• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Valve defining an internal circuit (3) extending between an upstream end (6) and a downstream end (5), the valve (1) comprising, arranged in series in the internal circuit (3): a valve (7) d isolation and a valve (8) dust cover, the valve (7) is movable relative to a seat (9) between an upstream position closing the circuit (3) and at least one downstream opening position of the circuit (3), said shut-off valve (7) being biased towards its upstream position by a return member (10), the dust cover (8) comprising a downstream end (108) and being arranged upstream of the flap (7) and being movable relative to the body (2) between an upstream position of closure of the upstream end of the circuit (3) and at least one downstream opening position of the upstream end of the circuit (3) , said dust cover (8) being biased towards its upstream position by a return member (14), the valve (1) further comprising, in the internal circuit (3), a residual pressure valve (11) separate from the isolation valve (7), the residual pressure valve (11) being arranged in series with the isolation valve (7) and downstream of the isolation valve (7)
    公开号:FR3033386A1
    申请号:FR1551811
    申请日:2015-03-04
    公开日:2016-09-09
    发明作者:Antoine Frenal
    申请人:Air Liquide SA；LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude；
    IPC主号:
    专利说明:

    [0001] The present invention relates to a valve, a pressurized fluid container and corresponding methods of filling, withdrawing and evacuating. The invention more particularly relates to a valve comprising a body delimiting an internal circuit for filling and withdrawing fluid, said internal circuit extending between an upstream end intended to be connected to a user member withdrawing or distributing fluid under pressure via the internal circuit and a downstream end intended to be put in relation with the storage volume of a pressurized fluid reservoir, the valve comprising, arranged in series in the internal circuit: an isolation valve and a dust cover, the isolation valve being movable relative to a seat between an upstream closing position of the circuit and at least one downstream opening position of the circuit, said isolating valve being biased towards its upstream position by a return member, the flap dust cover comprising a downstream end and being disposed upstream of the isolation valve and being movable relative to the body between a po upstream closure of the upstream end of the circuit and at least one downstream opening position of the upstream end of the circuit, said dust gate being biased to its upstream position by a return member. The invention particularly relates to a valve comprising a filling and withdrawal connection comprising in series, from upstream to downstream (in the direction of a gas filling), a dust cover and an isolation valve. EP2699837A1 discloses a pressurized gas valve comprising an isolation valve and a residual pressure valve arranged in series. The isolation valve can incorporate a non-return function. This structure 25 is however unsuitable for partially automated filling and racking. Actually, the actuation of the different valves must be done manually, independently of the connection operations on the filling port. EP2591274A1 discloses a fill connector comprising, in series, a dust cover and an isolation valve incorporating a non-return function. This type of filling valve is not perfectly adapted to the withdrawal of gas.
    [0002] The known devices are therefore either suitable for filling pressurized gas tanks to prevent unauthorized filling, or adapted for withdrawing gas under pressure to prevent outside gas from polluting the interior volume of the tank.
    [0003] Known devices do not make it possible both to simplify and automate the process of filling and withdrawing gas reservoirs via the same port or fitting while guaranteeing safety, reliability and ergonomics for the users. An object of the present invention is to overcome all or part of the disadvantages of the prior art noted above. To this end, the valve according to the invention, furthermore in accordance with the generic definition given in the preamble above, is essentially characterized in that the valve further comprises, in the internal circuit, a residual pressure valve. separate from the isolation valve, the residual pressure valve being arranged in series with the isolation valve and downstream of the isolation valve. Note that the terms "upstream" and "downstream" designate the two ends of the circuit (or the connection of the valve or the valve itself) when the fluid flows in the direction of a filling (from the outside towards the inside the tank). That is, when filling through the internal circuit the fluid flows from the upstream end to the downstream end. Of course, when the fluid is withdrawn it circulates in this case from downstream to upstream. Moreover, embodiments of the invention may include one or more of the following features: the dust cover is movable from its upstream closing position to a first determined downstream position known as a "non-contact" opening the upstream end of the circuit, in which the downstream end of the dust cover does not push the isolation valve, or a second determined downstream position called "contact" opening the upstream end of the circuit, in which the downstream end of the dust cover pushes an upstream end of the mobile isolation valve to move the isolation valve out of its seat by contact to a first downstream opening position of the circuit in which the isolation valve does not push not the residual pressure valve, or a third determined downstream position called "filling" opening the upstream end of the circuit, in which the end downstream of the dust cover pushes an upstream end of the movable isolation valve to move by contact the isolation valve out of his seat to a second downstream opening position of the circuit in which the isolation valve pushes the flap residual pressure 5 in an open position of the downstream end of the circuit, - the isolation valve is movable from its upstream downstream closure position in: a first determined downstream position of opening of the circuit, in which the isolation valve does not push the residual pressure valve, or a second determined downstream position of opening of the circuit in which a downstream end of the isolation valve pushes an upstream end of the residual pressure valve moving the valve residual pressure in an open position of the downstream end of the circuit, - the residual pressure valve comprises a non-return mechanism ("NRV") generating an ef strongly on the residual pressure valve urging it towards its closing position of the circuit when the latter is not actuated mechanically and is subjected to a determined fluid pressure at its upstream part, - the anti-return mechanism ("NRV Comprises a channel connecting an upstream end of the residual pressure valve to a downstream chamber, to transform a fluid pressure on the upstream portion of the residual pressure valve into a force on the downstream end of the residual pressure valve tending to move said residual