EP3614036B1 - Dispositif de raccordement pour un récipient de pression gazeuse - Google Patents

Dispositif de raccordement pour un récipient de pression gazeuse Download PDF

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Publication number
EP3614036B1
EP3614036B1 EP18190710.6A EP18190710A EP3614036B1 EP 3614036 B1 EP3614036 B1 EP 3614036B1 EP 18190710 A EP18190710 A EP 18190710A EP 3614036 B1 EP3614036 B1 EP 3614036B1
Authority
EP
European Patent Office
Prior art keywords
coupling
connection
valve
gas container
opening
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.)
Active
Application number
EP18190710.6A
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German (de)
English (en)
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EP3614036A1 (fr
Inventor
Manuel Keel
Markus Leutwiler
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.)
KWC Group AG
Original Assignee
KWC AG
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 KWC AG filed Critical KWC AG
Priority to EP18190710.6A priority Critical patent/EP3614036B1/fr
Priority to US17/270,229 priority patent/US20210325001A1/en
Priority to PCT/EP2019/072044 priority patent/WO2020038844A1/fr
Publication of EP3614036A1 publication Critical patent/EP3614036A1/fr
Application granted granted Critical
Publication of EP3614036B1 publication Critical patent/EP3614036B1/fr
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Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/04—Arrangement or mounting of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/058—Size portable (<30 l)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/037—Quick connecting means, e.g. couplings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/013—Carbone dioxide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0107—Single phase
    • F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/035—High pressure (>10 bar)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/07—Applications for household use
    • F17C2270/0736—Capsules, e.g. CO2

Definitions

  • the present invention relates to a connection device for coupling a gas pressure container provided with a connection coupling for the storage of pressurized gases, in particular carbon dioxide.
  • the invention also relates to a corresponding gas pressure container provided with a connection coupling.
  • Gas pressure containers filled with CO 2 are used in drinking water bubblers, which serve to enrich drinking water with CO 2.
  • the gas pressure container is provided on the connection side with an external thread which is screwed into a corresponding connection part on the soda maker.
  • a mandrel arranged in the center of the connection part presses in a valve tappet at the connection of the gas pressure container, so that the valve located on the gas pressure container opens.
  • Drinking water sparklers are increasingly being offered as permanently installed devices that are installed below the kitchen worktop in the area of the drinking water supply lines. Due to the limited space available in such devices, the insertion or replacement of a gas pressure container is laborious and cumbersome, and moreover prone to operating errors during insertion.
  • the DE 2461373 describes a device for introducing gases into liquids, in particular beverages, which are filled into bottles or similar containers.
  • the device comprises a housing with a space for accommodating a gas cylinder, a screw connection for the gas cylinder, manually operated valve opening means, a filling head pivotably mounted on the housing with a sealing plug and a gas filler pipe and a height-adjustable support plate arranged below the filling head.
  • the present invention has therefore set itself the task of specifying a more user-friendly connection device for coupling a gas pressure container provided with a connection coupling, which simplifies insertion and replacement of the gas pressure container and is particularly suitable for use with permanently installed under-counter devices.
  • an associated gas pressure vessel with a corresponding connection coupling should be specified.
  • connection device by the features of claim 1 and with regard to the gas pressure container by the features of claim 7.
  • Advantageous embodiments can be found in the dependent claims.
  • a guide device for coupling a gas pressure container provided with a connection coupling
  • a guide device which can be pivoted about a pivot axis between a first pivot position and a second pivot position, the guide device having an opening at its end facing away from the pivot axis, which can be used for introducing the to be coupled gas pressure container is formed in an insertion direction extending radially with respect to the pivot axis.
  • a plug-in nipple is rigidly arranged on the connection device, which protrudes into an inner region of the guide device in such a way that its longitudinal axis runs in the radial direction with respect to the pivot axis of the guide device and is parallel to the insertion direction in the first pivot position of the guide device.
  • a gas pressure container can thus be inserted into the guide device in the axial direction. Since the longitudinal axis of the plug-in nipple lies in the insertion direction, it can couple into a corresponding coupling opening formed on the gas pressure container of a connection coupling provided there.
  • the guide device, together with the inserted pressure vessel, is then pivoted into the second pivot position. This results in the gas pressure container being locked within the guide device.
  • the insertion of a new gas pressure container into the connection device is thus carried out in a particularly simple manner by simply inserting the gas pressure container into the guide device (first pivot position) and pivoting the gas pressure container into the locking position (second pivot position).
