EP3278007B1 - Soupape de cylindre ayant un régulateur de pression intégré - Google Patents

Soupape de cylindre ayant un régulateur de pression intégré Download PDF

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Publication number
EP3278007B1
EP3278007B1 EP16712383.5A EP16712383A EP3278007B1 EP 3278007 B1 EP3278007 B1 EP 3278007B1 EP 16712383 A EP16712383 A EP 16712383A EP 3278007 B1 EP3278007 B1 EP 3278007B1
Authority
EP
European Patent Office
Prior art keywords
pressure
valve
regulator
pilot
gas
Prior art date
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Active
Application number
EP16712383.5A
Other languages
German (de)
English (en)
Other versions
EP3278007A1 (fr
Inventor
Christopher John COWLES
Colin HADEN
Duncan Wales
Mark MELLORS
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.)
Linde GmbH
Original Assignee
Linde GmbH
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Filing date
Publication date
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Publication of EP3278007A1 publication Critical patent/EP3278007A1/fr
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Publication of EP3278007B1 publication Critical patent/EP3278007B1/fr
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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
    • 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
    • F17C2205/0323—Valves
    • F17C2205/0326—Valves electrically actuated
    • 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
    • F17C2205/0323—Valves
    • F17C2205/0332—Safety valves or pressure relief 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
    • 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
    • F17C2205/0338—Pressure regulators
    • 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
    • F17C2205/0382—Constructional details of valves, regulators
    • F17C2205/0385—Constructional details of valves, regulators in blocks or units
    • 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
    • F17C2205/0388—Arrangement of valves, regulators, filters
    • F17C2205/0394—Arrangement of valves, regulators, filters in direct contact with the pressure vessel
    • 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
    • F17C2223/036—Very high pressure (>80 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
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/03—Control means
    • F17C2250/032—Control means using computers
    • 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
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/03—Control means
    • F17C2250/034—Control means using wireless transmissions
    • 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
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0404—Parameters indicated or measured
    • F17C2250/043—Pressure
    • 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
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/06—Controlling or regulating of parameters as output values
    • F17C2250/0605—Parameters
    • F17C2250/0626—Pressure

