CN220792791U - Device for storing and pressurizing low-pressure hydrogen - Google Patents
Device for storing and pressurizing low-pressure hydrogen Download PDFInfo
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- CN220792791U CN220792791U CN202321396871.0U CN202321396871U CN220792791U CN 220792791 U CN220792791 U CN 220792791U CN 202321396871 U CN202321396871 U CN 202321396871U CN 220792791 U CN220792791 U CN 220792791U
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- 239000001257 hydrogen Substances 0.000 title claims abstract description 239
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 239
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 238
- 238000003860 storage Methods 0.000 claims abstract description 92
- 239000000872 buffer Substances 0.000 claims abstract description 44
- 239000007787 solid Substances 0.000 claims abstract description 35
- 239000007789 gas Substances 0.000 claims abstract description 13
- 230000006835 compression Effects 0.000 claims description 13
- 238000007906 compression Methods 0.000 claims description 13
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 8
- 229910052987 metal hydride Inorganic materials 0.000 claims description 8
- 150000004681 metal hydrides Chemical class 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 5
- 238000002407 reforming Methods 0.000 claims description 4
- 125000004122 cyclic group Chemical group 0.000 claims description 2
- 238000005259 measurement Methods 0.000 claims description 2
- 238000005057 refrigeration Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 10
- 150000002431 hydrogen Chemical class 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000010354 integration Effects 0.000 abstract description 2
- 239000000956 alloy Substances 0.000 description 13
- 239000007788 liquid Substances 0.000 description 10
- 239000011232 storage material Substances 0.000 description 10
- 238000010521 absorption reaction Methods 0.000 description 7
- 238000003795 desorption Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000005868 electrolysis reaction Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229910001094 6061 aluminium alloy Inorganic materials 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 230000002528 anti-freeze Effects 0.000 description 1
- UMUXBDSQTCDPJZ-UHFFFAOYSA-N chromium titanium Chemical class [Ti].[Cr] UMUXBDSQTCDPJZ-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- AMTWCFIAVKBGOD-UHFFFAOYSA-N dioxosilane;methoxy-dimethyl-trimethylsilyloxysilane Chemical compound O=[Si]=O.CO[Si](C)(C)O[Si](C)(C)C AMTWCFIAVKBGOD-UHFFFAOYSA-N 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 150000004678 hydrides Chemical class 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 229940083037 simethicone Drugs 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model discloses a device for storing and pressurizing low-pressure hydrogen, which comprises a low-pressure buffer (11), pressurizing equipment (2), a high-pressure buffer (12) and a solid hydrogen storage tank (3) which are sequentially connected through hydrogen conveying pipelines, wherein hydrogen control valves are arranged on the hydrogen conveying pipelines between adjacent units. The device and the method for storing and pressurizing the low-pressure hydrogen can compress the hydrogen from a low-pressure gas source (0.01-3.0 MPa) to the required hydrogen pressure (3.0-10.0 MPa) through the pressurizing equipment and finally realize hydrogen storage in a solid hydrogen storage mode, and integrate the solid hydrogen storage tank, the constant temperature tank, the low-pressure buffer, the high-pressure buffer, the pressurizing equipment and the constant temperature circulator to form a module device, thereby being beneficial to module integration of the solid hydrogen storage device and application of the module device in practical engineering.
Description
Technical Field
The utility model relates to the technical field of hydrogen energy utilization, relates to a solid-state hydrogen storage system, and provides a device for storing and pressurizing low-pressure hydrogen.
Background
Hydrogen is used as an energy carrier, has the advantages of high energy heat value density, cyclic utilization and no pollution in emission, is the best choice for replacing hydrocarbon fossil fuel at the present stage, and has increasingly aroused great interest in academia and industry of various countries. The technical field of hydrogen fuel cells has been popularized and applied in the industries of automobiles, rail transit, ships and the like in recent years, greatly reduces the dependence of high-load traffic on fuel oil, and has wide application prospect.
