WO2015173229A1 - Soupape de décharge de pression - Google Patents

Soupape de décharge de pression Download PDF

Info

Publication number
WO2015173229A1
WO2015173229A1 PCT/EP2015/060452 EP2015060452W WO2015173229A1 WO 2015173229 A1 WO2015173229 A1 WO 2015173229A1 EP 2015060452 W EP2015060452 W EP 2015060452W WO 2015173229 A1 WO2015173229 A1 WO 2015173229A1
Authority
WO
WIPO (PCT)
Prior art keywords
actuator
valve
housing
pressure relief
pressure
Prior art date
Application number
PCT/EP2015/060452
Other languages
German (de)
English (en)
Inventor
Eike Willers
Alexander Hoser
Alexander Link
Kryszstof Kurowski
Original Assignee
Otto Egelhof Gmbh & Co. Kg
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Otto Egelhof Gmbh & Co. Kg filed Critical Otto Egelhof Gmbh & Co. Kg
Publication of WO2015173229A1 publication Critical patent/WO2015173229A1/fr

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/002—Actuating devices; Operating means; Releasing devices actuated by temperature variation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/22—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution
    • F16K3/24—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/003—Actuating devices; Operating means; Releasing devices operated without a stable intermediate position, e.g. with snap action
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
    • F16K31/1221—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston one side of the piston being spring-loaded
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
    • F16K31/124—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston servo 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
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/04—Arrangement or mounting of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/056—Small (<1 m3)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/058—Size portable (<30 l)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0612—Wall structures
    • F17C2203/0614—Single wall
    • F17C2203/0617—Single wall with one layer
    • 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
    • F17C2205/0382—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
    • F17C2221/012—Hydrogen
    • 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
    • F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
    • 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
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0404—Parameters indicated or measured
    • F17C2250/0439—Temperature
    • 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
    • F17C2260/02—Improving properties related to fluid or fluid transfer
    • F17C2260/021—Avoiding over pressurising
    • 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
    • F17C2260/02—Improving properties related to fluid or fluid transfer
    • F17C2260/023—Avoiding overheating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/32—Hydrogen storage