  • the guide device has an anti-rotation device that rotates the coupled gas pressure container about its longitudinal axis with respect to the connection device prevented.
  • This anti-twist protection takes into account the fact that users of conventional connection devices for gas cartridges are used to a connection by means of screw threads and can thereby be tempted to want to turn an inserted gas cartridge even with a connection device according to the invention. This is prevented by an anti-twist device so that incorrect operation or damage due to excessive force is reliably prevented.
  • the anti-twist protection is preferably formed by at least one flattened inner wall of the guide device, which interacts with a correspondingly flattened side wall in the connection area of the gas pressure container.
  • the guide device can be shell-shaped or at least half-shell-shaped, so that it receives the front connection area of a gas pressure container and at least partially encloses it. This ensures safe guidance when inserting a gas pressure container and the gas pressure container is securely held in the locked second pivot position.
  • the plug nipple on the connection device is preferably designed such that it has a tapered neck area. In this neck area, the plug-in nipple can be held and locked within a corresponding connection coupling on the gas pressure container. Thus, in a preferred embodiment, the gas pressure container is locked via the plug-in nipple.
  • the guide device has at least one end stop which limits its swivel range in the first swivel position and / or the second swivel position.
  • Such an end stop is particularly advantageous in the first pivot position, in which the guide device is preferably pivoted forward in order to insert a gas pressure container, since it reliably defines the position in which the longitudinal axis of the plug-in nipple is parallel to the insertion direction.
  • the guide device In the second pivot position, the guide device is preferably oriented in a direction perpendicularly downward, while in the first pivot position it is oriented around one direction Angle in the range 30 ° to 90 ° is pivoted forward to allow easy insertion of a gas pressure container.
  • a pressure reducing valve connected to the plug-in nipple in a fluid-conducting manner can also be integrated into the connection device.
  • a pressure reducing valve which is usually attached externally to conventional gas pressure vessels, enables safe operation at a constant pressure that is adapted to the application.
  • the connection device comprises a base unit on which the pressure reducing valve is arranged and which is designed to set a gas pressure applied to the plug nipple to a constant value.
  • the pressure reducing valve further preferably has a housing into which the plug-in nipple is screwed or arranged on it. This results in a compact, space-saving unit.
  • a gas pressure container which is used to store gases under pressure and is designed for use with the connection device described above, has a connection coupling which has a rotationally symmetrical valve body which has a coupling opening for receiving a plug-in nipple designed or suitable for use with the connection coupling.
  • the connection coupling comprises a coupling housing attached to the gas pressure vessel, within which the valve body is rotatable about an axis of rotation perpendicular to the central axis of the coupling opening and is seated with its outer circumferential surface in a sealing manner with respect to an inner wall of the coupling housing.
  • valve body is preferably cylindrical, since the cylindrical shape enables the connection coupling to be assembled easily.
  • valve body can also have any rotationally symmetrical shape so that it can be mounted rotatably about its axis of rotation, for example a spherical or barrel shape.
  • An outlet bore is formed in the valve body which communicates with the coupling opening and which is in fluid-conducting connection with the pressure vessel in a second rotational position of the valve body.
  • the connection coupling thus simultaneously serves as a shut-off valve, which is closed in the first twisted position of the valve body and in the second twisted position of the valve body is open.
  • the gas pressure container can thus be plugged onto a plug nipple provided on a connection device and then pivoted with respect to the plug nipple, whereby the valve body is rotated into its second rotated position, in which a fluid connection between the connection coupling and the plug nipple inserted therein to the gas pressure container is released is.
  • the outlet bore can either be sealed off by the inner wall of the coupling housing or - which is preferred here - be in connection with an outwardly directed relief bore in the coupling housing.
  • the latter is used to evacuate any residual pressure contained in the lines connected to the gas pressure container in a controlled manner before the gas pressure container is removed. It is only essential that the outlet bore is not in any fluid-conducting connection to the interior of the gas pressure container in the first rotational position, so that a gas outlet from the gas pressure container is blocked.
  • a slide track is formed in the coupling housing, which is swept over by the coupling opening of the valve body during its rotary movement from the first to the second rotational position, and which in the area of the coupling opening in the first rotational position of the valve body has an opening dimension which at least that corresponds to the coupling opening, and along its further course up to the position of the coupling opening in the second rotational position has a smaller opening dimension in the transverse direction, which corresponds at least to the diameter of a tapered neck region of the plug nipple that can be used with the connection coupling.
