WO2024104675A1 - Système de réservoir et procédé de test d'une vanne d'isolement dans un système de réservoir - Google Patents

Système de réservoir et procédé de test d'une vanne d'isolement dans un système de réservoir Download PDF

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Publication number
WO2024104675A1
WO2024104675A1 PCT/EP2023/078694 EP2023078694W WO2024104675A1 WO 2024104675 A1 WO2024104675 A1 WO 2024104675A1 EP 2023078694 W EP2023078694 W EP 2023078694W WO 2024104675 A1 WO2024104675 A1 WO 2024104675A1
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WO
WIPO (PCT)
Prior art keywords
isolating valve
valve
tank
pressure
isolating
Prior art date
Application number
PCT/EP2023/078694
Other languages
German (de)
English (en)
Inventor
Christian Kuhnert
Birgit LENZ
Stefan Kieferle
Markus Strasser
Nicolas WUSSLER
Martin Schwab
Christian Schugger
Original Assignee
Robert Bosch Gmbh
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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2024104675A1 publication Critical patent/WO2024104675A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
    • F17C5/06—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with compressed gases
    • 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
    • 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
    • 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
    • F17C2205/0335—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
    • F17C2205/0382—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
    • 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
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/04—Methods for emptying or filling
    • F17C2227/047—Methods for emptying or filling by repeating a process cycle
    • 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
    • F17C2250/03—Control means
    • F17C2250/036—Control means using alarms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0404—Parameters indicated or measured
    • F17C2250/043—Pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—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
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0486—Indicating or measuring characterised by the location
    • F17C2250/0491—Parameters measured at or inside the 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
    • F17C2265/00—Effects achieved by gas storage or gas handling
    • F17C2265/06—Fluid distribution
    • F17C2265/066—Fluid distribution for feeding engines for propulsion

