EP3002499B1 - Ventilverschlussvorrichtung durch betätigung eines druckminderventils - Google Patents

Ventilverschlussvorrichtung durch betätigung eines druckminderventils Download PDF

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Publication number
EP3002499B1
EP3002499B1 EP15175993.3A EP15175993A EP3002499B1 EP 3002499 B1 EP3002499 B1 EP 3002499B1 EP 15175993 A EP15175993 A EP 15175993A EP 3002499 B1 EP3002499 B1 EP 3002499B1
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EP
European Patent Office
Prior art keywords
expansion
chamber
fluid
piston
counter
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Application number
EP15175993.3A
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English (en)
French (fr)
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EP3002499A1 (de
Inventor
Eric Thouvenin
Vincent MOUCHEL
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Cahouet
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Cahouet
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    • 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
    • F17C2205/0329—Valves manually 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
    • F17C2205/0323—Valves
    • F17C2205/0335—Check-valves or non-return 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
    • F17C2205/0341—Filters
    • 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
    • F17C2205/035—Flow reducers
    • 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
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/011—Oxygen
    • 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
    • F17C2221/016—Noble gases (Ar, Kr, Xe)
    • 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
    • F17C2221/018—Acetylene
    • 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
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • 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
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/01—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the phase
    • F17C2225/0107—Single phase
    • F17C2225/0123—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
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/04—Methods for emptying or filling
    • F17C2227/048—Methods for emptying or filling by maintaining residual 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
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/04—Reducing risks and environmental impact
    • F17C2260/042—Reducing risk of explosion
    • 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
    • F17C2270/02—Applications for medical applications
    • F17C2270/025—Breathing
    • 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
    • F17C2270/05—Applications for industrial use