Definitions

  • the present invention relates to a cylinder valve with integrated pressure regulator.
  • Such valves are known in the art as VIPRs (Valves with Integrated Pressure Regulator).
  • Such valves are fitted on gas cylinders in order to reduce the pressure from the gas cylinder (often at a pressure of 300 bar or more) down to an outlet pressure, typically below 10 bar.
  • cylinder valve
  • the invention is applicable broadly to all portable pressurised gas containers including gases stored under pressure as liquids whether they are strictly in the form of a cylinder or not.
  • Such cylinders are used to supply gas for a range of applications including welding and cutting hoses and torches, gas packaging machines and laboratory equipment. Using a VIPR this equipment can be connected directly to the valve outlet without the need for an additional externally connected regulator.
  • the regulator needs to be adjustable to allow a user to supply gas at the required pressure and flow rate for a given application. For example, different flow rates of shielding gas are normally required for different material thicknesses during welding processes. Further, the majority of VIPRs need adjusting several times a day to alter the pressure or flow rate as the cylinder pressure drops and consequently outlet pressure increases. Conventionally in a VIPR, the force required to adjust the outlet pressure of the regulator is provided by the application of a manually applied torque rotating a hand wheel. The pressure required is dependent upon the outlet pressure requirements and increases as the outlet pressure increases. This torque demand can often be demanding for the user, particularly when dealing with a high outlet pressure. If the regulator is intended to be operated using an electric motor controlled by on-board power supply, the torque and therefore energy requirement of the regulator may become prohibitive in terms of the capacity required from the on-board power supply.
  • an integrated pressure reducing valve assembly namely for a pressurized gas container, which comprises in a common body: a high pressure gas inlet port, a high-pressure circuit portion, a shut-off valve, a pressure regulator, a low-pressure circuit portion and a low-pressure gas outlet port.
  • a high-pressure gauge is in communication with the high-pressure circuit portion and a low-pressure gauge is in communication with the low-pressure circuit portion.
  • the low-pressure gauge is mounted onto a removable connector unit for removably connecting a consumer equipment to the low pressure gas outlet port.
  • a tap including a body, which is provided with a gas inlet that is to be connected to the storage space of a container, a bleed-off circuit, and including a downstream end that is to be selectively fluidly connected to a bleed-off member, the bleed-off circuit including an isolation valve and a pressure-release member, the tap also including a member for manually controlling the movement of the selectively movable isolation valve into a first position and into a second position, wherein, in the first position thereof, the control member places the isolation valve in a position for opening the bleed-off circuit and, in the second position thereof, the control member places the isolation valve in a position for closing the bleed-off circuit.
  • the tap further includes a circuit for selectively controlling the movement of the isolation valve into the first position thereof for opening the bleed-off circuit, the control circuit including a first end connected to the valve, and a second end that can be selectively coupled to an actuator of a gas bleed-off member, in order to selectively electrically control the movement of the valve into the position for opening the bleed-off circuit.
  • the isolation valve constitutes a selective pressure expansion device for the output gas, the isolation valve being a valve of the type selectively driven proportionally by a separate actuator to selectively regulate the outlet pressure of the output gas.
  • a cylinder valve with integrated pressure regulator as defined in claim 1.
  • Pilot operated pressure regulators are known in other fields. However, these are generally large scale devices in which the pilot valve is a separate component in its own housing which is connected to the regulator via a pipe. Such pilot operated regulators are designed for applications which require a high level of outlet pressure accuracy. They are not used to reduce the operating torque required to adjust the regulator as the regulators are operated using mains power. They are not used in pressurised cylinder applicators as these rely on direct action mechanical means for valve closure/opening and pressure adjustment. Therefore, existing pilot valves are not configured in the same manner as in the present invention in that they are not within the housing containing the shut off valve and regulator. As well as being configured differently, they are used in an entirely different field for an entirely different purpose.
  • the primary drivers of the present invention are to make a small device as it is required to fit on the cylinder and to reduce the torque necessary to operate the regulator.
  • the pilot regulator has a positive seat valve element.
  • the positive seat valve element is one which seats on the low pressure side of its corresponding valve port as opposed to a reverse seat valve which passes through the port and seats on the high pressure side.
  • Such a valve element requires a significantly smaller diameter seat than a reverse seat valve for the same flow requirement. This allows a smaller piston size for the same accuracy.
  • the smaller piston size reduces the upward force from the gas pressure which allows the biasing springs to be smaller and requires less torque to adjust.
