Temperature regulation module, control method and processor for a hydrogen storage system

Abstract

This application discloses a temperature regulation module, a control method, a processor, and a hydrogen storage system for a hydrogen storage system. The temperature regulation module includes a heat exchanger, a cooling external circulation pipeline unit, a heating circulation pipeline unit, a heat exchange circulation pipeline unit, a cooling internal circulation pipeline unit, an internal heating pipeline unit, and a second heat medium outflow pipeline unit. The heat exchange circulation pipeline unit has a heat absorption end and a heat dissipation end. The cooling internal circulation pipeline unit passes through the heat absorption end and is used to cool the cold medium in the cold medium tank. The internal heating pipeline unit passes through the heat dissipation end and can use the heat dissipated by the heat dissipation end to convert the first heat medium in the first heat medium tank into a second heat medium flowing into the second heat medium tank. The second heat medium outflow pipeline unit is used to transport the second heat medium in the second heat medium tank to the heat exchanger. This method has advantages such as uniform temperature regulation inside the hydrogen storage device, higher efficiency, and reduced energy waste.

Description

Technical Field

[0001] This application belongs to the field of hydrogen storage system technology, specifically relating to a temperature regulation module for a hydrogen storage system, a control method for a hydrogen storage system, a processor, and a hydrogen storage system. Background Technology

[0002] Before filling or releasing hydrogen, the internal temperature of a hydrogen storage device needs to be adjusted to a suitable temperature. However, the temperature regulation modules used in existing technologies for regulating the internal temperature of hydrogen storage devices generally suffer from problems such as uneven temperature regulation, long time consumption, high energy consumption, and low temperature regulation efficiency. Summary of the Invention

[0003] The purpose of this application is to provide a temperature regulation module for a hydrogen storage system, a control method for a hydrogen storage system, a processor, and a hydrogen storage system. The temperature regulation module for the hydrogen storage system has advantages such as uniform temperature regulation inside the hydrogen storage device, higher efficiency, and reduced energy waste.

[0004] To achieve the above objectives, the first aspect of this application provides a temperature regulation module for a hydrogen storage system, the temperature regulation module comprising:

[0005] Heat exchangers are used to transfer heat or cold to hydrogen storage devices. Refrigeration external circulation piping unit, used for refrigeration heat exchange components; Heating circulation piping unit, used to heat heat exchange components; The heat exchange circulation piping unit has heat absorption ends and heat dissipation ends that are spaced apart. The internal cooling circulation piping unit is connected to the cold medium tank of the external cooling circulation piping unit and passes through the heat absorption end to cool the cold medium in the cold medium tank. The internal heating pipeline unit is connected to the first heat medium tank of the heating circulation pipeline unit and passes through the heat dissipation end. The internal heating pipeline unit can use the heat dissipated by the heat dissipation end to convert the first heat medium in the first heat medium tank into a second heat medium flowing into the second heat medium tank, wherein the temperature of the second heat medium is greater than the temperature of the first heat medium. The second heat medium outflow pipeline unit is used to transport the second heat medium in the second heat medium tank to the heat exchanger.

[0006] In embodiments of this application, the refrigeration internal circulation piping unit includes: The refrigeration circulation pipeline has one end connected to one connection end of the cold medium tank, and the other end of the refrigeration circulation pipeline passes through the heat dissipation end and is connected to the other connection end of the cold medium tank. The second pumping component is installed on the refrigeration circulation pipeline and located between the cold medium box and the heat absorption end; The fifteenth switching valve is installed on the refrigeration circulation pipeline and located between the cold medium tank and the second pumping component; The sixteenth switching valve is installed on the refrigeration cycle pipeline and located between the cold medium tank and the heat absorption end.

[0007] In embodiments of this application, the internal heating piping unit includes: The internal heating pipe has one end connected to the first heat medium tank and the other end connected to the second heat medium tank after passing through the heat dissipation end. The third pumping component is installed on the internal heating pipeline and located between the heat dissipation end and the first heat medium tank; The seventeenth switching valve is installed on the internal heating pipeline and located between the first heat medium tank and the third pumping component; The eighteenth switching valve is installed on the internal heating pipeline and located between the second heat medium tank and the heat dissipation end.

[0008] In embodiments of this application, the heat exchange circulation piping unit includes: compressor; The heat exchange circulation pipeline has one end connected to the outlet end of the compressor, and the other end connected to the inlet end of the compressor after passing through the heat dissipation end and the heat absorption end in sequence. The heat exchange circulation pipeline contains a heat exchange medium that flows under the driving action of the compressor. The heat absorption end is used to transfer the heat of the cold medium in the refrigeration internal circulation pipeline unit to the heat exchange medium, and the heat dissipation end is used to transfer the heat of the heat exchange medium to the first heat medium in the internal heating pipeline. The thirteenth switching valve is installed on the heat exchange circulation pipeline and located between the compressor and the heat absorption end; The fourteenth switching valve is installed on the heat exchange circulation pipeline and located between the compression and heat dissipation ends.

[0009] A second aspect of this application provides a control method for a hydrogen storage system, the control method employing the aforementioned temperature regulation module and including: Determine that the hydrogen storage system has ended its hydrogen charging mode; Control the external circulation cooling piping unit to be in the off state; The refrigeration internal circulation pipeline unit, the internal heating pipeline unit, and the heat exchange circulation pipeline unit are controlled to cooperate in performing heat exchange operations, so as to cool down the cold medium circulating in the refrigeration internal circulation pipeline unit and heat up the first hot medium flowing in the internal heating pipeline unit. The first hot medium becomes the second hot medium after being heated. Once the heat exchange operation is confirmed to be complete, the internal heating piping unit is kept in the off state. The hydrogen storage system has been confirmed to have entered hydrogen release mode; The control unit for the second heat medium outflow pipeline and the heating circulation pipeline unit cooperate to perform hydrogen release temperature regulation operation, so that the first heat medium supplied by the heating circulation pipeline unit and the second heat medium supplied by the second heat medium outflow pipeline unit work together to regulate the internal temperature of the hydrogen storage device to the preset hydrogen release temperature. The first heat medium flows out from the first heat medium tank of the internal heating pipeline unit, and the second heat medium flows out from the second heat medium tank of the internal heating pipeline unit.

[0010] In the embodiments of this application, controlling the refrigeration internal circulation pipeline unit, the internal heating pipeline unit, and the heat exchange circulation pipeline unit to cooperate in performing heat exchange operations includes: The process of controlling the circulation of cold medium in the refrigeration internal circulation pipeline unit to perform heat exchange operation, so that the cold medium inside the refrigeration internal circulation pipeline unit is cooled down after passing through the heat absorption end of the heat exchange circulation pipeline unit. The heat exchange process controls the heat exchange circulation pipeline unit to perform heat exchange operations, so that the heat absorption end of the heat exchange circulation pipeline unit absorbs the heat of the cold medium and the heat dissipation end of the heat exchange circulation pipeline unit dissipates the heat outward. The first heat medium flow process controls the internal heating pipeline unit to perform heat exchange operation, so that the first heat medium flowing out of the first heat medium tank absorbs heat and rises in temperature after passing through the heat dissipation end, and becomes the second heat medium flowing into the second heat medium tank.

[0011] In the embodiments of this application, the hydrogen storage device is housed in a heat exchanger, and a medium receiving cavity is formed between the heat exchanger and the hydrogen storage device. The control of the second hot medium outflow pipeline unit and the heating circulation pipeline unit to cooperate in performing the hydrogen release temperature regulation operation includes: The second heat medium delivery process controls the second heat medium outflow pipeline unit to perform hydrogen release temperature regulation operation, so as to deliver the second heat medium to the heating circulation pipeline unit; The heating circulation pipeline unit controls the hot medium circulation flow process of performing hydrogen release temperature regulation operation, so that the heating circulation pipeline unit delivers the mixed hot medium of the first hot medium and the second hot medium to the medium receiving cavity, and delivers the medium receiving cavity flowing out of the medium receiving cavity to the first hot medium tank. The mixed hot medium raises the temperature inside the hydrogen storage device to the preset hydrogen release temperature after flowing into the medium receiving cavity.

[0012] In the embodiments of this application, the hydrogen storage device is housed in a heat exchanger, and a medium-containing cavity is formed between the heat exchanger and the hydrogen storage device. The control method further includes: The hydrogen storage system has been confirmed to be in hydrogen charging mode. The cooling external circulation pipeline unit is controlled to perform a cold medium circulation operation, so that the cooling external circulation pipeline unit delivers the cold medium in the cold medium tank to the medium receiving cavity, and delivers the cold medium flowing out of the medium receiving cavity to the cold medium tank. The cold medium flows into the medium receiving cavity and reduces the temperature inside the hydrogen storage device to the preset hydrogen charging temperature.

[0013] In embodiments of this application, the hydrogen storage system further includes a hydrogen delivery pipeline module and a venting pipeline unit and a vacuuming pipeline unit connected to the hydrogen delivery pipeline module. The control method further includes: After confirming that the hydrogen storage system has entered the hydrogen charging mode, the control release pipeline unit and the hydrogen transmission pipeline module cooperate to perform the first pressure relief operation to relieve pressure on the hydrogen transmission pipeline module; The vacuum pumping pipeline unit and the hydrogen delivery pipeline module work together to perform the first vacuum pumping operation, so as to extract the residual hydrogen in the hydrogen delivery pipeline module to the outside. After the first vacuuming operation is completed, the refrigeration external circulation piping unit is controlled to perform a refrigerant circulation operation; and, After the hydrogen storage system ends the hydrogen charging mode, the control release pipeline unit, the vacuum pipeline unit, and the hydrogen delivery pipeline module cooperate to perform a second depressurization operation to depressurize the inside of the hydrogen delivery pipeline module.

[0014] In embodiments of this application, the hydrogen storage system further includes a hydrogen delivery pipeline module and a venting pipeline unit and a vacuuming pipeline unit connected to the hydrogen delivery pipeline module. The control method further includes: After determining that the hydrogen storage system has entered the hydrogen release mode, the control release pipeline unit and the hydrogen transmission pipeline module cooperate to perform the third pressure relief operation to relieve pressure on the hydrogen transmission pipeline module. The control vacuuming pipeline unit and the hydrogen delivery pipeline module cooperate to perform the second vacuuming operation to extract the residual hydrogen in the hydrogen delivery pipeline module. After the second vacuuming operation is completed, the control unit for the second hot medium outflow pipeline and the heating circulation pipeline unit work together to perform hydrogen release temperature regulation; and, After the hydrogen storage system ends the hydrogen release mode, the control release pipeline unit, vacuum pipeline unit and hydrogen delivery pipeline module cooperate to perform the fourth pressure relief operation to relieve pressure inside the hydrogen delivery pipeline module.

[0015] A third aspect of this application provides a processor configured to perform the control method described above for a hydrogen storage system.

[0016] The fourth aspect of this application provides a hydrogen storage system, which includes a temperature regulation module and the processor described above.