  • a plug-in nipple inserted into the coupling opening is thus locked in the narrowing slide track when it is pivoted into the second rotational position and secured against being pulled out.
  • the valve body releases the fluid connection to the gas pressure container, a loosening of the plug connection between the connection coupling and the plug nipple is prevented.
  • the gas pressure container can be held and locked by the plug-in nipple on a connection device which partially receives or carries the gas pressure container.
  • the gas pressure container has an elongated, for example cylindrical shape, and the coupling housing is attached in the direction of the longitudinal axis of the gas pressure container, the coupling opening formed in the valve body in the first rotational position of the valve body, i.e. the closed valve position, collinear or parallel to the longitudinal axis of the gas pressure vessel is oriented.
  • the gas pressure vessel can thus be pushed in the direction of its longitudinal axis into a guide device of a connection device and at the same time plugged onto a plug-in nipple provided there, since the central axis of the coupling opening into which the plug-in nipple is inserted into the connection coupling on the gas pressure vessel coincides with its longitudinal axis. This enables a particularly easy-to-use and user-friendly coupling of the gas pressure container to a connection device.
  • the gas pressure container preferably has a connection head or connection neck which carries the coupling housing, for example a tapering connection area of an otherwise cylindrical pressure container.
  • an overpressure valve is also preferably integrated either in the coupling housing itself or in the connection area of the gas pressure container.
  • Such a pressure relief valve serves as a safety valve and enables the pressure to escape in the event that the internal pressure would rise to a critical value of, for example, 200 bar due to an extreme rise in temperature, in order to prevent the gas pressure container from bursting.
  • the gas pressure container is preferably designed in the form of a conventional gas cartridge or gas cylinder, as a cylindrical hollow body with a region that tapers towards a connection head that carries the coupling housing.
  • the coupling housing arranged on the gas pressure container or its connection head or the connection head of the gas pressure container itself are preferably designed with an anti-rotation device which prevents the gas pressure container from rotating about its longitudinal axis with respect to a connection device receiving the coupling housing.
  • the gas pressure container can be equipped with a quick-emptying protection valve which, in the event of a free flow of gas via the connection coupling, should it be accidentally opened, prevents the flow or at least throttles the gas flow.
  • a quick-emptying protection valve which, in the event of a free flow of gas via the connection coupling, should it be accidentally opened, prevents the flow or at least throttles the gas flow.
  • Such a quick emptying protection valve can be formed, for example, by a blocking body, which is held in its closed position under gas pressure against a passage opening of the quick emptying protection valve, and by a spring element which urges the blocking body into its open position away from the passage opening.
  • rapid emptying protection is achieved through a narrow passage opening which reduces a gas flow.
  • a non-return valve which opens counter to the outflow direction is preferably provided, which opens to fill the gas pressure container.
  • the through opening can be formed in the valve seat of the check valve.
  • a blocking element can be provided on the valve body, which is held under spring force in a blocking position in which it blocks rotation of the valve body and which is brought into an unlocking position by a plug nipple inserted into the coupling opening.
  • the valve body can only be brought into its second rotational position, the open position, when a plug-in nipple is inserted.
  • the anti-twist protection can be further improved, in that a recess of a predetermined depth is provided on the plug nipple, which cooperates with the locking member. Similar to a pin tumbler in a cylinder lock, the valve body can only be rotated if the locking element is held back by the amount specified by the recess on the plug nipple.
  • the invention also relates to an arrangement with a connection device and a gas pressure container of the above type coupled to it, the pivot axis of the guide device of the connection device and the axis of rotation of the valve body coinciding in the connection coupling of the gas pressure container. This results in a smooth, jam-free actuation of the valve body in the connection coupling when the gas pressure container inserted into the connection device is pivoted.
  • a gas pressure container in the form of an essentially cylindrical gas cartridge 10 is shown together with a connection device 20 which is used to couple the gas cartridge 10.
  • the gas cartridge 10 has a tapering neck region 10 'towards its connection, which opens into a connection head 10 ".
  • This has a connection opening which is provided with an internal thread onto which a connection coupling 12 is screwed, the function of which is explained in more detail below.
  • the connection device 20 has a base plate 21, which is attached to a device to be supplied, such as a CO 2 bubbler, and a guide device 22, which is articulated to the base plate 21, which is designed as a shell, partially skeletonized in the exemplary embodiment, for receiving the front, outlet-side region of the gas cartridge 10.
  • a joint 23 attached to the base plate 21 defines the pivot axis of the guide device 22.