Definitions

  • the invention relates to a pressure relief valve, in particular for opening a discharge opening in a pressure vessel, which is filled with a pressurized gaseous or liquid medium.
  • a pressure relief valve which is provided for opening a discharge opening in a pressure vessel which is filled with a pressurized medium.
  • This pressure relief valve has a housing with an inlet and an outlet, which are connected to a passage opening.
  • a valve seat In the passage opening a valve seat is arranged, which can be closed by a valve element in a starting position. This starting position is supported by a control element.
  • the valve element lying opposite a thermal actuator is provided from a shape memory alloy, which causes a setting movement to the valve element when a predetermined activation temperature is exceeded, so that it is transferred from the starting position to the end position and opens the valve seat, so that in the pressure vessel under pressure Medium can flow through the outlet.
  • the thermal actuator is designed as a leaf spring element, which remains irreversible after an activation temperature in a valve member opening position.
  • the adjusting movement of the valve element takes place counter to the outflow direction of the effluent from the pressure vessel medium, so that in this pressure relief valve, a pressure relief at an overpressure occurs by the bursting of a membrane in the valve element.
  • a pressure relief valve which likewise comprises a thermal actuator made of a shape memory alloy, which causes an actuating movement on the valve element when a predetermined activation temperature is exceeded.
  • the invention has for its object to provide an improved pressure relief valve, which allows both a thermal release mechanism and a trigger mechanism at an overpressure in the pressure vessel, in particular independently.
  • the pressure relief valve comprises a connectable to a pressure vessel housing having an inlet and an outlet, which are connected by a passage opening, wherein the passage opening is closable with a valve element and can be transferred from a starting position into an end position with an actuatable valve element, which at least a thermal actuator made of a shape memory alloy and at least one adjusting element which counteracts an actuating movement of the thermal actuator, wherein when exceeding or falling below a predetermined activation temperature of the thermal actuator, the thermal actuator controls an actuating movement of the valve element from the starting position to the end position and the valve element is disposed in the transferred end position irreversible to the starting position.
  • the actuator of the pressure relief valve further comprises an actuator housing having a housing wall, on which a passage opening is provided, which is closable with a valve closure member of a valve of the actuator, wherein the thermal actuator and the actuator engage the valve closure member of the valve of the actuator.
  • This actuator can be arranged as an independent unit directly to the housing of the pressure relief valve or separately from this at a remote location, for example as a remote sensor, be provided.
  • the valve of the actuator is operatively connected via a pressure chamber in the housing of the pressure relief valve with the valve element, which opens and closes the passage opening in the housing.
  • a pressure chamber has the advantage that it acts with respect to an opening movement of the valve element blocking, provided that the pressure chamber is completely filled with fluid, but allows an adjusting movement in the opening direction of the valve element, as soon as the fluid has flowed out of the pressure chamber via the actuator.
  • the valve is actuated in the actuator by the thermal actuator and / or the actuator in the actuator. As a result, a temperature and / or pressure-induced release mechanism is given, since both the thermal actuator and the actuator engage the valve.
  • a once opened pressure relief valve remains open, so that a complete discharge of a medium from the pressure tank is ensured.
  • the valve element opens the discharge opening of the pressure tank or the passage opening between an inlet and an outlet of the pressure vessel, without this opening movement, in particular the transfer from the initial position to the end position, is locked by the actuator.
  • a first embodiment of the pressure relief valve provides that the at least one actuator and the at least one actuating element engage directly on the valve element and for capturing the irreversible end position of the valve element, a blocking element or a detent is provided on or in the housing, which is an actuating movement of the valve element of the End position locks in the initial position.
  • valve element If an increase in pressure in the pressure vessel, the valve element is also transferred by the pressure increase in the end position or an open position, since the actuator is designed so as to hold the valve element only to a predetermined pressure in the pressure vessel in a starting position - in particular closed position.
  • a wall portion of the locking member in particular a pawl, is arranged, which is traversed by a guide portion of the valve element in an adjusting movement of the valve element.
  • the locking member locks the adjusting movement in the opposite direction, so that thereby the valve element is held irreversibly in the end position.
  • a locking or latching of the guide portion of the actuating element in the housing can take place after taking an end position.
  • the actuator housing of the actuator preferably has a rear wall which lies opposite the housing wall facing the pressure chamber.
  • the at least one actuator and the at least one adjusting element are arranged between the rear wall and the housing wall.
  • the actuator housing is attached to the housing in particular detachably, wherein between the valve element on the one hand and the housing wall of the actuator housing on the other hand, the pressure chamber is formed.
  • the pressure chamber can be formed on the housing wall of the actuator, whereby a simple structure is made possible.
  • the fluid in the pressure chamber preferably flows through the valve of the actuator housing via an outlet opening in the actuator housing. This activates the safety function via the thermal actuator in the actuator.
