EP2730536B1 - Agencement de soutirage avec soupape d'échappement - Google Patents

Agencement de soutirage avec soupape d'échappement Download PDF

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Publication number
EP2730536B1
EP2730536B1 EP13190601.8A EP13190601A EP2730536B1 EP 2730536 B1 EP2730536 B1 EP 2730536B1 EP 13190601 A EP13190601 A EP 13190601A EP 2730536 B1 EP2730536 B1 EP 2730536B1
Authority
EP
European Patent Office
Prior art keywords
shut
pressure
arrangement according
pressure side
gas
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.)
Not-in-force
Application number
EP13190601.8A
Other languages
German (de)
English (en)
Other versions
EP2730536A2 (fr
EP2730536A3 (fr
Inventor
Harald Steinmetz
Mirco Wolter
Alexander Wilhelm
Alexander Warkentin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DSI Getraenkearmaturen GmbH
Original Assignee
DSI Getraenkearmaturen GmbH
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Filing date
Publication date
Application filed by DSI Getraenkearmaturen GmbH filed Critical DSI Getraenkearmaturen GmbH
Publication of EP2730536A2 publication Critical patent/EP2730536A2/fr
Publication of EP2730536A3 publication Critical patent/EP2730536A3/fr
Application granted granted Critical
Publication of EP2730536B1 publication Critical patent/EP2730536B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • B67D1/0406—Apparatus utilising compressed air or other gas acting directly or indirectly on beverages in storage containers with means for carbonating the beverage, or for maintaining its carbonation
    • 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
    • B67D1/08—Details
    • B67D1/0829—Keg connection means
    • B67D1/0831—Keg connection means combined with valves
    • 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
    • B67D1/08—Details
    • B67D1/0829—Keg connection means
    • B67D1/0841—Details
    • B67D1/0845—Security means
    • 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
    • B67D1/08—Details
    • B67D1/0872—Aesthetics, advertising
    • B67D1/0877—Advertising means
    • 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
    • B67D2001/0095—Constructional details
    • B67D2001/0096—Means for pressurizing liquid
    • B67D2001/0098—Means for pressurizing liquid using a gas