[0017] As can be seen from the above technical solution, the temperature regulation module for the hydrogen storage system includes a heat exchanger, a refrigeration external circulation pipeline unit, a heating circulation pipeline unit, a heat exchange circulation pipeline unit, a refrigeration internal circulation pipeline unit, an internal heating pipeline unit, and a second heat medium outflow pipeline unit. The heat exchanger is used to conduct heat or cold to the hydrogen storage device; the refrigeration external circulation pipeline unit is used to refrigerate the heat exchanger; the heating circulation pipeline unit is used to heat the heat exchanger; the heat exchange circulation pipeline unit has spaced-apart heat absorption ends and heat dissipation ends; the refrigeration internal circulation pipeline unit is connected to the cold medium tank of the refrigeration external circulation pipeline unit and passes through the heat absorption end, and is used to cool the cold medium in the cold medium tank; the internal heating pipeline unit is connected to the first heat medium tank of the heating circulation pipeline unit and passes through the heat dissipation end, and the internal heating pipeline unit can use the heat dissipated by the heat dissipation end to convert the first heat medium in the first heat medium tank into a second heat medium flowing into the second heat medium tank, wherein the temperature of the second heat medium is greater than the temperature of the first heat medium; the second heat medium outflow pipeline unit is used to transport the second heat medium in the second heat medium tank to the heat exchanger. The above-mentioned setup reuses the heat generated by the cooling of the cold medium. The hydrogen storage device is heated by the second hot medium in the second hot medium tank and the first hot medium in the first hot medium tank. This shortens the heating efficiency of the hydrogen storage device and the heating time of the hydrogen storage device, which helps to improve the user experience of the hydrogen storage system.

[0018] Other features and advantages of the embodiments of this application will be described in detail in the following detailed description section. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the embodiments of this application and form part of the specification. They are used together with the following detailed description to explain the embodiments of this application, but do not constitute a limitation on the embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without any inventive effort. In the drawings: Figure 1 This is a schematic diagram of the main flow of the control method in the embodiments of this application; Figure 2 This is a schematic diagram of the structure of the hydrogen flow monitoring device in the embodiments of this application; Figure 3 This is a schematic diagram of the structural composition of the temperature regulation module in an embodiment of this application.

[0020] Explanation of reference numerals in the attached figures 1-Hydrogen source; 2-First piping unit; 201-First flow detection element; 202-First piping; 203-Third switching valve; 204-Fourth switching valve; 205-Pressure regulator; 206-First pressure detection element; 207-Eighth switching valve; 208-Second pressure detection element; 3-Hydrogen storage device; 4-Second piping unit; 401-Volume chamber; 402-Second piping; 403-First switching valve; 404-Second switching valve; 405-Volume chamber pressure detection element; 40 6-Volume chamber temperature detection element; 5-Release pipeline unit; 501-First release pipeline assembly; 5011-First release pipeline; 5012-Fifth switching valve; 5013-Second flow detection element; 502-Second release pipeline assembly; 5021-Second release pipeline; 5022-Sixth switching valve; 6-Vacuum pumping pipeline unit; 601-Suction pipeline; 602-Seventh switching valve; 603-Suction component; 7-Temperature control module; 701-Heat exchanger; 702-Hydrogen storage device Temperature sensing element; 703-First circulation pipeline; 704-Cold medium tank; 705-Ninth switching valve; 706-Tenth switching valve; 707-First pumping element; 708-Second circulation pipeline; 709-First heat medium tank; 710-Eleventh switching valve; 711-Twelfth switching valve; 712-Heat exchange circulation pipeline; 713-Compressor; 714-Heat absorption element; 715-Heat dissipation element; 716-Thirteenth switching valve; 717-Fourteenth switching valve; 718-Expansion valve; 71 9-Refrigeration circulation piping; 720-Second pumping unit; 721-Second heat medium tank; 722-Fifteenth switching valve; 723-Sixteenth switching valve; 724-Internal heating piping; 725-Third pumping unit; 726-Seventeenth switching valve; 727-Eighteenth switching valve; 728-Second heat medium piping; 729-Nineteenth switching valve; 730-First temperature detection unit; 731-Second temperature detection unit; 732-Third temperature detection unit; 8-Processor; 9-Operation input unit. Detailed Implementation

[0021] The specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this application.

[0022] Embodiments of this application provide a temperature regulation module for a hydrogen storage system, such as... Figure 3 As shown, the temperature regulation module 7 includes: Heat exchanger 701 is used to transfer heat or cold to hydrogen storage device 3; Refrigeration external circulation piping unit, used for refrigeration heat exchanger 701; A heating circulation piping unit is used to heat heat exchanger 701; The heat exchange circulation piping unit has heat absorption ends and heat dissipation ends that are spaced apart. The internal cooling circulation piping unit is connected to the cold medium tank 704 of the external cooling circulation piping unit and passes through the heat absorption end, and is used to cool the cold medium in the cold medium tank 704. The internal heating pipeline unit is connected to the first heat medium tank 709 of the heating circulation pipeline unit and passes through the heat dissipation end. The internal heating pipeline unit can use the heat dissipated by the heat dissipation end to convert the first heat medium in the first heat medium tank 709 into a second heat medium flowing into the second heat medium tank 721. The temperature of the second heat medium is greater than the temperature of the first heat medium. The second heat medium outflow pipeline unit is used to transport the second heat medium in the second heat medium tank 721 to the heat exchanger 701.

[0023] Specifically, in this embodiment, the heat exchanger 701 can be a water bath heat exchanger, the hydrogen storage device 3 is disposed inside the heat exchanger 701, and the temperature regulation module 7 also includes a hydrogen storage device temperature detection element 702 disposed on the hydrogen storage device 3 and used to detect the internal temperature of the hydrogen storage device 3. The hydrogen storage device temperature detection element 702 can be a temperature sensor and a processor 8. The heating circulation pipeline unit, the cooling external circulation pipeline unit, the hydrogen storage device temperature detection element 702, the heat exchange circulation pipeline unit, the cooling internal circulation pipeline unit, the internal heating pipeline unit, and the second heat medium outflow pipeline unit are all communicatively connected to the processor 8. During the hydrogen charging stage, which requires adding hydrogen to the hydrogen storage device 3 or for activation, the internal temperature of the hydrogen storage device 3 needs to be adjusted to a preset hydrogen charging temperature. The processor 8 controls the cooling external circulation pipeline unit to perform a cooling operation. The hydrogen storage device temperature detection element 702 detects the real-time hydrogen charging temperature inside the hydrogen storage device 3 in real time and sends the temperature detection result to the processor 8. The processor 8 then compares the real-time hydrogen charging temperature with the pre-stored preset hydrogen charging temperature. When the real-time hydrogen charging temperature reaches the preset hydrogen charging temperature, the processor 8 controls the cooling external circulation pipeline unit to stop performing the cooling operation. Similarly, during the hydrogen release stage, which requires releasing hydrogen from the hydrogen storage device 3 or for activation, the internal temperature of the hydrogen storage device 3 needs to be adjusted to a preset hydrogen release temperature. The processor 8 controls the heating circulation pipeline unit to perform a heating operation. The hydrogen storage device temperature detection element 702 detects the real-time hydrogen release temperature inside the hydrogen storage device 3 in real time and sends the temperature detection result to the processor 8. The processor 8 then compares the real-time hydrogen release temperature with the pre-stored preset hydrogen release temperature. When the real-time hydrogen release temperature reaches the preset hydrogen release temperature, the processor 8 controls the heating circulation pipeline unit to stop performing the heating operation.

[0024] Furthermore, after the external cooling circulation pipeline unit completes its operation, the processor 8 controls the heat exchange circulation pipeline unit, the internal cooling circulation pipeline unit, and the internal heating pipeline unit to start operating. The heat exchange circulation pipeline unit has a circulating heat exchange medium inside. The cold medium (such as cold water) in the cold medium tank 704 circulates in the internal cooling circulation pipeline unit. When the heat exchange medium and the cold medium in the cold medium tank 704 flow through the heat absorption end, heat transfer occurs. The heat of the cold medium in the cold medium tank 704 is absorbed by the heat exchange medium. Therefore, the cold medium flowing out of the heat absorption end is cooled down and then flows back into the cold medium tank 704. The temperature of the heat exchange medium flowing out of the heat absorption end increases. The cold medium circulates in the internal cooling circulation pipeline unit, and the temperature of the cold medium in the cold medium tank 704 continuously decreases. While the above process is in progress, the first heat medium (such as hot water) in the first heat medium tank 709 flows out and absorbs the heat of the heat exchange medium when it passes through the heat dissipation end. After absorbing the above heat, the first heat medium becomes the second heat medium (such as high-temperature hot water; in this embodiment, the temperature of the high-temperature hot water is greater than that of the hot water). When the internal temperature of the hydrogen storage device 3 needs to be adjusted to the preset hydrogen release temperature, both the second heat medium outflow pipeline unit and the heating circulation pipeline unit are opened. The second heat medium in the second heat medium tank 721 and the first heat medium in the first heat medium tank 709 mix and flow into the fluid receiving cavity, where the hydrogen storage device 3 absorbs heat. This arrangement reuses the heat generated by the cooling of the cold medium. By using the second heat medium in the second heat medium tank 721 and the first heat medium in the first heat medium tank 709 to jointly heat the hydrogen storage device 3, the heating efficiency of the hydrogen storage device 3 is shortened, the heating time of the hydrogen storage device 3 is shortened, and the user experience of the hydrogen storage system is improved.

[0025] Furthermore, the refrigeration external circulation pipeline unit in this embodiment includes a first circulation pipeline 703, a cold medium tank 704, a ninth switching valve 705, a tenth switching valve 706, and a first pumping component 707. The two ends of the first circulation pipeline 703 are respectively connected to a first connecting port and a second connecting port. The cold medium tank 704 is disposed on the first circulation pipeline 703 and is used to provide cold medium. The ninth switching valve 705 is disposed on the first circulation pipeline 703 and is located on one side of the cold medium tank 704. The tenth switching valve 706 is disposed on the first circulation pipeline 703 and is located on the side of the cold medium tank 704 away from the fifth switching valve 5012. The first pumping component 707 is disposed on the first circulation pipeline 703 and is used to pump the liquid flowing out of the fluid receiving chamber.

[0026] The ninth and tenth switching valves 705 and 706 can be selected as solenoid valves, and the first pumping component 707 can be selected as a water pump. All three valves are communicatively connected to the processor 8. Since the ninth and tenth switching valves 705 and 706 are open when cooling the hydrogen storage device 3, and the first pumping component 707 is activated, the processor 8 controls the ninth and tenth switching valves 705 and 706 to close, and controls the first pumping component 707 to stop pumping, thus stopping the cooling of the hydrogen storage device 3.

[0027] Furthermore, the two ends of the second heat medium outflow pipeline unit are respectively connected to the second heat medium tank 721 and the first circulation pipeline 703. The connection position between the second heat medium outflow pipeline unit and the first circulation pipeline 703 is located between the first connection port and the first end of the second circulation pipeline 708. The second heat medium outflow pipeline unit includes a second heat medium pipeline 728 and a nineteenth switch valve 729. The two ends of the second heat medium pipeline 728 are respectively connected to the second heat medium tank 721 and the first circulation pipeline 703. The nineteenth switch valve 729 is installed on the second heat medium pipeline 728 and is communicatively connected to the processor 8. The processor 8 controls the nineteenth switch valve 729 to open, so that the second heat medium in the second heat medium tank 721 can flow out through the second heat medium pipeline 728.

[0028] Furthermore, the heating circulation pipeline unit includes a second circulation pipeline 708, a first heat medium tank 709, an eleventh switching valve 710, and a twelfth switching valve 711. Both ends of the second circulation pipeline 708 are connected to the first circulation pipeline 703. The connection point between the first end of the second circulation pipeline 708 and the first circulation pipeline 703 is located between the ninth switching valve 705 and the heat exchanger 701. The connection point between the second end of the second circulation pipeline 708 and the first circulation pipeline 703 is located between the tenth switching valve 706 and the first pumping component 707. The first heat medium tank 709 is disposed on the second circulation pipeline 708. The eleventh switching valve 710 is disposed on the second circulation pipeline 708 and located on one side of the first heat medium tank 709. The twelfth switching valve 711 is disposed on the second circulation pipeline 708 and located on the side of the first heat medium tank 709 away from the seventh switching valve 602.