Definitions

  • the present invention relates to the expansion of fluids and more particularly the expansion devices incorporating a closure valve.
  • a single-stage fluid expansion device generally comprises a chamber provided with a fluid inlet port and a fluid outlet port. Such a device is known to EP0811900 A1 .
  • the movable piston in the chamber comprises a substantially disk-shaped portion which separates the chamber into two volumes forming, for one, a relaxation chamber and, for the other, a counter-expansion chamber.
  • the piston also comprises a portion having a free end which projects into the expansion chamber and which is provided with a sealing member, such as an elastomeric buffer, capable of closing off the fluid inlet port.
  • a channel drilled in the projecting portion connects the relaxation chamber and the counter chamber.
  • a helical return spring extends from a wall of the expansion chamber to the disc-shaped portion of the piston and urges the piston to oppose the effect of pressure in the counter chamber. relaxation and thus maintain the port of arrival of open fluid.
  • the force exerted by this return spring is calibrated and defines the pressure at the outlet of the expansion device.
  • shutoff valve of the fluid supply Upstream of the arrival port of the expansion device is often connected a shutoff valve of the fluid supply. It has been envisaged to implant the valve in the body of the expansion device but this considerably increases the weight and volume of the expansion device. Normative requirements, in particular relating to the capacity of the tap to be able to cut off the supply of fluid when the device is subjected to a torch flame, for example (so-called "flame exposure test”), require the use of materials expensive, fire resistant and contribute to increase and increase the size of a device that integrates these two functions.
  • An object of the invention is to reduce the size and weight of a fluid expansion device incorporating a function of cutting the fluid supply.
  • the movable element comprises a piston defining the movable wall of the counter-expansion chamber.
  • the movable element comprises a cylinder resting on a membrane.
  • a membrane expansion device can be implemented for applications in which the use of a membrane is required.
  • the displacement means of the inner portion of the movable element comprise an elastic element.
  • the force bringing the inner portion of the piston in the closed position is calibrated by the elastic element which limits the possibility that the user applies an excessive force on the internal portion likely to damage the arrival port.
  • the sensitivity of closure to aging is reduced. Indeed, the closing forces at the sealing member are almost constant and insensitive to variations in upstream and downstream pressures, which allows to implement the invention to a wide range of pressures (downstream pressure plus high) or relaxation (piston of larger diameter).
  • the invention also relates to an integrated pressure regulator valve assembly comprising a device previously defined and which further comprises a secondary expansion stage installed downstream of the expansion device.
  • the valve assembly with built-in expansion valve comprises a body 2 provided with a threaded end 3 adapted to be screwed onto a reservoir of a fluid such as a gas, which may be derived from a bottle of medicalized oxygen.
  • the end 3 comprises a bore 4 supplying a fluid inlet port 5 which opens into an expansion chamber 6.
  • the expansion chamber 6 comprises a first cylindrical section 6.1 into which the bore 4 opens and which opens into a second section 6.2.
  • the second section 6.2 comprises an annular portion surrounding a portion of the first section 6.1 delimiting therewith a tubular step 7 projecting from an annular surface 27 in the second section 6.2.
  • the second section 6.2 of the expansion chamber 6 opens into a bore 8 of diameter greater than that of the second section 6.2.
  • An outlet channel 9 connects a fluid outlet 10 expanded with an outlet port 11 opening into the bore 8.
  • a last bore 14 is formed from the face of the body 2 opposite the supply port 5 to open into the bore 8.
  • the sections 6.1 and 6.2 of the expansion chamber 6, the bore 8 and the bore 14 are, here, coaxial.
  • the bore 8 receives a disk 12 whose opposite face to the bore 14 defines a volume 13 in communication with the section 6.2 of the expansion chamber 6.
  • the outer portion 21 of the piston 20 comprises a peripheral groove 23 which accommodates an O-ring 24 sealing between the outer portion 21 of the piston 20 and the wall of the second section 6.2 of the expansion chamber 6.
  • a helical spring 26 is mounted in the second section 6.2 of the expansion chamber 6. The spring 26 has a first end 25 bearing against the annular surface 27 projecting from which the tubular step 7 extends and a second end 28 bearing on the outer portion 21 of the piston 20 so that the spring 26 pushes the piston 20.
  • the inner portion 22 of the piston 20 comprises a first end 22.1 engaged in the first tr member 6.1 of the expansion chamber 6 and a second end 22.2 engaged in a bore 21.1 of the outer portion 21.
  • the two ends 22.1 and 22.2 of the inner portion 22 of the piston 20 respectively comprise grooves 29 and 30 respectively receiving an O-ring 31 and 32.