Definitions

  • the present invention relates to an arrangement for dispensing drinks comprising a discharge valve for use in a span gas line for a dispensing head on a beverage dispenser according to the features in the preamble of claim 1.
  • the present invention further relates to a method for operating a device for dispensing drinks according to the features of claim 24.
  • a propellant gas which is also known as span gas, here from an external source
  • the clamping gas is supplied and is fed via a feed line from the tap head into the barrel itself, which acts in the barrel located beverage with a pressure, so that Drink itself is conveyed via a second located in the dispensing head line to the dispensing system when opening the tap.
  • the clamping gas thus has on the one hand the purpose of expelling the beverage from the barrel, whereby in the barrel, such an overpressure is generated, which pushes the content, thus the drink, when opening the tap through a pipe inside the barrel.
  • a second effect of the clamping gas is that the carbonic acid in the beverage does not dissolve out of the beverage in such a way that the residual content in the drum becomes stale.
  • the object of the present invention is, starting from the prior art, to provide a device which makes it possible to provide a safety feature against tapped beverages against accidental leakage of the clamping gas, the device provides easy operation, cost-effective production and optionally a simple retrofitting option ,
  • the present invention further relates to a method for operating an arrangement for dispensing drinks according to the features in claim 24.
  • the arrangement comprises an outflow valve for use in a span gas line for a dispensing head on beverage dispensers, in particular on or in a dispensing head for coupling with a drum, the outflow valve having a valve body having a high pressure side and a low pressure side, the high pressure side and the low pressure side gas conducting are integrated with each other under inclusion of a movable shut-off body via a gas line.
  • the discharge valve is characterized in that the shut-off is transferred by an initial operation from a shut-off to a monitoring position and the high pressure side and the low pressure side are gas-conductively connected to each other, wherein the voltage applied to the high pressure side clamping gas pressure holds the shut-off in the monitoring position and in the low pressure region Operating pressure is applied, so that moves in a shutdown of the operating pressure of the shut-off in the shut-off position.
  • the Monitoring position is thus on the high pressure side and the low pressure side of the same pressure fitting, which is the clamping gas pressure.
  • the tap head is in the context of the invention in particular as a single external component to be considered such that it is connected to the beverage dispenser and with the Spanngasvorrats employnis via lines and can be placed on a barrel.
  • the tap head itself can be formed in the context of the invention as a flat tap head, Kombizapfkopf and / or Korbzapfkopf or the like.
  • CO 2 carbon dioxide
  • any other gaseous fluid is also used as a clamping gas, especially if it is food compatible.
  • nitrogen (N2) or else a mixture of nitrogen and carbon dioxide and also other mixed gases as clamping gases.
  • an outflow valve can be inserted at a location between the clamping gas storage container and the dispensing head. Consequently, the outflow valve can be used either indirectly or directly on the span gas storage container, in particular behind the pressure reducer or else in the line between the span gas storage tank and the tap head or else on or in the tap head. As a particularly preferred embodiment variant, the outflow valve can be screwed or screwed on, in particular, directly to the dispensing head. This makes it possible that already existing dispensing heads are retrofitted with the outflow valve according to the invention in a simple manner and already meet high security requirements by this structural measure.
  • the outflow valve also as an inlay in the tap head to plug in and gas-tight by screwing on or screwing the span gas line with the tap head.
  • This also makes it possible not only to equip new dispensing heads with the outflow valve according to the invention, but also to retrofit already existing dispensing heads with the outflow valve in a particularly simple manner.
  • the discharge valve has a valve body which has a high-pressure side and a low-pressure side.
  • the high-pressure side is the side which is oriented in the direction of the span gas storage container, thus the side against which the clamping gas pressure is applied when the clamping gas reservoir is opened.
  • the valve body further has a low pressure side, wherein the low pressure side is oriented towards the tap head.
  • the high-pressure side and the low-pressure side are fluid-conductively, in particular gas-conducting, coupled to one another via a line.
  • the clamping gas pressure at the high pressure side of the outflow valve it is prevented by the existing in the discharge valve shut-off that the clamping gas flows through the valve body to the low pressure side.
  • the shut-off valve is actuated by an initial operation, then the shut-off body is transferred to a monitoring position.
  • the high pressure side and the low pressure side are gas-conductively connected to each other via the gas line.
  • the clamping gas applied to the high pressure side thus flows through the gas line and the clamping gas pressure spreads on the low pressure side and thus is on the low pressure side, so that the same pressure is applied to the high pressure side and the low pressure side in regular operation.
  • This situation is especially true when the tap head is placed on a barrel and locked on the barrel. As a result, then flows the clamping gas through the outflow valve into the barrel and acts on the lying in the barrel drink with the clamping gas pressure.
  • the span gas is to be understood as a propellant gas.