[0029] Furthermore, in this embodiment, the eleventh switching valve 710 and the twelfth switching valve 711 can be selected as solenoid valves. The processor 8 controls the eleventh switching valve 710 and the twelfth switching valve 711 to open, and controls the first pumping component 707 to start the pumping function. After the first heat medium (such as hot water) in the first heat medium tank 709 flows out, it flows into a part of the first circulation pipeline 703 through a part of the second circulation pipeline 708 and mixes with the second heat medium (such as high-temperature hot water) flowing out of the second heat medium pipeline 728. The mixed heat medium formed by the two enters the fluid containment cavity through the first communication port and is absorbed by the hydrogen storage device 3. After the hydrogen storage device 3 absorbs heat, its internal temperature can rise to the preset hydrogen release temperature.

[0030] In one embodiment of this application, the refrigeration internal circulation piping unit includes: The refrigeration circulation pipe 719 has one end connected to one connection end of the cold medium tank 704, and the other end of the refrigeration circulation pipe 719 is connected to the other connection end of the cold medium tank 704 after passing through the heat dissipation end. The second pumping component 720 is installed on the refrigeration circulation pipeline 719 and located between the cold medium box 704 and the heat absorption end; The fifteenth switching valve 722 is installed on the refrigeration cycle pipeline 719 and located between the cold medium tank 704 and the second pumping component 720; The sixteenth switching valve 723 is installed on the refrigeration circulation pipeline 719 and located between the cold medium tank 704 and the heat absorption end.

[0031] Specifically, the cold medium tank 704 is connected to the first circulation pipeline 703 through two other connection terminals (i.e., the cold medium tank 704 has four connection terminals in this embodiment). In this embodiment, the second pumping component 720 can be a water pump, and the fifteenth switching valve 722 and the sixteenth switching valve 723 can both be solenoid valves. The second pumping component 720, the fifteenth switching valve 722, and the sixteenth switching valve 723 are all communicatively connected to the processor 8. The processor 8 controls the fifteenth switching valve 722 and the sixteenth switching valve 723 to open, and controls the second pumping component 720 to perform the pumping function, thereby realizing the circulation of the cold medium in the refrigeration circulation pipeline 719 and cooling it during the circulation process.

[0032] In one embodiment of this application, the internal heating piping unit includes: An internal heating pipe 724 is provided, with one end of the internal heating pipe 724 connected to the first heat medium tank 709 and the other end of the internal heating pipe 724 connected to the second heat medium tank 721 after passing through the heat dissipation end. The third pumping component 725 is installed on the internal heating pipe 724 and located between the heat dissipation end and the first heat medium box 709; The seventeenth switching valve 726 is installed on the internal heating pipe 724 and located between the first heat medium tank 709 and the third pumping component 725; The eighteenth switching valve 727 is installed on the internal heating pipe 724 and located between the second heat medium tank 721 and the heat dissipation end.

[0033] Specifically, in this embodiment, the third pumping component 725 can be selected as a water pump, and the seventeenth and eighteenth switching valves 726 and 727 can both be selected as solenoid valves. The third pumping component 725, the seventeenth switching valve 726, and the eighteenth switching valve 727 are all communicatively connected to the processor 8. The processor 8 controls the seventeenth switching valve 726 and the eighteenth switching valve 727 to open, and controls the third pumping component 725 to perform the pumping function. This enables the first heat medium to absorb the heat dissipated by the heat exchange medium and be heated into the second heat medium after flowing out of the first heat medium tank 709. The second heat medium then flows into the second heat medium tank 721.

[0034] In one embodiment of this application, the heat exchange circulation piping unit includes: Compressor 713; The heat exchange circulation pipeline 712 has one end connected to the outlet end of the compressor 713, and the other end connected to the inlet end of the compressor 713 after passing through the heat dissipation end and the heat absorption end in sequence. The heat exchange circulation pipeline 712 has a heat exchange medium flowing under the driving action of the compressor 713. The heat absorption end is used to transfer the heat of the cold medium in the refrigeration internal circulation pipeline unit to the heat exchange medium, and the heat dissipation end is used to transfer the heat of the heat exchange medium to the first heat medium in the internal heating pipeline 724. The thirteenth switching valve 716 is installed on the heat exchange circulation pipeline 712 and located between the compressor 713 and the heat absorption end; The fourteenth switching valve 717 is installed on the heat exchange circulation pipeline 712 and located between the compression 713 and the heat dissipation end.

[0035] Specifically, in this embodiment, the heat exchange medium can be selected as cooling water. The heat absorption end and heat dissipation end of the heat exchange circulation pipeline unit are heat absorption element 714 and heat dissipation element 715, respectively. Both heat absorption element 714 and heat dissipation element 715 can be selected as heat exchangers. The thirteenth switch valve 716 and the fourteenth switch valve 717 can be selected as solenoid valves. The compressor 713, heat absorption element 714, heat dissipation element 715, thirteenth switch valve 716, and fourteenth switch valve 717 are all communicatively connected to the processor 8. By controlling the compressor 713, heat absorption element 714, heat dissipation element 715, thirteenth switch valve 716, and fourteenth switch valve 717 to open, the heat exchange medium can be circulated in the heat exchange circulation pipeline 712. This allows the heat exchange medium to absorb heat from the cold medium when passing through the heat absorption element 714 and conduct heat to the first hot medium when passing through the heat dissipation element 715. This enables the utilization of waste heat during the cooling process of the cold medium, reduces energy waste, and helps to shorten the heating time of the hydrogen storage device 3.

[0036] Another embodiment of this application provides a control method for a hydrogen storage system, such as... Figure 1 As shown, the control method uses the temperature regulation module 7 in the above embodiment and includes the following steps: Step S101: Determine that the hydrogen storage system has ended its hydrogen charging mode; Step S102: Control the external circulation cooling pipeline unit to be in the off state.

[0037] Specifically, since the ninth switch valve 705 and the tenth switch valve 706 are in the open state when the hydrogen storage device 3 is cooled, and the first pumping component 707 starts pumping, in step S102, the processor 8 controls the ninth switch valve 705 and the tenth switch valve 706 to close, and controls the first pumping component 707 to turn off the pumping function, so as to stop cooling the hydrogen storage device 3.

[0038] Step S103: Control the refrigeration internal circulation pipeline unit, the internal heating pipeline unit and the heat exchange circulation pipeline unit to cooperate in performing heat exchange operations, so as to cool down the cold medium circulating in the refrigeration internal circulation pipeline unit and heat up the first hot medium flowing in the internal heating pipeline unit, wherein the first hot medium becomes the second hot medium after being heated.

[0039] In one embodiment of this application, step S103, which involves controlling the refrigeration internal circulation pipeline unit, the internal heating pipeline unit, and the heat exchange circulation pipeline unit to cooperate in performing heat exchange operations, further includes the following steps: Step S201: Control the cold medium circulation flow process of the refrigeration internal circulation pipeline unit to perform heat exchange operation, so that the cold medium inside the refrigeration internal circulation pipeline unit is cooled down after passing through the heat absorption end of the heat exchange circulation pipeline unit. Step S202: Control the heat exchange circulation pipeline unit to perform the heat exchange process, so that the heat absorption end of the heat exchange circulation pipeline unit absorbs the heat of the cold medium and the heat dissipation end of the heat exchange circulation pipeline unit dissipates the heat outward. Step S203: Control the internal heating pipeline unit to perform the first heat medium flow process of heat exchange operation, so that the first heat medium flowing out of the first heat medium tank 709 absorbs heat and rises in temperature after passing through the heat dissipation end, and becomes the second heat medium flowing into the second heat medium tank 721.

[0040] Specifically, in step S201, the processor 8 controls the fifteenth switch valve 722 and the sixteenth switch valve 723 to open, and controls the second pumping component 720 to perform the pumping function, so that the cold medium can circulate in the refrigeration circulation pipeline 719 and be cooled during the circulation process.

[0041] The refrigeration circulation pipeline 719 is connected to the cold medium tank 704 and passes through the heat absorption component 714 to cool the cold medium in the cold medium tank 704. The internal heating pipeline unit is connected to the first heat medium tank 709 of the heating circulation pipeline unit and passes through the heat dissipation component 715. The internal heating pipeline unit can use the heat dissipation component 715 to convert the first heat medium in the first heat medium tank 709 into the second heat medium flowing into the second heat medium tank 721.

[0042] After the external cooling circulation pipeline unit stops working, the processor 8 controls the heat exchange circulation pipeline unit and the internal cooling circulation pipeline unit to start working. The heat exchange circulation pipeline unit has a circulating heat exchange medium inside. The cold medium in the cold medium tank 704 circulates in the internal cooling circulation pipeline unit. When the heat exchange medium and the cold medium in the cold medium tank 704 flow through the heat absorber 714, heat transfer occurs. The heat of the cold medium in the cold medium tank 704 is absorbed by the heat exchange medium. Therefore, the cold medium flowing out of the heat absorber 714 is cooled down and then flows back into the cold medium tank 704. The temperature of the heat exchange medium flowing out of the heat absorber 714 increases. The cold medium circulates in the internal cooling circulation pipeline unit, and the temperature of the cold medium in the cold medium tank 704 continuously decreases. While the above process is going on, the first hot medium in the first hot medium tank 709 flows out and absorbs the heat of the heat exchange medium when it passes through the heat sink 715. After absorbing the above heat, the first hot medium becomes the second hot medium.

[0043] In step S202, the compressor 713, heat absorber 714, heat dissipation component 715, thirteenth switch valve 716, and fourteenth switch valve 717 are all opened, which enables the heat exchange medium to circulate in the heat exchange circulation pipeline 712. This allows the heat exchange medium to absorb heat from the cold medium when passing through the heat absorber 714 and conduct heat to the first hot medium when passing through the heat dissipation component 715. This enables the utilization of waste heat during the cooling process of the cold medium, reduces energy waste, and helps to shorten the heating time of the hydrogen storage device 3.

[0044] Furthermore, the heat exchange circulation pipeline unit also includes an expansion valve 718 disposed on the heat exchange circulation pipeline 712 and located between the fourteenth switching valve 717 and the heat sink 715.

[0045] In step S203, the processor 8 controls the seventeenth switch valve 726 and the eighteenth switch valve 727 to open, and controls the third pumping component 725 to perform the pumping function, so that the first heat medium absorbs the heat emitted by the heat exchange medium after flowing out of the first heat medium tank 709 and is heated into the second heat medium, and the second heat medium then flows into the second heat medium tank 721.

[0046] Furthermore, the hydrogen storage system also includes a first temperature detection element 730, a second temperature detection element 731, and a third temperature detection element 732, which are communicatively connected to the processor 8. The first temperature detection element 730 is disposed in the cold medium tank 704 and is used to detect the temperature of the cold medium in the cold medium tank 704; the second temperature detection element 731 is disposed in the first hot medium tank 709 and is used to detect the temperature of the first hot medium in the first hot medium tank 709; and the third temperature detection element 732 is disposed in the second hot medium tank 721 and is used to detect the temperature of the second hot medium in the second hot medium tank 721.

[0047] Step S104: Once the heat exchange operation is confirmed to be complete, control the refrigeration internal circulation pipeline unit, the internal heating pipeline unit, and the heat exchange circulation pipeline unit to stop working.

[0048] Specifically, the processor 8 has a preset cooling temperature (in this embodiment, the preset cooling temperature can be pre-input into the processor 8 by the operator through the operation input device 9). In step S201, the first temperature detection device 730 detects the temperature of the cold medium in the cold medium tank 704 in real time and sends the detection result to the processor 8. The processor 8 compares the received temperature with the preset cooling temperature. If the temperature detected by the first temperature detection device 730 reaches the preset cooling temperature, the heat exchange operation is determined to be completed. The processor 8 controls the compressor 713, the heat absorption device 714, the heat dissipation device 715, the thirteenth switch valve 716, the fourteenth switch valve 717, the fifteenth switch valve 722, the sixteenth switch valve 723, the second pumping device 720, the seventeenth switch valve 726, the eighteenth switch valve 727, and the third pumping device 725 to stop in order to avoid wasting energy.