pressure valve in its closed position of the circuit, the non-return mechanism ("NRV") comprises a determined surface ratio between, on the one hand, the upstream end of the residual pressure valve subjected to a fluid coming from upstream in the circuit and, on the other hand, the downstream end of the residual pressure valve, for urging said residual pressure valve in the position of when said downstream and upstream ends are subjected to a determined differential pressure, the valve comprises a downstream filter disposed in the internal circuit and interposed downstream of the residual pressure valve and binding at least a portion and preferably all the flow of fluid passing through the circuit through residual pressure valve open to pass through the filter, the residual pressure valve is configured to close the circuit as long as the pressure differential between its downstream and upstream ends does not exceed determined value, for example between three and six bar, that is to say that, if not actuated mechanically to its open position, the residual pressure valve opens the circuit only when the pressure of fluid exerted on its downstream face exceeds the pressure exerted on its upstream face by a predetermined value, the internal filling circuit extends along an axis between the upstream and downstream ends, the dust cover, the isolation valve and the residual pressure valve are arranged in series in this order from the upstream to the downstream in the internal circuit, the flap dust cover is displaceable in at least the following four distinct positions: its upstream position closing the upstream end 15 of the circuit, the first determined downstream position known as "non-contact", the second determined downstream position called "contact", the third determined downstream position called "filling", - said four distinct positions of the dust cover (upstream closing position, the first determined downstream position called "non-contact", the second determined downstream position called "contact", the third determined downstream position called "filling") are located at distinct and successive determined locations in the upstream / downstream direction in the circui t, - the isolation valve is movable in at least the three following positions: its upstream closing position, the first determined downstream position 25 of opening of the circuit, the second determined downstream position of opening of the circuit, - said three different positions of the isolation valve (upstream closure position, the first determined downstream opening position of the circuit, the second determined downstream position of the opening of the circuit are located at distinct and successive determined locations in the upstream / downstream direction in when the residual pressure valve is not moved mechanically into an opening position of the circuit (via the isolation valve), the anti-return mechanism ("NRV") prevents the flow of fluid under pressure upstream to the downstream while maintaining closed the residual pressure valve via the pressure of the fluid flowing from upstream to downstream on the residual pressure valve; the dust cover carries a filter interposed in the path of at least a portion of the fluid which passes between the upstream and the downstream of the circuit, the filter being movable with the dust cover, the flap valve dust comprises one or more passages for guiding at least part of the flow of fluid passing from upstream to downstream through the body of said dust cover, - the passage or passages are located upstream of the filter carried by the protective valve; dust and open upstream of said filter, - the valve body has a generally cylindrical portion whose outer surface comprises, from upstream to downstream, a cylindrical gripping zone comprising at least one groove and / or at least one peripheral rib and at least one of: a surface area having a plurality of surfaces, in particular a hexagonal area, a threaded zone; in the upstream position of closure of the upstream end of the circuit, the dust cover closes the way circuit The valve comprises at least one seal carried by the dust cover and / or the body of the valve for channeling the gas flowing in the circuit via the open upstream end of the circuit, for example the periphery of the circuit. dust cover includes a seal cooperating with the inner surface of the circuit, the internal circuit ensures both the filling and the withdrawal of gas, that is to say that the circuit is bidirectional, the fluid flowing upstream downstream (5) in the circuit via the valves in series in the case of a filling and flows downstream upstream in the circuit via the valves in series in the case of a withdrawal, - at the end of process of filling a pressurized gas container, the isolation valve is closed automatically by its return member when the force exerted on the upstream part of the latter becomes less than a determined threshold 30, - the outer surface of the body includes imprints forming a recess and / or attachment relief for cooperating with conjugate forms of a conditioning plug to form a selective mechanical fastening system, in particular with a quick connection, the valve comprises a conduit having a first end connected to the circuit downstream of the residual pressure valve and a second end connected to at least one of: a pressure measuring member (for example a pressure gauge mounted on the body) to indicate the pressure in the reservoir , a safety valve comprising a pressure-sensitive shutter for venting the gas out of the valve in the event of determined excessive pressure. The invention also relates to a pressurized fluid container, in particular a bottle or a set of pressurized gas cylinders, comprising a faucet according to any one of the above characteristics or hereinafter. The invention also relates to a method of filling such a container of pressurized fluid by means of a conditioning plug mechanically connected to the body of the valve removably, the method comprising a step of moving the valve dust cover of upstream to downstream in a determined downstream position called "filling" opening the upstream end of the circuit, wherein the downstream end of the dust cover pushes an upstream end of the movable isolation valve and moves by The isolating valve is urged out of its seat to a downstream opening position of the circuit, the residual pressure valve also being moved into an open position of the downstream end of the circuit to allow the transfer of fluid from. upstream downstream in the container. According to other possible features: 25 - in its determined downstream position called "filling" the downstream end of the dust cover pushes an upstream end of the movable isolation valve and displaces the isolation valve in contact with a determined position of opening in which the isolation valve in turn pushes the residual pressure valve in an open position of the downstream end of the circuit 30 to allow the transfer of upstream fluid downstream in the receptacle, - the dust cover is moved downstream by a mechanical action of one end of a movable poppet pusher belonging to the conditioning receptacle.