  • connection line can be connected to the pressure chamber, which leads at least to a sensor arranged separately from the housing, in particular a thermally actuatable valve.
  • a further operating parameter can be interrogated and recorded in order to optionally generate a pressure relief in the pressure chamber and to control an actuating movement of the valve element for discharging the medium in the pressure vessel.
  • the pressure chamber is formed by the housing with a rear wall arranged thereon and to the pressure chamber a connecting line can be connected, which is in communication with the actuator or a sensor, in particular temperature-sensitive sensor.
  • the pressure relief valve is controlled exclusively via separate from the pressure relief valve operating parameters via a so-called remote sensor - ie the actuator.
  • a further preferred embodiment of the invention provides that the valve element has a pressure surface facing the pressure chamber, which is larger than the piston surface, which closes the passage opening in the housing. Thereby, a translation of the pressure force can be generated, so that the valve element can be kept closed with a low pressure in the pressure chamber as in the pressure vessel.
  • gear ratios of 1: 5 or greater are provided, that is, the pressure surfaces of the piston chamber are five times as large or larger than the piston area of the valve element in the passage opening.
  • a compression spring is preferably provided, which acts upon transfer of the valve element from the starting position into the end position.
  • This compression spring is designed to reduce or compensate for a frictional force between the valve seat at the passage opening and the piston of the valve element, so that the opening movement of the valve element by the pressure conditions in the pressure chamber on the one hand and in the pressure vessel on the other hand serve to control an opening movement of the valve element ,
  • the pressure chamber is preferably filled with an incompressible fluid, preferably water, glycol or a mixture of water and glycol.
  • the pressure surface of the valve element and the pressure ring surface of the actuator are aligned perpendicular to the longitudinal axis of the valve element.
  • a cylindrical pressure chamber is formed and created geometrically simple conditions.
  • the pressure surface and the pressure ring surface are inclined to the longitudinal axis of the valve element and thereby a hollow conical pressure chamber is formed. This configuration allows the pressure relief valve requires a smaller space.
  • the actuator which is connectable to the pressure relief valve, preferably comprises an actuator housing with at least one thermal actuator and at least one actuating element which acts on a valve closure member of the valve of the actuator, wherein a valve seat is provided on a housing wall of the actuator housing, which is closed by the valve closure member is.
  • the actuator forms an independent actuator module, which can be tested separately for its functionality and the predetermined tripping values for its functionality.
  • an adjusting element is arranged on the actuator housing in order to set a travel of the thermal actuator between the valve closing member and the adjusting element and a biasing force of the adjusting element between the pressure surface of the actuator housing and the adjusting element to a predetermined activation temperature.
  • FIG. 1 shows a schematic sectional view of a pressure relief valve in the closed state
  • FIG. 2 shows a schematic sectional view of the pressure relief valve according to FIG. 1 in the opened state
  • FIG. 3 shows a schematic sectional view of an alternative embodiment of the pressure relief valve in FIG. 1 in the opened state
  • FIG. 4 shows a schematic sectional view of the pressure relief valve according to FIG. 3 in the opened state
  • FIG. 5 shows a schematic sectional view of a further alternative embodiment of the pressure relief valve in FIG. 3 in the closed state
  • Figure 6 is a schematic sectional view of another alternative embodiment of the pressure relief valve in Figure 1 in the closed state and
  • Figure 7 is a schematic sectional view of another alternative embodiment of the pressure relief valve in Figure 1 in the open state.
  • FIG. 1 shows a schematic sectional view of a first embodiment of a pressure relief valve 11 according to the invention.
  • FIG. 2 shows this pressure relief valve in an opened state.
  • This pressure relief valve 11 is provided for connection to a discharge opening 12 of a pressure vessel 14.
  • a pressure vessel 14 may be, for example, high-pressure tanks which store, for example, gases, in particular hydrogen or natural gas.
  • gases in particular hydrogen or natural gas.
  • the pressure relief valve 11 is used.
  • the pressure relief valve 11 comprises a housing 16, which comprises an inlet 17 and an outlet 18, which are connected to a passage opening 19 for the passage of a medium, which is stored in the pressure tank 14.
  • a valve element 23 is arranged, which closes the passage opening 19 in a starting position 24.
  • a valve seat 25 is formed on or in which a piston 26 of the valve element 23 sealingly abuts, wherein on the piston 26 at least one sealing element 27, in particular an O-ring seal, is provided.
  • an axially acting seal can be used.
  • the valve element 23 has the piston 26 opposite a guide portion 28 which is supported on a wall portion 29 of the housing 16, so that this valve element 23 is slidably disposed and guided along its longitudinal axis in the housing 16.
  • the piston 26 of the valve member 23 is positioned between the inlet 17 and the outlet 18 and slidable therebetween.
  • the guide portion 28 is positioned away from the inlet and outlet 17, 18, so that when transferring the valve element 23 from the initial position 24 shown in Figure 1 in an end position 34 shown in Figure 2, the passage opening 19 is released, so that the medium from the Pressure vessel 14 via the inlet 17 to the outlet 18 to flow and the fluid can be discharged through this outlet 18.
  • a compression spring 35 is provided, which supports an opening movement of the valve element 23.