[0049] Step S105: Determine that the hydrogen storage system has entered the hydrogen release mode.

[0050] Specifically, the hydrogen storage system also includes an operation input device 9 (such as a keyboard or touch screen). The processor 8 is connected to the operation input device 9. The operator can activate the hydrogen release function of the hydrogen storage system by operating the hydrogen release button on the operation input device 9. After the hydrogen release button is pressed, it sends a corresponding signal to the processor 8. After receiving the signal, the processor 8 can determine that the hydrogen storage system has entered the hydrogen release mode.

[0051] Step S106: Control the second heat medium outflow pipeline unit and the heating circulation pipeline unit to cooperate in performing hydrogen release temperature adjustment operation, so that the first heat medium delivered by the heating circulation pipeline unit and the second heat medium delivered by the second heat medium outflow pipeline unit work together to adjust the internal temperature of the hydrogen storage device 3 to the preset hydrogen release temperature. The first heat medium flows out from the first heat medium tank 709 of the internal heating pipeline unit, and the second heat medium flows out from the second heat medium tank 721 of the internal heating pipeline unit.

[0052] In one embodiment of this application, the hydrogen storage device 3 is housed in a heat exchanger 701, and a medium receiving cavity is formed between the heat exchanger 701 and the hydrogen storage device 3. The step S106, which controls the second hot medium outflow pipeline unit and the heating circulation pipeline unit to cooperate in performing the hydrogen release temperature regulation operation, includes the following operations: Step S301: Control the second heat medium outflow pipeline unit to perform the hydrogen release temperature regulation operation of the second heat medium delivery process, so as to deliver the second heat medium to the heating circulation pipeline unit; Step S302: Control the heating circulation pipeline unit to perform the hydrogen release temperature adjustment operation of the heat medium circulation flow process, so that the heating circulation pipeline unit delivers the mixed heat medium of the first heat medium and the second heat medium to the medium receiving cavity, and delivers the medium receiving cavity flowing out of the medium receiving cavity to the first heat medium tank 709, wherein the mixed heat medium flows into the medium receiving cavity and raises the temperature inside the hydrogen storage device 3 to the preset hydrogen release temperature.

[0053] Specifically, in step S301, the processor 8 controls the nineteenth switch valve 729 to open, so that the second heat medium in the second heat medium tank 721 can flow out through the second heat medium pipeline 728.

[0054] In step S302, the processor 8 controls the eleventh switching valve 710 and the twelfth switching valve 711 to open, and controls the first pumping component 707 to start pumping. The first hot medium in the first hot medium tank 709 flows out and then flows into a portion of the first circulation pipe 703 through a portion of the second circulation pipe 708, where it mixes with the second hot medium flowing out of the second hot medium pipe 728. The mixed hot medium formed by the two enters the fluid containment cavity through the first connecting port and is heated by the hydrogen storage device 3. After absorbing heat, the internal temperature of the hydrogen storage device 3 can rise to the preset hydrogen release temperature. The above setting reuses the heat generated by the cooling of the cold medium. By using the second hot medium in the second hot medium tank 721 and the first hot medium in the first hot medium tank 709 to jointly heat the hydrogen storage device 3, the heating efficiency of the hydrogen storage device 3 is improved, the heating time of the hydrogen storage device 3 is shortened, and the user experience of the hydrogen storage system is improved.

[0055] During the execution of step S302, the temperature detection element 702 of the hydrogen storage device detects the temperature inside the hydrogen storage device 3 in real time and sends the temperature to the processor 8. After receiving the real-time temperature, the processor 8 compares it with the preset hydrogen release temperature stored in the processor 8 (in this embodiment, the preset hydrogen release temperature can be pre-input into the processor 8 by the operator through the operation input element 9). If the temperature detected by the temperature detection element 702 in real time does not reach the preset hydrogen release temperature, step S302 continues to be executed; if the temperature detected by the temperature detection element 702 in real time reaches the preset hydrogen release temperature, step S302 stops.

[0056] In one embodiment of this application, the hydrogen storage device 3 is housed in a heat exchanger 701, and a medium receiving cavity is formed between the heat exchanger 701 and the hydrogen storage device 3. The control method further includes the following steps: Step S401: Determine that the hydrogen storage system has entered the hydrogen charging mode.

[0057] Specifically, the operator can activate the hydrogen charging function of the hydrogen storage system by pressing the hydrogen charging button on the operation input 9. After the hydrogen charging button is pressed, a corresponding signal is sent to the processor 8. After receiving the signal, the processor 8 can determine that the hydrogen storage system has entered the hydrogen charging mode.

[0058] Step S402: Control the external circulation pipeline unit to perform cold medium circulation operation, so that the external circulation pipeline unit transports the cold medium in the cold medium tank 704 to the medium receiving cavity, and transports the cold medium flowing out of the medium receiving cavity to the cold medium tank 704. The cold medium flowing into the medium receiving cavity can reduce the temperature inside the hydrogen storage device 3 to the preset hydrogen charging temperature.

[0059] Specifically, after entering the hydrogen charging mode, the processor 8 controls the ninth switch valve 705 and the tenth switch valve 706 to open, and controls the first pumping component 707 to start the pumping function. The cold medium in the cold medium tank 704 flows out and is transported through part of the first circulation pipeline 703 and enters the fluid receiving chamber through the first connecting port. The cold medium entering the fluid receiving chamber absorbs the heat emitted by the hydrogen storage device 3 (the heat of the hydrogen storage device 3 is absorbed by the cold medium and then cooled down) and flows out of the fluid receiving chamber through the second connecting port. The liquid flowing out of the fluid receiving chamber (the liquid at this time is formed after the cold medium absorbs heat) returns to the cold medium tank 704 under the pumping action of the first pumping component 707. The above process continues, and the cold medium circulates in the flow channel formed by the first circulation pipeline 703 and the fluid receiving chamber and cools the hydrogen storage device 3.

[0060] During step S402, the hydrogen storage device temperature detection unit 702 detects the internal temperature of the hydrogen storage device 3 in real time and sends the temperature to the processor 8. After receiving the real-time temperature, the processor 8 compares it with the preset hydrogen charging temperature stored in the processor 8 (in this embodiment, the preset hydrogen charging temperature can be pre-input into the processor 8 by the operator through the operation input unit 9). If the temperature detected by the hydrogen storage device temperature detection unit 702 in real time does not reach the preset hydrogen charging temperature, the cooling external circulation pipeline unit continues to perform cooling operation on the hydrogen storage device 3; if the temperature detected by the hydrogen storage device temperature detection unit 702 in real time reaches the preset hydrogen charging temperature, step S402 is stopped.

[0061] In one embodiment of this application, the hydrogen storage system further includes a hydrogen delivery pipeline module and a venting pipeline unit 5 and a vacuuming pipeline unit 6 connected to the hydrogen delivery pipeline module. The control method further includes the following steps: Step S501: After determining that the hydrogen storage system has entered the hydrogen charging mode, control the release pipeline unit 5 and the hydrogen transmission pipeline module to cooperate in performing the first pressure relief operation to relieve pressure on the hydrogen transmission pipeline module.

[0062] Specifically, such as Figure 2As shown, the hydrogen transmission pipeline module includes a first pipeline unit 2 and a second pipeline unit 4. The first pipeline unit 2 has a first flow detection element 201 on its first pipeline 202 for detecting the flow rate of hydrogen in the first pipeline unit 2. The second pipeline unit 4 has a volume chamber 401 on its second pipeline 402. The cross-sectional areas of both the first pipeline 202 and the second pipeline 402 are smaller than the minimum flow cross-sectional area of ​​the volume chamber 401. The two ends of the first pipeline unit 2 are connected to a hydrogen source 1 and a hydrogen storage device 3, respectively, and are used to transmit hydrogen between the hydrogen source 1 and the hydrogen storage device 3. The two ends of the second pipeline unit 4 are also connected to a hydrogen source 1 and a hydrogen storage device 3, respectively, and are used to transmit hydrogen between the hydrogen source 1 and the hydrogen storage device 3. The volume chamber 401 contains a volume chamber flow detection module for detecting the flow rate of hydrogen within the volume chamber 401. Furthermore, the two ends of the first pipeline 202 are respectively connected to the hydrogen source 1 and the hydrogen storage device 3. The first pipeline unit 2 also includes a third switching valve 203 and a fourth switching valve 204. The third switching valve 203 is disposed on the first pipeline 202 and located on the side of the first flow detection element 201 near the hydrogen source 1. The third switching valve 203 is used to open or close the pipeline section of the first pipeline 202 located between the first flow detection element 201 and the hydrogen source 1. The fourth switching valve 204 is disposed on the first pipeline 202 and located on the side of the first flow detection element 201 near the hydrogen storage device 3. The fourth switching valve 204 is used to open or close the pipeline section of the first pipeline 202 located between the first flow detection element 201 and the hydrogen storage device 3. In this embodiment, both the third switching valve 203 and the fourth switching valve 204 can be selected as solenoid valves. Both are communicatively connected to the processor 8; the two ends of the second pipeline 402 are respectively connected to the hydrogen source 1 and the hydrogen storage device 3. The second pipeline unit 4 also includes a first switching valve 403 and a second switching valve 404. The first switching valve 403 is disposed on the second pipeline 402 and located on the side of the volume chamber 401 near the hydrogen source 1. The first switching valve 403 is used to open or close the pipeline section of the second pipeline 402 located between the volume chamber 401 and the hydrogen source 1. The second switching valve 404 is disposed on the second pipeline 402 and located on the side of the volume chamber 401 near the hydrogen storage device 3. The second switching valve 404 is used to open or close the pipeline section of the second pipeline 402 located between the volume chamber 401 and the hydrogen storage device 3. In this embodiment, both the first switching valve 403 and the second switching valve 404 can be selected as solenoid valves and are communicatively connected to the processor 8.Furthermore, in this embodiment, the first end of the second pipeline 402 is connected to the first pipeline 202, and the connection point between the first end of the second pipeline 402 and the first pipeline 202 is located between the third switch valve 203 and the hydrogen source 1. The second end of the second pipeline 402 is connected to the first pipeline 202, and the connection point between the second end of the second pipeline 402 and the first pipeline 202 is located between the fourth switch valve 204 and the hydrogen storage device 3. The first pipeline unit 2 also includes an eighth switch valve 207, which is disposed on the first pipeline 202 and located between the fourth switch valve 204 and the hydrogen storage device 3. The eighth switch valve 207 can be selected as a solenoid valve and is communicatively connected to the processor 8.

[0063] The discharge pipeline unit 5 includes a first discharge pipeline assembly 501 and a second discharge pipeline assembly 502. The first discharge pipeline assembly 501 includes a first discharge pipeline 5011 and a fifth switching valve 5012. The first discharge pipeline 5011 is connected to the first pipeline 202. The connection point between the first discharge pipeline 5011 and the first pipeline 202 is located between the connection point between the second pipeline unit 4 and the first pipeline 202 and the eighth switching valve 207. The fifth switching valve 5012 is disposed on the first discharge pipeline 5011 and is used to open or close the first discharge pipeline 5011. (This embodiment) The fifth switching valve 5012 can be a solenoid valve and is communicatively connected to the processor 8; the second discharge pipeline assembly 502 includes a second discharge pipeline 5021 and a sixth switching valve 5022. The second discharge pipeline 5021 is connected to the second pipeline 402. The connection point between the second discharge pipeline 5021 and the second pipeline 402 is located between the volume chamber 401 and the first switching valve 403. The sixth switching valve 5022 is disposed on the second discharge pipeline 5021 and is used to open or close the second discharge pipeline 5021. The sixth switching valve 5022 can be a solenoid valve and is communicatively connected to the processor 8.