  • the shut-off body in the outflow valve is held by the clamping gas pressure applied after the initial operation both on the high-pressure side and on the low-pressure side.
  • the tension gas or the clamping gas pressure is thus in the form of an operating pressure on the low pressure side and allows by opening the tap that the drink is passed from the barrel via the tap head to the dispensing system and exits the tap. If, however, it happens that, in the event of incorrect or unintentional opening of the dispensing head without the drum connected, a hose breaks or bursts or the situation that the dispensing head is not properly placed on the drum, thus leading to an unwanted malfunction or incorrect connection drops the operating pressure, thus the clamping gas pressure on the low pressure side.
  • the operating pressure is no longer applied to the shut-off body and can therefore no longer keep it in the monitoring position, which is why the shut-off body moves into the shut-off position.
  • the gas line within the valve body of the outflow valve is closed and it is not possible for the clamping gas, seen in the direction of line, to emerge behind the outflow valve. As a result, it is reduced that the clamping gas unintentionally leaks to the environment.
  • existing physical coupling means are dispensed with in particular for carrying out the initial operation.
  • An essential advantage of the invention is to be considered that the barrel pressure prevailing in the barrel is used to carry out the initial operation. This means that when the tap head is connected to the barrel and the tap head is locked, the barrel pressure in the barrel initiates or carries out the initial operation.
  • the invention thus includes a method for starting up or operating a dispensing system with a dispensing head and a barrel with incorporation of the outflow valve in any form of the variants of the outflow valve mentioned in this application. The method is characterized in particular by the fact that the initial operation for commissioning is carried out as previously shown by the connection of the tap head to the keg.
  • a barrel that is completely filled from the time of delivery from a filling station has an internal pressure, which is the barrel pressure.
  • the tap head is placed on a barrel and connected by pressing the tap head to the barrel, so is at the low pressure side of the tap head at least briefly the keg pressure.
  • the initial operation is carried out such that the shut-off is transferred by the barrel pressure in the monitoring position.
  • the outflow valve according to the invention is suitable for a prestressing gas pressure of 0.01 to 10 bar, very particularly preferably in a range of 0.5 to 7.8 bar and particularly preferably in a range of 0.6 to 3.7 bar. This makes it possible to secure clamping gas for tapping non-alcoholic beverages as well as clamping gas for tapping alcoholic beverages by using the outflow valve according to the invention.
  • a possible functional principle is designed such that the shut-off is unlocked exclusively by the prevailing in the barrel keg pressure and then by the spreading on the low pressure side clamping gas pressure in the Monitoring position is held.
  • a return means very particularly preferably in the form of a return spring is required, which drives the shut-off in case of drop in operating pressure back to the shut-off, in particularenfinnier.
  • the outflow valve is designed such that a shut-off position is taken when the operating pressure, thus the clamping gas pressure on the low pressure side drops to less than 0.5 times the operating pressure.
  • a clamping gas pressure of 3 bar on the high pressure side this is at a befind another on the low pressure side as the operating pressure. Consequently, 3 bar are located on the high pressure side and 3 bar on the low pressure side as well.
  • the operating pressure thus corresponds to the clamping gas pressure.
  • the keg pressure drops at least temporarily. This can be within the scope of the invention by a negligible pressure gradient up to a pressure drop of 0.5 or even 1 bar noticeable, the pressure is then compensated by flowing tension gas again. However, if there is a wrong or unintentional opening of the tap head without a barrel connected or to any other unforeseeable and unwanted event, so that the keg pressure abruptly drops, this is equivalent to a pressure drop of the operating pressure on the low pressure side.
  • the outflow valve is designed such that it at an absolute pressure on the low pressure side of less than 0.5 bar, preferably less than 0.2 bar, thus a compared to the applied clamping gas pressure significantly lower pressure, triggers such that the shut-off moves to the shut-off position.
  • shut-off which is held by a compression spring in the shut-off position, in a design such that the shut-off at less than 0.5 bar occupies the shut-off, the initial operation by applying the outflow valve the low-pressure side with a keg pressure of more than 0.5 bar to move the shut-off in the monitoring position and to hold there. If the pressure now drops to less than 0.5 bar, the shut-off valve returns to the shut-off position.
  • the outflow valve in particular possible to produce the outflow valve according to the invention cost-effectively, since the outflow valve is preferably made of a majority, in the context of the invention, all components are made entirely of a plastic and optionally sealing components of a rubber or elastomeric material.
  • the production in large numbers makes it possible to retrofit the discharge valve on existing dispensing systems or dispensing systems.
  • the discharge valve at almost any point in the region of the span gas supply line.
  • it can be integrated in the line for supplying the clamping gas, in particular in a hose, by a corresponding adapter.
  • it can also be connected directly to a pressure reducer of the clamping gas container.
  • the keg pressure in the drum is applied to the low pressure side of the drain valve.
  • the initial operation is then carried out and high-pressure side and low-pressure side of the clamping gas valve are gas-conductively coupled together to carry out the clamping gas.
