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
  • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
  • F16K17/40—Safety valves; Equalising valves, e.g. pressure relief valves with a fracturing member, e.g. fracturing diaphragm, glass, fusible joint
• • 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
  • 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
  • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
  • F16K37/0025—Electrical or magnetic means
• • 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
  • F17C13/12—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures
  • F17C13/123—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures for gas bottles, cylinders or reservoirs for tank vehicles or for railway tank wagons
• • 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
  • F17C2201/01—Shape
  • F17C2201/0104—Shape cylindrical
  • F17C2201/0109—Shape cylindrical with exteriorly curved end-piece
• • 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
  • F17C2203/0619—Single wall with two layers
• • 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
  • F17C2205/01—Mounting arrangements
  • F17C2205/0123—Mounting arrangements characterised by number of vessels
  • F17C2205/013—Two or more vessels
  • F17C2205/0134—Two or more vessels characterised by the presence of fluid connection between vessels
  • F17C2205/0138—Two or more vessels characterised by the presence of fluid connection between vessels bundled in series
• • 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
  • F17C2205/01—Mounting arrangements
  • F17C2205/0123—Mounting arrangements characterised by number of vessels
  • F17C2205/013—Two or more vessels
  • F17C2205/0134—Two or more vessels characterised by the presence of fluid connection between vessels
  • F17C2205/0142—Two or more vessels characterised by the presence of fluid connection between vessels bundled in parallel
• • 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
  • F17C2205/0323—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
  • F17C2205/0382—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
  • 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
  • F17C2250/03—Control means
• • 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
  • F17C2250/0439—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
  • 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
• • 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
  • F17C2250/0631—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
  • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
  • F17C2250/06—Controlling or regulating of parameters as output values
  • F17C2250/0605—Parameters
  • F17C2250/0678—Position or presence
• • 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
  • F17C2250/0684—Acceleration
• • 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
  • F17C2270/01—Applications for fluid transport or storage
  • F17C2270/0165—Applications for fluid transport or storage on the road
  • F17C2270/0168—Applications for fluid transport or storage on the road by vehicles
• • 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
  • F17C2270/01—Applications for fluid transport or storage
  • F17C2270/0165—Applications for fluid transport or storage on the road
  • F17C2270/0168—Applications for fluid transport or storage on the road by vehicles
  • F17C2270/0178—Cars
• • 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
  • F17C2270/01—Applications for fluid transport or storage
  • F17C2270/0165—Applications for fluid transport or storage on the road
  • F17C2270/0184—Fuel cells
• • 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 present invention relates to a thermal pressure relief device (TPRD) for a gas pressure accumulator and / or a gas pressure storage system, a gas pressure accumulator and a gas pressure storage system, each of which is provided with a generic thermal pressure relief device, this or this being preferably used in fuel supply systems, the fuel cell systems or Supply applications of fuel cells with fuel, in particular with gaseous hydrogen.
• TPRD thermal pressure relief device
• the present invention also relates to a method for thermal overpressure protection, in particular a gas pressure accumulator of the generic type.
• a pressure relief valve in general is a safety device designed to protect a pressurized container or system during an overpressure event.
• TPRD Thermal Pressure Relief Device
• a thermal pressure relief valve Protect pressurized containers or a pressurized system from excess pressure.
• an overpressure event generally refers to any condition that causes a pressure increase in a vessel or system beyond the specified design pressure or Maximum Allowable Working Pressure (MAWP) it is an overpressure event caused by a rise in temperature in the vicinity of the container or system, such as a fire in a vehicle in which the container or system is installed.
• MAWP Maximum Allowable Working Pressure
• the primary purpose of a pressure relief valve is to protect life and property by venting liquid or gas from a pressurized container or system.
• a thermal pressure relief device or a thermal pressure relief valve must be functional at all times, especially in the event of a power failure, for example when the system control is not functional.
• the safest energy source for a pressure relief valve, in particular a thermal pressure relief device is therefore the process fluid.
• the fluid stored in the container or system can be a gas or a liquid.
• the thermal pressure relief device can be the only remaining device to prevent a catastrophic failure. Since the reliability of the thermal pressure relief device is directly related to the complexity of the device, it is important that the construction of the thermal pressure relief device be as simple as possible.