  • Two projections 24 protruding backwards from the guide device 22 together with a projection 25 arranged on the base plate 21 form an end stop that controls the pivoting movement of the guide device 22 when it is pivoted forward Limited position.
  • a pressure reducing valve 21a is arranged on the base plate 21, which valve serves to set the gas pressure at the outlet of the gas cartridge 10 to a constant value.
  • the output pressure at the valve is fed back to a control input and ensures that the valve locks when the specified or set target output pressure is exceeded and the output pressure cannot rise above this preset value.
  • a piston or a membrane can serve as a pressure sensor.
  • Such pressure reducing valves are known per se to the person skilled in the art.
  • Fig. 1 the guide device 22 is shown in the swiveled-out state - the first pivot position - in which the gas cartridge 10 can be inserted into the guide device 22 in the axial direction, that is to say in the longitudinal direction of the gas cartridge 10.
  • the angle through which the guide device 22 is pivoted is approximately 45 ° in the exemplary embodiment.
  • Fig. 2 shows the state after the gas cartridge 10 has been completely inserted into the guide device 22, but is still in its swiveled-out state, the first swivel position.
  • the gas cartridge 10 After the gas cartridge 10 has been inserted into the guide device 22, the gas cartridge 10 together with the guide device 22 is pivoted downward about the pivot axis formed by the hinge 23 into a vertical position, the second pivot position. This is in Fig. 3 shown.
  • the gas cartridge 10 In the second pivot position, the gas cartridge 10, as will be explained in more detail below, is locked in the guide device 22 and connected in a fluid-conducting manner to a gas line opening into the connection device 20 and leading away to a device towards the rear (covered in the figures).
  • One in the connection coupling 12 of the gas cartridge 10 integrated valve is in the open state, so that gas can flow from the gas cartridge 10 via the connection device 20 to a connected consumer.
  • a plug nipple 26 is arranged in the interior of the connection device 20 in the area of the pivot axis.
  • the plug-in nipple 26 penetrates into a coupling opening provided on the connection coupling 12 and is accommodated therein in a sealing manner.
  • the plug-in nipple 26 remains rigid and does not pivot with the guide device 22.
  • the plug-in nipple 26 is screwed directly into the housing of the pressure reducing valve 21a or is arranged on it.
  • the pressure reducing valve 21a is in turn integrated into or received in the base unit 21, which is designed, for example, as a plastic molded part, so that a compact, space-saving unit results.
  • connection coupling 12 The two side surfaces 12 ′ of the connection coupling 12 are flattened so that they form a protection against rotation in a receptacle provided with a corresponding profile in the guide device 22, which prevents the gas cartridge from being rotated in the guide device 22.
  • the plug nipple 26 and its orientation with respect to the inserted and then pivoted gas cartridge 10 is shown.
  • the plug-in nipple 26 rotates a valve body 14 contained in the connection coupling 12, whereby the valve integrated in the connection coupling 12 is opened so that gas can flow from the gas cartridge 10 via the plug-in nipple 26 to the connection device 20.
  • connection coupling 12 has a coupling housing 15 with a screw connection 15 ′ with an external thread, with which it is screwed onto the neck 10 ′′ of the gas cartridge 10.
  • a cylindrical valve body 14 is received in a recess 14a of the housing 15 arranged perpendicular to the longitudinal axis of the gas cartridge 10. This is rotatable within the recess 14a and mounted in a sealing manner with its outer circumferential surface or jacket surface in relation to an inner wall of the recess 14a in the coupling housing 15.
  • the valve body 14 has in its lateral surface a coupling opening in the form of a bore 16, the center axis of which runs perpendicular to the axis of rotation of the valve body 14.
  • the coupling opening 16 serves as a receptacle for the plug-in nipple 26 arranged on the connection device 20.
  • a seal 18 is inserted into an annular groove running on the inside of the coupling opening 16.
  • the coupling opening 16 tapers off conically and forms a chamber in front of the plug-in nipple 26 when it is inserted.
  • An outlet bore 17 opens into this, which leads in the direction of the inner wall of the coupling housing 15.
  • a flow channel 19 is formed, which leads from the valve body 14 or the recess 14a into the inner region of the gas cartridge 10.
  • a seal for example an elastomer seal 13, can be used in the area of the flow channel 19, which seals the valve body 14 with respect to the inner wall of the recess 14a.
  • Fig. 6 The pivoted position shown, in which a gas cartridge 10 can be inserted into the guide device 22 and connected to the plug-in nipple 26, the plug-in nipple 26 is arranged coaxially with the guide device 22.