  • the pilot regulator preferably has an inlet port in communication with high pressure gas from the cylinder and a pilot valve element biased towards the inlet port to control the flow of gas through the inlet port, a biasing element providing a biasing force on the pilot valve element and being adjustable by an actuator to control the pressure of pilot gas passing through the inlet port to the regulator to vary the force on a restricting element in the regulator.
  • the biasing element may be a single spring positioned between the actuator and the pilot valve element. However, preferably, the biasing element is arranged to bias the pilot valve element open while a balancing biasing element is positioned between the pilot actuator and the pilot valve element to provide an opposing force on the pilot valve element. The presence of the balancing element allows a smaller package for the pilot regulator.
  • the pilot valve element may be manually operated, in which case it requires less effort from a user to adjust the regulated pressure.
  • the pilot valve element is operated by a motor.
  • the valve may be provided with a means to display one or both of the cylinder pressure and the regulated pressure. However, preferably, it further comprises a single gauge for receiving and displaying both the cylinder pressure and the regulated pressure.
  • the present invention relates to an improvement to a valve with integrated pressure regulator (VIPR).
  • VIP valve with integrated pressure regulator
  • Such valves are known for use on cylinders or bottles of pressurised gas. Similar valves are also used in health care applications but have a pre-set pressure and adjustable volumetric flow output.
  • An example of a known valve is disclosed in EP 0747796 .
  • the improvement provided by the present invention is the introduction of a pilot regulator and the description below will focus on this and the manner in which it interfaces with the regulator and the shut off valve.
  • FIG. 1 provides a schematic layout of the arrangement while Figs. 3 and 4 show the integration of the various components shown in Fig. 1 into a practical housing.
  • Fig. 2 provides for the detail of the pilot regulator.
  • the shut-off valve 1 has a generally conventional construction. It comprises a shut-off valve element 2 urged onto a valve seat 3 by a spring 4. The shut-off valve element 2 and spring 4 are within a chamber which is exposed to a regulated pressure P1 as described in greater detail below. This pressure exerts a closing force on the shut-off valve element 2.
  • the shut-off valve element 2 is displaced from the valve seat 3 by the depression of a spindle 5 which is pushed downwardly by the operation of a lever (not shown) connected at opening 6 via an eccentric coupling which converts rotational movement of the lever into downward movement of the spindle 5.
  • the return spring 7 biases the spindle upwardly to assist in the closure of the valve.
  • the shut-off valve can alternatively be integrated into the high pressure region upstream of the regulator 10 and pilot regulator 30.
  • the regulated pressure P1 is created by a combination of the regulator 10 and pilot regulator 30 as described below.
  • Both the regulator 10 and the pilot regulator 30 receive high pressure gas at a pressure P2 which is the pressure within the cylinder to which the valve is connected.
  • the regulator 10 has a regulator element in the form of a piston 11 slidable within a regulator chamber 12. Alternatively, a flexible diaphragm or bellows could be used.
  • the chamber 12 has a stepped bore with a smaller diameter portion 13 on the high pressure side and a larger diameter portion 14 on the regulated pressure side.
  • the piston 11 has a correspondingly stepped construction with a smaller diameter portion 15 sealed by an O-ring 16 with the smaller diameter portion 13 of the chamber.
  • a larger diameter portion 17 of the piston 11 is sealed by an O-ring 18 with respect to a large diameter portion 14 of the chamber.
  • a bore 19 extends axially down the centre of the piston 11 connecting the high pressure side P2 of the regulator with the regulated pressure side P1 as described below.
  • a bleed port 20 is provided through the larger diameter portion 14 of the piston 11.
  • the bleed part 20 allows a flow of gas from the pilot pressure P3 to the lower regulated pressure P1 and enables the pilot control pressure to continuously vary.
  • the piston 11 is urged downwardly by a spring 21 urging a tapered lower end 22 towards a seat 23.
  • the chamber 12 above the piston 11 is connected to the pilot regulator 30 via a regulated pressure line 24 and is connected to the shut-off valve 1 via a regulated pressure outlet line 25.
  • the large diameter portion 14 of the regulator chamber 12 below the large diameter portion 17 of the piston 11 is provided with gas at a pilot pressure P3 via a line 26.
  • the downward force (using the orientation of Fig. 1 ) on the piston 11 is a combination of the spring force provided by spring 21 together with the pressure P1 acting on the available upwardly facing piston surface.
  • the upward force on the piston 11 is provided by a combination of the pilot pressure P3 on the downwardly facing surface of the piston and the cylinder pressure P2 on the downwardly facing portion of the smaller diameter portion 15 of the piston.
  • the pilot regulator 30 comprises a pilot regulator element in the form of a piston 31 which is housed in a pilot regulator chamber 32, the piston 31 is biased upwardly (in the orientation shown in Fig. 1 ) by a pilot regulator spring 33 and is biased in the opposite direction by a balancing spring 34.
  • the force balance on the piston 31 is adjustable via actuator stem 35 which bears against the top of balancing spring 34.
  • the net effect of the pilot regulator spring 33 is less than that of the balancing spring 34.
  • a downward force is exerted by the pressure P1 and an upward force by the pilot regulator spring 33.