• thermal relief devices for example, a fitting is used which includes a fusible plug that blocks and seals an outlet passage in the container. Now, when the temperature surrounding the container reaches the yield point of the fusible stopper, the stopper melts and the pressure forces the molten stopper out through the passage, thus allowing the pressure in the container to escape.
• DE 603 09 339 T2 proposes a relief valve which provides pressure relief for a pressurized fluid in a container when a predetermined temperature or a predetermined pressure is exceeded.
• the described heat and pressure relief combination valve comprises a first housing with an opening at a first end and a conduit extending through the opening from a second end of the first housing, a second housing which is partially received in the opening of the first housing wherein the first and second housings define a chamber adjacent to the conduit, an exit conduit extending from the chamber and providing an exit to an exterior of the valve, a bearing element within the chamber and adjacent to the conduit, the bearing element being larger is as the width of the conduit, a spring biased within the chamber and aligned with the bearing element, and a heating element within the chamber between the second housing and the spring, the heating element being aligned with the spring and melting at a predetermined temperature, the heating element not blocking an exit to an exterior of the valve when the valve is not actuated, the The spring is biased against the thermal element when the valve is inoperative and exerts
• DE 38 12 552 CI describes a melting safety device for hydropneumatic pressure accumulators, with an outlet channel that can be released for the gas to exit the system and that can be tightly sealed by a blocking element made of a material that melts at a predetermined temperature and thereby releases the outlet channel, wherein for releasing and tightly closing the outlet channel, in addition to the blocking element, a valve is present which is biased into its blocking part that closes the outlet and can be reversed into the open position releasing the outlet channel by an actuating movement of an actuator movable by a power drive and that
• the locking element is designed as a blocking element which protrudes into the path of movement of the actuator and prevents its adjusting movement.
• US 3,618,627 describes an automatic pressure relief valve, having a valve which is arranged between a pressure system and the environment, the valve having a shaft which is at least partially hollow, a fusible element, the fusible element when the melting temperature is reached, the pressure system can release, wherein the fusible element is arranged in the hollow valve stem, the fusible element is adapted to slide in the cavity and respond to pressure within the system to the system at a predetermined pressure to relieve, and a spring is arranged in the cavity and presses against the fusible element to suppress sliding of the fusible element.
• the decision to actively activate the thermal pressure relief device may have to be made by a higher-level authority.
• TPRD thermal pressure relief device
• Such high-pressure container collections or high-pressure container units have a large number of possible interfaces or weak points at which the risk of a possible fire is increased. So can the situation arise that a single high-pressure container of the high-pressure container unit is exposed to a fire or a heat source, whereas the rest of the composite, in particular the thermal pressure relief device provided on the high-pressure container unit, is / are not affected or impaired. This can lead to the affected high-pressure container reaching a critical or unstable state without this being able to be detected by the thermal pressure relief device, which can endanger the integrity of the high-pressure container unit.
• the same problem can occur in tank farms or tank vehicles which are used to transport gaseous fuel or fuel gas, in particular gaseous hydrogen, and which have a large number of high-pressure containers for this purpose.
• an object of the present invention is to provide a thermal pressure relief device and a method for thermal overpressure protection that are capable of, on the one hand, the reliability in the acquisition or detection of possible local or spot-like heat effects to improve gas pressure storage or gas pressure storage systems, on the other hand, the fatigue strength of the thermal pressure relief device used, in particular under the increased requirements for the storage of gaseous hydrogen, can be increased while realizing a simple structure of the thermal pressure relief device.
• one of the basic ideas of the present invention is to provide a thermal pressure relief device and a method for thermal overpressure protection which are able to record or detect the effect of heat on a gas pressure accumulator and / or a gas pressure accumulator system not only at the point which is attached or installed to the thermal pressure relief device on the gas pressure accumulator and / or the gas pressure storage system, but at least at one other point of the gas pressure accumulator and / or the gas pressure storage system and / or a vehicle in which the thermal pressure relief device is installed, record or detect and / or a heat effect on the gas pressure accumulator and / or the gas pressure accumulator system at at least two spatially separate locations or positions or areas, in particular the gas pressure accumulator and / or the gas pressure accumulator system and / or a vehicle gs, in which the thermal pressure relief device is installed, to record or detect.