  • a check valve is provided in addition to the shut-off body, in particular a double check valve.
  • the non-return valve itself serves in the case of a clamping gas-side pressure drop to ensure that no further barrel pressure and / or a drink located in the barrel flows out in the direction of the high-pressure side.
  • the high pressure side is drink-free, in particular thus kept free of contact with fluid or other organic substances, whereby hygiene requirements are met.
  • the outflow valve has a vent opening, wherein the vent opening is in gas-conducting contact with the environment, in particular the vent opening is provided at an entry space for the shut-off body.
  • the shut-off body it is necessary for a shut-off body, which is transferred by the clamping gas into a monitoring position, that the shut-off body enters a space within the outflow valve. This is the entry area for the shut-off.
  • the shut-off body is mounted in the outflow valve by suitable sealing means such that the retraction space is not subjected to the tensioning gas pressure.
  • the clamping gas pressure in the entry should penetrate example by wear of the sealant or otherwise the clamping gas pressure in the entry or even penetrate, for example, fluid, especially the drink in the entry, so it is possible that through the vent always retraction of the shut-off triggered by the initial process, is ensured in the entry area.
  • the prerequisite for this is that a higher pressure is applied to the low-pressure side of the shut-off body than the pressure in the surroundings. In particular, this corresponds to the atmospheric pressure or the ambient pressure of the space in which the tap head is used.
  • an overpressure is not applied to the entry space, but the atmospheric pressure therein is kept constant by the vent opening.
  • the outflow valve in such a way that it consists of a cylindrical valve body with an outer circumferential surface. Between the outer circumferential surface and a valve seat, a sealant is then incorporated, which is an outer seal which seals the outflow valve from the environment. Most preferably, a groove is provided in the outer circumferential surface, in which an outer seal is formed as an O-ring. In the context of the invention, however, it is also possible to unscrew the outflow valve, for example with a disc seal on a tap head or but to plug into a tap head and then incorporate a disc seal between a protruding collar of the outflow valve and the tap head.
  • an end face of the shut-off body against which the operating pressure is applied is dimensioned such that the force resulting from the end face and operating pressure acting on the shut-off body is greater than the closing force for transferring the shut-off body into the shut-off position.
  • shut-off when the shut-off is held by a spring means, preferably by a compression spring in the shut-off position, then exerts the compression spring in compression, thus upon transfer of the shut-off of the shut-off position to the monitoring position, a pressure force on the shut-off located in the monitoring position.
  • the voltage applied to the end face of the shut-off operating pressure exerts a closing force or spring force counteracting force on the shut-off.
  • this counteracting force must always be greater than the closing force or spring force, which transfers the shut-off in the shut-off position.
  • Another essential to the invention advantage is the fact that between the gas line and the shut-off a sealant, in particular a seal is incorporated, the shut-off comes to the seal in the shut-off position to the plant.
  • the seal bears against the shut-off body with an annular surface in the shut-off position.
  • the outflow valve according to the invention has at least one of the aforementioned features and is further characterized in that the shut-off is designed as a central shut-off piston in the outflow valve, wherein the shut-off piston is in particular designed as a cylindrical body.
  • shut-off piston itself is guided in a shut-off cylinder according to a piston-cylinder principle itself, wherein in the shut-off itself in turn on the opposite side of the low pressure side of Absperrkolbens a spring means, in particular a compression spring is incorporated, which holds the shut-off in the shut-off position.
  • a spring means in particular a compression spring is incorporated, which holds the shut-off in the shut-off position.
  • shut-off piston within the shut-off cylinder performs an axial movement in the direction of the low-pressure side and closes the outflow valve. As a result, it is no longer possible for the tensioning gas to continue to exit on the low-pressure side of the outflow valve.
  • the gas line within the valve body of the outflow valve runs in such a way that it is guided past the outside of the shut-off cylinder, for example in the form of a bore.
  • at least one, in particular a plurality of gas lines are arranged radially encircling the outflow cylinder. In the region of the low-pressure side, the gas lines are then arranged running radially to the center, that by the axial movement of the shut-off piston, the gas line is shut off.
  • the shut-off piston is associated with an additional radial guide, so that the executed axial movement is possible with high precision.
  • an additional guide means is associated with the shut-off piston.
  • this is an additional guide pin which is formed in extension of the central longitudinal axis of the shut-off piston, whereby an axial movement of the shut-off piston is possible with high precision.
  • the shut-off piston has an inconstant cross-section.
  • a fit is formed between the shut-off piston and the shut-off cylinder, so that precise guidance is possible here.
  • an additional seal or a guide means such as a Teflon ring is arranged as a piston ring to the shut-off and this is a maintenance-free guidance with a good sliding property is enabled.
  • At least one radially encircling seal is provided on the shut-off piston, in particular an O-ring, wherein the seal comes into abutment against an inwardly directed constriction of the gas line in the shut-off position.