[0064] In step S501, the end of the first venting pipeline assembly 501 away from the first pipeline 202 is connected to the outside, and the processor 8 controls the fifth switch valve 5012 to open. The end of the second venting pipeline assembly 502 away from the second pipeline unit 4 is connected to the outside, and the processor 8 controls the sixth switch valve 5022 to open. In addition, the processor 8 controls the third switch valve 203 and the first switch valve 403 to close, and controls the second switch valve 404, the fourth switch valve 204 and the eighth switch valve 207 to open, so that the section of the pipeline between the third switch valve 203 and the hydrogen source 1 on the first pipeline 202 is set to a cut-off state, the section of the pipeline between the third switch valve 203 and the hydrogen storage device 3 on the first pipeline 202 is set to a conductive state, the section of the pipeline between the first switch valve 403 and the hydrogen source 1 on the second pipeline 402 is set to a cut-off state, and the section of the pipeline between the first switch valve 403 and the hydrogen storage device 3 on the second pipeline 402 is set to a conductive state, thereby venting the pressure inside the first pipeline unit 2 and the second pipeline unit 4.

[0065] Step S502: Control the vacuum pumping pipeline unit 6 and the hydrogen delivery pipeline module to cooperate in performing the first vacuum pumping operation to discharge the residual hydrogen inside the hydrogen delivery pipeline module.

[0066] Specifically, the vacuum pipeline unit 6 includes a suction pipeline 601, a seventh switching valve 602, and a suction component 603. The suction pipeline 601 is connected to the first pipeline 202, and the connection point between the suction pipeline 601 and the first pipeline 202 is located between the hydrogen storage device 3 and the fourth switching valve 204. The seventh switching valve 602 is installed on the suction pipeline 601 and is used to open or close the suction pipeline 601. The suction component 603 is installed on the suction pipeline 601 and is used to extract residual hydrogen from the first pipeline 202 and the second pipeline 402.

[0067] Furthermore, in this embodiment, the end of the suction pipe 601 away from the first pipe 202 is connected to the outside or the waste gas collection tank. The seventh switch valve 602 can be a solenoid valve and is communicatively connected to the processor 8. The suction component 603 can be a vacuum pump and is communicatively connected to the processor 8. In step S602, the processor 8 first controls the first switch valve 403, the third switch valve 203, the fifth switch valve 5012, and the sixth switch valve 5022 to close, and controls the second switch valve 404, the fourth switch valve 204, the seventh switch valve 602, and the eighth switch valve 207 to open. This connects part of the first pipe 202 and part of the second pipe 402 to the outside (or the waste gas collection tank). Then, the processor 8 controls the suction component 603 to activate the vacuum function to extract the residual hydrogen inside the first pipe unit 2 and the second pipe unit 4. This prevents the residual hydrogen inside the first pipe unit 2 and the second pipe unit 4 from mixing with air and causing a hazard when hydrogen is subsequently added to the hydrogen storage device 3.

[0068] Step S503: After the first vacuuming operation is completed, control the external cooling circulation piping unit to perform a refrigerant circulation operation; and, Step S504: After the hydrogen storage system ends the hydrogen charging mode, the control system release pipeline unit 5, vacuum pipeline unit 6 and hydrogen delivery pipeline module cooperate to perform the second pressure relief operation to relieve pressure inside the hydrogen delivery pipeline module.

[0069] Specifically, in step S504, the processor 8 controls the first switching valve 403, the third switching valve 203, and the eighth switching valve 207 to close, and controls the second switching valve 404, the fourth switching valve 204, the fifth switching valve 5012, the sixth switching valve 5022, and the seventh switching valve 602 to open, thereby realizing the second venting operation to depressurize the first pipeline unit 2 and the second pipeline unit 4 again. The above settings are conducive to further improving the safety of the hydrogen storage system.

[0070] In one embodiment of this application, the control method further includes: Step S601: After the cold medium circulation operation is completed, control the hydrogen source 1, the first pipeline unit 2 and the second pipeline unit 4 to cooperate in performing a staged hydrogen charging operation, so that when the flow rate of hydrogen flowing into the hydrogen storage device 3 is greater than the maximum range of the first flow detection element 201, hydrogen is delivered through the second pipeline unit 4, and when the flow rate of hydrogen flowing into the hydrogen storage device 3 is less than or equal to the maximum range of the first flow detection element 201, hydrogen is delivered through the first pipeline unit 2.

[0071] In one embodiment of this application, step S601, which controls the hydrogen source 1, the first pipeline unit 2, and the second pipeline unit 4 to cooperate in performing a staged hydrogen charging operation, further includes the following steps: Step S701: Control the first pipeline unit 2 to shut down.

[0072] Specifically, the two ends of the first pipeline 202 are connected to the hydrogen source 1 and the hydrogen storage device 3, respectively. The first pipeline unit 2 also includes a third switching valve 203 and a fourth switching valve 204. The third switching valve 203 is disposed on the first pipeline 202 and located on the side of the first flow detection element 201 near the hydrogen source 1. The third switching valve 203 is used to open or close the pipeline section of the first pipeline 202 located between the first flow detection element 201 and the hydrogen source 1. The fourth switching valve 204 is disposed on the first pipeline 202 and located on the side of the first flow detection element 201 near the hydrogen storage device 3. The fourth switching valve 204 is used to open or close the pipeline section of the first pipeline 202 located between the first flow detection element 201 and the hydrogen storage device 3.

[0073] Furthermore, in this embodiment, the third switching valve 203 and the fourth switching valve 204 can both be selected as solenoid valves and are both connected to the processor 8. In step S701, when the processor 8 controls the third switching valve 203 and the fourth switching valve 204 to be in the closed state, the first pipeline 202 is cut off, and the hydrogen provided by the hydrogen source 1 cannot be delivered to the hydrogen storage device 3 through the first pipeline 202.

[0074] Step S702: Control the second pipeline unit 4 to transport the hydrogen provided by the hydrogen source 1 to the hydrogen storage device 3.

[0075] Specifically, the two ends of the second pipeline 402 are connected to the hydrogen source 1 and the hydrogen storage device 3, respectively. The second pipeline unit 4 also includes a first switching valve 403 and a second switching valve 404. The first switching valve 403 is disposed on the second pipeline 402 and located on the side of the volume chamber 401 near the hydrogen source 1. The first switching valve 403 is used to open or close the pipeline section of the second pipeline 402 located between the volume chamber 401 and the hydrogen source 1. The second switching valve 404 is disposed on the second pipeline 402 and located on the side of the volume chamber 401 near the hydrogen storage device 3. The second switching valve 404 is used to open or close the pipeline section of the second pipeline 402 located between the volume chamber 401 and the hydrogen storage device 3.

[0076] In this embodiment, both the first switching valve 403 and the second switching valve 404 can be selected as solenoid valves and are communicatively connected to the processor 8. When the processor 8 controls both the first switching valve 403 and the second switching valve 404 to be in the closed state, the second pipeline 402 is cut off, and the hydrogen provided by the hydrogen source 1 cannot be delivered to the hydrogen storage device 3 through the second pipeline 402. In step S702, the processor 8 controls the hydrogen source 1 to release hydrogen gas, and at the same time controls the first switching valve 403 and the second switching valve 404 to open, the second pipeline 402 is opened, and the hydrogen provided by the hydrogen source 1 is delivered to the hydrogen storage device 3 through the second pipeline 402.

[0077] In this embodiment, step S702, controlling the second pipeline unit 4 to transport the hydrogen provided by the hydrogen source 1 to the hydrogen storage device 3, further includes the following steps: Step S801: Control the pipeline section between the upper volume chamber 401 of the second pipeline unit 4 and the hydrogen storage device 3 to be in a cut-off state, and control the pipeline section between the upper volume chamber 401 of the second pipeline unit 4 and the hydrogen source 1 to be in a conductive state. Step S802: Control the hydrogen source 1 to supply hydrogen to the volume chamber 401 until the first pressure of the hydrogen in the volume chamber 401 reaches the preset hydrogen filling pressure; Step S803: Control the pipeline section between the upper volume chamber 401 of the second pipeline unit 4 and the hydrogen source 1 to be in a cut-off state; Step S804: Control the pipeline section between the volume chamber 401 on the second pipeline unit 4 and the hydrogen storage device 3 to be in a conductive state so that the hydrogen in the volume chamber 401 flows into the hydrogen storage device 3.

[0078] Specifically, in this embodiment, when the operator puts the hydrogen storage system into the hydrogen charging mode through the operation input device 9, a preset hydrogen charging pressure is also preset through the operation input device 9, and the operation input device 9 sends the preset hydrogen charging pressure to the processor 8. The volume chamber 401 is also equipped with a volume chamber pressure detection device 405 for detecting the pressure of hydrogen inside the volume chamber 401. The volume chamber pressure detection device 405 is communicatively connected to the processor 8. After step S601 is executed, the processor 8 first controls the second switch valve 404 to close and the first switch valve 403 to open, so that hydrogen enters the volume chamber 401 and accumulates in the volume chamber 401. The processor 8 controls the volume chamber pressure detection device 405 to detect the first pressure of hydrogen in the volume chamber 401 in real time and sends the first pressure to the processor 8. The processor 8 compares the first pressure with the preset hydrogen filling pressure. When the first pressure does not reach the preset hydrogen filling pressure, the second switch valve 404 continues to close and the first switch valve 403 continues to open, so that hydrogen continues to enter the volume chamber 401. When the first pressure reaches the preset hydrogen filling pressure, the processor 8 controls the second switch valve 404 to open and the first switch valve 403 to close, so that the hydrogen in the volume chamber 401 flows into the hydrogen storage device 3. The above configuration ensures that the volume chamber 401 is filled with hydrogen before being supplied to the hydrogen storage device 3, thus preventing the inflow and outflow ends of the volume chamber 401 from opening simultaneously. This avoids the hydrogen flowing out of the volume chamber 401 at an excessively high rate, which would result in a small amount of hydrogen in the volume chamber 401 and affect the accuracy of the detection results of the volume chamber flow detection module.

[0079] Step S703: During the process of hydrogen flowing into the hydrogen storage device 3, obtain the real-time hydrogen charging flow rate of the hydrogen storage device 3; Step S704: When the real-time hydrogen charging flow rate is less than or equal to the maximum range of the first flow detection element 201, control the second pipeline unit 4 to shut off and control the first pipeline unit 2 to transport the hydrogen provided by the hydrogen source 1 to the hydrogen storage device 3.

[0080] Specifically, during the process of hydrogen flowing into the hydrogen storage device 3 through the second pipeline 402, the volumetric flow detection module detects the hydrogen flow rate in the volumetric chamber 401 in real time. In this embodiment, when hydrogen is supplied to the hydrogen storage device 3 through the second pipeline 402, the hydrogen flow rate detected by the volumetric flow detection module in real time is consistent with the real-time hydrogen charging flow rate of the hydrogen storage device 3. After detection, the volumetric flow detection module sends the detected hydrogen flow rate to the processor 8. The processor 8 then compares the above-mentioned hydrogen flow rate with the maximum range of the pre-stored first flow detection element 201 (in this embodiment, the first flow detection element 201...). The maximum range can be pre-input into the processor 8 by the operator through the operation input device 9. If the hydrogen flow rate is greater than the maximum range of the first flow detection device 201 (i.e., the real-time hydrogen charging flow rate is greater than the maximum range of the first flow detection device 201), the second switch valve 404 continues to open; if the hydrogen flow rate is less than or equal to the maximum range of the first flow detection device 201, the second switch valve 404 is closed, and the third switch valve 203 and the fourth switch valve 204 are opened, the first pipeline 202 is connected, and the hydrogen provided by the hydrogen source 1 can be transported to the hydrogen storage device 3 through the first pipeline 202.