  • the position of the guide device 22 is defined by the end stop which is formed by the extension 24 attached to the guide device 22 and the projection 25 connected to the base plate 21.
  • a slot-shaped link track 15a is formed, which enables a pivoting movement of the plug-in nipple 26 when the valve body 14 is rotated.
  • the slide track 15a has the contour of a keyhole with a larger, circular opening area. This corresponds to the coupling opening in the first, in Fig. 6 Rotation position shown, so that the nipple 26 can be inserted.
  • the slide track 15a has an opening dimension that is narrower in the transverse direction, that is to say perpendicular to the plane of the drawing.
  • the plug nipple 26 correspondingly has a tapered neck area 26a on its side facing the connection device 20 and protruding from the coupling device 12, which fits through the narrower slot formed by the slide track 15a.
  • the nipple 26 can only be used in the Fig. 6 Rotation position shown, that is to say in the direction of the longitudinal axis of the gas cartridge 10, can be inserted into the coupling opening 16 or pulled out again. If, on the other hand, the guide device 22 together with the gas cartridge 10 inserted therein is in the second pivot position, as in FIG Fig.
  • the gas cartridge 10 can thus only be coupled and decoupled again in the closed valve position of the valve body 14 to or from the plug nipple 26 and thus to or from the connection device 20, while the connection between the gas cartridge 10 and connection device 20 is secure in the second pivot position is locked.
  • connection coupling 12 is also equipped with an integrated pressure relief valve 30.
  • This serves to enable the pressure to escape in the event of a temperature-related rise in the internal pressure in the gas cartridge above a critical value - in the exemplary embodiment above 200 bar - in order to prevent the gas cartridge from bursting.
  • the overpressure or safety valve 30 is formed by a nut and a thin bursting disk which bursts in the event of overpressure and releases an outlet opening through which gas can escape from the interior of the gas cartridge.
  • connection coupling 12 for a gas pressure container is shown as an additional measure, in which a non-return valve is also integrated in the coupling housing 15, which serves as protection against rapid drainage.
  • the cutting plane of the in Figure 8a The section shown extends in the longitudinal direction of the connection coupling but perpendicular to the in the Fig. 6 and 7th shown cuts.
  • the cutting plane of the Figure 8b corresponds to that in the Fig. 6 and 7th .
  • the cylindrical valve body 14 is in the in Figures 8a and 8b shown illustration not used.
  • the recess 14a provided for this purpose in the housing in the housing 15 is thus free.
  • the valve body 14 is pushed into the recess 14a from the left and secured, for example, by a locking ring.
  • An elastomer seal 13 can also be used in the installation space 14b located below.
  • the non-return or quick emptying protection valve comprises a blocking body 31, in this case a ball, which in the closed state rests against a valve seat 32 of the coupling housing 15.
  • a coil spring 33 exerts on the ball 31 exerts a downward force in the opening direction and thus holds the ball 31 in the open position. In this position, gas can flow past the ball 31 to the outlet of the connection coupling 12.
  • Figure 8a it looks as if, in the open state, the edge gap is blocked by the ball 31 close to the bottom. This is due to the two side protrusions that prevent the ball from falling out.
  • Figure 8b one can see the free edge gap around the ball 31, through which gas can flow through the check valve in the open state.
  • the function of the non-return valve which is used to protect against rapid emptying, is to prevent the outflow in the event of a free outflow of gas via the open connection coupling 12. If no consumer is connected to the connection coupling 12 and the valve is accidentally opened, the outflowing gas presses the valve ball 31 against the spring force of the opening spring 33 against the valve seat 32 and thus reduces the gas flow. In normal operation there is only a small pressure difference upstream and downstream of the check valve, so that the force of the opening spring 33 is sufficient to keep the valve ball 31 in the open state.
  • a small groove 34 in the valve seat 32 which serves as a bypass, ensures that when the valve is closed, i.e. when the valve ball 31 is in contact with the valve seat 32, the pressure difference in front of and behind the check valve can be reduced again, so that the spring 33 opens the valve again opens.
  • FIG Fig. 9 Another exemplary embodiment for a connection coupling 12 with quick drain protection is shown in FIG Fig. 9 shown.
  • the cutting plane runs in the same way as in Fig. 8 .
  • a valve body in the form of a ball 31 ′ is provided, which is held against a valve seat 32 ′ in the coupling housing 15.
  • the spring 33 ' is located on the opposite side and exerts a force that holds the valve ball 31' against the valve seat 32 '.