• a thermal pressure relief device for gas pressure accumulators and / or gas pressure accumulator systems has: a valve unit which can be fluidly connected to a gas pressure accumulator and / or a gas pressure accumulator system and has at least one fluid path by means of which the gas pressure accumulator and / or the gas pressure accumulator system can be emptied ,
• a gas stored under (high) pressure in the gas pressure accumulator and / or the gas pressure accumulator system can be diverted or emitted to an environment, in particular an environment of the gas pressure accumulator and / or the gas pressure accumulator system
• the valve unit having a closure element which is between an open Position in which the gas can flow through the fluid path, in particular can flow outwards to the environment, and a closed position in which no gas can flow through the fluid path, can be adjusted and / or moved, and a first triggering means that can do this is set up to adjust and / or move the closure element into the open position and /
• the thermal pressure relief device has two detection areas in which the effect of heat on an individual gas pressure accumulator and / or on a group of gas pressure accumulators (gas pressure accumulator system) can be detected and detected.
• This offers the advantage over the known devices that not only at the installation position of the thermal pressure relief Device, the heat effect can be detected, but this is possible at least at a further point or position or a further area.
• a thermal pressure relief device and a method for thermal overpressure protection can be provided, which are able to improve the reliability in the acquisition or detection of possible local or spot-like heat effects on gas pressure storage or gas pressure storage systems such as spot-shaped fires in to improve a vehicle, and on the other hand, the fatigue strength of the thermal pressure relief device used, in particular the triggering means, can be increased, especially under the increased requirement profile for the storage of gaseous hydrogen.
• the proposed device and the method based on it realize a simple structural design, which contributes positively to the reduction of the acquisition costs as well as the operating costs. This is possible in particular because the use of a large number of separate thermal pressure relief devices can be dispensed with.
• spatially separate locations and / or areas is understood to mean that the two detection locations or detection areas are at least so far apart or spaced that a meaningful or reliable detection by means of a detection location or In other words, the two detection points or detection areas are so far apart that heat conduction between these two areas is not sufficient, so that reliable detection or detection of the effect of heat in a sufficiently short response time is not guaranteed can be.
• the respective spacing of detection points or detection areas depends on the respective installation situation. If there is the possibility that there are many punctual or spot-shaped danger points, it is advisable to provide many detection points or detection areas, in particular to provide them close to one another.
• a spatial distance between individual detection points or detection areas can vary between 100 mm and 1000 mm, depending on the installation situation or the number of danger points.
• the term "heat effect" in the context of the present invention is to be understood that at least selective heating of a shell or a laminated hollow body of the gas pressure accumulator or a component of the gas pressure accumulator system or a component of the vehicle in which the thermal pressure relief device is installed , which can jeopardize the integrity of the gas pressure accumulator or the gas pressure accumulator system.
• the at least selective heating can be caused by a fire, for example a vehicle fire, or a cable fire like that.
• the thermal pressure relief device is designed in the form of an in-tank valve for attachment to the gas pressure accumulator, in particular a hydrogen tank (hydrogen gas tank), which is preferably set up to supply a fuel cell system with fuel, in particular gaseous hydrogen.
• a hydrogen tank hydrogen gas tank
• the thermal pressure relief device has a connection piece which is designed to connect into the gas pressure accumulator, in particular a connection piece of the gas pressure accumulator to be screwed in.
• thermal pressure relief device is used in a gas pressure storage system of a vehicle, a gas storage facility, a transport or tank vehicle which is used to transport gaseous fuel or fuel gas, in particular gaseous hydrogen, exchangeable container batteries and the like.
• vehicle or “means of transport” or other similar terms as used below encompass motor vehicles in general, such as passenger automobiles including sports utility vehicles (SUV), buses, trucks, various commercial vehicles, water vehicles including various boats and ships , Aircraft, aerial drones and the like, hybrid vehicles, electric vehicles, plug-in hybrid electric vehicles, hydrogen vehicles and other alternative vehicles (e.g. fuels obtained from resources other than petroleum).
• a hybrid vehicle is a vehicle with two or more energy sources, for example gasoline-powered and electrically powered vehicles at the same time.
• the term “fuel” is to be understood as a medium or fluid which serves as an energy store.
• this can be a fuel whose chemical energy is generated by combustion in heat engines, such as internal combustion engines or gas turbines , is converted into mechanical energy, on the other hand it can be, for example, hydrogen, which continuously carries out a chemical reaction in a fuel cell (galvanic cell) and thereby generates electrical energy or the chemical energy into electrical energy transforms.
• hydrogen there is also the possibility of burning hydrogen in special fuel machines, with which hydrogen can also be used as fuel.