[0081] The above setup enables accurate measurement of hydrogen delivered to the hydrogen storage device 3 under different flow rates. Specifically, when the flow rate of hydrogen to the hydrogen storage device 3 exceeds the maximum range of the first flow detection element 201, hydrogen is delivered through the second pipeline unit 4. The volumetric flow detection module accurately measures the flow rate of hydrogen passing through the volumetric chamber 401. Since the cross-sectional areas of both the first pipeline 202 and the second pipeline 402 are smaller than the minimum flow cross-sectional area of ​​the volumetric chamber 401, the gas flow capacity of the volumetric chamber 401 is greater than that of the first pipeline 202. Based on pipelines 202 and 402, when the flow rate of hydrogen to the hydrogen storage device 3 is less than or equal to the maximum range of the first flow detection element 201, hydrogen is transported through the first pipeline unit 2. The first flow detection element 201 is used to accurately measure the flow rate of hydrogen passing through the first pipeline unit 2, so as to realize the accurate measurement of hydrogen flow rate at any time during the hydrogen charging process of the hydrogen storage device 3, ensuring the accuracy of hydrogen measurement when charging the hydrogen storage device 3, and avoiding the situation of large hydrogen quantity error when charging hydrogen into the hydrogen storage device 3.

[0082] In one embodiment of this application, the first pipeline unit 2 further includes: Pressure regulating component 205 is disposed on the first pipeline 202 and located between the third switching valve 203 and the hydrogen source 1, and is used to regulate the pressure of hydrogen entering the first pipeline 202; The first pressure detection element 206 is installed on the first pipeline 202 and located between the pressure regulator 205 and the third switching valve 203, and is used to detect the pressure of hydrogen flowing out from the outlet end of the pressure regulator 205. The second pressure detection element 208 is installed on the first pipeline 202 and located between the pressure regulator 205 and the third switch valve 203, and is used to detect the pressure of hydrogen flowing into the hydrogen storage device 3.

[0083] Specifically, in this embodiment, the pressure regulating component 205 can be selected as a pressure regulating valve, the eighth switching valve 207 can be selected as a solenoid valve, and the first pressure detection component 206 and the second pressure detection component 208 can both be selected as pressure sensors. The first pressure detection component 206, the eighth switching valve 207, and the second pressure detection component 208 are all communicatively connected to the processor 8. When hydrogen is charged into the hydrogen storage device 3 through the first pipeline 202, the processor 8 controls the third switching valve 203, the fourth switching valve 204, and the eighth switching valve 207 to open. When hydrogen is charged into the hydrogen storage device 3 through the second pipeline 402, in addition to controlling the first switching valve 403 and the second switching valve 404 to open, the processor 8 also controls the eighth switching valve 207 to open. Furthermore, in step S702, the processor 8 also controls the pressure regulator 205 to adjust the pressure based on the preset hydrogen charging pressure until the pressure of the hydrogen flowing out of the outlet of the pressure regulator 205 is equal to the preset hydrogen charging pressure. This controls the first pressure detector 206 to detect the adjustment result of the pressure regulator 205, which helps improve the accuracy of the adjustment result of the pressure regulator 205 and the hydrogen flow rate measurement. The second pressure detector 208 detects the pressure of the hydrogen about to enter the hydrogen storage device 3, further ensuring that the pressure of the hydrogen entering the hydrogen storage device 3 is equal to the preset hydrogen charging pressure. Only when the pressure detected by the first pressure detector 206 and the pressure detected by the volume chamber pressure detector 405 (i.e., the first pressure) are both consistent with the preset hydrogen charging pressure, does the second switch valve 404 open and the first switch valve 403 close. This setting helps to further improve the accuracy of the hydrogen flow rate measurement in the hydrogen storage device 3.

[0084] In one embodiment of this application, during the process of hydrogen flowing from the volume chamber 401 into the hydrogen storage device 3, the real-time hydrogen charging flow rate of the hydrogen storage device 3 is obtained according to the following method: Step S901: Obtain the real-time hydrogen charging pressure, volume of the volume chamber 401, and real-time hydrogen charging temperature of the volume chamber 401. Step S902: Calculate the real-time hydrogen charging flow rate based on the real-time hydrogen charging pressure, volume, and real-time hydrogen charging temperature.

[0085] Specifically, in this embodiment, the volume chamber flow detection module includes a volume chamber pressure detection element 405 and a volume chamber temperature detection element 406. The volume chamber pressure detection element 405 is disposed on the volume chamber 401 and is used to detect the pressure of hydrogen inside the volume chamber 401; the volume chamber temperature detection element 406 is disposed on the volume chamber 401 and is used to detect the temperature of hydrogen inside the volume chamber 401. The volume chamber pressure detection element 405 can be selected as a pressure sensor, and the volume chamber temperature detection element 406 can be selected as a temperature sensor. Both the volume chamber pressure detection element 405 and the volume chamber temperature detection element 406 are communicatively connected to the processor 8. When hydrogen is transported through the second pipeline 402, the volume chamber pressure detection element 405 sends its detection result to the processor 8 after detecting the pressure of hydrogen inside the volume chamber 401, and the volume chamber temperature detection element 406 sends its detection result to the processor 8 after detecting the temperature of hydrogen inside the volume chamber 401. The processor 8 can determine the flow rate of hydrogen inside the volume chamber 401 based on the pressure detected by the volume chamber pressure sensor 405 and the temperature detected by the volume chamber temperature sensor 406. That is, the processor 8 can calculate the flow rate of hydrogen inside the volume chamber 401 according to the following formula: (1) in, 1 represents the flow rate of hydrogen inside the volume chamber 401 (in this embodiment, the flow rate of hydrogen inside the volume chamber 401 refers to the volumetric flow rate of hydrogen inside the volume chamber 401), in L / min; This represents the molar volume of hydrogen gas, expressed in L / mol. The pressure of hydrogen gas inside volume chamber 401 is expressed in Pa. The volume of volume chamber 401 is expressed in liters (L). This is the universal gas constant, with units of J / (mol·K); The temperature of the hydrogen gas inside volume chamber 401 is expressed in Kelvin (K).

[0086] The above-mentioned method for measuring the flow rate of hydrogen inside the volume chamber 401, when used in conjunction with the volume chamber 401, can achieve any flow rate of hydrogen, which is beneficial to further expand the applicability of the volume chamber flow detection module and the hydrogen flow monitoring device.

[0087] In another embodiment of this application, during the process of hydrogen flowing from the volume chamber 401 into the hydrogen storage device 3, the real-time hydrogen charging flow rate of the hydrogen storage device 3 is obtained according to the following method: Step S110: Obtain the mass of hydrogen gas inside volume chamber 401; Step S111: Calculate the real-time hydrogen charging flow rate based on the mass of hydrogen inside the volume chamber 401.

[0088] Specifically, in this embodiment, the volumetric flow detection module includes a mass detection element. This mass detection element is located at the bottom of the volumetric chamber 401 and is used to measure the mass of hydrogen inside the volumetric chamber 401. The mass detection element can be a mass sensor and is communicatively connected to the processor 8. When hydrogen is supplied to the hydrogen storage device 3 through the second pipeline 402, after the mass detection element detects the mass of hydrogen inside the volumetric chamber 401, it sends the detection result to the processor 8. The processor 8 can determine the mass of hydrogen inside the volumetric chamber 401 based on the temperature detected by the mass detection element. That is, the processor 8 can calculate the flow rate of hydrogen inside the volumetric chamber 401 according to the following formula: (2) in, The unit is kg / s; The mass of hydrogen gas inside volume chamber 401 is expressed in kg.

[0090] (3) in, The flow rate of hydrogen inside volumetric chamber 401 (in this embodiment, the flow rate of hydrogen inside volumetric chamber 401 refers to the volumetric flow rate of hydrogen inside volumetric chamber 401), in m³ / s. 3 / s; This refers to the density of hydrogen gas, expressed in kg / m³. 3 .

[0092] The above-mentioned method for measuring the flow rate of hydrogen inside the volume chamber 401, when used in conjunction with the volume chamber 401, can avoid indirect errors, which is beneficial to further improve the measurement accuracy of the flow rate of hydrogen inside the volume chamber 401, and has the advantage of high reliability for long-term use.

[0093] Step S602: After confirming that the hydrogen storage device 3 is full, control the hydrogen source 1 and the first pipeline unit 2 to cooperate in stopping the staged hydrogen filling operation.

[0094] Specifically, when hydrogen is supplied to the hydrogen storage device 3 through the first pipeline 202, the first flow detection element 201 detects the flow rate of hydrogen in the first pipeline 202 in real time and sends the detection value to the processor 8. In this embodiment, after the hydrogen storage device 3 is filled, hydrogen cannot enter the interior of the hydrogen storage device 3. At this time, the hydrogen in the first pipeline 202 no longer flows, so the detection result of the first flow detection element 201 is 0. After receiving the detection result of 0 sent by the first flow detection element 201, the processor 8 can determine that the hydrogen storage device 3 is filled. Then, the processor 8 controls the third switching valve 203 and the fourth switching valve 204 to close, controlling the hydrogen source 1 to stop releasing hydrogen.

[0095] In one embodiment of this application, the control method further includes the following steps: Step S112: Obtain hydrogen charging parameter data generated by the hydrogen storage device 3 during the staged hydrogen charging operation. The hydrogen charging parameter data shall include at least the total mass of hydrogen charged into the hydrogen storage device 3. Step S113: Determine whether the hydrogen charging performance of the hydrogen storage device 3 meets the standard based on the hydrogen charging parameter data; Step S114: Determine the end of hydrogen charging mode.

[0096] Specifically, the hydrogen charging parameter data may also include the first hydrogen mass charged into the hydrogen storage device 3 within a first preset time period (e.g., 30 minutes), the percentage between the second hydrogen mass charged into the hydrogen storage device 3 within a second preset time period and the maximum hydrogen charging mass of the hydrogen storage device 3, and the third hydrogen mass charged into the hydrogen storage device 3 at a first preset pressure, etc. In this embodiment, the hydrogen charging parameter data is preferably the total hydrogen charging mass of the hydrogen storage device 3. During the execution of step S802, the processor 8 calculates the first hydrogen charging mass of the hydrogen storage device 3 (i.e., the mass of hydrogen charged into the hydrogen storage device 3 through the second pipeline 402) based on the following formula: (4) in, The first hydrogen charge mass is expressed in kg. This refers to the real-time hydrogen flow rate detected by the volumetric chamber flow detection module in hydrogen charging mode, expressed in m³ / s. 3 / s.

[0098] During the execution of step S601, the processor 8 calculates the second hydrogen charging mass of the hydrogen storage device 3 (i.e., the mass of hydrogen gas charged into the hydrogen storage device 3 through the first pipeline 202) based on the following formula: (5) in, The second hydrogen charge mass is expressed in kg. The flow rate of hydrogen detected by the first flow detection element 201, in m³ / s. 3 / s.

[0100] M1= + (6) Where M1 is the total mass of hydrogen charged, in kg.

[0101] After calculating M1, processor 8 compares it with a first preset total mass stored in processor 8 (in this embodiment, the first preset total mass can be pre-input to the processor by the operator through operation input device 9). If M1 is greater than or equal to the first preset total mass, it indicates that the hydrogen charging performance of the hydrogen storage device 3 meets the standard, and the hydrogen charging mode is determined to end.