  • a lateral groove 34 'formed in the valve seat 32' represents a narrow flow path through which gas can flow in the direction of the outlet during normal operation when the valve 14 is open.
  • the bypass 34 'thus serves as a simple constriction which, due to its throttling effect, ensures a sufficient reduction in the gas flow when flowing out, but still allows sufficient gas to pass through in normal operation.
  • the check valve formed by ball 31 ', valve seat 32' and spring 33 'thus acts against the outflow direction and serves to enable the gas cartridge 10 to be filled quickly. If external pressure is applied to fill the gas cartridge 10, it lifts the valve ball 31 ′ from its valve seat 32 ′ and thus enlarges the flow path so that an increased gas flow can flow through the gas cartridge 10 to fill the gas cartridge 10. This results in a reduction in the flow path only in the outflow direction.
  • connection coupling 12 a further exemplary embodiment of a connection coupling 12 is shown.
  • the cut runs here as in the Fig. 6 and 7th .
  • An anti-twist device for the valve body 14 is provided here as an additional function.
  • the anti-rotation device is formed by a two-part tumbler pin, the function of which is similar to that of a pin tumbler on a cylinder lock.
  • the left part pin 35a is seated in a lateral bore 38 in the coupling housing 15 and is tensioned against the valve body 14 by a spring 36. This has a corresponding bore 38b into which the second part pin 35b is inserted.
  • a spring 36 This has a corresponding bore 38b into which the second part pin 35b is inserted.
  • connection coupling is also flattened on one side on the rear side (on the right in the figure) as a protection against rotation.
  • the locking pins 35a, 35b are shown as an enlarged detail. If the nipple 26 is pulled out of the coupling opening 16, the spring 36 pushes the two sub-pins 35a and 35b inward, so that the sub-pin 35a protrudes into the bore 38b in the valve body 14 and blocks a twisting movement of the valve body 14.
  • the plug nipple 26 has an annular circumferential groove or notch 37 which corresponds to the position of the locking pins 35a, 35b.
  • the depth of this groove 37 is dimensioned such that when the plug-in nipple 26 is inserted, the part pin 35b is pushed in just enough that it holds the part pin 35a out of the bore 38b. In this position, the valve body 14 is unlocked and can be rotated will. If, however, a plug-in nipple 26 is inserted without a corresponding notch 37, it pushes the right part pin 35b too far in, so that it penetrates into the bore 38a of the coupling housing 15 and thus in turn blocks the valve body 14 from rotating.
  • the plug-in nipple 26 with the groove 37 thus serves as a key for unlocking the anti-rotation device, so that the rotary movement of the valve body 14 can only be unlocked and released with the appropriate plug-in nipple 26. In this way, manipulation is prevented in that, for example, an attempt could be made to open the valve with an object inserted into the coupling opening 16.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Claims (15)

  1. Dispositif de raccordement (20) dévolu à l'accouplement d'un récipient (10) sous pression gazeuse muni d'un embout de raccordement (12) et destiné au stockage de gaz pressurisés, notamment de dioxyde de carbone,
    caractérisé par
    - un système de guidage (22) apte à pivoter, autour d'un axe de pivotement, entre une première position prise par pivotement et une seconde position prise par pivotement, lequel système de guidage (22) est pourvu, à son extrémité pointant à l'opposé de l'axe de pivotement, d'un orifice réalisé en vue de l'introduction du récipient (10) sous pression gazeuse, voué à l'accouplement, dans une direction d'introduction s'étendant radialement par rapport audit axe de pivotement, et
    - un raccord enfichable (26) implanté rigidement sur le dispositif de raccordement (20) et pénétrant dans une région intérieure du système de guidage (22), de façon telle que l'axe longitudinal dudit raccord s'étende dans la direction radiale par rapport à l'axe de pivotement dudit système de guidage (22), et soit parallèle à la direction d'introduction dans la première position que ledit système de guidage (22) a prise par pivotement.
  2. Dispositif de raccordement (20) selon la revendication 1, dans lequel le système de guidage (22) est doté d'une protection antirotation qui empêche le récipient (10) sous pression gazeuse, à l'état accouplé, de tourner autour de son axe longitudinal par rapport audit dispositif de raccordement (20) ; dans lequel, de préférence, ladite protection antirotation est formée par au moins une paroi intérieure aplatie dudit système de guidage (22).
  3. Dispositif de raccordement (20) selon la revendication 1 ou 2, dans lequel le système de guidage (22) est réalisé en forme de coque ou, pour le moins, en forme de demi-coque.