  • the seal is arranged in the region of the gas line and is approached by the shut-off piston.
  • it is particularly advantageous that the seal is approached exclusively by the shut-off piston and is not run over, so that again the friction is minimized. A pinning or tilting of the outflow valve, which would result in a malfunction, is avoided by this arrangement.
  • the outflow valve is formed as a cylindrical hollow body, wherein in the hollow body, an inner hollow body is arranged, wherein the hollow inner body is radially surrounded by the hollow body, in particular on the outside is included, preferably, a check valve is arranged in the hollow body.
  • a check valve is arranged in the hollow body.
  • the hollow inner body is coupled in a gas-tight manner to the hollow body on the high-pressure side, wherein the gas line of the clamping gas leads from the high-pressure side through the hollow body and at the low-pressure side an outlet opening is formed from the hollow body, which gas-conductively connects the hollow body to the hollow body.
  • the shut-off body is in particular so displaceable between hollow body and hollow body formed that it indirectly and / or directly closes the outlet opening of the inner hollow body in the shut-off and releases in the monitoring position, such that the high-pressure side is gas-conducting with the low pressure side.
  • the outlet opening extends on a central longitudinal axis of the inner hollow body relative to the outside in the radial direction.
  • the shut-off of a compression spring which includes the inner hollow body on the outside held in a shut-off position
  • the shut-off itself by the initial operation opposite to the spring force of the compression spring in the direction to the high pressure side can be transferred. Due to the spreading gas pressure in the gas line, which then rests on the low pressure side as operating pressure, the shut-off is held in the monitoring position. On the low pressure side of the shut-off body thus arises due to the voltage applied to the low-pressure side of the shut-off operating pressure resulting force that holds the shut-off body opposite to the spring force in the monitoring position. If, in turn, the operating pressure drops significantly, this is no longer sufficient to hold the shut-off in the monitoring position, which is why the shut-off is transferred to the shut-off position due to the action of spring force.
  • the shut-off body between an inner circumferential surface of the hollow body and an outer circumferential surface of the hollow body is axially movable, in particular slidably mounted.
  • sealants are incorporated, which then take on a leadership and / or sliding function, on the other hand ensure the seal to reach the shut-off.
  • the moving seals and / or seals that are run over when moving the shut-off, in particular the surfaces of the seals, which then also creates friction should be minimized.
  • shut-off body in this embodiment it is in particular possible to guide the shut-off body in this embodiment also by the sealant itself. Possibly occurring manufacturing tolerances in the production of hollow body and inner hollow body and incorporated between shut-off, in particular annular trained shut-off can then be compensated by the sealant, with an axial mobility without jamming or jamming of the shut-off is still ensured.
  • sealing means themselves are designed as circumferential O-rings.
  • a sliding ring for example, which then ensures a guide with good sliding properties, and thus with low frictional resistance.
  • the outflow valve is formed of a pressure and gas-resistant material, in particular of a food-grade material.
  • the outflow valve may be formed in particular from a metallic material and / or from a light metal material.
  • the outflow valve is formed in particular from a plastic and / or from a fiber composite material.
  • the outflow valve is formed from an injection-molded material.
  • the outflow valve is intended to be designed in such a way that it has as few individual parts as possible, so that it can be produced cost-effectively, for another, it can be mounted inexpensively, and as a result overall the production costs are low.
  • the individual components, in particular plastic components are to be completed in the invention in such a way that they are on the one hand easy, simple and cost-effective composable, on the other hand are not removable. This avoids that the outflow valve manipulation of third parties is accessible.
  • the valve function and thus the safety function ensured without, for example, by removing the shut-off or the like, the valve is manipulated in unlawful ways.
  • valve is repaired improperly and due to the few, especially moving parts and also just because of minimizing the frictional sealing surfaces, the discharge valve is a multi-year intensive, professional use accessible without showing significant signs of wear.
  • FIG. 1 schematically shows an arrangement with tap head 1 for coupling with an indicated barrel 8.
  • the tap head 1 is an inner line 2, through which a fluid not shown in detail from a barrel 8 of a likewise not shown dispensing or dispensing system can be fed.
  • a clamping gas via a gas span line 4, wherein the clamping gas is guided within the tap head 1 via a gas span line 4 in the barrel 8 and thus used as propellant gas for expelling the beverage.
  • the span gas which from a span gas reservoir not shown on the span gas line 4 in the tap head 1 and is then guided into the barrel 8, not at a wrong installation and / or a false or unintentional opening of the tap head without connected barrel 8 uncontrollably exits through the span gas line 4 within the tap head 1 to the environment U, an inventive outflow valve in the span gas line. 4 integrated the tap head 1.
  • the outflow valve 5 connects the clamping gas supply line 3 with the clamping gas line 4.
  • the outflow valve 5 has a high-pressure side 6 and a low-pressure side 7.
  • the clamping gas pressure p S coming from the clamping gas supply line 3, is applied.