  • a frictional force between the at least one sealing element 27 and the valve seat 25 at the inlet 17 can be overcome, even if only a slight pressure acts on the piston surface 32.
  • an actuator 37 is provided in this embodiment, which is advantageously designed as an independent unit or as an add-on module and releasably, preferably via a screw thread 38, on the housing 16 can be fastened.
  • This actuator 37 comprises an actuator housing 39 of an end face 41, on which an adjusting element 42, in particular a compression spring, is supported and acts against a valve closing member 43, which is guided in the actuator housing 39.
  • a thermal actuator 44 is further provided, which consists of a shape memory alloy.
  • the thermal actuator 44 is formed as a wire.
  • a plurality of parallel wires or a wire with a multiple deflection can be provided instead of a single wire.
  • shape memory alloys which are also referred to as SMA alloys (Shaped Memory Alloy), for example, consist of a NiTi alloy or a Cu-based alloy, FE-based or from a memory plastic. These shape memory alloys can be set to specific activation temperatures, so that they control an actuating movement of the valve piston 43 when these activation temperatures or limit temperatures are exceeded.
  • the valve closing member 43 abuts against a valve seat 46 in a closed state and closes a passage opening 48 in a housing wall 47 of the actuator housing 39.
  • the rear wall 41 of the actuator housing 39 may be formed as adjusting element 49 which is variable and adjustable at a distance with respect to the housing wall 47 of the actuator housing 39.
  • both the closing force of the adjusting element 42 for the valve closing member 43 to the valve seat 46 and a biasing force of the thermal actuator 44 may be adjustable.
  • the actuator 37 shown in FIG. 1 may be manufactured as a module component separately from the pressure relief valve 11. As a result, a 100% functional test is possible in advance. In addition, in addition, a fine adjustment of the thermal actuator 44 may be possible with an existing adjustment element 49.
  • the actuator 37 is preferably positioned with the interposition of a seal 51 to the housing 16, wherein in the housing 16, a pressure chamber 54 is formed.
  • This pressure chamber 54 is bounded in the radial direction by the wall portion 29 of the housing 16.
  • a pressure surface 31 is provided on the valve element 23, which is a pressure ring surface 55 on the housing wall 47 opposite.
  • This pressure chamber 54 is for example cylindrical.
  • the pressure chamber 54 is filled with an incompressible fluid, such as water, glycol or a mixture of water and glycol.
  • a pressure chamber 54 between the valve element 23 and the actuator 37 allows the pressure relief valve 11 to be irreversible, that is, when transferring the valve element 23 from the starting position 24 into an end position 34 according to FIG. 2, a subsequent reset of the Valve element 23 in the starting position 24 and closing the pressure vessel is no longer possible.
  • this arrangement has the advantage that an opening of the pressure relief valve 11 by a sliding movement of the valve element 23 can not only be controlled due to exceeding an activation temperature, but also in an exclusive exceeding a predetermined pressure opening of the valve element 23 is possible.
  • the valve element 23 In a closed state of the pressure relief valve 11, the valve element 23 is arranged in the starting position 24 and closes the discharge opening 12, so that no stored medium can flow in the pressure vessel 14.
  • the pressure chamber 54 is filled with the incompressible fluid, and the valve 45 of the actuator 37 is closed by the actuator 42, the valve closing member 43 is positioned in the valve seat 46 and held in a closed position due to the force.
  • the activation temperature is, for example, below an activation limit of the thermal actuator 44, such as 110 ° C, so that the thermal actuator 44 remains in its initial position in which the valve 45 is closed.
  • a locking member 71 may additionally be provided.
  • FIGS. 3 and 4 an alternative embodiment of the pressure relief valve 11 to the figures 1 and 2 is shown.
  • This embodiment differs from that in FIGS. 1 and 2 in that, instead of a cylindrically shaped pressure chamber 54, a hollow conical pressure chamber 54 or a pressure chamber 54, which is viewed in section and is trapezoidal, is provided.
  • the valve closing member 43 is preferably also adapted to the housing wall 47 which is inclined relative to the longitudinal central axis of the pressure relief valve 11.
  • the function and mode of action which are described with reference to FIGS. 1 and 2, apply.
  • FIG. 5 shows an alternative embodiment to FIGS. 3 and 4.
  • a connection line 59 which leads to a sensor element 61, can be connected to the pressure chamber 54.
  • This can be, for example, another valve, which is temperature-dependent controllable.
  • another remote from the pressure relief valve 11 area monitored and the pressure relief valve 11 are controlled.
  • FIG. 6 shows an alternative embodiment of the pressure relief valve 11 to FIG.
  • This embodiment in Figure 6 differs from the preceding figures in that the actuator 37 is not attached to the housing 16, but rather the housing 16 includes a fixed housing wall 40 to form the pressure chamber 54.
  • the actuator 37 is connected via the connection line 59, which opens into the pressure chamber 54.
  • a location-independent control of the pressure relief valve 11 may be possible.
  • the actuator 37 is attached to a heat transfer element 63, which represents, for example, a heat pipe.
  • a heat pipe is a nearly isothermal body, which has a heat transfer medium that evaporates in hot spots and condenses in cold places, has an extremely fast heat balance.
  • FIG. 7 shows a further alternative embodiment to the previously described embodiments of the pressure relief valve 11.
  • a locking member 71 is used for taking an irreversible end position 34 of the valve element 23 instead of a pressure chamber 54, which is arranged on or in the wall portion 29 of the housing 16 and during a movement of the valve element 23, in particular the guide portion 28 of the valve element 23, is passed over from an initial position 24 in an end position 34. A movement of the valve element into the starting position 24 is blocked.