  • the connection between the inner portion 22 and the wall of the first section 6.1 of the expansion chamber 6 and the connection between the inner portion 22 and the outer portion 21 of the piston 20 are sealed.
  • the outer portions 21 and inner 22 define with the disk 12 a counter-expansion chamber 40 which comprises in particular the volume 13.
  • the end 22.1 of the inner portion 22 also comprises a sealing member, here a buffer 33 of elastomeric material or plastic facing the fluid inlet port 5.
  • a first end of an axial channel 34 extending longitudinally in the inner portion 22 feeds a radial duct which is formed transversely in the inner portion 22, between the buffer 33 and the seal 31, so that the radial duct opens into the first section 6.1 of the expansion chamber 6.
  • the other end of the axial channel 34 opens at the end 22.2 of the inner portion 22 in the counter-expansion chamber 40 and thus connects the expansion chamber 6 and against expansion chamber 40.
  • the inner portion 22 also comprises an annular protrusion 35 on which rests the first end of a helical spring 36 having a second end bearing on a front face of the tubular step 7.
  • the spring 36 is a section - and therefore a stiffness - lower than the section of the spring 26 and pushes the inner portion 22 against a shoulder 37 of the outer portion 21.
  • the piston 20 can therefore move in the expansion chamber 6 between a fluid supply position represented in FIG. figure 1 wherein the inner portion 22 discovers the arrival port 5 and feeds the back flash chamber 40 with fluid to a fluid isolation position shown in FIG. figure 2 in which the inner portion 22 closes the arrival port by contacting the buffer 33 with the arrival port 5 and thus fluidly isolates the counter-chamber 40 of the arrival port 5.
  • the counter-expansion chamber 40 thus has a movable wall defined by the surface of the piston 20 facing the disk 12.
  • a lever-cam assembly 15 is housed in the bore 14.
  • the disc 12 comprises a central bore 50 opening into the volume 13 and whose diameter is substantially equal to that of the inner portion 22.
  • the bore 50 accommodates a cylindrical stud 51 projecting from the plate 52 of a pusher 53 extending into the bore 14.
  • the pin 51 comprises a groove 54 receiving an O-ring 55 bearing against the walls of the bore 50.
  • a coil spring 56 extends between the plate 52 and an inner surface 57 of a cap 58. This cap 58 is immobilized in the bore 14 by means of a clip 60 cooperating with a countersink 59 and which extends in two bores made perpendicularly to the cutting plane .
  • the end 61 of the pusher 53 opposite the stud 51 projects from the body 2 and comprises a circumferential groove 62.
  • a lever 63 is articulated around an axis 64 radially crossing the end 61 of the pusher 53.
  • the lever 63 is provided with a holding system comprising a ball 65 constrained by a spring 66 to cooperate with the groove 62 and which allows the selective locking of the lever 63 in a first position (represented in FIG. figure 1 ) or a second position (represented in figure 3 ) corresponding to a rotation of the lever 63 of 180 ° about the axis 64.
  • the pressurized fluid enters the inlet port 5 in the first section 6.1 of the expansion chamber 6 and circulates through the channel 34 to invade the counter-expansion chamber 40.
  • the pressure in the counter-expansion chamber 40 is greater than the force exerted by the spring 26 on the outer portion 21 against this pressure, the inner 22 and outer 21 portions of the piston 20 move from the position of full opening of the arrival port 5 (represented in figure 1 ), to a closing position of the arrival port 5 (shown in FIG. figure 2 ).
  • the pressures respectively in the first section 6.1 of the expansion chamber 6 and in the counter-expansion chamber 40 are equal to the expansion pressure.
  • the equipment to be supplied connected to the output 10 then receives the relaxed pressure.
  • the pressure in the first section 6.1 of the expansion chamber 6 and in the counter-expansion chamber 40 decreases as the consumption of fluid expanded by the equipment connected to the output 10 to reach a value insufficient to counter the return force of the spring 26 which then returns the piston 20 to the fully open position of the arrival port 5 ( figure 1 ). A new relaxation cycle can then begin.
  • the expansion device 1 according to the invention has several advantages over existing solutions.
  • the force exerted by the inner portion 22 on the arrival port 5 is calibrated and defined by the spring 56, the device according to the invention thus preserves the arrival port and ensures a good durability of the seal of this- ci in closed position.
  • the effort required to open the fluid supply is more important than the effort required to cut off the power supply.
  • the lever is more inclined to adopt a power cut-off position or to remain in the power-off position, except in the zone of full opening where the lever is maintained. by a truncation in the cam. It is possible to realize the lever in a fuse material, such as a synthetic material, whose cast iron will release the spring 56 and bring the inner portion 22 in the closed position of the arrival port 5.
  • the normative requirements of the test are they automatically insured?