    [0004] The invention also relates to a process for withdrawing fluid under pressure from such a container by means of a conditioning plug mechanically connected to the body of the valve in a removable manner, the method comprising a first step of moving the check valve. dust from upstream to downstream in a determined downstream position called "contact" opening the upstream end of the circuit, wherein the downstream end of the dust cover pushes an upstream end of the movable isolation valve to move by contact the isolation valve out of its seat to a first downstream opening position of the circuit in which the isolation valve does not push the valve 10 residual pressure, to allow the withdrawal of fluid in the circuit of downstream upstream through the residual pressure valve opened by the downstream pressure in the container. The invention also relates to a method of evacuating the valve of such a container by means of a conditioning plug connected mechanically and sealingly to the body of the valve, the method comprising a step of moving the dust cover from upstream to downstream in a determined "contactless" downstream position opening the upstream end of the circuit but in which the downstream end of the dust cover does not push an upstream end of the movable isolation valve which remains in the closed position, and a step of generating a lower pressure than the atmospheric pressure in the upstream part of the withdrawal circuit, that is to say upstream of the isolation valve. The invention may also relate to any alternative device or method comprising any combination of the above or below features.
    [0005] Other features and advantages will appear on reading the following description, with reference to the figures in which: - Figure 1 shows a schematic and partial sectional view, illustrating the structure of a valve mounted on a tank according to an exemplary embodiment of the invention in a closed configuration (three closed valves), - 2 shows the valve of Figure 1 provided with an actuating member and in a first state (opening of the first valve FIG. 3 shows the valve of FIG. 1 provided with an actuating member and in a second said withdrawal state (opening of the three valves); FIG. 4 represents the valve of FIG. of an actuating member 5 and in a third state called "filling" (opening of the three valves), - Figure 5 shows the valve of Figure 1 provided with an actuating member and in a fourth state said «Anti-return (Opening of the first two valves and closing of the third valve), - Figure 6 shows a longitudinal sectional view, schematic and partial of an exemplary structural embodiment of a valve according to the invention in a closed configuration, - the FIG. 7 shows a view similar to FIG. 6 in which the valve is connected to a gas conditioning tool and is in a first state (opening of the first valve); FIGS. 8 and 9 represent views in longitudinal section; schematic and partial of the valve of Figure 6 connected to a gas conditioning tool and in a second state called "withdrawal", - Figure 10 shows a cross-sectional view of the valve of Figure 9 along a line AA, - Figure 11 shows a longitudinal sectional view of the valve of Figure 6 in which the valve is connected to a gas conditioning tool and is in a third state called "de remp Figure 12 is a longitudinal sectional view of the valve of Figure 6 in which the valve is connected to a gas conditioning tool and is in a fourth so-called "non-return" condition. Referring to Figures 1 and 6, the valve 1 comprises a body 2 defining an internal circuit 3 for filling and withdrawing fluid. The internal circuit 3 extends between an upstream end 6 intended to be connected to a user member withdrawing or distributing pressurized fluid via the internal circuit 3 and a downstream end 5 intended to be put in relation with the storage volume. Preferably, the internal circuit 3 extends along a longitudinal axis. Similarly, the body 2 preferably extends along a longitudinal axis and has a generally oblong shape, for example a cylindrical shape. The valve 1 comprises, arranged in series in the internal circuit 3 from upstream 6 to downstream, a valve 8 dust cover, a valve 7 isolation and a valve 11 residual pressure. Each valve preferably comprises a respective shutter movable relative to a respective seat. In addition, each movable shutter is biased by a respective return member such as a spring towards a closed position 10 of the internal circuit 3. Thus, the isolation valve 7 is movable in translation relative to its seat 9 between an upstream closure position of the circuit 3 and at least one downstream opening position of the circuit 3. The isolation valve 7 is biased towards its position. upstream by a return member such as a spring.