  4. Dispositif de raccordement (20) selon l'une des revendications précédentes, dans lequel le raccord enfichable (26) possède une zone de col (26a) présentant un dimensionnement réduit.
  5. Dispositif de raccordement (20) selon l'une des revendications précédentes, dans lequel le système de guidage (22) comporte au moins une butée d'extrémité qui limite la plage de pivotements dudit système dans la première position prise par pivotement et/ou dans la seconde position prise par pivotement.
  6. Dispositif de raccordement (20) selon l'une des revendications précédentes, incluant une unité d'embase (21) au niveau de laquelle et implantée une vanne (21a) réductrice de pression conçue pour régler, sur une valeur constante, une pression gazeuse exercée sur le raccord enfichable (26) ; dans lequel, de préférence, ladite vanne (21a) réductrice de pression est pourvue d'un carter et ledit raccord enfichable (26) est vissé dans ledit carter de la vanne (21a) réductrice de pression, ou est disposé sur ce dernier.
  7. Récipient (10) sous pression gazeuse destiné au stockage de gaz pressurisés, notamment de dioxyde de carbone, et muni d'un embout de raccordement (12),
    caractérisé par
    - un corps distributeur (14) à symétrie de révolution, percé d'un orifice d'accouplement (16) en vue de recevoir un raccord enfichable (26) pouvant être utilisé avec l'embout de raccordement (12),
    - ainsi qu'un boîtier d'accouplement (15) qui est installé sur ledit récipient (10) sous pression gazeuse et à l'intérieur duquel le corps distributeur (14) est monté de manière rotative, autour d'un axe de rotation s'étendant perpendiculairement à l'axe médian dudit orifice d'accouplement (16), et de manière étanche, par la surface de son pourtour extérieur, vis-à-vis d'une paroi intérieure dudit boîtier d'accouplement (15),
    sachant qu'un alésage de sortie (17), pratiqué dans le corps distributeur (14), communique avec l'orifice d'accouplement (16) et est en liaison fluidique avec ledit récipient (10) sous pression gazeuse lorsque ledit corps distributeur (14) occupe une seconde position prise par rotation.
  8. Récipient (10) sous pression gazeuse selon la revendication 7, dans lequel une piste de coulissement (15a), ménagée dans le boîtier d'accouplement (15), est balayée par l'orifice d'accouplement (16) du corps distributeur (14) lors de son mouvement rotatoire de la première à la seconde position prise par rotation, ladite piste présentant dans la région de l'orifice d'accouplement (16), lorsque ledit corps distributeur (14) occupe la première position prise par rotation, une cote d'ouverture qui correspond au moins à celle dudit orifice d'accouplement (16) et, le long de la poursuite de son tracé jusqu'à l'emplacement dudit orifice d'accouplement (16) dans la seconde position prise par rotation, une cote d'ouverture moindre, dans la direction transversale, qui correspond au moins au diamètre d'une zone de col (26a), de dimensionnement réduit, du raccord enfichable (26) pouvant être utilisé avec l'embout de raccordement (12).
  9. Récipient (10) sous pression gazeuse selon la revendication 7 ou 8, doté d'une forme allongée, le boîtier d'accouplement (15) étant implanté dans la direction de l'axe longitudinal dudit récipient (10) sous pression gazeuse et l'orifice d'accouplement (16), pratiqué dans le corps distributeur (14), étant orienté colinéairement ou parallèlement audit axe longitudinal du récipient (10) sous pression gazeuse lorsque ledit corps distributeur (14) occupe la première position prise par rotation.
  10. Récipient (10) sous pression gazeuse selon l'une des revendications 7 à 9, comprenant une tête de raccordement (10") portant le boîtier d'accouplement (15), et une vanne de surpression (30) intégrée dans ladite tête de raccordement (10") ou dans ledit boîtier d'accouplement (15).
  11. Récipient (10) sous pression gazeuse selon l'une des revendications 7 à 10, réalisé en tant que corps creux cylindrique pourvu d'une région (10') s'amenuisant en direction d'une tête de raccordement (10") portant le boîtier d'accouplement (15), ledit boîtier d'accouplement (15) ou ladite tête de raccordement (10") étant préférentiellement doté(e) d'une protection antirotation qui empêche le récipient (10) sous pression gazeuse de tourner, autour de son axe longitudinal, par rapport à un dispositif de raccordement (20) recevant ledit boîtier d'accouplement (15) ; dans lequel, de préférence, ladite protection antirotation est formée par au moins une paroi latérale aplatie dudit boîtier d'accouplement (15).