Definitions

  • the present invention relates to a tank system, in particular a tank system for storing a gaseous fuel, such as hydrogen, and for supplying a consumer system with the gaseous fuel, as well as a method for testing an isolating valve in a tank system.
  • a gaseous fuel such as hydrogen
  • Hydrogen and other gaseous fuels can be used in mobile applications, particularly in road vehicles, to operate drive systems. This includes the operation of fuel cells as well as combustion engines or other heat engines. Gaseous fuels can also be used advantageously in stationary applications to generate energy.
  • the gas is usually stored in a tank system with one or more tank containers and fed to the consumer system, e.g. a fuel cell or a combustion engine, via a line system that is connected to the tank container or containers.
  • US 7367349 B2 describes a supply system for a fuel cell in which several tanks are connected in parallel via a respective extraction line to a line system for supplying the fuel cell.
  • a switchable isolating valve is arranged in each extraction line in order to connect the respective tank to the line system or to disconnect it from it.
  • initially only one of the isolating valves is opened to increase the pressure in the piping system and subsequently the remaining valves are opened. This serves the purpose of reducing the wear and tear on the valves by reducing the pressure difference between the tanks and the high pressure piping system at the time the remaining valves are opened.
  • isolation valves open reliably when the system is started in order to increase operational safety. This applies to systems with just one tank as well as to systems with multiple tanks.
  • the present invention provides a method having the features of claim 1 and a tank system having the features of claim 8.
  • a method for testing a switchable isolating valve of a valve device which connects a tank container to a line system, wherein a gas is stored in the tank container at a first pressure and a second pressure is present in the line system which is lower than the first pressure.
  • the method comprises controlling the isolating valve in order to switch it from a closed position in which the isolating valve closes a removal path of the valve device connecting the line system and the tank container to an open position in which the isolating valve opens the removal path, detecting a pressure curve in a tank-side section of the removal path which extends between the tank container and the isolating valve, determining whether the detected pressure curve after the isolating valve is activated includes a pressure drop, and outputting an error signal if it is determined that the detected pressure curve after the isolating valve is activated does not include a pressure drop.
  • a tank system comprises at least one tank container for storing gas, in particular hydrogen, a Line system for supplying a consumer system, such as a fuel cell or a heat engine, a valve device with a removal path which connects the tank container and the line system, and a switchable isolating valve arranged in the removal path, which can be switched between a closed position in which it closes the removal path, and an open position in which it opens the removal path, a pressure sensor which is connected to a tank-side section of the removal path which extends between the tank container and the isolating valve and is designed to detect the pressure in the tank-side section of the removal path, and a control device which is signal-connected to the valve device and the pressure sensor and is designed to cause the tank system to carry out the steps of a method according to one of the preceding claims.
  • One idea underlying the invention is to record a pressure curve on the tank side of the isolating valve and to evaluate it after the valve has been activated. Since the pressure in the line system before the isolating valve is opened is lower than in the tank container and thus on the tank side of the isolating valve, opening the isolating valve leads to a brief drop in pressure on the tank side. This means that in a tank-side section of a removal path of the valve device, an undershoot in the pressure curve occurs when the isolating valve switches from its closed position to its open position. This brief drop in pressure can be determined or detected by means of a control device in the pressure signal supplied by the pressure sensor.
  • An advantage of the invention is that a non-switching isolating valve can be reliably detected.
  • the actuation of the isolating valve comprises generating a first opening force for opening the isolating valve, wherein, if it is determined that the recorded pressure curve after the actuation of the isolating valve does not contain a pressure drop, the isolating valve is actuated again with a second opening force that is greater than the first opening force, wherein the steps of recording the pressure curve and determining are carried out again. Accordingly, if it is determined during the first actuation of the isolating valve that it does not open, the isolating valve can be actuated again, specifically with an increased opening force. This can further increase operational reliability, since the tank system can continue to be fully functional if the isolating valve can be opened with the increased opening force.
  • the error signal is only output when it is determined again that a pressure drop is not included in the recorded pressure curve after the isolation valve is activated again with the second opening force.
  • a first error signal can be output when a pressure drop is not identified in the recorded pressure curve after the isolation valve is activated for the first time
  • a second error signal can be output when it is determined again that a pressure drop is not included in the recorded pressure curve after the isolation valve is activated again with the second opening force.
  • the isolating valve is designed as an electrically controllable, normally closed solenoid valve, wherein the generation of the first opening force comprises energizing the isolating valve with a first control current, and wherein the generation of the second opening force comprises energizing the isolating valve with a second control current that is greater than the first control current.
  • an enable signal is output when it is determined that the detected pressure curve contains a pressure drop after the isolation valve is activated.
  • issuing the release signal may include generating a release message and writing the release message to a data memory.
  • tank containers are connected to the line system via several valve devices, each of which has a switchable isolating valve, wherein each isolating valve is controlled in order to switch it from the closed position to the open position, wherein a pressure curve in the tank-side section of the extraction path is detected by each isolating valve after the respective isolating valve is controlled, wherein the determination of whether the detected pressure curve after the isolating valve is included in the pressure drop is carried out for each isolating valve, and wherein the error signal is output for each isolating valve for which it is determined that the respective detected pressure curve after the isolating valve is included in the pressure drop is not included.