    [0006] The dust cover 8 comprises a downstream end 108 and is disposed upstream of the isolation valve 7. The valve 8 dust cover is movable relative to the body 2 between an upstream closing position of the upstream end of the circuit 3 and at least one downstream opening position of the upstream end of the circuit 3. The valve 8 dust cover is biased towards its upstream position by a return member 14 such as a spring. As shown in FIGS. 1 and 6, in a resting state (no external bias), the three valves 8, 7, 11 are in their closed position of the circuit 3. According to one advantageous feature, the dust cover 8 is 25 movable from its upstream closing position to a first determined downstream position known as "non-contact" opening the upstream end of the circuit 3, in which the downstream end of the dust cover valve 8 does not push the isolation valve 7 ( no contact with the isolation valve 7) cf. Figures 2 and 7. This position can be obtained for example by connecting to the upstream end of the body 2 of the valve 1 a tool 22 for filling and / or withdrawal. For example, the tool 22 comprises a member 23 pushes movable valve which slightly move the valve 8 by dust from upstream to downstream (see Figures 2 and 7). The valve push-button 23 can be moved, for example, via a pivoting lever which can be actuated manually, hydraulically, pneumatically, electrically or by any other suitable actuating member. This contactless position has many advantages. Thus, this configuration in which only the dust cover 8 is open makes it possible to seal a filling and / or draw-off tool at the upstream end of the tap with a constant force regardless of the pressure level. upstream of the valve 7 insulation. Indeed, the pressure upstream of the valve 8 dust cover may be the same as outside the valve (ambient atmospheric pressure), especially when the valve 8 dust cover closes 10 unsealed the upstream end 6 of the circuit 3. In addition, this non-contact configuration also allows a filling / racking tool to perform leak tests of the isolation valve 7. The fill / draw off tool is sealingly connected to the end 6 of the tap and can be configured to perform a vacuum (vacuum) in the upstream part of the circuit 3 (upstream of the isolation valve 7). . This makes it possible to carry out one or more tests to check / qualify the level of tightness of the valve 7 and the tool, for example before subjecting the mechanism to high pressures. The valve 8 dust cover is movable further downstream in a second determined downstream position called "contact" opening the upstream end 6 20 of the circuit 3 and wherein the end 108 downstream of the valve 8 dust cover comes pushing an upstream end of the isolation valve 7. The isolation valve 7 is then moved by contact from its seat 9 to a first downstream opening position of the circuit 3 in which the isolation valve 7 does not push the residual pressure valve 11 (see FIG. 8 and 9).
    [0007] That is, in this case, the first two valves 8, 7 are mechanically open while the third residual pressure valve 11 opens or closes depending on the pressure conditions (by fluidic actuation). . This configuration corresponds to a state of fluid withdrawal through the valve 1. In fact, if the pressure differential between the inside of the tank 4 (downstream of the valve 11 residual pressure) and the outside (upstream of the residual pressure valve 11) is sufficient, the valve 11 of residual pressure opens under the action of the gas pressure and the gas can escape from downstream 5 upstream 6 as shown schematically by the arrows at Figures 3, 8 and 9.
    [0008] The dust cover 8 is movable further downstream in a third determined downstream position called "filling" opening the upstream end 6 of the circuit 3. In this position the downstream end 108 of the valve 8 pare dust pushes an upstream end of the movable isolation valve 7 to 5 move by contact the isolation valve 7 out of its seat 9 to a second downstream opening position of the circuit 3. In this position the valve 7 d ' isolation pushes the valve 11 residual pressure in an open position of the downstream end of the circuit 3. That is to say that, in this case, the three valves 8, 7, 11 are open mechanically (c ' that is to say by mechanical actuation chain) 10 cf. Figures 4 and 11. In particular, the residual pressure valve 11 is thus mechanically open whatever the fluid pressure differential to which it is subjected. This configuration corresponds to a state of filling of a tank 4 through the valve 1, FIG. 4 schematizes with arrows the gas path from the upstream 6 to the downstream 5. Thus, the valve 7 is isolated. is movable from its upstream downstream closing position in: a first determined downstream opening position of the circuit 3, in which the isolation valve 7 does not push the residual pressure valve 11, or a second determined downstream position of opening of the circuit 3 in which a downstream end of the isolation valve 7 pushes an upstream end of the residual pressure valve 11 moving the residual pressure valve 11 into a forced opening position of the downstream end of the circuit 3.
    [0009] Preferably, the valve 11 of residual pressure comprises a mechanism 111, 211 anti-return ("NRV") generating a force on the valve 11 of residual pressure urging it to its closed position of the circuit 3 when the latter is not not mechanically actuated and is subjected to a determined fluidic pressure at its upstream part.