• the fuel can be gaseous or liquid.
• pressure accumulators have also been developed in which hydrogen is stored in both forms, i.e. gaseous and liquefied, the so-called transcritical storage.
• closure element as an actuating piston which is movably supported or received in the valve unit transversely to the fluid path (flow channel), in particular perpendicular to the fluid path.
• the pressure of the fuel stored in the gas pressure accumulator or the gas pressure accumulator system which can be between 300 bar and 1000 bar when filled, acts in the direction of action of the actuating piston, whereby the necessary closing forces of the closure element and thus the stress the closure element and thus the thermal pressure relief device can be significantly reduced. This can ensure the longevity of the thermal pressure relief device.
• the actuating piston has an elongated, cylindrical piston body, on the outer circumference of which three sealing elements are provided spaced apart from one another in the longitudinal direction of the piston body, whereby two chambers separated from one another gas-tight are formed in the valve unit when installed.
• the first chamber in the closed position of the actuating piston, is fluidically connected to the fluid path and closes it, so that no gas stored in the gas pressure accumulator or in the gas pressure accumulator system can escape into the environment.
• the second chamber when the actuating piston is in the open position, is fluidically connected to the fluid path and connects this via a fluid line to a relief connection, whereby the gas stored in the gas pressure accumulator or in the gas pressure accumulator system can escape into the environment.
• the size of the second chamber is increased by a radially circumferential groove on the outer circumference of the piston body in order to ensure a sufficient flow rate of the gas flowing out of the gas pressure accumulator and / or the gas pressure accumulator system.
• closure element can alternatively be designed as a closure piston which is movably supported or received in the valve unit in the direction of the fluid path and / or the outflow direction of the gas, in particular within the fluid path.
• the closure piston closes a laterally arranged fluid line, in particular behind the closure piston in the flow direction, in the closed position and releases it in the open position, whereby the fluid path is fluidically connected to the fluid line and thus with is fluidically connectable or connected to a relief connection, whereby the gas stored in the gas pressure accumulator or in the gas pressure accumulator system can escape into the environment.
• the thermal pressure relief device has a second triggering means which is (directly) integrated into the valve unit and in parallel or in series with the first triggering means is connected, in particular is connected fluidically in parallel or in series.
• first triggering means and / or the second triggering means is / are designed in the form of a glass ampoule which is designed such that it bursts or breaks when the predetermined temperature (triggering temperature) is reached.
• the first triggering means is designed in the form of a test section which is under a predetermined pressure (a sufficiently high pressure) so that the closure element remains in the closed position by applying this pressure until the pressure in the test section due to the action of heat, in particular at the at least one further point, falls, in particular drops below a predetermined trigger pressure (when the predetermined temperature is reached), whereby the closure element is released.
• a predetermined pressure a sufficiently high pressure
• the term “release” is to be understood as meaning that a mechanism, preferably a mechanical mechanism, is provided which prevents the closure element from moving, in particular from being able to move into the open position Way can be realized by the intrinsic shape of the glass ampoule, which, by bursting when the predetermined temperature is reached, clears a space into which the closure element, which is preferably pretensioned by a spring, can move in order to clear the fluid path for the gas.
• test section is designed in the form of a hose, in particular a rubber hose, and / or a pipeline, in particular steel pipe, which is filled with a liquid and / or a gas, in particular water, which / that is under sufficiently high pressure so that the closure element remains in the closed position until the pressure in the hose and / or the pipeline falls due to the action of heat, in particular on a detection element.
• the pressure present in the test section can be in a range from 5 bar to 20 bar, preferably 8 to 12 bar.
• the test section has a detection element, in particular an opening element, which is formed by: the hose itself, which at least partially melts when the predetermined temperature is reached, punctual weak points in the hose which melt when the predetermined temperature is reached , Sealing plugs that are inserted into the hose and / or the pipeline and melt when the predetermined temperature is reached, and / or glass ampoules that burst or break when the predetermined temperature is reached and open an opening in the hose or pipeline, whereby the / the liquid and / or gas absorbed under pressure in the test section can escape and thus the pressure in the test section drops.