  • the particular arrangement of the expansion stages and the closing device of the arrival port reduces the path of the high pressure and prohibits any adiabatic compression phenomenon associated with an opening too fast valve especially in use with oxygen. This further increases the security of the device.
  • a medical version may also be provided with a flow limiter 82 located upstream of the filter 74 and a pressure outlet 83.
  • thermal sparkers such as thermal sparkers, pressure relief valve and / or non-return can also be provided.
  • the integrated pressure regulator valve assembly comprises a body 2 provided with a bore 4 supplying a fluid inlet port 5 which opens into an expansion chamber 6.
  • the expansion chamber 6 comprises a first cylindrical section 106.1 in which the bore 4 opens and which is in fluid communication via a bore 107 with a second section 106.2 of the expansion chamber 6.
  • a release 10 of the expanded fluid opens into the second section 106.2 of the chamber of relaxation.
  • the end of the bore 107 opening into the first section 106.1 of the expansion chamber 6 comprises a flared portion 108.
  • the portion 109 of the second section 106.2 of the expansion chamber 6 facing the bore 107 is closed sealed by a membrane 110, here rubber, comprising a central pellet 111 rigid.
  • a cylinder 112 bears on the central pellet 111 and protrudes into the second portion 106.2 of the expansion chamber 6. This cylinder 112 comprises a transverse wall 112.1 facing the membrane 110.
  • a cylindrical piston 120 forming a movable element, slidably extends into the expansion chamber 6 through the bore 107 and includes a first end 120.1 extending into the first portion 106.1 of the expansion chamber 106.
  • first end 120.1 of the piston 120 comprises a conical section 121 provided with a circular groove 122 for receiving an O-ring 123.
  • the second end 120.2 of the piston 120 slidably traverses the transverse wall 112.1.
  • the piston 120 comprises an axial channel 34 opening radially along a first channel 125 at the base of the conical section 121 and along a second radial channel 126 at the second portion 106.2 of the expansion chamber. 6.
  • the channel 34 also opens, at the second end 120.2 of the piston 120 into a cavity 127 defined by the cylinder 112, the transverse wall 112.1 and the central pellet 111.
  • the second end 120.2 of the piston 120 also comprises a washer 128 extending radially in the cavity 127. The washer 128 provides an abutment of the piston 120 against the transverse wall 112.1.
  • the first and second portions 106.1 and 106.2 of the expansion chamber 6, the bore 107, the piston 120, the cylinder 112, the pellet 111 and the membrane 109 are coaxial.
  • the wall 112.1 then defines a movable wall-because of the flexibility of the membrane 109 of a counter-expansion chamber 40 comprising an outer portion, namely the wall 112.1 and an inner portion, namely the piston 120, mounted coaxially .
  • the piston 120 can take two positions: a first position represented in figure 5 in which the conical section 121 of the piston 120 cooperates with the flared portion 108 of the bore 120.
  • This flared portion 108 serves as a seat for the conical section 121 against which the O-ring 123 is compressed, thus isolating fluidically from the port of arrival 5, the second portion 106.2 of the expansion chamber 6 and the counter-expansion chamber 40.
  • the first channel 125 is no longer supplied by the fluid dispensed by the bore 4 in the first portion of the chamber relaxing 106.1.
  • the second position of the piston 120 is represented in figure 6 and corresponds to a position in which the conical section 121 of the piston 120 is no longer in contact with the flared portion 108 of the bore 107. In this position, the fluid distributed in the first portion 106.1 of the expansion chamber 6 by the bore 4 is conveyed to the counter chamber of relaxation 40 by the succession of channels 124-125 and 126. Pressure balancing of the space 127 is also realized.
  • the integral pressure regulator valve assembly 1 also includes a cylindrical hood 129 facing the surface of the membrane 109 opposite to that defining the cavity 127 and defining a volume 130.
  • a coil spring 26 is mounted in the volume 130 and has a first end 25 bearing against a transverse surface 131 of the cover 129 and a second end 28 bearing on the central pellet 111 of the membrane 110 so that the spring 26 pushes the pellet 111 and the cylinder 112.
  • a second coil spring 36 extends in the cavity 127 between the pellet 111 and the washer 128.
  • the spring 36 is of a section - and therefore of a stiffness - less than the section of the spring 26 and pushes the washer 128 against the wall 112.1.
  • a lever-cam assembly 15 controls the movement of a pusher 132 between a supply position of the fluid counter-chamber 40 shown in FIG. figure 6 (first position of the lever 15) and a fluid isolation position of the counter-expansion chamber 40 shown in FIG. figure 5 (second position of the lever 15).
  • the lever-cam assembly releases the action of a helical spring 56 which bears on the first end 120.1 of the piston 120 and therefore moves it independently of the wall 112.1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Control Of Fluid Pressure (AREA)
  • Fluid-Damping Devices (AREA)