    [0010] That is, in the configuration of FIG. 3, if a user attempts to fill the tank (by injecting pressurized gas from upstream 6 downstream), the anti-return mechanism will cause the closing of the residual pressure valve 11 as illustrated in FIG. 5. In particular, the pressure of the upstream gas 30 downstream 5 will generate on the residual pressure valve 11 an effect in the direction of the closure of the latter (symbolized by a downward arrow on the downstream end of the valve 11 residual pressure). As illustrated in FIGS. 6 and following and in particular in FIG. 12, the mechanism 111, 211 anti-return ("NRV") may comprise a channel 111 connecting an upstream end of the residual pressure valve 11 to a downstream chamber 211 downstream to transform a fluid pressure on the upstream portion of the residual pressure valve 11 into a force on the downstream end of the residual pressure valve 11 tending to move said residual pressure valve 11 into its closed position of the circuit 3. The mechanism 111, 211 non-return ("NRV") may comprise in particular a ratio of determined surfaces between on the one hand the upstream end of the residual pressure valve 11 subjected to a fluid coming from the upstream in the circuit 3 ( from the outside) and, on the other hand, the downstream end of the residual pressure valve 11. This solicits the residual pressure valve 11 in the closed position when its upstream end is subjected to fluid under pressure at a pressure greater than the pressure exerted on its downstream end. This architecture with mechanism 111, 211 anti-return ("NRV) allows for rinsing cycles of the circuit 3 upstream of the valve 11 residual pressure to achieve for example mixtures in the bottle. That is to say that pressure rises and detents (purges) are successively carried out in the circuit 3. With the dust cover 8 open, during pressurization, the isolation valve 7 is opened. (pneumatically or mechanically) and the residual pressure valve 11 with the NRV mechanism 25 remains closed (because it is not actuated mechanically). With the dust cover 8 open, during the purging (expansion) phases, if the isolation valve 7 is mechanically open, the residual pressure valve 11 with the NRV mechanism remains closed and the circuit is purged upstream of the residual pressure valve 11. If, in the event of purging, the isolation valve 7 is closed (not actuated mechanically), the purge is only carried out upstream of the isolation valve 7. These purge phases allow to evacuate and control the nature of the gas in the relevant parts of the circuit without polluting the downstream volume of the circuit which communicates with the bottle 5. The pressure ranges used during the 3033386 13 phases of implementation For example, the pressure ranges can be between 10 and 100 bar, while the purge pressure ranges can be, for example, between 3 bar above atmospheric pressure and one bar below atmospheric pressure.
    [0011] In the nonlimiting example described, when gas under pressure comes from the upstream, this gas enters the chamber 211 downstream sealed by the channel 111 and produced by the resultant efforts a push of the claper 11 to its seat (to upstream) cf. FIGS. 5 and 12. For example, the residual pressure valve 11 is configured to close circuit 3 as long as the pressure differential between its downstream and upstream ends does not exceed a determined value, for example between three and six bars. , that is to say that, failing to be actuated mechanically to its open position, the residual pressure valve 11 opens the circuit only when the fluid pressure exerted on its downstream face exceeds the pressure exerted on its upstream face of a determined value. In addition, the higher the pressure coming from upstream, the greater the closing force of the valve 11 is important. FIGS. 6 to 12 illustrate in greater detail an example of possible and non-limiting embodiment of a valve according to FIGS. 1 to 5. The valve 1 has a body 2 that is essentially or predominantly cylindrical in shape and comprises four distinct distinct zones. Thus, a first zone of the body 2 (upstream side 6) comprises a cylindrical portion 18 defining on the outer surface of the body 2 one or more grooves 19 and / or one or more ribs 20. This portion 18 is provided forms a fingerprint determined for cooperate in mechanical engagement with a determined conjugated fastening member 24 (claw (s) and / or ball system or other ...) of a packaging member 22 (see, for example, FIG. 7). This portion 18 thus allows coding or decoding between the valve 2 (and therefore the gas of the tank to which it is attached) gas and the module 22 of withdrawal or corresponding filling.
    [0012] Downstream of this portion 18, the body 2 preferably comprises a zone designed to cooperate with a mounting tool (for example a key) on a reservoir. This interface preferably has several faces and is, for example, hexagonal for cooperation with a clamping tool and able to withstand the tightening torque necessary for proper body retention on a tank. Downstream, the body 2 comprises a threaded zone 22 for the connection of the valve 1 in the tapping of a gas cylinder for example.
    [0013] The body 2 comprises an internal central longitudinal bore forming the internal circuit 3. The dust gate valve 8 located at the upstream end 6 of the circuit 3 is preferably a non-sealed valve. That is to say, in the closed position it closes the upstream end in an unsealed manner. Also preferably, the dust cover 8 is flush (is located in the same plane as the upstream end 6 of the body 2) in the closed position. In this way, the risk of collecting water, dust or dirt is avoided or at least reduced by the valve 8 dust cover. As illustrated, the dust cover 8 may carry a filter 16 interposed in the path of at least a portion of the fluid which passes between the upstream and downstream of the circuit 3. The filter 16, which protects the valves 7 11, downstream is preferably movable with the valve 8 dust cover. As also illustrated, the dust cover valve 8 may include one or more internal passages 17 for guiding at least part of the flow of fluid passing from upstream 3 downstream 4 through the body of said valve 8 dust cover. The 20 or passages 17 are preferably located upstream of the filter 16 carried by the dust cover valve 8 and open upstream of said filter 16. In addition, in order to converge the flow of gas through the filter 16, the periphery of the filter 16 The dust cover 8 may comprise a seal (for example a ring) cooperating with the internal wall of the internal circuit 3 to constrain the flow of gas to converge in the passages 17 and the filter 16. The isolation valve 8 may comprise a central rod