• a detection element in particular an opening element, which is formed by: the hose itself, which at least partially melts when the predetermined temperature is reached, punctual weak points in the hose which melt when the predetermined temperature is reached , Sealing plugs that are inserted into the hose and / or the pipeline and melt when the predetermined temperature is reached, and / or glass ampoules that burst or break when the predetermined temperature is reached
• the stopper can consist of a plastic material, a eutectic material such as bismuth, bismuth or tin compound or the like, which has a low melting point, so that the stopper melts when the predetermined temperature is reached and the opening in the hose or in the line opens or . makes accessible.
• the and / or the detection elements on the gas pressure accumulator and / or on the gas pressure accumulator system and / or in a vehicle in which the thermal pressure relief device is installed are preferably positioned at particularly endangered points, so that rapid Detection of possible heat effects such as a fire is reliably possible.
• detection elements locations or areas
• a vehicle outside the actual gas pressure storage system, in particular in the vicinity of hazardous areas such as brakes, motors, batteries and the like, in order to detect the effect of heat at an early stage.
• the first triggering means can be designed in the form of a test section that is filled with a medium, in particular with a liquid and / or a gas, the pressure of which, when the predetermined temperature is reached, reaches a value due to the action of heat that is sufficient to close the closure element ( active) to be adjusted and / or moved into the open position.
• the pressure increase can preferably take place as a result of an at least partially occurring phase transition.
• test section is designed in the form of a hose, in particular a rubber hose, and / or a pipe, in particular steel pipe, which is filled with at least one liquid that preferably has a low boiling point and which when reached the predetermined Temperature begins to boil, whereby the pressure in the hose or the pipeline rises above the predetermined pressure, so that the closure element can be adjusted and / or moved into the open position, in particular irreversibly.
• the liquid received in the hose and / or the pipeline is water, ethanol, methanol, ethanol mixtures, methanol mixtures and the like.
• the closure element can also be actuated electrically and / or electronically, in particular by means of a heating wire and / or a microwave transmitter, which can put the first and / or the second triggering means under the action of heat.
• the closure element can also be actuated directly, for example via a solenoid valve or a piezo element.
• the thermal pressure relief device has a communication device, in particular a wireless communication device using infrared, radio, Bluetooth or WLAN (wireless local area network), which is set up to be used by external users, such as an external control / main control of a Vehicle, an emergency control system that can be operated by the fire brigade, the police or other auxiliary personnel to receive control commands, in particular to operate the first and / or second triggering means and / or the heating wire and / or the microwave transmitter.
• a communication device in particular a wireless communication device using infrared, radio, Bluetooth or WLAN (wireless local area network)
• external users such as an external control / main control of a Vehicle, an emergency control system that can be operated by the fire brigade, the police or other auxiliary personnel to receive control commands, in particular to operate the first and / or second triggering means and / or the heating wire and / or the microwave transmitter.
• the thermal pressure relief device additionally has an alignment detection device which is set up to determine the absolute geometric alignment of the thermal Pressure relief device, in particular the valve unit, more preferably at least one gas pressure accumulator connected to the valve unit, in the room, the orientation detection device having at least one sensor selected from the group: accelerometer, gyroscope and geomagnetic field sensor.
• the thermal pressure relief device in particular a control device integrated into it, is set up to select a relief connection based on an alignment of the thermal pressure relief device, in particular the valve unit, determined by the alignment detection device, by means of which the connected Gas pressure accumulator and / or the connected gas pressure accumulator system is possible in a predetermined, in particular secured, spatial direction.
• the thermal relief device in particular the valve unit, can have a multiplicity of relief connections which can each be opened or closed by a valve provided, in particular a solenoid valve.
• Relief pipelines can advantageously be provided at the respective relief connections, which are oriented in different spatial directions in order to discharge the fuel in a desired or advantageous spatial direction in the event of an accident in the vehicle.
• the relief pipelines are preferably arranged in such a way that the discharged fuel cannot damage any safety-relevant components of the vehicle, in particular the fuel supply system, and does not prevent access to the vehicle.
• a relief pipeline selected which lets the fuel up, so in the vertical direction, so that lateral access to the vehicle, especially for rescue teams, is guaranteed.
• the present invention also relates to a gas pressure accumulator with a connection piece into which a thermal pressure relief device as described above can be introduced. If necessary, the thermal pressure relief device, in particular the valve unit, and / or the gas pressure accumulator is provided with seals in order to position the thermal pressure relief device in a gas-tight manner within the connecting piece of the gas pressure accumulator.
• Gas pressure accumulators of the generic type are usually designed as hollow bodies which are formed from a multi-layer laminate, in particular a multi-layer plastic laminate.