Landscapes

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

Abstract

L'invention concerne une soupape de décharge de pression, servant en particulier à ouvrir un orifice de décharge (12) dans un récipient sous pression (14) qui est rempli d'un milieu gazeux ou liquide sous pression, comprenant un boîtier (16) qui comporte une entrée (17) et une sortie (18), un orifice de passage intermédiaire (19) qui peut être fermé par un élément de soupape (23), et un actionneur (37) qui peut commander l'élément de soupape (23) et qui comprend un ou plusieurs organes de réglage thermique (44) en alliage à mémoire de forme et au moins un élément de réglage (42), et qui commande le ou les organes de réglage thermiques (44) de l'élément de soupape (23) de la position initiale (24) dans la position finale (34) en cas de dépassement vers le haut ou le bas d'une température prédéterminée d'activation de l'organe de réglage thermique (44). L'élément de soupape (23) est disposé dans la position finale de transfert (34) de manière irréversible par rapport à la position initiale (24).
PCT/EP2015/060452 2014-05-12 2015-05-12 Soupape de décharge de pression WO2015173229A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014106639.1 2014-05-12
DE102014106639.1A DE102014106639B4 (de) 2014-05-12 2014-05-12 Druckentlastungsventil

Publications (1)

Publication Number Publication Date
WO2015173229A1 true WO2015173229A1 (fr) 2015-11-19

Family

ID=53276073

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2015/060452 WO2015173229A1 (fr) 2014-05-12 2015-05-12 Soupape de décharge de pression

Country Status (2)