projecting downstream (forming a downstream end 108) and for cooperation with the valve 7 adjacent isolation. For example, this central rod can close a functional clearance (for mounting the rod in the filter 16) with a conical shape 30 slightly deforming a central bore of the filter 16). The filter 16 can be crimped in the valve 8 dust cover via a deformable outer zone of the valve 8. This ensures the maintenance of the filter 16 3033386 15 in the dust cover 8 and shut off the functional clearance (for mounting of the filter 16 in the dust cover 8). Downstream, the isolation valve 7 and its return member 10 may be formed in a tubular cartridge 26, 261 screwed into the body 2. This cartridge may be formed of two parts 26, 261 screwed to each other. and each respectively integrating an O-ring 27, 271 on its outer periphery to provide internal sealing. This cartridge 26, 261 guides the return member (spring 10) of the isolation valve 7. As illustrated, the downstream end of this cartridge 261 can accommodate and guide an annular withdrawal filter 15 disposed downstream of the isolation valve 7. This downstream end of the cartridge 261 can also cooperate with the valve 11 residual pressure forming a seat for the latter. In particular, the downstream end of this cartridge 261 forms a housing accommodating and compressing a seal 28 (for example, a ring) of an upstream end of the residual pressure valve 11. The residual pressure valve 11 may comprise a movable shutter in a piece 29 in the form of a cap. The shutter of the residual pressure valve 11 may comprise another downstream peripheral seal 31 cooperating with the interior of the plug-shaped part 29. The diameters of the two seals 28, 31 of the residual pressure valve 11 are different to generate a bearing section differential for the gas. At least one spring 13 housed in the piece 29 in the form of a cap generates a closing force on the shutter 11 upstream to ensure a minimum determined residual pressure upstream (for example, three bar) before allowing the opening of the residual pressure valve 11 under the action of the downstream pressure (in the tank). The piece 29 in the form of a cap is for example screwed into the body 2 and delimits with the shutter 11, the downstream chamber 211 of the non-return mechanism. For example, the piece 29 in the form of a cap clamps (squeezes) the withdrawal filter 15 against the downstream end of the cartridge 261. As can be seen in FIGS. 9 and 10, this piece 29 in the form of a cap may comprise or delimit longitudinal peripheral grooves at its outer periphery for channeling the passage of gas between upstream and downstream. That is to say that the passage of gas between the upstream and downstream of the isolation valve 11 is guided by these grooves 30 and forces the gas to necessarily pass through the filter 15 withdrawal. It should be noted that the extraction filter can be fixed (see FIGS. 6 to 11) or mobile (see FIGS. 4 and 5). A plunger tube 31 can be crimped at the downstream end of the body 2. This tube 31 can make counter-nut office for the piece 29 forming the cap of the residual pressure valve 11. In the closed position of the isolation valve 7 (FIGS. 1, 6; 2, 7), the downstream pressure in the tank 4 opens the residual pressure valve 11 (by overcoming the setting of the spring of the latter). The cartridge 26, 261 may comprise a transverse passage (not shown in the figures) forming a passage for the pressurized gas situated upstream of the seat 9 of the isolation valve 7 towards the peripheral space situated between the two peripheral joints 27, 271 of the cartridge 26, 261 This pressurized space can be connected to at least one of: - a pressure measuring device (for example a manometer mounted on the body 2) to indicate the pressure in the reservoir 4, - a pressure sensitive safety valve to evacuate the gas to the outside in case of excessive pressure. 20
    权利要求:
    Claims (14)
    [0001]
    REVENDICATIONS1. Valve comprising a body (2) delimiting an internal circuit (3) for filling and withdrawing fluid, said internal circuit (3) extending between an upstream end (6) intended to be connected to a user member withdrawing or dispensing fluid fluid under pressure via the internal circuit (3) and a downstream end (5) intended to be put in relation with the storage volume of a pressurized fluid reservoir, the valve (1) comprising, arranged in series in the circuit (3) internal: an isolation valve (7) and a valve (8) dust cover, the isolation valve (7) being movable relative to a seat (9) between an upstream position closing the circuit (3); ) and at least one downstream opening position of the circuit (3), said isolation valve (7) being biased towards its upstream position by a return member (10), the dust cover (8) comprising one end downstream (108) and being disposed upstream of the isolation valve (7) and being movable re to the body (2) between an upstream closing position of the upstream end of the circuit (3) and at least one downstream opening position of the upstream end of the circuit (3), said valve (8) dust cover being biased towards its upstream position by a return member (14), characterized in that the valve (1) further comprises, in the internal circuit (3), a valve (11) of residual pressure distinct from the valve (7) insulation, the residual pressure valve (11) being arranged in series with the isolation valve (7) and downstream of the isolation valve (7).
    [0002]
    2. Tap according to claim 1, characterized in that the valve (8) dust cover is movable from its upstream closure position to: - a first determined downstream position called "non-contact" opening the upstream end of the circuit (3 ), in which the end (108) downstream of the valve (8) dust cover does not push the valve (7) isolation, or - a second determined downstream position called "contact" opening the upstream end (6) ) of the circuit (3), in which the downstream end (108) of the dust cover (8) pushes an upstream end of the movable isolation valve (7) to move the isolation valve (7) by contact. out of its seat (9) to a first downstream opening position 3033386 18 of the circuit (3) in which the isolation valve (7) does not push the valve (11) of residual pressure, or - a third downstream position determined "filling" opening the upstream end (6) of the circuit (3), in which the end (108) downstream 5 of the valve (8) dust cover pushes an upstream end of the movable isolation valve (7) to move by contact the valve (7) isolation from its seat (9) to a second downstream opening position of the circuit (3) in which the isolation valve (7) pushes the residual pressure valve (11) into an open position of the downstream end of the circuit (3).