The storage and transportation of hydrogen are key problems affecting the effective development of hydrogen energy, wherein the principle of a solid hydrogen storage mode is that hydrogen can react with an alloy hydrogen storage material, cooling or boosting operation is adopted in the reaction process, metal hydride is finally formed to store hydrogen, and the stored hydrogen can be released from the hydride through heating or reducing operation and the like. Compared with gaseous hydrogen storage, the solid hydrogen storage mode has greatly reduced hydrogen storage pressure, high safety performance, reduced volume of the hydrogen storage container, improved overall volume hydrogen storage density and convenient transportation.
The platform pressure of the hydrogen storage material in the hydrogen absorption and desorption process is related to the temperature, accords with Van't Hoff equation, and after hydrogen absorption is carried out at lower temperature and lower pressure, the temperature of the material is increased to higher temperature, so that the hydrogen desorption pressure is correspondingly increased, and the compression of hydrogen can be completed according to the principle. Compared with other compression modes, the metal hydride supercharging method utilizes thermal drive, can recycle waste heat in industrial processes, and improves energy utilization rate. In addition, the solid hydrogen storage material has high selectivity and can purify hydrogen simultaneously in the hydrogen storage and release processes.
The current alkaline water electrolysis hydrogen production technology level and the device scale in China are in the front of the world, the pressure of the general alkaline water electrolysis hydrogen production is lower than 1.6MPa, and the hydrogen production pressure of the methanol reforming hydrogen production is about 0-2.5 MPa. However, most hydrogen storage equipment or terminals of using devices have larger pressure requirements, generally more than 3MPa, and the hydrogen produced by the method cannot be directly applied, and can be supplied to the application terminals only through steps such as compression by a compressor, thereby increasing the cost and energy consumption of the equipment. In view of the above, an apparatus and method for low pressure hydrogen storage and pressurization are provided.
Disclosure of Invention
In order to solve the problems, the utility model provides a device for storing and pressurizing low-pressure hydrogen, wherein a first part of the device comprises a low-pressure buffer (11) for collecting hydrogen of a hydrogen source, pressurizing equipment (2) for compressing the low-pressure hydrogen and a high-pressure buffer (12) for collecting compressed hydrogen, and the whole part is a compression part for compressing the hydrogen generated by the low-pressure gas source. The second part comprises a solid-state hydrogen storage tank (3) for hydrogen storage, a constant temperature tank (5) and a constant temperature circulator (4) for heat exchange of the solid-state hydrogen storage tank, and the whole part is used as a hydrogen storage part for storing or outputting compressed hydrogen.
The device integrates the components into a module, and can be transported or stored as a whole according to the requirements. The module provides a quick connector to facilitate connection to a hydrogen input device or a hydrogen use device.
The low-pressure buffer (11) and the high-pressure buffer (12) are stainless steel pressure vessels, the low-pressure buffer (11) is used for collecting low-pressure hydrogen input by a hydrogen source, and the high-pressure buffer (12) is used for collecting high-pressure hydrogen output by pressurizing equipment, so that the hydrogen flow of the compressed part is stable. The configuration of the high pressure buffer (12) is different from the low pressure buffer, which is convenient for distinguishing.
Further, pressure sensors are respectively arranged at the inlets of the low-pressure buffer (11) and the high-pressure buffer (12) and are used for detecting the pressure of the hydrogen in the pipeline before and after pressurization.
The pressurizing device (2) is connected between the low-pressure buffer (11) and the high-pressure buffer (12) and is used for compressing the hydrogen collected by the low-pressure buffer (11) and outputting the hydrogen to the high-pressure buffer (12).
The supercharging equipment (2), the high-pressure buffer (12) and the solid hydrogen storage tank (3) are provided with safety release equipment.
Further, the pressurizing device (2) uses a metal hydride compressor, and realizes the hydrogen absorption and desorption circulation of the metal hydride through the switching of a cold heat exchange medium and a hot heat exchange medium, and simultaneously compresses the hydrogen from low pressure to high pressure.