  • the isolation valves are controlled sequentially or simultaneously.
  • determining whether the detected pressure curve after the activation of the isolating valve contains a pressure drop comprises determining a pressure gradient of the detected pressure curve, and a pressure drop is determined if the pressure gradient assumes values less than zero within a predetermined period of time after the activation.
  • the output of the error signal comprises generating an error message and writing the error message into a data memory.
  • the output of the error signal comprises outputting a warning signal to a user interface.
  • an optical signal can be output on a display device or a warning light of the user interface, or an acoustic or haptic signal can be output.
  • the isolating valve can be designed as an electrically controllable, normally closed solenoid valve.
  • the tank system has a plurality of tank containers which are connected to the line system via a plurality of valve devices, each of which has a switchable isolating valve.
  • Fig. 1 is a schematic view of a hydraulic circuit diagram of a tank system according to an embodiment of the invention
  • Fig. 2 is a detailed view of a valve device of a tank system according to an embodiment of the invention.
  • Fig. 3 shows the sequence of a method according to an embodiment of the invention.
  • Fig. 1 shows a schematic of a tank system 100 for supplying a consumer system 200 with a gaseous fuel, eg hydrogen.
  • the consumer system 200 can be, for example, a fuel cell or a heat engine.
  • the tank system 100 can be used, for example, in a mobile application, such as a vehicle. However, the invention is not limited to this.
  • the tank system 100 has a plurality of tank containers 1, a line system 2, a plurality of valve devices 3 and a control device 5.
  • a user interface 6 can also be provided optionally.
  • a tank system 100 with three tank containers 1 is shown purely by way of example. It is also conceivable that the tank system 100 has only one tank container 1 or a number other than three tank containers 1.
  • Fig. 1 shows by way of example that a valve device 3 is provided for each tank container 1, via which the respective tank container 1 is connected to the line system 2. Alternatively, it is also conceivable that a plurality of tank containers 1 are connected to the line system 2 via a common valve device 3.
  • the tank containers 1 generally define an internal volume and can, for example, be designed to store hydrogen at a nominal pressure of up to 700 bar.
  • the line system 2 can, for example, be a high-pressure line system 2 which is connected to the consumer system 2 via an optional medium-pressure line system 7, which is only symbolically shown as a block in Fig. 1. As shown schematically in Fig. 1, the tanks 1 are connected to the line system 2 in parallel to one another.
  • the valve devices 3 are assigned to the respective tank 1 and connect it to the line system 2.
  • Fig. 2 shows schematically and in a highly simplified manner an exemplary structure of the valve device 3.
  • the valve device 3 has a first internal connection 3A, which is connected to the internal volume of the tank 1, and an external connection 3C, which is connected to the line system 2.
  • a second internal connection 3B can optionally be provided.
  • the valve device 3 has, as shown in Fig. 2, a switchable isolating valve 30 and a pressure sensor 4.
  • a check valve 33 can also be provided.
  • the valve device 3 can have a temperature sensor 35, as shown purely by way of example in Fig. 2.
  • the first internal connection 3A and the external connection 3C are connected to one another by a removal path 31 in which the isolating valve 30, e.g. in the form of an electrically switchable, normally closed solenoid valve, is arranged.
  • the isolating valve 30 divides the removal path 31 into a tank-side section 31A, which extends between the first internal connection 3A and the isolating valve 30, and a line-side section 31B, which extends between the isolating valve 30 and the external connection 3C.
  • the isolating valve 30 can be switched between a closed position and an open position. In Fig. 2, the isolating valve 30 is shown in the closed position.
  • the isolating valve 30 opens the extraction path, i.e., it establishes a fluidic connection of the tank-side and line-side sections 31A, 31B of the extraction path 31 and allows gas to flow out of the tank container 1 from the first internal connection 3A to the external connection 3C.
  • the second internal connection 3B can be connected to the external connection 3C by a filling path 32.
  • the optional check valve 33 is arranged in the filling path 32 and designed such that it only allows a flow from the external connection 3C to the second internal connection 3B. If there is a higher pressure in the line system 2 than in the tank container 1, gas from the line system 2 can flow from the external connection 3C via the second internal connection 3B into the tank container 1 even when the isolating valve 30 is closed.
  • the pressure sensor 4 is connected to the tank-side section 31A of the extraction path 31. The pressure in the tank-side section 31A of the extraction path 31A can thus be detected by means of the pressure sensor 4.
  • the optional temperature sensor 35 can be part of the valve device 3, as shown purely by way of example in Fig. 2.
  • the temperature sensor 35 is arranged such that it is connected to the inner volume of the tank container 1.
  • the temperature sensor 35 can thus be used to measure a temperature in the tank container 1.
  • the control device 5 is shown in Fig. 1 only as a block and can in particular be an electronic control device 5.
  • the control device 5 can, for example, have a processor 50 and a data memory 51.
  • the processor 50 can, for example, be implemented as a CPU, as an FPGA, as an ASIC or the like.
  • the data memory 51 can in particular be a non-volatile data memory, e.g. a flash memory, an SD memory, a hard disk or the like.
  • the data memory 51 can be read by the processor 50 and can, for example, store software that can be executed by the processor 50 and causes it to generate output signals, e.g. in the form of control signals, based on input signals, e.g. in the form of measured values.
  • the control device 5 is signal-connected to the valve devices 3 and the respective pressure sensor 4, e.g. wired via a data bus, such as a CAN bus, USB or the like, or wirelessly, e.g. via WiFi, Bluetooth or the like.
  • control device 5 can be designed to cause the tank system 100 to carry out a method M for testing the switchable isolating valve 30 of the respective valve device 3.