  • the balancing spring 34 serves to reduce the net effect of the pilot regulator spring 33 and therefore provides a simple method of adjusting the overall force balance.
  • the actuator stem 35 is the means by which the user adjusts the regulated pressure P1 ultimately emitted from the cylinder and this is done using a very small force as described in greater detail below. This either makes the manual adjustment of the regulated pressure easier for a user or reduces the power consumption of any electronic actuation assembly.
  • a positive seat pilot regulator valve element 37 extends downwardly from the piston 31 and seats on a valve seat 38 which can be significantly smaller than the valve seat 23 of the regulator 10.
  • the positive seat pilot regulator valve element 37 passes through an O-ring seal 39 to seal the valve seat 38 from being exposed to atmospheric pressure. As a result of this, the region in the vicinity of the valve seat 38 is held at the pilot pressure P3 which is transmitted to the regulator along the pilot pressure line 26.
  • the piston 31 is therefore biased downwardly by a combination of the spring force from the balancing spring 34 and the relatively low regulated pressure P1 acting on the large piston surface 31. It is biased upwardly by a combination of the biasing force from the pilot regulator spring 33, atmospheric pressure on the lower surface of the piston 31 and the high cylinder pressure P2 acting on the positive seat pilot regulator valve element 37. Raising the actuator stem 35 opens the pilot regulator valve element 37. This causes P3 to rise, this increases the pressure beneath piston 11 lifting it and causing P1 to rise.
  • the pilot regulator valve element is significantly smaller than the smaller diameter portion 15 of the regulator 10 so that the surface area exposed to high pressure acting on the piston 31 is significantly less than the high pressure acting on the piston 11. As a result if this, the spring force required to bias the piston 31 can also be significantly reduced in comparison to a standard regulator construction.
  • valve elements in the regulator and pilot regulator could be reverse seat valves
  • the pistons in the regulator and pilot regulator could be replaced by a diaphragm or bellow
  • the shut-off valve could be an upstream valve.
  • shut off valve 1 This latter arrangement is illustrated in Fig. 11 .
  • the three components, namely the shut off valve 1, regulator 10 and pilot regulator 30 are the same as previously described. The only difference is that the shut off valve is now upstream of the regulator 10 and pilot regulator 30.
  • the pilot regulator 30 operates in exactly the same manner as before and the various chambers are exposed to the same temperatures. The only difference is that they receive the high pressure cylinder gas downstream of the shut-off valve 1. While the structure of the shut off valve remains unchanged, the shut-off valve element 2 is now exposed to the cylinder pressure P2 rather than the regulator pressure P1. However, gas at regulator pressure P1 is emitted to the downstream equipment as before.
  • Figs. 5 to 7 show the manner in which the previously described valve is integrated into an electromechanically actuated device.
  • the regulator 10 and pilot regulator 30 are as previously described.
  • the actuator stem 35 is provided with a screw thread and is connected to a motor such as a small brushed DC motor.
  • the motor is controlled by a control system comprising a power supply 41 such as a battery, a memory 42, a means of transmission 43 which may be a wired connection or any known wireless connection, a receiver 44 which again may have a physical connection or be wireless and a processor 45.
  • a control module 46 which is connected to the housing for the cylindrical valve.
  • Fig. 6 shows a use of the arrangement shown in Fig. 5 .
  • the control module 46 is attached to a cylinder C.
  • the means of transmission 43 and receiver 44 can communicate with process equipment 47 to make necessary adjustments to the actuator stem 35 of the pilot regulator 30 to control the pressure of gas supplied to the process equipment 47 along line 48.
  • This system may also include pressure sensors in the line 48 and/or process equipment 47.
  • Communications devices 49 are in two way communication with the control module 46 to allow a user to monitor and control the output from the cylinder C.
  • FIG. 7 A variation of this second implementation is shown in Fig. 7 in which two cylinders C supply gas along gas supply lines 48 to a mixing buffer which can supply a mixture of gas to process equipment 47 via a mixing buffer 50.
  • the control modules 46 on the cylinders C are controlled to supply gas in the correct ratios to the mixing buffer 50.
  • Figs. 8 to 10C show an arrangement of a gauge G which is particularly suited to use with the present invention.
  • the gauge is designed to display to the user both the cylinder pressure P2 and the regulated pressure P1 on a single gauge.
  • a cylinder pressure inlet 60 in the gauge G is in communication with one of the gas paths that is at the cylinder pressure P2.
  • a regulated pressure inlet 61 is in communication with one of the paths at the regulated pressure P1.
  • the high pressure inlet 60 leads to a high pressure bourdon tube 62 which leads to a high pressure needle 63 to indicate on a high pressure scale 64 the level of the high pressure P2.
  • a number of high pressure gauges are shown in Figs. 10A - 10C .
  • the regulated pressure inlet 61 is connected to a low pressure bourdon tube 65 connected via a linkage 56 and rack and pin mechanism 67 to a regulated pressure needle 68 which displays the level of the regulated pressure to a user on a regulated pressure scale 69, again as shown in Figs. 10A to 10C .
  • a digital display may be used. It would be appreciated, however, that the dial provides a convenient and compact way of displaying both pressures to a user.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Fluid Pressure (AREA)