Further, the hydrogen conveying pipeline also comprises a hydrogen bypass pipeline which is directly connected with the low-pressure gas source and the solid hydrogen storage tank (3). The supercharging equipment is provided with a hydrogen bypass pipeline for directly storing hydrogen with pressure of more than 3 MPa.
The solid hydrogen storage tank (3) is made of one of S31603, S31608 and 6061 aluminum alloy, and is filled with hydrogen storage alloy materials, so that hydrogen is stored and released in a solid hydrogen storage mode.
Furthermore, the outside of the solid-state hydrogen storage tank (3) is welded with an installation positioning plate, so that a plurality of hydrogen storage tanks can be arranged and fixed conveniently.
Further, the solid hydrogen storage tanks (3) are all provided with saddles, so that the saddles are convenient to fix in the constant temperature tank (5).
Further, a hydrogen inlet and outlet is formed in one end of the solid hydrogen storage tank (3) and is used for allowing hydrogen to enter the solid hydrogen storage tank (3) to react with the hydrogen storage alloy material and discharging the hydrogen released by the hydrogen storage alloy material out of the hydrogen storage tank; the inlet and outlet are provided with needle valves with filter discs. The front end of the hydrogen inlet and outlet is converged into the main pipeline of the gas path through a filter and a converging four-way valve.
Further, the other end of the solid hydrogen storage tank (3) is provided with a charging port, the charging port is sealed by a plug, the charging or discharging of the hydrogen storage alloy material is facilitated, and a temperature measuring sleeve is arranged on the plug and used for extending into a thermocouple to measure the internal temperature of the hydrogen storage tank.
Preferably, the hydrogen storage alloy material is a rare earth series AB 5 Or titanium chromium series AB 2 The alloy and the copper powder are mixed in the hydrogen storage alloy material, so that the heat conduction performance and the pulverization phenomenon of the hydrogen storage material are improved.
The constant temperature tank (5) is provided with a liquid inlet and a liquid outlet for inflow and outflow of heat exchange medium; the hydrogen inlet and outlet pipe orifices are arranged at the same time, and the hydrogen storage tank is used for being connected with the main pipeline of the gas circuit in a tandem way through the pipe orifices; a temperature sensor interface is arranged for monitoring the temperature of the heat exchange medium in the thermostatic bath (5).
Further, a sealing cover is arranged at the upper part of the constant temperature tank (5) to prevent heat exchange medium leakage and dust and dirt from entering;
further, a fixed baffle is arranged in the constant temperature tank (5) and is used for being matched with the installation locating plate on the hydrogen storage tank to fix the hydrogen storage tank.
The constant temperature circulator (4) mainly comprises a liquid tank, a circulating pump, a temperature sensor, a heating pipe and a refrigerator. The constant temperature circulator (4) has the functions of controlling temperature and fluid circulation, and can circulate the heat exchange medium through the constant temperature tank according to requirements, so as to provide stable working temperature for the hydrogen storage tank.
Preferably, the heating pipe is a stainless steel heating pipe, the refrigerator is full copper pipe air-cooled refrigeration, and the working temperature range which can be provided by the constant temperature circulator (4) is-35-200 ℃.
Preferably, the heat exchange medium used in the liquid tank is an automobile antifreeze (below 8 ℃), water (8-80 ℃) and simethicone (80-200 ℃).
Further, the buffer can play a role in stabilizing the flow of the hydrogen absorption and desorption links in the solid hydrogen storage, and the reduction of the hydrogen supply quantity caused by pressure fluctuation is avoided. And secondly, the device uses a constant temperature circulator, integrates heating, cooling and circulation, can effectively treat the thermal effect in the solid hydrogen storage process, and greatly improves the stability of the hydrogen storage material in the hydrogen absorption and desorption processes.