    [0003]
    3. Valve according to claim 1 or 2, characterized in that the isolation valve (7) is movable from its upstream downstream closure position in: - a first determined downstream position of the opening circuit (3) in which the isolation valve (7) does not push the residual pressure valve (11), or - a second determined downstream position of the opening of the circuit (3) in which a downstream end of the valve (7) of The isolation pushes an upstream end of the residual pressure valve (11) moving the residual pressure valve (11) into an open position of the downstream end of the circuit (3).
    [0004]
    4. Valve according to any one of claims 1 to 3, characterized in that the valve (11) of residual pressure comprises a mechanism (111, 211) anti-return ("NRV") generating a force on the valve (11). ) residual pressure urging it to its closed position of the circuit (3) when the latter is not actuated mechanically and is subjected to a determined fluid pressure at its upstream portion.
    [0005]
    5. Valve according to claim 4, characterized in that the mechanism (111, 211) anti-return ("NRV") comprises a channel (111) connecting an upstream end of the valve (11) of residual pressure to a chamber ( 211) downstream, for converting a fluid pressure on the upstream portion of the residual pressure valve (11) into a force on the downstream end of the residual pressure valve (11) tending to move said residual pressure valve (11). in its closing position of the circuit (3).
    [0006]
    6. Valve according to claim 5, characterized in that the mechanism (111, 211) anti-return ("NRV") comprises a determined surface ratio between firstly the upstream end of the valve (11) pressure residual fluid subjected to a fluid from the upstream in the circuit (3) and, secondly, the downstream end of the valve (11) of residual pressure, for biasing said valve (11) of residual pressure in the closed position when these downstream and upstream ends are subjected to a determined pressure differential.
    [0007]
    7. Tap according to any one of claims 1 to 6, characterized in that it comprises a filter (15) downstream disposed in the circuit (3) internal and interposed downstream of the valve (11) residual pressure and binding at at least a part and preferably all the flow of fluid passing through the circuit (3) through residual pressure valve (11) open to pass through the filter (15).
    [0008]
    8. Valve according to any one of claims 1 to 7, characterized in that the valve (11) of residual pressure is configured to close the circuit (3) as the pressure differential between its downstream and upstream ends n ' does not exceed a determined value, for example between three and six bar, that is to say that, failing to be mechanically actuated to its open position, the valve (11) residual pressure opens the circuit only when the fluid pressure exerted on its downstream face exceeds the pressure exerted on its upstream face by a predetermined value. 25
    [0009]
    9. Pressurized fluid container, in particular a bottle or a set of pressurized gas cylinders, comprising a valve (1) according to any one of claims 1 to 8.
    [0010]
    10. A method of filling a pressure fluid container according to claim 9 by means of a plug (22) connected mechanically mechanically connected to the body (2) of the valve (1) removably, characterized in that it comprises a step of moving the dust cover (8) from the upstream to the downstream in a determined downstream position called "filling" opening the upstream end (6) of the circuit (3), in which 3033386 The downstream end (108) of the dust cover (8) pushes an upstream end of the movable isolation valve (7) and moves the isolating valve (7) out of its seat (9) by contact with a downstream opening position of the circuit (3) and in that the residual pressure valve (11) is also moved into an open position of the downstream end of the circuit (3) to allow the transfer of fluid from the upstream downstream in the container (4).
    [0011]
    11. A method of filling according to claim 10, characterized in that in its determined downstream position called "filling" the end (108) downstream of the valve (8) dust cover pushes an upstream end of the valve 10 (7) movable insulation and moves the isolation valve (7) in contact with a determined opening position in which the isolation valve (7) in turn pushes the residual pressure valve (11) into a position of opening the downstream end of the circuit (3) to allow the transfer of upstream fluid downstream in the container (4). 15
    [0012]
    12. The method of claim 10 or 11, characterized in that the valve (10) dust cover is moved downstream by a mechanical action of an end of a movable poppet valve (23) belonging to the socket (22) conditioning.
    [0013]
    13. A process for withdrawing pressurized fluid from a pressurized fluid container according to claim 9 by means of a plug (22) connected mechanically mechanically connected to the body (2) of the valve (1) removably, characterized in that it comprises a first step of moving the valve (8) dust cover from upstream to downstream in a determined downstream position called "contact" opening the upstream end (6) of the circuit ( 3), wherein the downstream end (108) of the dust cover (8) pushes an upstream end of the movable isolation valve (7) to move the isolation valve (7) out of its seat by contact. (9) to a first downstream opening position of the circuit (3) in which the isolation valve (7) does not push the residual pressure valve (11), to allow fluid withdrawal in the circuit of the downstream (5) upstream (6) through the valve (11) of residual pressure opened by the pres downstream in the container (4). 3033386 21
    [0014]
    14.A method of evacuating the valve of a pressurized fluid container according to claim 9 by means of a conditioning plug (22) mechanically connected to the body (2) of the valve (1) in a sealed manner, characterized in that it comprises a step of moving the valve (8) dust cover from upstream to downstream in a determined downstream position called "non-contact" opening the upstream end (6) of the circuit (3 ) but in which the end (108) downstream of the valve (8) dust cover does not push an upstream end of the movable isolation valve (7) which remains in the closed position, and a step of generating a pressure 10 lower than the atmospheric pressure in the upstream portion of the circuit (3) for withdrawal, that is to say upstream of the valve (7) insulation.