[0102] In one embodiment of this application, the control method further includes: Step S115: After the hydrogen release temperature adjustment operation is completed, control the first pipeline unit 2, the second pipeline unit 4 and the discharge pipeline unit 5 to cooperate in performing a staged hydrogen release operation, so that the second pipeline unit 4 delivers hydrogen when the flow rate of hydrogen out of the hydrogen storage device 3 is greater than the maximum range of the second flow detection element 5013, and the first pipeline unit 2 delivers hydrogen when the flow rate of hydrogen out of the hydrogen storage device 3 is less than or equal to the maximum range of the second flow detection element 5013.

[0103] In one embodiment of this application, the discharge pipeline unit 5 includes a first discharge pipeline assembly 501 and a second discharge pipeline assembly 502 respectively connected to the first pipeline unit 2 and the second pipeline unit 4. Step S115, controlling the first pipeline unit 2, the second pipeline unit 4, and the discharge pipeline unit 5 to cooperate in performing a staged hydrogen release operation, includes the following steps: Step S1151: Control the first pipeline unit 2 and the first discharge pipeline assembly 501 to shut off.

[0104] Specifically, in step S1151, when the processor 8 controls the third switch valve 203, the fourth switch valve 204 and the fifth switch valve 5012 to be in the closed state, the first pipeline 202 and the first discharge pipeline 5011 are cut off, and the hydrogen gas released by the hydrogen storage device 3 cannot be discharged to the outside through the first discharge pipeline 5011 (such as being discharged to an external hydrogen-using component).

[0105] Step S1152: Control the second pipeline unit 4 and the second discharge pipeline assembly 502 to cooperate with each other to discharge the hydrogen gas released by the hydrogen storage device 3 to the outside.

[0106] Specifically, in step S1152, the processor 8 controls the first switch valve 403 to close, and controls the second switch valve 404 and the sixth switch valve 5022 to open (when the second end of the second pipeline 402 is connected to the first pipeline 202, the processor 8 controls the eighth switch valve 207 to open). The hydrogen released by the hydrogen storage device 3 passes through the second pipeline 402 and enters the second discharge pipeline 5021 to be discharged outward (such as to an external hydrogen-using component).

[0107] Step S1153: During the process of hydrogen flowing out of the hydrogen storage device 3 into the volume chamber 401, the real-time hydrogen release flow rate of the hydrogen storage device 3 is obtained.

[0108] Step S1154: When the real-time hydrogen release flow rate is less than or equal to the maximum range of the second flow detection element 5013, control the second pipeline unit 4 and the second discharge pipeline assembly 502 to shut off and control the first pipeline unit 2 and the first discharge pipeline assembly 501 to cooperate in discharging the hydrogen released from the hydrogen storage device 3 to the outside until the hydrogen storage device 3 is emptied.

[0109] Specifically, during the process of hydrogen gas released from the hydrogen storage device 3 being discharged outward through the second pipeline 402 and the second discharge pipeline 5021, the volume chamber flow detection module detects the hydrogen flow rate in the volume chamber 401 in real time. In this embodiment, when the released hydrogen gas is discharged outward through the second pipeline 402 and the second discharge pipeline 5021, the volume chamber flow detection module sends the detected hydrogen flow rate to the processor 8 after detection. The processor 8 then performs a process involving the hydrogen flow rate and the maximum range of the pre-stored second flow detection element 5013 (in this embodiment, the maximum range of the second flow detection element 5013 can be pre-input into the processor 8 by the operator through the operation input element 9). In contrast, if the hydrogen flow rate is greater than the maximum range of the second flow detection element 5013 (i.e., the real-time hydrogen release flow rate is greater than the maximum range of the second flow detection element 5013), then the second switch valve 404 and the sixth switch valve 5022 are opened; if the hydrogen flow rate is less than or equal to the maximum range of the second flow detection element 5013, then the second switch valve 404 and the sixth switch valve 5022 are closed, and the fifth switch valve 5012 is opened, the first discharge pipeline 5011 is connected, and the hydrogen released by the hydrogen storage device 3 enters the first discharge pipeline 5011 after passing through part of the first pipeline 202, and then is discharged outward from the end of the first discharge pipeline 5011 away from the first pipeline 202.

[0110] Furthermore, when hydrogen is discharged through the first venting pipe 5011, the second flow detection element 5013 detects the flow rate of hydrogen in the first venting pipe 5011 in real time and sends the detection value to the processor 8. In this embodiment, after the hydrogen inside the hydrogen storage device 3 is vented, there is no more hydrogen flowing in the first venting pipe 5011, so the detection result of the second flow detection element 5013 is 0. After receiving the detection result of 0 sent by the second flow detection element 5013, the processor 8 can determine that the hydrogen storage device 3 has been vented.

[0111] In one embodiment of this application, during the process of hydrogen gas released from the hydrogen storage device 3 being discharged outward through the second pipeline unit 4 and the second discharge pipeline assembly 502, the real-time hydrogen discharge flow rate of the hydrogen storage device 3 is obtained according to the following method: Step S1155: Obtain the real-time hydrogen release pressure, volume of volume chamber 401, and real-time hydrogen release temperature of volume chamber 401. Step S1156: Calculate the real-time hydrogen release flow rate based on the real-time hydrogen release pressure, volume, and real-time hydrogen release temperature.

[0112] Specifically, in the hydrogen release mode and when the volume chamber flow detection module includes a volume chamber pressure detection element 405 and a volume chamber temperature detection element 406, the processor 8 can calculate the flow rate of hydrogen inside the volume chamber 401 in the hydrogen release mode based on the detection results of the volume chamber pressure detection element 405 and the volume chamber temperature detection element 406 and formula (1). In this embodiment, the hydrogen flow rate detected in real time by the volume chamber flow detection module is consistent with the real-time hydrogen release flow rate of the hydrogen storage device 3.

[0113] In another embodiment of this application, when the hydrogen release mode is in effect and the volume chamber flow detection module includes a mass detection element, the processor 8 can calculate the flow rate of hydrogen inside the volume chamber 401 in the hydrogen release mode based on the detection result of the mass detection element and formulas (2) and (3).

[0114] In one embodiment of this application, the control method further includes the following steps: Step S116: Obtain hydrogen release parameter data generated by hydrogen storage device 3 during the staged hydrogen release operation. The hydrogen release parameter data shall include at least the total mass of hydrogen gas flowing out. Step S117: Determine whether the hydrogen release performance of the hydrogen storage device 3 meets the standard based on the hydrogen release parameter data; Step S118: Determine the end of the hydrogen release mode.

[0115] Specifically, the hydrogen release parameter data may also include the fifth hydrogen mass released by the hydrogen storage device 3 within a third preset time period (e.g., 30 minutes), the percentage between the fifth hydrogen mass released by the hydrogen storage device 3 within a fourth preset time period and the maximum hydrogen release mass of the hydrogen storage device 3, and the sixth hydrogen mass placed into the hydrogen storage device 3 at a preset pressure, etc. In this embodiment, the hydrogen release parameter data is preferably the total hydrogen release mass of the hydrogen storage device 3. During the execution of step S1153, the processor 8 calculates the first hydrogen release mass of the hydrogen storage device 3 (i.e., the mass of hydrogen discharged to the outside through the second venting pipe 5021) based on the following formula: (7) in, The mass of the first hydrogen release is expressed in kg. This refers to the real-time hydrogen flow rate detected by the volumetric chamber flow detection module in hydrogen release mode, expressed in m³ / s. 3 / s.

[0117] During step S1154, the processor 8 calculates the second hydrogen release mass of the hydrogen storage device 3 (i.e., the mass of hydrogen discharged through the first discharge pipe 5011) based on the following formula: (8) in, The second hydrogen release mass is expressed in kg. The flow rate of hydrogen detected by the second flow sensor 5013, in meters per second (m³). 3 / s.

[0119] M2= + (9) Where M2 is the total mass of hydrogen released, in kg.

[0120] After calculating M2, processor 8 compares it with a second preset total mass stored in processor 8 (in this embodiment, the second preset total mass can be pre-input to the processor by the operator via operation input device 9). If M2 is greater than or equal to the second preset total mass, it indicates that the hydrogen release performance of the hydrogen storage device 3 meets the standard, and the hydrogen release mode is determined to end.

[0121] In one embodiment of this application, the hydrogen storage system further includes an venting module and a hydrogen transmission pipeline module, and the control method further includes the following steps: Step S119: After determining that the hydrogen storage system has entered the hydrogen release mode, control the release pipeline unit 5 and the hydrogen transmission pipeline module to cooperate in performing the third pressure relief operation to relieve pressure on the hydrogen transmission pipeline module.

[0122] Specifically, in step S119, the end of the first venting pipe 5011 away from the first pipe 202 is connected to the outside, and the end of the second venting pipe 5021 away from the second pipe 402 is connected to the outside. The processor 8 controls the second switch valve 404, the fourth switch valve 204, the fifth switch valve 5012, and the sixth switch valve 5022 to open, and controls the third switch valve 203 and the first switch valve 403 to close, so that the pipe section between the third switch valve 203 and the hydrogen source 1 on the first pipe 202 is set to a cut-off state, the pipe section between the third switch valve 203 and the hydrogen storage device 3 on the first pipe 202 is set to a conductive state, the pipe section between the first switch valve 403 and the hydrogen source 1 on the second pipe 402 is set to a cut-off state, and the pipe section between the first switch valve 403 and the hydrogen storage device 3 on the second pipe 402 is set to a conductive state, thereby venting the pressure inside the first pipe unit 2 and the second pipe unit 4.

[0123] Step S120: Control the vacuum pumping pipeline unit 6 and the hydrogen delivery pipeline module to cooperate in performing the second vacuum pumping operation to discharge the residual hydrogen inside the hydrogen delivery pipeline module.

[0124] Specifically, in step S120, the processor 8 first controls the first switch valve 403, the third switch valve 203, the fifth switch valve 5012, and the sixth switch valve 5022 to close, and controls the second switch valve 404, the fourth switch valve 204, the seventh switch valve 602, and the eighth switch valve 207 to open, so that part of the first pipeline 202 and part of the second pipeline 402 can be connected to the outside (or the waste gas collection tank). Then, the processor 8 controls the suction component 603 to start the vacuum function to extract the residual hydrogen inside the first pipeline unit 2 and the second pipeline unit 4, so as to prevent the residual hydrogen inside the first pipeline unit 2 and the second pipeline unit 4 from mixing with air and causing danger when hydrogen is subsequently charged into the hydrogen storage device 3.

[0125] Step S121: After the second vacuuming operation is completed, the second heat medium outflow pipeline unit and the heating circulation pipeline unit are controlled to cooperate in performing the hydrogen release temperature adjustment operation; and, Step S123: After the hydrogen storage system ends the hydrogen release mode, the control system controls the release pipeline unit 5, the vacuum pipeline unit 6 and the hydrogen delivery pipeline module to cooperate in performing the fourth pressure relief operation to relieve pressure inside the hydrogen delivery pipeline module.

[0126] Specifically, in step S123, the processor 8 controls the first switching valve 403, the third switching valve 203 and the eighth switching valve 207 to close, and controls the second switching valve 404, the fourth switching valve 204, the fifth switching valve 5012, the sixth switching valve 5022 and the seventh switching valve 602 to open, thereby realizing the fourth release operation to release pressure on the first pipeline unit 2 and the second pipeline unit 4 again. The above settings are conducive to further improving the safety of the hydrogen storage system.