Claims (7)

  1. Vorrichtung (1) zur Druckminderung eines Fluids, wobei die Vorrichtung eine Druckminderungskammer (6) umfasst, die mit einer Eintrittsöffnung (5) und mit einer Austrittsöffnung (11) versehen ist, ein bewegliches Element (20), das in der Druckminderungskammer (6) zwischen einer Fluidversorgungsposition und einer Fluidabsperrposition einer Gegen-Druckminderungskammer (40) verschiebbar ist, welche eine bewegliche Wand hat, die mit dem beweglichen Element (20) verbunden ist, wobei das bewegliche Element (20) einen Kanal (34) umfasst, der die Druckminderungskammer (6) und die Gegen-Druckminderungskammer (40) verbindet, dadurch gekennzeichnet, dass:
    - die bewegliche Wand der Gegen-Druckminderungskammer (40) einen Außenabschnitt (21) und einen Innenabschnitt (22) umfasst, der koaxial zum Außenabschnitt (21) angebracht ist, um sich von der Versorgungsposition, in der der Innenabschnitt (22) die Gegen-Druckminderungskammer mit Fluid versorgt, in Richtung der Fluidabsperrposition zu verschieben, in der der Innenabschnitt (22) die Gegen-Druckminderungskammer von der Eintrittsöffnung fluidmäßig isoliert;
    - Verschiebungsmittel (15) zum Verschieben des Innenabschnittes (22) in Richtung der Schließposition ausgebildet sind, um auf den Innenabschnitt (22) unabhängig von dem Außenabschnitt (21) einzuwirken;
    - ein erstes elastisches Element (26) ausgebildet ist, um den Außenabschnitt (21) entgegen einem Druck in der Gegen-Druckminderungskammer (40) zurückzustoßen;
    - Anschlagmittel (35, 37) zwischen dem Innenabschnitt (22) und dem Außenabschnitt (21) derart angeordnet sind, dass sie zusammenwirken, wenn der Außenabschnitt (21) unter der Wirkung eines Druckes in der Gegen-Druckminderungskammer (40) verschoben wird.
  2. Vorrichtung (1) zur Druckminderung eines Fluids nach Anspruch 1, bei der das bewegliche Element (20) einen Kolben (20) umfasst, der die bewegliche Wand der Gegen-Druckminderungskammer (40) definiert.
  3. Vorrichtung (1) zur Druckminderung eines Fluids nach Anspruch 1, bei der das bewegliche Element (20) einen Zylinder (112.1) in Anlage an einer Membran (110) umfasst.
  4. Vorrichtung (1) zur Druckminderung eines Fluids nach Anspruch 1, bei der die Verschiebungsmittel (15) zum Verschieben des innenabschnittes (22) des Kolbens (20) ein elastisches Element (56) umfassen.
  5. Vorrichtung (1) zur Druckminderung eines Fluids nach Anspruch 1 oder 2, bei der die Verschiebungsmittel (15) einen Hebel (63) umfassen, der einen Nocken betätigt.
  6. Vorrichtung (1) zur Druckminderung eines Fluids nach Anspruch 1, bei der der Innenabschnitt (22) des Kolbens (20) durch ein zweites elastisches Element (36) in Anlage an den Außenabschnitt (21) des Kolbens (20) gebracht wird.
  7. Ventilanordnung (70) mit integriertem Druckminderer, umfassend eine Vorrichtung (1) nach einem der vorhergehenden Ansprüche, wobei die Anordnung (70) eine sekundäre Druckminderungsstufe (71) umfasst, die stromabwärts der Druckmindervorrichtung (1) installiert ist.
EP15175993.3A 2014-07-28 2015-07-09 Ventilverschlussvorrichtung durch betätigung eines druckminderventils Active EP3002499B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1457305A FR3024204B1 (fr) 2014-07-28 2014-07-28 Dispositif de fermeture de vanne par actionnement du clapet de detente

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EP3002499A1 EP3002499A1 (de) 2016-04-06
EP3002499B1 true EP3002499B1 (de) 2018-10-24

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017007628A1 (de) 2017-08-12 2019-02-14 Hydac Technology Gmbh Sicherheitssystem
LU100957B1 (en) 2018-10-11 2020-04-14 Luxembourg Patent Co Gas pressure reducer with cam commanded shut-off valve
LU100958B1 (en) * 2018-10-11 2020-04-14 Luxembourg Patent Co Gas pressure reducer with integrated shut-off valve
US20230044925A1 (en) * 2021-08-04 2023-02-09 Lincoln Global, Inc. Valve with integrated pressure regulator

Family Cites Families (5)

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Publication number Priority date Publication date Assignee Title
FR2749641B1 (fr) * 1996-06-05 1998-08-21 Taema Ensemble de commande et de distribution de gaz pour reservoir de gaz sous haute pression
US7089956B1 (en) * 2003-11-14 2006-08-15 Gilbert Davidson Portable gas delivery device with impact protection
AU2005266063B2 (en) * 2004-07-21 2011-04-28 African Oxygen Limited Multifunctional valve unit
GB201012154D0 (en) * 2010-07-20 2010-09-01 Linde Ag Closure device
LU91946B1 (fr) * 2012-02-20 2013-08-21 Luxembourg Patent Co Detendeur avec volant de fermeture et de mise en service

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Also Published As

Publication number Publication date
FR3024204B1 (fr) 2016-07-15
FR3024204A1 (fr) 2016-01-29
EP3002499A1 (de) 2016-04-06

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