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    同族专利:
    公开号 | 公开日
    FR3033386B1|2017-10-27|
    PL3265716T3|2019-06-28|
    DK3265716T3|2019-04-08|
    US20180038551A1|2018-02-08|
    PT3265716T|2019-04-02|
    ES2717005T3|2019-06-18|
    EP3265716B1|2018-12-26|
    WO2016139404A1|2016-09-09|
    EP3265716A1|2018-01-10|
    US10344918B2|2019-07-09|
    CA2978477A1|2016-09-09|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB1152890A|1966-07-18|1969-05-21|Shell Int Research|A Safety Closure Assembly, in particular for Butane or Propane Bottles|
    US3930517A|1974-06-11|1976-01-06|Gagala Jerome W|Safety valve|
    FR2955170A1|2010-01-13|2011-07-15|Air Liquide|Gas expander integrated tap for use in pressurized gas cylinder, has push-valve and pressure valve arranged in same housing of body, where push-valve is selectively moved independent of pressure valve for actuating insulation valve|
    FR2958006A1|2010-03-24|2011-09-30|Air Liquide|Valve i.e. gas valve, for use on pressurized gas container i.e. bottle, has connector including part integrated to body in removable manner, where connector is fixed in modifiable position with respect to body among preset positions|
    FR2962519A1|2010-07-09|2012-01-13|Air Liquide|FILLING FITTING, RECIPIENT AND FILLING METHOD THEREOF|
    EP2591274A1|2010-07-09|2013-05-15|L'Air Liquide Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude|Filling connector, container and filling method|
    US20120160335A1|2010-12-22|2012-06-28|GM Global Technology Operations LLC|Pressure retention valve and integrated valve for tank system|
    EP2699837A1|2011-04-22|2014-02-26|L'Air Liquide Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude|Valve for pressurized fluid, and corresponding tank and filling method|
    FR2996278A1|2012-10-02|2014-04-04|Air Liquide|DEVICE FOR A RESIDUAL PRESSURE VALVE, TAP AND BOTTLE COMPRISING SUCH A DEVICE|EP3578871A1|2018-06-04|2019-12-11|L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude|Device for delivering fluid under pressure|
    EP3708899A1|2019-03-12|2020-09-16|L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude|Valve, container for pressurised fluid and filling and extraction methods|
    EP3708900A1|2019-03-12|2020-09-16|L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude|Connector for pressurised fluid, valve and container comprising such a connector and connection method|
    CN111537164B|2020-05-20|2021-10-01|三门核电有限公司|C-shaped ball valve on-line stroke adjusting and pressing test system and method|
    法律状态:
    2016-03-21| PLFP| Fee payment|Year of fee payment: 2 |
    2016-09-09| PLSC| Search report ready|Effective date: 20160909 |
    2017-03-22| PLFP| Fee payment|Year of fee payment: 3 |
    2018-03-23| PLFP| Fee payment|Year of fee payment: 4 |
    2019-03-22| PLFP| Fee payment|Year of fee payment: 5 |
    2020-12-18| ST| Notification of lapse|Effective date: 20201110 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1551811A|FR3033386B1|2015-03-04|2015-03-04|TAP, CONTAINER AND METHODS OF FILLING, STRAINING AND VACUUMING|FR1551811A| FR3033386B1|2015-03-04|2015-03-04|TAP, CONTAINER AND METHODS OF FILLING, STRAINING AND VACUUMING|
    PT16714979T| PT3265716T|2015-03-04|2016-02-24|Valve, receptacle and method for filling, extracting and evacuating|
    EP16714979.8A| EP3265716B1|2015-03-04|2016-02-24|Valve, receptacle and method for filling, extracting and evacuating|
    PL16714979T| PL3265716T3|2015-03-04|2016-02-24|Valve, receptacle and method for filling, extracting and evacuating|
    DK16714979.8T| DK3265716T3|2015-03-04|2016-02-24|FILLS, CONTAINER AND PROCEDURE FOR FILLING, DRAINING AND DRAINING|
    PCT/FR2016/050426| WO2016139404A1|2015-03-04|2016-02-24|Valve, receptacle and method for filling, extracting and evacuating|
    US15/555,322| US10344918B2|2015-03-04|2016-02-24|Valve, receptacle and method for filling, extracting and evacuating|
    CA2978477A| CA2978477A1|2015-03-04|2016-02-24|Valve, receptacle and method for filling, extracting and evacuating|
    ES16714979T| ES2717005T3|2015-03-04|2016-02-24|Faucet, container and procedures for filling, extraction and realization of the vacuum|
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