• the plastic laminate can preferably be provided with a reinforcing fiber material, e.g. with carbon fibers or with glass fibers, in order to increase its stability.
• the connection piece is introduced into this laminate and usually provided with an internal thread into which a mating thread, which is provided on the connection piece of the thermal pressure relief device, can be screwed in order to attach the thermal pressure relief device to the gas pressure storage device, preferably in this.
• hose and / or fluid pockets which are connected to the hose and / or the pipeline, are introduced into the hollow body.
• the present invention also relates to a gas pressure storage system for storing fuel, in particular gaseous hydrogen, which is preferably set up to supply a fuel cell system with fuel, in particular gaseous hydrogen, comprising: at least one gas pressure accumulator, preferably the above-described gas pressure accumulator according to the invention, and a thermal pressure relief device, preferably the above-described thermal pressure relief device according to the invention.
• the present invention relates to a method for thermal overpressure protection of gas pressure accumulators and / or gas pressure storage systems by means of a thermal pressure relief device, in particular the above-described thermal pressure relief device according to the invention, comprising: opening a fluid path, by means of which a gas pressure accumulator and / or a gas pressure storage system can be emptied Reaching a predetermined temperature through the action of heat, in particular through the action of external heat, the action of heat to open the fluid path at least at one further point of the gas pressure accumulator and / or the gas pressure accumulator system and / or a vehicle in which the thermal pressure relief device is installed that is not an installation position of the thermal pressure relief device can be detected, and / or the effect of heat to open the fluid path at least at two spatially separated from one another Places or positions and / or areas of the gas pressure accumulator and / or the gas pressure accumulator system and / or a vehicle in which the thermal pressure relief device is installed in which the effect of heat can be detected.
• the fluid path is closed in an unactuated and / or not triggered state by means of a closure element which is active or passive from a closed position in which no gas can flow through the fluid path to an open position in which gas can flow through the fluid path, adjusted and / or moved.
• a first triggering means adjusts and / or moves the closure element into the open position and / or enables the closure element to move into the open position and / or through the action of heat, in particular when the predetermined temperature is reached to move.
• the first triggering means is designed in the form of a test section, which is under a predetermined pressure in the unactuated or not triggered state and exerts this on the closure element in such a way that it remains in the closed position until the pressure is in the Test section under the action of heat, in particular external heat action, sinks or falls, in particular drops below a predetermined trigger pressure when the predetermined temperature is reached, whereby the first triggering means releases the closure element and this is adjusted and / or moved into the open position, in particular by a pretensioned spring in the open position is pressed.
• the thermal pressure relief device can be integrated in a gas pressure accumulator or a gas pressure accumulator system comprising several gas pressure accumulators. Furthermore, the thermal pressure relief device can be used for a method for thermal overpressure protection. Therefore, the further features that were disclosed in connection with the above description of the thermal overpressure protection can also be applied to the gas pressure accumulator, the gas pressure storage system and the method for thermal overpressure protection. The same applies vice versa for the gas pressure storage system, the gas pressure storage system and the method for thermal overpressure protection. Brief description of the figures
• Fig. 1 is a schematic sectional view of a heat and pressure relief combination valve from the side according to the prior art
• FIG. 2 shows a perspective view of a high-pressure container unit according to the prior art
• FIG. 3 simplifies an embodiment of a gas pressure storage system according to the invention
• FIG. 4 shows an enlarged section of the thermal pressure relief device from FIG. 3
• FIG. 5 shows the closure element of the thermal pressure relief device from FIG . 4 in the closed position
• FIG. 6 shows the closure element of the thermal pressure relief device from FIG. 4 in the open position
• FIG. 1 shows a schematic sectional view of a heat and pressure relief combination valve 4 from the side according to the prior art.
• the valve 4 shown has a first housing 10 and a second housing 12.
• the first housing 10 includes a first end 15, a second end 24 opposite the first end, and a conduit 22 extending from a second end 24 of the first housing 10 to the first end 15.
• the line 22 is positioned in such a way that it leads into a distributor 3 and is in fluid communication therewith.
• the first and second housings 10, 12 define a chamber 20.
• the second housing 12 has an opening 34 so that when the second housing 12 is received by the first housing 10, the openings 14, 34 of the first and the second housing second housing together define the chamber 20 adjacent to the conduit 22.