The utility model has the beneficial effects that:
the utility model provides a device and a method for low-pressure hydrogen storage and pressurization, which are used for pressurizing hydrogen from a low-pressure gas source (0.01-3.0 MPa) to the required hydrogen pressure (3.0-10.0 MPa) in a compression and solid-state hydrogen storage mode and finally realizing the solid-state hydrogen storage. The method compresses low-pressure hydrogen to a required pressure through pressurizing equipment, integrates the solid-state hydrogen storage tank, the constant temperature tank, the low-pressure buffer, the high-pressure buffer, the pressurizing equipment and the constant temperature circulator to form a module device, and is beneficial to module integration of the solid-state hydrogen storage device and application of the module device in actual engineering.
Drawings
Fig. 1 is a schematic flow chart of the device.
Fig. 2 is a schematic diagram of a metal hydride compressor.
In the figure, a filter 13, a low-pressure buffer 11, a pressurizing device 2, a high-pressure buffer 12, an inlet solenoid valve 22, an outlet solenoid valve 23, an inlet pressure sensor 24, an outlet pressure sensor 25, a gas control valve 31, a control valve 32, a solid hydrogen storage tank 3, a constant temperature circulator 4, a constant temperature tank 5, a liquid inlet 41, a liquid outlet 42, a pressurizing solid hydrogen storage tank 211, a high temperature circulator 212, a low temperature circulator 213, an inlet solenoid valve 214, and an outlet solenoid valve 215.
Detailed Description
The utility model provides a device for storing and pressurizing low-pressure hydrogen, which comprises a low-pressure buffer 11, a pressurizing device 2, a high-pressure buffer 12, a solid-state hydrogen storage tank 3, a constant-temperature circulator 4, a constant-temperature tank 5, corresponding fluid pipelines, valves and measurement and control equipment. The low-pressure hydrogen is compressed by the pressurizing equipment, and the compressed hydrogen is stored in the hydrogen storage part and can be used subsequently.
Example 1
Referring to fig. 1, a device for storing and pressurizing low-pressure hydrogen mainly comprises a low-pressure buffer 11, pressurizing equipment 2, a high-pressure buffer 12 and a solid hydrogen storage tank 3 which are sequentially connected through hydrogen conveying pipelines, wherein hydrogen control valves are arranged on the hydrogen conveying pipelines between adjacent units;
the inlet end of the hydrogen conveying pipeline is connected with a low-pressure hydrogen source, the low-pressure gas source is residual internal hydrogen of an electrolytic hydrogen production, a methanol reforming hydrogen production or a low-pressure hydrogen cylinder, the pressure range of the hydrogen inlet is 0.01-3.0 MPa, and the low-pressure hydrogen conveying pipeline is suitable for hydrogen compression of medium-low pressure degree; the outlet end of the hydrogen conveying pipeline is connected with an external hydrogen system, and the outlet pressure range is 3.0-10.0 MPa;
the inlet end of the hydrogen delivery conduit is provided with a filter 13.
The low-pressure buffer 11 and the high-pressure buffer 12 are stainless steel pressure containers, comprise spherical sealing heads and cylinder bodies, are placed on a support side by side, are provided with positioning plates and reinforcing rib plates, and are fixed in the device and used for positioning and restraining the low-pressure buffer 11 and the high-pressure buffer 12. The two buffers are not identical in length to facilitate discrimination.
The compression section is specifically described below.
The low-pressure hydrogen enters from the inlet and passes through the filter 13 and is converged into the low-pressure buffer 11, and the accuracy of the filter 13 is less than 1μm. The low pressure buffer 11 may collect hydrogen from the hydrogen source to provide a continuous hydrogen input for the next compression step.
Specifically, the low-pressure gas source can be hydrogen in the hydrogen production by electrolysis, hydrogen production by methanol reforming and hydrogen in the low-pressure hydrogen tank.
In one embodiment, a hydrogen bypass line is arranged behind the filter 13, and the source hydrogen which does not need to be compressed can be directly connected to the solid hydrogen storage tank 3 through the hydrogen bypass line.
The hydrogen gas taken in by the low-pressure buffer 11 is subjected to hydrogen compression by the pressurizing device 2.