Country Link
DE (1) DE102014106639B4 (fr)
WO (1) WO2015173229A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3060550B1 (fr) * 2016-12-20 2020-06-19 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Station et procede de remplissage de reservoir(s)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19963499A1 (de) * 1999-08-13 2001-02-15 Mannesmann Rexroth Ag Ventilanordnung
US7762272B2 (en) 2004-04-30 2010-07-27 Conception Et Developpement Michelin S.A. Gaseous fuel vehicle and automatic vent system
US20100282332A1 (en) 2007-07-16 2010-11-11 Societe Detechnologie Michelin High-Pressure Fluid Safety Valve
US20140117262A1 (en) * 2011-07-07 2014-05-01 Fluid Automation Systems S.A. Shape memory alloy actuated pilot controlled latching valve

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010132997A1 (fr) 2009-05-19 2010-11-25 Erick Girouard Soupape avec déclencheur activé par la température

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19963499A1 (de) * 1999-08-13 2001-02-15 Mannesmann Rexroth Ag Ventilanordnung
US7762272B2 (en) 2004-04-30 2010-07-27 Conception Et Developpement Michelin S.A. Gaseous fuel vehicle and automatic vent system
US20100282332A1 (en) 2007-07-16 2010-11-11 Societe Detechnologie Michelin High-Pressure Fluid Safety Valve
US20140117262A1 (en) * 2011-07-07 2014-05-01 Fluid Automation Systems S.A. Shape memory alloy actuated pilot controlled latching valve

Also Published As

Publication number Publication date
DE102014106639A1 (de) 2015-11-12
DE102014106639B4 (de) 2018-09-06

Similar Documents

Publication Publication Date Title
EP2458471B1 (fr) Dispositif thermostatique pour le réglage d&#39;un flux de matière
DE102006009537B3 (de) Kraftstoff-Druckgasbehälter
WO2017080725A1 (fr) Soupape de sécurité pour réservoir sous pression pourvue d&#39;une conduite de déclenchement
DE102012213570A1 (de) Thermische Druckentlastungsvorrichtung
EP3290761B1 (fr) Soupape d&#39;arrêt
DE102018203183A1 (de) Sicherheitsventil für einen Druckbehälter mit einer Auslöseleitung sowie Druckbehältersystem
DE102011114722A1 (de) Druckgasbehälter mit einem Ventil
DE102004010987B4 (de) Sicherungseinheit
DE102015217096A1 (de) Absperrarmatur
DE102014105100A1 (de) Ventil, insbesondere Regel- oder Abschaltventil, für flüssige oder gasförmige Medien
WO2015173229A1 (fr) Soupape de décharge de pression
DE102018218425A1 (de) Ventilvorrichtung für ein gasförmiges Medium und Tankvorrichtung zur Speicherung von verdichteten Fluiden
DE69728726T2 (de) Blockierungsfeder mit Fluidum
DE3101560C2 (de) Temperaturgesteuertes Sicherheitsventil
DE2451346B2 (de) Temperaturregler mit einem das Stellglied des Regien betätigenden thermostatischen System
DE102010032345B4 (de) Brandschutzventil und Gaszähler
DE1007135B (de) Notschlussventil
DE1798105C3 (de) Temperaturgesteuerte Sicherheitsauslösevorrichtung zum Betätigen einer Einrichtung bei Überschreiten einer vorgegebenen Temperatur
DE102008064704B4 (de) Temperaturregelventil zur temperaturabhängigen Durchflussregelung von insbesondere Motoröl
DE102013107283B4 (de) Thermostatisches Sicherheitsventil für gasförmige oder fluide Medien
DE102014014730B4 (de) Verschmutzungsanzeige
EP2413110A1 (fr) Vanne anti-incendie et compteur à gaz
EP1063466B1 (fr) Soupape de limitation de pression
EP0956469B1 (fr) Generateur d&#39;impulsions passif et procede de controle d&#39;accessoires de tuyauterie au moyen d&#39;un tel generateur
DE10213865A1 (de) Explosionsschutzventil

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15726014

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 15726014

Country of ref document: EP

Kind code of ref document: A1