• a bearing element 30, a spring 32 and a heating element 34 are arranged in the chamber 20.
• the bearing element 30 is arranged adjacent to the line 22.
• a portion 36 of the bearing element 30 is made of a sealing material that is disposed adjacent to the conduit 22. The remaining part of the bearing element 30 acts as a bearing surface to which a force by the spring 22 is applied.
• the bearing member 30 is shaped so that while it acts as a seal against the conduit 22, it does not act as a seal in the chamber 22.
• the spring 32 is supported in compression against the bearing element 30.
• the spring 32 biases the bearing element 30 against the conduit 22.
• the bearing element thus acts as a seal between the conduit 22 and the chamber 20.
• valve 4 is incorporated into the opening 6 in the manifold 3, which is attached to the container 2 which includes a gaseous or liquid fluid.
• the spring 32 is under compression and exerts a force against the bearing element 30 so as to form a seal between the conduit 22 and the chamber 20.
• the spring 32 biases the bearing element 30 against the line 22.
• the heating element 34 is arranged in alignment with the spring 32.
• the heating element 34 has a melting point which causes it to melt or gives up its solid-state properties when a predetermined temperature is reached in the container 2. When this occurs, the thermal element melts and causes the spring 32 to decompress into the area previously occupied by the thermal element 34. When the spring 32 relaxes, the bearing element 30 is no longer biased against the conduit 22. Thus, it is possible for the excessive heat pressure to enter the chamber 20 from the conduit 22 and escape through the outlet conduit 42. The valve 4 therefore provides heat relief and prevents damage to the container and / or the fluid.
• FIG. 2 shows a perspective view of a high-pressure container unit 10 according to the prior art.
• the high-pressure container unit 10 shown has a box-like housing 22, a plurality of cylindrical containers 18 which are lined up inside the housing 22, each container 18 including an opening 30B at an end portion on one side in the axial direction, a coupling element 20 which the openings 30B to couple the plurality of containers 18 together and that includes a flow passage that communicates the interiors of the plurality of containers 18 with each other.
• the high pressure container unit 10 described has a discharge line 32 which leads from the coupling element 20 through a through hole 46A formed in the housing 22 to the exterior of the housing 22, wherein a valve 34 is connected to the discharge line 32, which valve can open and close the flow passage.
• a thermal pressure relief device is only integrated in the valve 34 for reasons of cost; accordingly, it is only possible here outside the housing 22 and only at one point on the high-pressure container unit 10 to detect the effect of heat, which is unsatisfactory.
• FIG. 3 shows a simplified first embodiment of a gas pressure accumulator system 400 according to the invention, which is an example of two gas pressure accumulators 300, two in-tank valves 200, each screwed into a gas pressure accumulator 300, and a thermal pressure relief device 100, which is integrated in the embodiment shown in a gas handling device , consists.
• the valve unit 110 of the thermal pressure relief device 100 not only has the components that are necessary for the thermal pressure monitoring of the gas pressure storage system 400, but also other components such as a safety valve, a pressure regulating valve, filters, check valves and the like.
• the thermal pressure relief device 100 shown has a fluid path 101 in the valve unit 110 which is fluidically connected or communicates with the two gas pressure accumulators (high-pressure containers) 300, in particular their content, the fuel.
• a closure element 111 which can open and close the fluid path, is provided in the fluid path 101. In the closed position, which corresponds to the basic position, no gas, in particular fuel, can flow through the fluid path, and thus the gas pressure accumulators 300 are in the operational state.
• a first triggering means 120 of the thermal pressure relief device that a heat effect in the form of a fire occurs, for example at the point St2
• the triggering means 120 can enable the closure element 111 to move into the open position, whereby the fluid path 101 with the Second fluid path 102 (fluid line) is connected, whereby the gas (the fuel) from the gas pressure accumulators 300 can be emptied or discharged in a controlled manner into the vicinity of the thermal pressure relief device via a relief connection A3 of the valve unit.
• the closure element 111 is designed as an actuating piston purple, the function of which will be described in more detail later with reference to FIG.
• the first triggering means 120 is designed as a test section, which here has a distributor to which a large number of hoses and / or lines can be connected in order to implement the test section. As shown here, two hoses are connected to the distributor, each of which is laid to one of the gas pressure accumulators in order to be able to detect a possible heat effect there at the points or areas St2 and St3. Furthermore, a line is connected to the distributor, which leads to the point or the area St4 which can be provided, for example, in the engine compartment of a vehicle or in the vicinity of the brakes of the vehicle.