In one embodiment, the supercharging device 2 is a metal hydride compressor. The pressurizing device 2, the high-pressure buffer 12 and the solid hydrogen storage tank 3 are all provided with safety release devices.
The metal hydride compressor 21 is structured and operated by combining two pressurized solid hydrogen storage tanks 211, wherein the pressurized solid hydrogen storage tanks 211 adopt a heat exchanger structure, the inside is filled with a hydrogen storage material for pressurization, and the outside is provided with a fluid space. When hydrogen is absorbed and desorbed, the inlet electromagnetic valve 214 and the outlet electromagnetic valve 215 switch the flow channel direction, so that the hydrogen enters or flows out of the corresponding pressurizing solid hydrogen storage tank, and continuous compression can be completed. When the pressurized solid hydrogen storage tank 211 works, the heat effect generated when the material absorbs or releases hydrogen is treated by the circulating heating and cooling medium, the circulating heating medium is provided by the high-temperature circulator 212, the circulating cooling medium is provided by the low-temperature circulator 213, and the flowing direction of the circulating medium is controlled by a water valve connected to a fluid space channel outside the hydrogen storage tank.
Specifically, the hydrogen storage material for pressurization is AB 2 The hydrogen storage material provides an outlet hydrogen pressure of greater than 8MPa at a temperature of about 80 ℃.
In one embodiment, the hydrogen storage material for pressurization is AB 5 The hydrogen storage material provides an outlet hydrogen pressure of greater than 2MPa at a temperature of about 80 ℃.
The high-pressure hydrogen gas formed after being compressed by the pressurizing device 2 is collected into the high-pressure buffer 12, and the high-pressure buffer 12 collects the compressed high-pressure hydrogen gas and is used as a gas source of a subsequent solid hydrogen storage part.
The pressurizing part is provided with an inlet electromagnetic valve 22, an outlet electromagnetic valve 23, an inlet pressure sensor 24 and an outlet pressure sensor 25 at the front and back of the pressurizing device 2, and is used for monitoring the pressure inside the device and correspondingly controlling the opening and closing of the valve. When the compression part pressurizes the low-pressure hydrogen to a set value, an audible and visual alarm prompt is given, and the valve is automatically closed.
Example two
Referring to fig. 1, a device for low-pressure hydrogen storage and pressurization, the hydrogen storage part of which mainly includes a solid hydrogen storage tank 3, a thermostatic bath 5, and a thermostatic circulator 4. The solid-state hydrogen tank 3 serves to store the high-pressure hydrogen gas after the compression portion treatment and can output the stored hydrogen gas to a hydrogen load. The hydrogen storage tank 3 is placed in the constant temperature tank 5, the constant temperature tank 5 is of a cuboid structure, the constant temperature tank is formed by welding stainless steel plates, and a heat exchange medium inlet and a heat exchange medium outlet, a hydrogen inlet and a hydrogen outlet and a temperature measuring port are respectively reserved on the side walls of the constant temperature tank. The constant temperature circulator 4 is used for carrying out heat exchange treatment on the solid hydrogen storage tank.
The hydrogen storage section will be specifically described below.
Further, the separator is arranged in the hydrogen storage tank 3, and the length of the separator is consistent with the length of the cylinder body of the hydrogen storage tank, so that the heat transfer performance of the hydrogen storage tank is facilitated.
When the high-pressure hydrogen stored in the high-pressure buffer 12 reaches the specified requirement, the gas control valve 31 is opened, the hydrogen enters the solid-state hydrogen storage tank 3 from the high-pressure buffer 12 and reacts with the hydrogen storage alloy material in the hydrogen storage tank, at the moment, the liquid inlet 41 and the liquid outlet 42 of the constant-temperature circulator 4 are opened to provide a low-temperature circulating heat exchange medium for the constant-temperature tank 5, and heat generated by the hydrogen absorption reaction of the hydrogen storage alloy material in the solid-state hydrogen storage tank 3 is taken away. When the hydrogen absorption of the hydrogen storage alloy material reaches saturation, the control valve is closed, and the high-pressure hydrogen is stored in the hydrogen storage alloy material.