  • the sequence of a method M for testing the switchable isolating valve 30 of the respective valve device 3 is shown schematically in Fig. 3.
  • the method M is based on an initial situation in which a gas, e.g. hydrogen, is stored in the tank container 1 at a first pressure and a second pressure is present in the line system 2 which is lower than the first pressure.
  • the isolating valves 30 are closed in this case.
  • Such an initial situation can be present, for example, before starting or booting up the consumer system 200 connected to the tank system 100.
  • the method M is explained below with reference to the tank system 100 described above.
  • the isolating valve 30 is controlled M1 by means of the control device 5, e.g. by outputting a control signal to the isolating valve 30 in order to switch it from its closed position to its open position.
  • the control signal can in particular cause a first opening force to be generated to open the isolating valve 30.
  • the isolating valve 30, as shown by way of example in Fig. 2 is designed as an electrically controllable, normally closed solenoid valve, the generation of the first opening force can include energizing the isolating valve 30 with a first control current.
  • the isolating valves 30 of the various valve devices 3 can be controlled one after the other or simultaneously.
  • step M2 the pressure in the tank-side section 31A of the removal path 31 in magazines is detected by means of the pressure sensor 4.
  • the control device 5 thus receives a pressure signal which represents a pressure curve.
  • step M3 the control device 5 determines whether the recorded pressure curve after the activation (step M1) of the isolating valve 30 contains a pressure drop.
  • the control device 5 thus evaluates the pressure signals that were recorded after the activation of the isolating valve 30 and checks whether the pressure signals indicate a pressure drop, at least for a limited period of time. For example, the control device 5 can determine a pressure gradient of the recorded pressure curve, with a pressure drop being determined or detected if the pressure gradient assumes values less than zero within a predetermined period of time after the activation.
  • step M3 If it is determined in step M3 that the detected pressure curve after the activation M1 of the isolating valve 30 contains a pressure drop, as shown in Fig. 3 is shown by the symbol "+”, the method can proceed to step M5.
  • the presence of a pressure drop indicates that the respective isolating valve 30 was opened upon activation (step M1).
  • a pressure drop occurs after the isolating valve 30 is opened, which is usually limited in time.
  • the pressure curve therefore contains a type of undershoot.
  • control device 5 can, for example, output a release signal. This can, for example, include generating a release message and writing the release message into the data memory 51.
  • step M3 If it is determined in step M3 that the recorded pressure curve after actuation (step M1) of the isolating valve 30 does not contain a pressure drop, as shown by the symbol in Fig. 3, the method M can go directly to step M4, in which the control device 5 outputs an error signal.
  • Outputting the error signal can, for example, comprise generating an error message and writing the error message to the data memory 51.
  • the control device 5 can also output a warning signal to the user interface 6.
  • the user interface 6, which is shown only symbolically as a block in Fig. 1, can have a display device or a warning light, which is caused by the control device 5 to output an optical signal, or an acoustic or haptic warning signal can be output at the user interface 6.
  • the error signal can be output for each isolating valve 30 for which it is determined that a pressure drop is not included in the respective detected pressure curve after the activation (step M1) of the respective isolating valve 30, e.g. together with an index of the respective isolating valve.
  • step M3 in the event that it is determined in step M3 that the recorded pressure curve after the activation (step M1) of the isolating valve 30 does not contain a pressure drop, the method M can first proceed to step M31.
  • step M31 the control device 5 can increase a count value by one, which indicates how often the isolating valve 30 has been activated since the last closing of the isolating valve 30 in order to move it from the closed position to the open position.
  • the count value is set to zero.
  • step M32 the control device 5 checks whether the count value is less than a predetermined limit value.
  • the limit value can be, for example, an integer between two and ten. If it is determined in step M32 that the counter value is less than the limit value, as shown in Fig. 3 by the symbol "+", the method can go back to step M1.
  • the isolating valve 30 is again controlled by the control device 5, wherein the isolating valve 30 is again controlled with a second opening force that is greater than the first opening force.
  • generating the second opening force can include energizing the isolating valve 30 with a second control current that is greater than the first control current. Steps M2 and M3 are then carried out again as described above.
  • step M3 If it is determined in step M3 that the recorded pressure curve after the isolating valve 30 is actuated again with the second opening force contains a pressure drop (symbol “+” in Fig. 3), the method proceeds to step M5. Otherwise, i.e. if it is determined that the recorded pressure curve after the isolating valve 30 is actuated again with the second opening force does not contain a pressure drop, steps M31 and M32 follow. As long as it is determined in step M32 that the count value is smaller than the limit value (symbol “+”), steps M1 -M3 can follow again, whereby the opening force can optionally be increased further with each iteration. If it is determined in step M32 that the count value reaches the limit value (symbol ), the method proceeds to step M4.
  • the error signal is output in step M4 only if it is determined again at least once that the recorded pressure curve does not contain a pressure drop after the isolation valve has been activated again with the second opening force.
  • step M4 can be carried out each time it is determined in step M3 that the recorded pressure curve after the renewed activation of the isolating valve 30 does not contain a pressure drop, while additionally steps M31 and M32 are carried out. For example, each time a first error signal is output in step M4 if it is determined in step M32 that the count value is less than the limit value If it is determined in step M32 that the count value reaches the limit value (symbol a second error signal can be output in step M4.
  • the output of the first error signal can, for example, only involve the generation and writing of a
  • the output of the second error signal may alternatively or additionally comprise output of a warning signal at the user interface.

