * 1900-01-01
DE388307C (en) * 1924-01-11 Herbert Erler Dispensing equipment
US2149633A (en) * 1936-03-30 1939-03-07 Raymond D Schnoor Draft apparatus
DE1187196B (en) * 1961-08-31 1965-02-11 Heinz Riedle Method and device for storing and conveying easily decomposable mineral spring water
FR2199747A5 (en) * 1972-09-20 1974-04-12 Demolon Jean Fr Ncois
BE904292A (en) * 1986-02-26 1986-06-16 Heylen Carlo Carbon di:oxide recovery system - pumps gas from emptied barrels into storage vessel for reuse

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995012543A1 (en) * 1993-11-04 1995-05-11 Geoffrey Miles Furness Gas pressurized liquid delivery system
US6354341B1 (en) 1999-11-10 2002-03-12 Shurflo Pump Manufacturing Co., Inc. Rapid comestible fluid dispensing apparatus and method
US6360556B1 (en) 1999-11-10 2002-03-26 Shurflo Pump Manufacturing Company, Inc. Apparatus and method for controlling fluid delivery temperature in a dispensing apparatus
US6443335B1 (en) 1999-11-10 2002-09-03 Shurflo Pump Manufacturing Company, Inc. Rapid comestible fluid dispensing apparatus and method employing a diffuser
US6449970B1 (en) 1999-11-10 2002-09-17 Shurflo Pump Manufacturing Company, Inc. Refrigeration apparatus and method for a fluid dispensing device
US6695168B2 (en) 1999-11-10 2004-02-24 Shurflo Pump Mfg. Co., Inc. Comestible fluid dispensing apparatus and method
GB2454904A (en) * 2007-11-22 2009-05-27 Tom Oswald Carbon dioxide recovery beer dispensing system
GB2518693A (en) * 2013-09-25 2015-04-01 David Catton Excalibur gas recycling system
GB2518693B (en) * 2013-09-25 2021-12-15 Catton David A gas recycling method

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