When the high-pressure hydrogen is needed at the hydrogen using end, the liquid inlet 41 and the liquid outlet 42 of the constant temperature circulator 4 are opened to provide a high-temperature circulation heat exchange medium for the constant temperature tank 5, at the moment, the hydrogen storage alloy material can undergo a hydrogen release reaction to release the stored high-pressure hydrogen, and then the control valve 32 is opened to output the high-pressure hydrogen to the hydrogen using end.
In one embodiment, the number of solid hydrogen storage tanks 3 may be combined in a modular manner to meet the requirements of different hydrogen loadings.
Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.
Claims (8)
1. A device for low pressure hydrogen storage and pressurization, characterized by: the device comprises a low-pressure buffer (11), a supercharging device (2), a high-pressure buffer (12) and a solid hydrogen storage tank (3) which are sequentially connected through hydrogen conveying pipelines, wherein hydrogen control valves are arranged on the hydrogen conveying pipelines between adjacent units;
the inlet end of the hydrogen conveying pipeline is connected with a low-pressure hydrogen source, the low-pressure gas source is residual internal hydrogen of an electrolytic hydrogen production, a methanol reforming hydrogen production or a low-pressure hydrogen cylinder, the pressure range of the hydrogen inlet is 0.01-3.0 MPa, and the low-pressure hydrogen conveying pipeline is suitable for hydrogen compression of medium-low pressure degree; the outlet end of the hydrogen conveying pipeline is connected with an external hydrogen system, and the outlet pressure is 3.0-10.0 MPa.
2. The device for low pressure hydrogen storage and pressurization according to claim 1, characterized in that said hydrogen delivery conduit further comprises a hydrogen bypass line directly connecting the low pressure gas source with the solid hydrogen storage tank (3).
3. The device for low-pressure hydrogen storage and pressurization according to claim 1, characterized in that it further comprises a thermostatic circulator (4), a thermostatic bath (5) and corresponding fluid lines, a valve and a measurement and control device, the solid hydrogen storage tank (3) being arranged inside the thermostatic bath (5).
4. A device for low-pressure hydrogen storage and pressurization according to claim 3, characterized in that said thermostatic bath (5) is cooled or heated by means of a cyclic refrigeration and heating medium, operating in the temperature interval: -30-200 ℃.
5. The device for low-pressure hydrogen storage and pressurization according to claim 1, characterized in that the pressurization equipment (2), the high-pressure buffer (12) and the solid hydrogen storage tank (3) are all provided with safety release equipment.
6. The apparatus for low pressure hydrogen storage and pressurization according to claim 1, characterized in that the pressurization device (2) uses a metal hydride compressor.
7. The device for storing and pressurizing low-pressure hydrogen according to claim 1, wherein a hydrogen inlet and a hydrogen outlet are formed in one end of the solid hydrogen storage tank (3), a needle valve with a filter disc is arranged at the inlet and the outlet, the front end of the hydrogen inlet and the outlet is converged into a hydrogen conveying main pipeline through a filter and a converging four-way joint, and the converging four-way joint is provided with a stop valve.
8. Device for low-pressure hydrogen storage and pressurization according to claim 1, characterised in that the inlet end of the hydrogen delivery conduit is provided with a filter (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321396871.0U CN220792791U (en) | 2023-06-03 | 2023-06-03 | Device for storing and pressurizing low-pressure hydrogen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321396871.0U CN220792791U (en) | 2023-06-03 | 2023-06-03 | Device for storing and pressurizing low-pressure hydrogen |
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| Publication Number | Publication Date |
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| CN220792791U true CN220792791U (en) | 2024-04-16 |
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|---|---|---|---|
| CN202321396871.0U Active CN220792791U (en) | 2023-06-03 | 2023-06-03 | Device for storing and pressurizing low-pressure hydrogen |
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| Country | Link |
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| CN (1) | CN220792791U (en) |
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2023
- 2023-06-03 CN CN202321396871.0U patent/CN220792791U/en active Active
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