  • the outflow valve 5 according to the invention by the initial process thus moved in the variant shown here by placing and connecting the tap head 1 to the barrel 8, so first is the keg pressure p F on the low pressure side 7 of the discharge valve 5 at.
  • the keg pressure p F then moves a check valve 9 present in the discharge valve 5 in the direction of the high pressure side 6 and connects the high pressure side 6 with the low pressure side 7 via a gas line 10 gas-conducting.
  • the tension gas then flows through the gas line 10 to the low pressure side 7 and thus into the barrel 8, then in the barrel 8 of the clamping gas pressure p S is applied and also on the low pressure side 7 of the outflow valve 5, the clamping gas pressure pS is applied.
  • this forms an operating pressure p B , in which state the keg pressure p F , the operating pressure p B and the clamping gas pressure p S are substantially equal.
  • the operating pressure p B is applied to the surface 11 of the check 9 at the low pressure side 7, whereby a resultant force acts on the shut-9. If now the barrel pressure p S and / or the operating pressure p B drops significantly, this would cause the shut-off body 9 to move to a shut-off position and the span gas supplied via the tension gas supply line 3 to a further exit in the direction of the tap head 1 or barrel 8 prevent.
  • FIGS. 2a to e show a first embodiment of the outflow valve 5.
  • the outflow valve 5 has an outer, cylindrical valve body 12, which on its high pressure side 6 an outwardly projecting flange collar thirteenth has.
  • the valve body 12 in a tap head 1 and to couple with this by screwing a line or other connection part.
  • the high-pressure side 6 and the low-pressure side 7 are then connected to each other via a gas line 10, wherein, as shown in FIG. 2a
  • the shut-off 9 in the form of a shut-off piston 14 with a circumferential seal 15, the gas line 10 from high pressure side 6 to low pressure side 7 seals. Consequently, it is initially not possible for a gaseous fluid to flow from the high-pressure side 6 to the low-pressure side 7.
  • the peripheral seal 15 itself moves into a taper 16 within the cylindrical valve body 12, so that in a contact surface 17 of seal 15 and taper 16 only a start and not a run over is realized.
  • the Absperrkolben14 is held by a compression spring 18 in the shut-off position.
  • the barrel pressure p F is on the low pressure side surface of the shut-off piston 14 and moves it to the high pressure side 6.
  • the shut-off piston 14 itself is in one Shut-off cylinder 19 movably mounted in the axial direction A, wherein the shut-off piston 14 moves into an entry space 20 in the shut-off cylinder 19.
  • the contact surface 17 is lifted between the seal 15 and taper 16, which is why the gas line 10 produces a gas-conducting contact from the high pressure side 6 to the low pressure side 7.
  • shut-off piston 14 flows Clamping gas through the gas line 10 to the low pressure side 7 and then also as the operating pressure p B on the surface 11 of the shut-off piston 14 on the low pressure side 7 and holds the shut-off piston 14 opposite to the spring force F of the compression spring 18 in the monitoring position.
  • an additional radial guide in the form of a pin 23 is provided here, which is guided in a screw-down bottom cap 24.
  • the bottom cap 24 can also be coupled otherwise.
  • the additional guide can also be formed in any other form.
  • the gap 26 between shut-off piston 14 and shut-off cylinder 19 would then be inconsistent and have at least sections in the axial direction A a higher radial guidance accuracy.
  • the outlet valve 5 itself is likewise formed by a cylindrical valve body 12 which has a flange collar 13 in its upper region.
  • the valve body 12 itself is formed in a lower portion to the low pressure side 7 out as an outer hollow body 29, wherein in the outer hollow body 29, an inner hollow body 30 is arranged centrally.
  • a shut-off body 9 is arranged in the form of a radially encircling shut-off ring, which is movably mounted in the axial direction A.
  • the shut-off body 9 is in a shut-off position, so that a leading through the outflow valve 5 gas line 10, which in particular here shown by the inner hollow body 30 is shut off from the high pressure side 6 against the low pressure side 7.
  • a Check valve 33 here formed by a ball which presses on a check valve spring 34, the ball in the direction of the high pressure side 6 at a contact surface 35 and thus closes to the high pressure side 6 out.
  • shut-off body 9 is retracted into a retraction space 20, wherein the retraction space 20 is connected via ventilation openings 22 to the environment U gas-conducting. Also, as in the first embodiment variant, the shut-off body 9 is moved counter to the spring force F of a compression spring 18 located in the retraction space 20 into the monitoring position. If the shut-off body 9 is moved to the monitoring position by the initial operation, the clamping gas pressure p S spreads via the gas line 10 in the direction of the low-pressure side 7, wherein the clamping gas flows past the check valve 33 in the gas line 10 in the direction of the low-pressure side 7.
  • the gas line 10 is guided radially outwardly relative to a central longitudinal axis 36 and then exits at a low-pressure end in the direction of the barrel 8, not shown. Again, clamping gas pressure p S , drum pressure p S and operating pressure p B are then approximately the same.
  • shut-off 9 moves back into the in FIG. 3a illustrated shut-off position.
  • a seal in particular of the retraction space 20, initially takes place, are in the in FIG. 3b shown monitoring position
  • two circumferential seals 37, 38 are provided, which are simultaneously run over by the shut-off body 9 and / or move with the shut-off body 9 on the inner circumferential surface 31 of the hollow body 29.
  • the lower seal 39 is again of the shut-off, as in FIG. 3a shown approached only with a contact surface 40 and not run over to minimize the friction.
  • Figure 3c shows a section line AA of the bottom view of Figure 3d and Figure 3e shows a perspective view of the discharge valve according to the invention 5. Again, the vent openings 22 can be seen on the high pressure side flange collar 13.