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

Abstract

Est divulgué un procédé de test d'une vanne d'isolement commutable d'un dispositif de vanne qui relie un récipient de réservoir à un système de tuyau, un gaz étant stocké à une première pression dans le récipient de réservoir, et le système de tuyau étant à une seconde pression qui est inférieure à la première pression. Le procédé consiste à : actionner la vanne d'isolement pour commuter entre une position fermée, dans laquelle la vanne d'isolement ferme un trajet d'extraction du dispositif de vanne, ledit trajet d'extraction reliant le système de tuyau et le récipient de réservoir, et une position ouverte, dans laquelle la vanne d'isolement ouvre le trajet d'extraction ; détecter un profil de pression dans une partie côté réservoir du trajet d'extraction qui s'étend entre le récipient de réservoir et la vanne d'isolement ; déterminer si le profil de pression détecté après l'actionnement de la vanne d'isolement comprend une chute de pression ; et délivrer un signal d'erreur s'il est déterminé que le profil de pression détecté après l'actionnement de la vanne d'isolement ne comprend pas de chute de pression.
PCT/EP2023/078694 2022-11-14 2023-10-16 Système de réservoir et procédé de test d'une vanne d'isolement dans un système de réservoir WO2024104675A1 (fr)

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DE102022212019.1A DE102022212019A1 (de) 2022-11-14 2022-11-14 Tanksystem und Verfahren zum Prüfen eines Trennventils in einem Tanksystem
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1286104A1 (fr) * 2000-05-12 2003-02-26 Toyota Jidosha Kabushiki Kaisha Dispositif d'alimentation de gaz
DE102006025125A1 (de) * 2005-06-01 2006-12-07 GM Global Technology Operations, Inc., Detroit Verfahren zur Detektion undichter Stellen in Gaszufuhrsystemen mit redundanten Ventilen
US7367349B2 (en) 2005-07-12 2008-05-06 Gm Global Technology Operations, Inc. Method for opening tank shut-off valves in gas feeding systems with connected tanks
EP2287458A2 (fr) * 2009-08-21 2011-02-23 GM Global Technology Operations, Inc. Procédé pour détecter au moins un réservoir de gaz haute pression défaillant
US8675334B2 (en) * 2009-11-18 2014-03-18 Robert Bosch Gmbh Method for operating a tank device especially of a motor vehicle
DE102014019419A1 (de) * 2014-12-22 2016-06-23 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Verfahren und Diagnoseeinrichtung zur Überprüfung von Hochdrucktankventilen, Hochdrucktanksystem und Kraftfahrzeug mit einem Hochdrucktanksystem

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015218233A1 (de) 2015-09-23 2017-03-23 Bayerische Motoren Werke Aktiengesellschaft Druckbehältersystem für ein Kraftfahrzeug, Kraftfahrzeug und Verfahren zur Unterbrechung einer Fluidverbindung
DE102022201956A1 (de) 2022-02-25 2023-08-31 Robert Bosch Gesellschaft mit beschränkter Haftung Verfahren zum Betreiben eines Druckgastanksystems sowie Steuergerät

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1286104A1 (fr) * 2000-05-12 2003-02-26 Toyota Jidosha Kabushiki Kaisha Dispositif d'alimentation de gaz
DE102006025125A1 (de) * 2005-06-01 2006-12-07 GM Global Technology Operations, Inc., Detroit Verfahren zur Detektion undichter Stellen in Gaszufuhrsystemen mit redundanten Ventilen
US7367349B2 (en) 2005-07-12 2008-05-06 Gm Global Technology Operations, Inc. Method for opening tank shut-off valves in gas feeding systems with connected tanks
EP2287458A2 (fr) * 2009-08-21 2011-02-23 GM Global Technology Operations, Inc. Procédé pour détecter au moins un réservoir de gaz haute pression défaillant
US8675334B2 (en) * 2009-11-18 2014-03-18 Robert Bosch Gmbh Method for operating a tank device especially of a motor vehicle
DE102014019419A1 (de) * 2014-12-22 2016-06-23 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Verfahren und Diagnoseeinrichtung zur Überprüfung von Hochdrucktankventilen, Hochdrucktanksystem und Kraftfahrzeug mit einem Hochdrucktanksystem

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