[0127] In this embodiment, the control signal sent by the processor 8 when controlling the first switching valve 403, the second switching valve 404, the third switching valve 203, the fourth switching valve 204, the fifth switching valve 5012, the sixth switching valve 5022, the seventh switching valve 602, the eighth switching valve 207, the suction component 603, and the pressure regulating component 205 is control signal 1; the processor 8 controls the ninth switching valve 705, the tenth switching valve 706, the eleventh switching valve 710, the twelfth switching valve 711, the thirteenth switching valve 716, the fourteenth switching valve 717, the fifteenth switching valve 722, the sixteenth switching valve 723, the seventeenth switching valve 726, and the... The control signal sent by the eighteen switching valves 727, the first pumping unit 707, the second pumping unit 720, the third pumping unit 725, the compressor 713, and the expansion valve 718 is control signal 2; the first flow detection unit 201, the first pressure detection unit 206, the second pressure detection unit 208, the volume chamber pressure detection unit 405, the volume chamber temperature detection unit 406, the second flow detection unit 5013, the hydrogen storage device temperature detection unit 702, the first temperature detection unit 730, the second temperature detection unit 731, and the third temperature detection unit 732 perform their respective detection functions and send their respective detection results to the processor 8 in the form of measurement signals.

[0128] Another embodiment of this application provides a processor 8 configured to perform the control method for a hydrogen storage system described in the above embodiments.

[0129] Another embodiment of this application provides a hydrogen storage system, which includes a cooling external circulation pipeline unit, a cooling internal circulation pipeline unit, an internal heating pipeline unit, a heat exchange circulation pipeline unit, a second heat medium outflow pipeline unit, a heating circulation pipeline unit, and the processor 8 in the above embodiment.

[0130] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0131] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0132] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0133] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A temperature regulation module for a hydrogen storage system, characterized in that, The temperature regulation module (7) includes: Heat exchanger (701) is used to transfer heat or cold to hydrogen storage device (3); A refrigeration external circulation piping unit is used to refrigerate the heat exchanger (701). A heating circulation pipeline unit is used to heat the heat exchanger (701). A heat exchange circulation pipeline unit, wherein the heat exchange circulation pipeline unit has heat absorption ends and heat dissipation ends spaced apart; The internal cooling circulation pipeline unit is connected to the cold medium tank (704) of the external cooling circulation pipeline unit and passes through the heat absorption end to cool the cold medium in the cold medium tank (704). An internal heating pipeline unit is connected to the first heat medium tank (709) of the heating circulation pipeline unit and passes through the heat dissipation end. The internal heating pipeline unit can use the heat dissipated by the heat dissipation end to convert the first heat medium in the first heat medium tank (709) into a second heat medium flowing into the second heat medium tank (721), wherein the temperature of the second heat medium is greater than the temperature of the first heat medium. The second heat medium outflow pipeline unit is used to transport the second heat medium in the second heat medium tank (721) to the heat exchanger (701).

2. The temperature regulation module for a hydrogen storage system according to claim 1, characterized in that, The refrigeration internal circulation piping unit includes: A refrigeration circulation pipeline (719) is provided, one end of which is connected to one end of the cold medium tank (704), and the other end of which passes through the heat dissipation end and is connected to the other end of the cold medium tank (704). The second pumping component (720) is disposed on the refrigeration circulation pipeline (719) and located between the cold medium tank (704) and the heat absorption end; The fifteenth switching valve (722) is disposed on the refrigeration circulation pipeline (719) and located between the cold medium tank (704) and the second pumping component (720); The sixteenth switching valve (723) is installed on the refrigeration circulation pipeline (719) and located between the cold medium tank (704) and the heat absorption end.

3. The temperature regulation module for a hydrogen storage system according to claim 1, characterized in that, The internal heating piping unit includes: An internal heating pipe (724) is provided, one end of which is connected to the first heat medium tank (709), and the other end of which passes through the heat dissipation end and is connected to the second heat medium tank (721). The third pumping component (725) is disposed on the internal heating pipeline (724) and located between the heat dissipation end and the first heat medium tank (709); The seventeenth switching valve (726) is disposed on the internal heating pipeline (724) and located between the first heat medium tank (709) and the third pumping component (725); The eighteenth switching valve (727) is disposed on the internal heating pipeline (724) and located between the second heat medium tank (721) and the heat dissipation end.

4. The temperature regulation module for a hydrogen storage system according to claim 1, characterized in that, The heat exchange circulation piping unit includes: Compressor (713); A heat exchange circulation pipeline (712) is provided. One end of the heat exchange circulation pipeline (712) is connected to the outlet end of the compressor (713). The other end of the heat exchange circulation pipeline (712) is connected to the inlet end of the compressor (713) after passing through the heat dissipation end and the heat absorption end in sequence. The heat exchange circulation pipeline (712) contains a heat exchange medium that flows under the driving action of the compressor (713). The heat absorption end is used to allow the heat of the cold medium in the refrigeration internal circulation pipeline unit to flow to the heat exchange medium. The heat dissipation end is used to allow the heat of the heat exchange medium to flow to the first heat medium in the internal heating pipeline (724). The thirteenth switching valve (716) is installed on the heat exchange circulation pipeline (712) and located between the compressor (713) and the heat absorption end; The fourteenth switching valve (717) is installed on the heat exchange circulation pipeline (712) and located between the compressor (713) and the heat dissipation end.

5. A control method for a hydrogen storage system, characterized in that, The control method employs the temperature regulation module (7) according to any one of claims 1-4 and includes: Determine that the hydrogen storage system has ended its hydrogen charging mode; The cooling external circulation pipeline unit is controlled to be in a shut-off state; The cooling internal circulation pipeline unit, the internal heating pipeline unit, and the heat exchange circulation pipeline unit are controlled to cooperate in performing heat exchange operations, so as to cool down the cold medium circulating in the cooling internal circulation pipeline unit and heat up the first hot medium flowing in the internal heating pipeline unit, wherein the first hot medium becomes the second hot medium after being heated. Once the heat exchange operation is confirmed to be complete, the internal heating piping unit is controlled to be in a shut-off state. The hydrogen storage system has been confirmed to have entered hydrogen release mode; The second heat medium outflow pipeline unit and the heating circulation pipeline unit cooperate to perform hydrogen release temperature regulation operation, so that the first heat medium delivered by the heating circulation pipeline unit and the second heat medium delivered by the second heat medium outflow pipeline unit work together to regulate the temperature inside the hydrogen storage device (3) to the preset hydrogen release temperature. The first heat medium flows out from the first heat medium tank (709) of the internal heating pipeline unit, and the second heat medium flows out from the second heat medium tank (721) of the internal heating pipeline unit.

6. The control method for a hydrogen storage system according to claim 5, characterized in that, The control of the refrigeration internal circulation pipeline unit, the internal heating pipeline unit, and the heat exchange circulation pipeline unit to cooperate in performing heat exchange operations includes: The refrigeration internal circulation pipeline unit is controlled to perform the cold medium circulation flow process of the heat exchange operation, so that the cold medium inside the refrigeration internal circulation pipeline unit is cooled down after passing through the heat absorption end of the heat exchange circulation pipeline unit. The heat exchange circulation pipeline unit is controlled to perform the heat exchange process of the heat exchange operation, so that the heat absorption end of the heat exchange circulation pipeline unit absorbs the heat of the cold medium and the heat dissipation end of the heat exchange circulation pipeline unit dissipates the heat outward. The internal heating pipeline unit is controlled to perform the first heat medium flow process of the heat exchange operation, so that the first heat medium flowing out from the first heat medium tank (709) absorbs heat and rises in temperature after passing through the heat dissipation end, and becomes the second heat medium flowing into the second heat medium tank (721).

7. The control method for a hydrogen storage system according to claim 5, characterized in that, The hydrogen storage device (3) is housed in the heat exchanger (701), and a medium receiving cavity is formed between the heat exchanger (701) and the hydrogen storage device (3). The control unit for the second hot medium outflow pipeline and the heating circulation pipeline unit cooperate to perform the hydrogen release temperature regulation operation, including: The second heat medium outflow pipeline unit is controlled to perform the second heat medium delivery process of the hydrogen release temperature regulation operation, so as to deliver the second heat medium to the heating circulation pipeline unit; The heating circulation pipeline unit is controlled to perform the hydrogen release temperature adjustment operation of the heat medium circulation flow process, so that the heating circulation pipeline unit delivers the mixed heat medium of the first heat medium and the second heat medium to the medium receiving cavity, and delivers the medium receiving cavity flowing out of the medium receiving cavity to the first heat medium tank (709), wherein the mixed heat medium flows into the medium receiving cavity and raises the temperature inside the hydrogen storage device (3) to the preset hydrogen release temperature.

8. The control method for a hydrogen storage system according to claim 5, characterized in that, The hydrogen storage device (3) is housed within the heat exchanger (701), and a medium-containing cavity is formed between the heat exchanger (701) and the hydrogen storage device (3). The control method further includes: The hydrogen storage system is confirmed to enter the hydrogen charging mode; The cooling external circulation pipeline unit is controlled to perform a cold medium circulation flow operation so that the cooling external circulation pipeline unit transports the cold medium in the cold medium tank (704) to the medium receiving cavity, and transports the cold medium flowing out of the medium receiving cavity to the cold medium tank (704). The cold medium, after flowing into the medium receiving cavity, reduces the temperature inside the hydrogen storage device (3) to a preset hydrogen charging temperature.

9. The control method for a hydrogen storage system according to claim 5, characterized in that, The hydrogen storage system further includes a hydrogen delivery pipeline module and a venting pipeline unit (5) and a vacuuming pipeline unit (6) connected to the hydrogen delivery pipeline module. The control method further includes: After determining that the hydrogen storage system has entered the hydrogen charging mode, the release pipeline unit (5) and the hydrogen transmission pipeline module are controlled to cooperate in performing the first pressure relief operation to relieve pressure on the hydrogen transmission pipeline module; The vacuum pumping pipeline unit (6) and the hydrogen delivery pipeline module cooperate to perform the first vacuum pumping operation to extract the residual hydrogen in the hydrogen delivery pipeline module. After the first vacuuming operation is completed, the cooling external circulation pipeline unit is controlled to perform the cooling medium circulation operation; and... After the hydrogen storage system ends the hydrogen charging mode, the control unit (5), the vacuuming unit (6) and the hydrogen delivery pipeline module cooperate to perform a second pressure relief operation to relieve pressure inside the hydrogen delivery pipeline module.

10. The control method for a hydrogen storage system according to claim 5, characterized in that, The hydrogen storage system further includes a hydrogen delivery pipeline module and a venting pipeline unit (5) and a vacuuming pipeline unit (6) connected to the hydrogen delivery pipeline module. The control method further includes: After determining that the hydrogen storage system has entered the hydrogen release mode, the release pipeline unit (5) and the hydrogen transmission pipeline module are controlled to cooperate in performing a third pressure relief operation to relieve pressure on the hydrogen transmission pipeline module. The vacuum pumping pipeline unit (6) and the hydrogen delivery pipeline module cooperate to perform a second vacuum pumping operation to extract the residual hydrogen in the hydrogen delivery pipeline module. After the second vacuuming operation is completed, the second heat medium outflow pipeline unit and the heating circulation pipeline unit are controlled to cooperate in performing the hydrogen release temperature adjustment operation; and... After the hydrogen storage system ends the hydrogen release mode, the control system controls the release pipeline unit (5), the vacuum pipeline unit (6) and the hydrogen delivery pipeline module to cooperate in performing the fourth pressure relief operation to relieve pressure inside the hydrogen delivery pipeline module.

11. A processor, characterized in that, The processor (8) is configured to perform the control method for a hydrogen storage system according to any one of claims 5-10.

12. A hydrogen storage system, characterized in that, The hydrogen storage system includes a temperature regulation module (7) and a processor (8) according to claim 11.

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