Landscapes

  • Devices For Dispensing Beverages (AREA)
  • Lift Valve (AREA)

Claims (24)

  1. Agencement de soutirage de boissons comprenant une soupape de décharge (5) pour utilisation dans une conduite de gaz sous pression pour une tête de soutirage (1) dans des installations de distribution de boissons, en particulier dans lequel la soupape de décharge (5) est montée sur ou dans une tête de soutirage (1) pour accouplement à un fût (8), dans lequel la soupape de décharge (5) présente un corps de soupape (12) qui possède un côté haute pression (6) et un côté basse pression (7), dans lequel le côté haute pression (6) et le côté basse pression (7) sont reliés l'un à l'autre via une conduite de gaz (10) en incorporant un corps d'arrêt mobile (9), caractérisé en ce que le corps d'arrêt (9) peut être transféré par un processus initial d'une position d'arrêt à une position de contrôle et, dans la position de contrôle, le côté haute pression (6) et le côté basse pression (7) sont reliés l'un à l'autre en mode conducteur de gaz, dans lequel une pression de gaz sous pression (pS) s'appliquant au côté haute pression (6) s'applique au côté basse pression (7) en tant que pression de fonctionnement (pB) et la pression de fonctionnement (pB) maintient le corps d'arrêt (9) dans la position de contrôle et, lors d'une chute de la pression de fonctionnement (pB), le corps d'arrêt (9) se déplace en position d'arrêt.
  2. Agencement selon la revendication 1, caractérisé en ce que le processus initial est déclenché par la pression de fût (pF) régnant dans le fût (8) et, lors d'un raccordement de la tête de soutirage (1) au fût (8), la pression du fût est transférée au corps d'arrêt (9).
  3. Agencement selon la revendication 1 ou 2, caractérisé en ce que, dans la zone haute pression, en particulier sur le côté haute pression (6), une pression de gaz sous pression (pS) de 0,01 à 10 bars, en particulier de 0,5 à 7,8 bars, en particulier 0,6 à 3,7 bars, s'applique.
  4. Agencement selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le corps d'arrêt (9) se déplace en position d'arrêt, lorsque la pression de fonctionnement (pB) chute à moins de 0,5 fois la pression de fonctionnement (pB), en particulier à moins de 0,5 bar, de préférence à moins de 0,2 bar.
  5. Agencement selon l'une quelconque des revendications précédentes, caractérisé en ce que la soupape de décharge (5) peut être incorporée à la conduite d'alimentation d'un gaz sous pression, en particulier la soupape de décharge (5) peut être vissée sur la tête de soutirage (1) ou la soupape de décharge (5) peut être implantée dans la tête de soutirage (1).
  6. Agencement selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il est prévu dans la soupape de décharge (5) en plus du corps d'arrêt (9), une soupape de retenue, en particulier une soupape de retenue double.
  7. Agencement selon l'une quelconque des revendications précédentes, caractérisé en ce que la soupape de décharge (5) présente une ouverture de purge d'air (22), dans lequel l'ouverture de purge d'air (22) est en contact avec l'environnement (U) en mode conducteur de gaz, en particulier l'ouverture de purge d'air (22) est prévue dans un espace de positionnement (20) pour le corps d'arrêt (9).
  8. Agencement selon l'une quelconque des revendications précédentes, caractérisé en ce qu'une face avant du corps d'arrêt (9) à laquelle la pression de fonctionnement (PB) s'applique est dimensionnée de sorte que la force résultant de la face avant et de la pression de fonctionnement (pB) agissant sur le corps d'arrêt (9) soit plus grande que la force de fermeture pour le transfert du corps d'arrêt (9) en position d'arrêt.
  9. Agencement selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un joint d'étanchéité (15) est incorporé entre la conduite de gaz (10) et le corps d'arrêt (9), dans lequel le corps d'arrêt (9) vient s'appliquer sur le joint d'étanchéité (15) en position d'arrêt, en particulier le joint d'étanchéité s'applique par une surface annulaire en position d'arrêt sur le corps d'arrêt (9).
  10. Agencement selon l'une quelconque des revendications précédentes, caractérisé en ce que le corps d'arrêt (9) est formé par un piston d'arrêt central (14), dans lequel le piston d'arrêt (14) se présente sous la forme d'un corps cylindrique.
  11. Agencement selon la revendication 10, caractérisé en ce que le piston d'arrêt (14) est guidé dans un cylindre d'arrêt (19), dans lequel est agencé dans le cylindre d'arrêt (19) un ressort de compression (18), qui maintient le piston d'arrêt (14) en position d'arrêt.
  12. Agencement selon la revendication 10 ou 11, caractérisé en ce que le piston d'arrêt (14) est maintenu en position de repos par un ressort, en particulier un ressort de compression (18), et peut être transféré en position de contrôle par le processus initial à l'encontre d'une force élastique.