Claims (7)

  1. Soupape de cylindre avec un régulateur de pression intégré, la soupape comprenant un logement contenant :
    un élément de soupape d'arrêt (2) pour commander le flux de gaz provenant d'une sortie (8) de la soupape ;
    un régulateur (10) pour réduire la pression (P2) de gaz provenant d'un cylindre (C) auquel la soupape est fixée, en utilisation ; et caractérisée par
    un régulateur pilote (30) pouvant être commandé par l'intermédiaire d'un actionneur (35) pour régler la pression (P1) à laquelle le régulateur (10) délivre du gaz à la sortie (8) de la soupape, dans lequel le régulateur pilote (30) a un orifice d'entrée en communication avec du gaz haute pression (P2) provenant du cylindre (C) et un élément de soupape pilote (31) sollicité vers l'orifice d'entrée pour commander le flux de gaz à travers l'orifice d'entrée, un élément de sollicitation (33) fournissant une force de sollicitation sur l'élément de soupape pilote (31) et pouvant être ajusté par l'actionneur (35) pour commander la pression (P3) du gaz pilote traversant l'orifice d'entrée vers le régulateur.
  2. Soupape selon la revendication 1, dans laquelle le régulateur pilote (30) a un élément de soupape d'assise positive (37).
  3. Soupape selon la revendication 1, dans laquelle l'élément de sollicitation (33) est agencé pour solliciter l'élément de soupape pilote (31) ouvert tandis qu'un élément de sollicitation d'équilibrage (34) est positionné entre l'actionneur pilote (35) et l'élément de soupape pilote (31) pour fournir une force opposée sur l'élément de soupape pilote (31).
  4. Soupape selon la revendication 1 ou la revendication 3, comprenant en outre un moteur (40) pour déplacer l'élément de soupape pilote (31).
  5. Soupape selon la revendication 4, comprenant en outre un système de commande pour commander le fonctionnement du moteur (40), le système de commande incluant un émetteur (43) et un récepteur (44) pour recevoir et transmettre des données concernant la commande de l'élément de soupape pilote (31).
  6. Soupape selon l'une quelconque des revendications précédentes, comprenant en outre une jauge unique (G) pour recevoir et afficher à la fois la pression de cylindre (P2) et la pression régulée (P1).
  7. Cylindre (C) de gaz sous pression (P2) avec une soupape selon l'une quelconque des revendications précédentes.
EP16712383.5A 2015-03-31 2016-03-31 Soupape de cylindre ayant un régulateur de pression intégré Active EP3278007B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB1505509.8A GB201505509D0 (en) 2015-03-31 2015-03-31 A cylinder valve with integrated pressure regulator
PCT/EP2016/057116 WO2016156519A1 (fr) 2015-03-31 2016-03-31 Soupape de cylindre ayant un régulateur de pression intégré

Publications (2)

Publication Number Publication Date
EP3278007A1 EP3278007A1 (fr) 2018-02-07
EP3278007B1 true EP3278007B1 (fr) 2021-04-28

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EP16712383.5A Active EP3278007B1 (fr) 2015-03-31 2016-03-31 Soupape de cylindre ayant un régulateur de pression intégré

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EP (1) EP3278007B1 (fr)
AU (1) AU2016239671B2 (fr)
CA (1) CA2981101A1 (fr)
GB (1) GB201505509D0 (fr)
WO (1) WO2016156519A1 (fr)

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AU2016239671A1 (en) 2017-10-19
CA2981101A1 (fr) 2016-10-06
GB201505509D0 (en) 2015-05-13
WO2016156519A1 (fr) 2016-10-06
AU2016239671B2 (en) 2021-04-15
EP3278007A1 (fr) 2018-02-07

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