  12. Récipient (10) sous pression gazeuse selon l'une des revendications 7 à 11, équipé d'une soupape de protection à effet de vidange rapide qui, dans le cas d'un libre échappement de gaz s'écoulant par l'embout de raccordement (12) ouvert, interdit ledit échappement ou jugule pour le moins le flux gazeux.
  13. Récipient (10) sous pression gazeuse selon la revendication 12, dans lequel la soupape de protection à effet de vidange rapide est constituée d'un corps de blocage (31) maintenu dans sa position fermée, sous pression gazeuse, contre un orifice de passage de ladite soupape de protection à effet de vidange rapide, un élément élastique (33) poussant ledit corps de blocage (31) vers sa position ouverte, en l'éloignant dudit orifice de passage.
  14. Récipient (10) sous pression gazeuse selon la revendication 12, dans lequel la soupape de protection à effet de vidange rapide est constituée d'une zone resserrée ; dans lequel il est de préférence prévu, en plus de ladite zone resserrée, un clapet antiretour à ouverture en sens inverse de la direction d'échappement, qui s'ouvre en vue du remplissage dudit récipient sous pression gazeuse ; dans lequel par ailleurs, de préférence, ladite zone resserrée est ménagée dans le siège d'obturation dudit clapet antiretour.
  15. Récipient (10) sous pression gazeuse selon l'une des revendications 7 à 14, dans lequel le corps distributeur (14) inclut un organe de blocage qui est maintenu, par une force élastique, dans une position de blocage dans laquelle il fait barrage à une rotation dudit corps distributeur (14), et qui est amené à une position de déblocage par l'intermédiaire d'un raccord enfichable (26) introduit dans l'orifice d'accouplement (16).
EP18190710.6A 2018-08-24 2018-08-24 Dispositif de raccordement pour un récipient de pression gazeuse Active EP3614036B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP18190710.6A EP3614036B1 (fr) 2018-08-24 2018-08-24 Dispositif de raccordement pour un récipient de pression gazeuse
US17/270,229 US20210325001A1 (en) 2018-08-24 2019-08-16 Connection device for a gas pressure chamber
PCT/EP2019/072044 WO2020038844A1 (fr) 2018-08-24 2019-08-16 Dispositif de raccordement d'un récipient de gaz sous pression

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18190710.6A EP3614036B1 (fr) 2018-08-24 2018-08-24 Dispositif de raccordement pour un récipient de pression gazeuse

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EP3614036A1 EP3614036A1 (fr) 2020-02-26
EP3614036B1 true EP3614036B1 (fr) 2021-11-10

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Publication number Priority date Publication date Assignee Title
LU500632B1 (en) 2021-09-08 2023-03-09 Rotarex Solutions S A Co2 cartridge valve with interlocking part
DE102022202666A1 (de) * 2022-03-17 2023-09-21 Blanco Gmbh + Co Kg Führungsvorrichtung zum Anschluss einer Fluidkartusche
EP4276348A1 (fr) * 2022-05-09 2023-11-15 Sodapop Gmbh Soupape pour cartouche de gaz, cartouche de gaz pour un dispositif de purification d'eau et procédé de remplissage d'une telle cartouche de gaz
WO2023227531A1 (fr) * 2022-05-27 2023-11-30 Sodapop Gmbh Soupape pour cartouche de gaz, cartouche de gaz pour un dispositif de gazéification d'eau et procédé de remplissage d'une telle cartouche de gaz

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE465181B (sv) * 1989-06-29 1991-08-05 Atlas Copco Tools Ab Snabbkoppling med vridventil
JP3514724B2 (ja) * 2000-11-29 2004-03-31 日東工器株式会社 管継手
US6513545B2 (en) * 2001-01-16 2003-02-04 Evan M. Rhone Safety valve with adjustable maximum flow shut off mechanism
JP3829117B2 (ja) * 2002-12-27 2006-10-04 日東工器株式会社 管継手
US8113240B2 (en) * 2008-08-01 2012-02-14 Marshall Excelsior Company Low emission fluid transfer device
EP2236905A1 (fr) * 2009-04-03 2010-10-06 Tru-Air Limited Appareil reremplissable pour le stockage de gaz comprimé
US8132564B2 (en) * 2009-09-04 2012-03-13 Gayston Corporation Pressure bottle for paintball marker

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WO2020038844A1 (fr) 2020-02-27
EP3614036A1 (fr) 2020-02-26

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