  13. Agencement selon l'une quelconque des revendications 1 à 12, caractérisé en ce que le cylindre d'arrêt (19) est enveloppé par la conduite de gaz (10), dans lequel la conduite de gaz (10) est formée par au moins un alésage.
  14. Agencement selon l'une quelconque des revendications 10 à 13, caractérisé en ce qu'un guidage radial supplémentaire est affecté au piston d'arrêt (14).
  15. Agencement selon l'une quelconque des revendications 10 à 14, caractérisé en ce qu'il est prévu sur le piston d'arrêt (14) au moins un joint d'étanchéité périphérique radial (15), en particulier un joint torique, dans lequel le joint d'étanchéité (15) vient s'appliquer sur un rétrécissement de la conduite de gaz (10) dirigé vers l'intérieur en position d'arrêt.
  16. Agencement selon l'une quelconque des revendications précédentes, caractérisé en ce que la soupape de décharge (5) est formée d'un corps creux de forme cylindrique (29), dans lequel un corps creux interne (30) est agencé dans le corps creux (29), dans lequel le corps creux interne (30) est enveloppé radialement par le corps creux (29), de préférence une soupape de retenue (33) est agencée dans le corps creux interne (30).
  17. Agencement selon la revendication 16, caractérisé en ce que le corps creux interne (30) est couplé du côté haute pression (6) avec le corps creux (29) en mode étanche au gaz, dans lequel la conduite de gaz (10) du gaz sous pression est acheminée à travers le corps creux interne (30) et une ouverture de sortie du corps creux interne (30) est formée du côté basse pression (7), laquelle ouverture de sortie relie le corps creux interne (30) au corps creux (29) en mode conducteur de gaz.
  18. Agencement selon la revendication 16 ou 17, caractérisé en ce que l'ouverture de sortie s'étend dans la direction radiale par rapport à un axe longitudinal central du corps creux interne (30).
  19. Agencement selon l'une quelconque des revendications 16 à 18, caractérisé en ce que l'on implante dans le corps creux interne (30) un corps de soupape de retenue, qui bloque la soupape de décharge (5) vers le côté haute pression (6), en particulier en utilisant un ressort dans le corps creux interne (30).
  20. Agencement selon l'une quelconque des revendications 16 à 18, caractérisé en ce que le corps d'arrêt (9) se présente sous la forme d'une bague périphérique, dans lequel le corps d'arrêt (9) ferme l'ouverture de sortie en position d'arrêt et le libère en position de contrôle de sorte que le corps creux (29) et le corps creux interne (30) soient reliés l'un à l'autre en mode conducteur de gaz.
  21. Agencement selon l'une quelconque des revendications 16 à 20, caractérisé en ce que le corps d'arrêt (9) est maintenu en position d'arrêt par un ressort de compression (18) qui entoure extérieurement le corps creux interne (30) et le corps d'arrêt (9) peut être transféré par le processus initial dans la direction du côté haute pression (6).
  22. Agencement selon l'une quelconque des revendications 16 à 21, caractérisé en ce que le corps d'arrêt (9) est monté entre une surface de chemisage interne (31) du corps creux (29) et une surface de chemisage externe (28) du corps creux interne (30), en particulier en y incorporant des moyens d'étanchéité.
  23. Agencement selon l'une quelconque des revendications 16 à 22, caractérisé en ce que des joints toriques périphériques sont formés sur le corps d'arrêt (9) et/ou sur le corps creux interne (30).
  24. Procédé de fonctionnement d'un agencement pour le soutirage de boissons selon au moins la revendication 1, caractérisé en ce que, lors du verrouillage de la tête de soutirage (1) sur le fût (8), la pression (pF) s'appliquant dans le fût (8) s'applique au côté basse pression (7) de la soupape de décharge (1) et le corps d'arrêt (9) est ainsi transféré en position de contrôle.
EP13190601.8A 2012-11-09 2013-10-29 Agencement de soutirage avec soupape d'échappement Not-in-force EP2730536B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202012012774 2012-11-09

Publications (3)

Publication Number Publication Date
EP2730536A2 EP2730536A2 (fr) 2014-05-14
EP2730536A3 EP2730536A3 (fr) 2017-01-25
EP2730536B1 true EP2730536B1 (fr) 2017-07-12

Family

ID=49517282

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13190601.8A Not-in-force EP2730536B1 (fr) 2012-11-09 2013-10-29 Agencement de soutirage avec soupape d'échappement

Country Status (2)

Country Link
EP (1) EP2730536B1 (fr)
ES (1) ES2637217T3 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1239907A (en) * 1967-09-25 1971-07-21 Alumasc Ltd A connector unit for permitting fluid flow to or from a container
DE29919626U1 (de) * 1999-11-09 2000-01-20 Ipe Engineering Gmbh Zapfkopf zur Entnahme von unter Gasdruck stehenden Getränken
CN103153838B (zh) 2010-10-08 2016-04-20 微马蒂奇股份公司 用于分配系统的分配头

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
ES2637217T3 (es) 2017-10-11
EP2730536A2 (fr) 2014-05-14
EP2730536A3 (fr) 2017-01-25

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