• the test section is filled with a liquid, preferably water, and is pressurized.
• the pressure prevailing in the test section is directed to the actuating piston lilac, which is thereby pressed into the closed position against the force of a spring;
• the test section is hermetically or watertightly sealed. If a heat effect now occurs at one of the points St2 to St4, for example a sealing plug made of plastic is melted in the line or in one of the hoses of the test section, and the pressurized water can escape, which increases the pressure in the test section or the first triggering means drops and thus the spring can push or press the actuating piston lilac into the open position, whereby the gas can escape through the relief connection A3.
• the actuating piston lilac has an elongated, cylindrical piston body, on the outer circumference of which three sealing elements 113 are provided in grooves.
• the three sealing elements 113 are spaced apart from one another in the longitudinal direction of the piston body, i.e. perpendicular to the fluid path 101, whereby two chambers K1, K2 separated from one another in a gas-tight manner are formed in a guide bore in which the actuating piston is movably received.
• FIG. 5 shows the closure element lilac of the thermal pressure relief device 100 from FIG. 4 in the closed position.
• the fluid path 101 opens into the first chamber 101, which is not connected to the second fluid path 102, whereby the thermal pressure relief device is in the closed state, that is to say in the non-actuated state.
• FIG. 6 shows the closure element or the actuating piston lilac of the thermal pressure relief device 100 from FIG. 4 in the open position, ie in the actuated state.
• the pressure in the test section has fallen to a pressure P2, which is lower than the pressure PI, as a result of which the pretensioned spring 114 can push the actuating piston lilac to the left into the open position.
• the fluid path 101 opens into the second chamber K2, which is connected to the second fluid path 102, as a result of which the gas can escape from the gas pressure accumulator via the relief connection A3 to the outside into the environment.
• a groove is formed at the location of the chamber K2, ie between the two right-hand sealing elements 113, or the diameter of the actuating piston is reduced in order to ensure a sufficiently high flow rate of the outflowing gas.
• FIG. 7 shows, in a simplified manner, a further embodiment of a gas pressure storage system according to the invention, in particular an alternative thermal pressure relief device according to the present invention.
• the gas pressure storage system shown in FIG. 7 corresponds to the system already described in FIG.
• the closure element 111 is not designed as an actuating piston purple, but rather as a closure piston 111b.
• the closure piston 111b is accommodated in the valve unit 110 such that it can move in the direction of the fluid path 101 or in the direction of the gas flowing out through the fluid path 101.
• the sealing piston 111b On the side facing the fluid path 101, the sealing piston 111b has a conical valve body region which, in the closed state, comes into contact with a valve seat, as a result of which the thermal pressure relief device 100 is in the closed state.
• a piston area is formed which is significantly larger than the valve seat area, for example 50 to 100 times as large. In this way, the pressure of 10 to 20 bar prevailing in the test section is sufficient to close the valve against the cylinder pressure of up to 1000 bar applied to the fluid path 101.
• a spring can be provided which pushes the sealing piston 111b away from the valve seat if the pressure in the test section drops due to the effect of heat.

Landscapes

• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Filling Or Discharging Of Gas Storage Vessels (AREA)
• Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
• Safety Valves (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=76730500

Family Applications (1)

Country Status (8)

Families Citing this family (5)

Family Cites Families (27)

• 2020
  • 2020-06-10 DE DE102020207261.2A patent/DE102020207261A1/de active Pending
  • 2020-12-17 CN CN202011503983.2A patent/CN113775801A/zh active Pending
  • 2020-12-17 CN CN202023057681.5U patent/CN215334698U/zh active Active
• 2021
  • 2021-06-10 AU AU2021289001A patent/AU2021289001A1/en active Pending
  • 2021-06-10 US US18/001,226 patent/US20230235830A1/en active Pending
  • 2021-06-10 KR KR1020237001104A patent/KR20230037028A/ko active Search and Examination
  • 2021-06-10 JP JP2022576836A patent/JP2023529224A/ja active Pending
  • 2021-06-10 EP EP21736518.8A patent/EP4165338A1/de active Pending
  • 2021-06-10 WO PCT/EP2021/065627 patent/WO2021250172A1/de active Application Filing

Also Published As

Similar Documents

Legal Events