CN116624761A - Composite hydrogen storage system and method - Google Patents
Composite hydrogen storage system and method Download PDFInfo
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- CN116624761A CN116624761A CN202310597110.XA CN202310597110A CN116624761A CN 116624761 A CN116624761 A CN 116624761A CN 202310597110 A CN202310597110 A CN 202310597110A CN 116624761 A CN116624761 A CN 116624761A
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- hydrogen storage
- hydrogen
- evaporation
- storage tank
- dewar
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- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 225
- 239000001257 hydrogen Substances 0.000 title claims abstract description 225
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 221
- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000002131 composite material Substances 0.000 title claims description 15
- 239000007788 liquid Substances 0.000 claims abstract description 64
- 238000001704 evaporation Methods 0.000 claims abstract description 52
- 230000008020 evaporation Effects 0.000 claims abstract description 44
- 238000010438 heat treatment Methods 0.000 claims abstract description 20
- 150000001875 compounds Chemical class 0.000 claims abstract description 12
- 239000000126 substance Substances 0.000 claims abstract description 10
- 238000003795 desorption Methods 0.000 claims abstract description 9
- 238000001179 sorption measurement Methods 0.000 claims abstract description 9
- 238000005057 refrigeration Methods 0.000 claims description 23
- 238000004590 computer program Methods 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 6
- 239000011229 interlayer Substances 0.000 claims description 5
- 239000010410 layer Substances 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 229920006395 saturated elastomer Polymers 0.000 claims description 5
- 239000011358 absorbing material Substances 0.000 claims description 4
- 239000012774 insulation material Substances 0.000 claims description 4
- 150000002431 hydrogen Chemical class 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000004146 energy storage Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002109 single walled nanotube Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000011232 storage material Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
- F17C5/02—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with liquefied gases
- F17C5/04—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with liquefied gases requiring the use of refrigeration, e.g. filling with helium or hydrogen
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C3/00—Vessels not under pressure
- F17C3/02—Vessels not under pressure with provision for thermal insulation
- F17C3/08—Vessels not under pressure with provision for thermal insulation by vacuum spaces, e.g. Dewar flask
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C3/00—Vessels not under pressure
- F17C3/02—Vessels not under pressure with provision for thermal insulation
- F17C3/08—Vessels not under pressure with provision for thermal insulation by vacuum spaces, e.g. Dewar flask
- F17C3/085—Cryostats
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/01—Shape
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/03—Orientation
- F17C2201/032—Orientation with substantially vertical main axis
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/03—Thermal insulations
- F17C2203/0391—Thermal insulations by vacuum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
- F17C2227/03—Heat exchange with the fluid
- F17C2227/0302—Heat exchange with the fluid by heating
- F17C2227/0304—Heat exchange with the fluid by heating using an electric heater
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention relates to a compound hydrogen storage system and a method, comprising a liquid hydrogen storage Dewar, an evaporation hydrogen storage tank connected with the liquid hydrogen storage Dewar through a pipeline, and a reliquefaction refrigerating system which is arranged on the side of the liquid hydrogen storage Du Washang and communicated with the inside of the liquid hydrogen storage Dewar, wherein the reliquefaction refrigerating system is communicated with the evaporation hydrogen storage tank; the evaporation hydrogen storage tank is filled with hydrogen absorbing substances, and a heating device is arranged in the evaporation hydrogen storage tank; the heating device heats the hydrogen in the evaporation hydrogen storage tank to the temperature required by desorption, and the liquefaction refrigerating system cools and liquefies the hydrogen heated and desorbed in the evaporation hydrogen storage tank, so that the liquefied hydrogen is stored in the liquid hydrogen storage Dewar. The invention can simplify the desorption process, is more efficient and reliable by combining the low-temperature reliquefaction storage and normal-temperature adsorption, and can realize zero evaporation of liquid hydrogen for a long time.
Description
Technical Field
The invention belongs to the field of liquid hydrogen storage, and particularly relates to a composite hydrogen storage system and method.
Background
The hydrogen energy has the advantages of high heat value, environmental protection, recycling and the like, and has wide development prospect as an ideal energy source. In the development and use of hydrogen energy, a hydrogen energy storage link is a core part. Many studies have been made in various countries on the development of hydrogen storage technologies, and it is desired to find and develop a safe, inexpensive and efficient method for storing hydrogen for a long period of time. The liquid hydrogen storage method has the advantages of low storage pressure, high energy storage density and the like, and is a widely applied technology in hydrogen energy storage, but when liquid hydrogen is stored for a long time, a large amount of hydrogen evaporation loss can be generated by the liquid hydrogen, so that the zero-evaporation storage technology becomes a key difficult technology for liquid hydrogen storage.
For the loss caused by the evaporation of liquid hydrogen, the main solutions at present include the following two methods:
the first is to adsorb and store the vaporized hydrogen. The storage material comprises: 1. the metal material is adsorbed at room temperature and normal pressure. The Chinese patent publication No. CN101680600A discloses a gas pressure vessel containing an organic metal framework material and a phase-change energy storage material device, and the scheme is adopted, the adsorption hydrogen amount is higher, the desorption process is complex, and the heat required in the desorption process is larger; 2. and (3) adsorbing the single-walled carbon nano tube at high temperature and high pressure. The literature on the study of the hydrogen storage performance of single-wall carbon nanotubes shows that the weight density of hydrogen can reach 8.25wt% at the temperature of 80K and the pressure of 4Mpa to 8Mpa, and although the method can store a certain amount of evaporated hydrogen, the hydrogen can be adsorbed and saturated after a long time, a low-temperature and high-pressure environment needs to be additionally provided, and the total amount of liquid hydrogen can be lost.
The second is to actively refrigerate and reliquefy the evaporated hydrogen to achieve the effect of zero evaporation. The hydrogen stored in the form of liquid hydrogen has higher storage density, but the active refrigeration equipment has long-term operation reliability problem, once the active refrigeration equipment is stopped for reasons, the liquid hydrogen is evaporated continuously due to the huge temperature difference between the ambient temperature and the liquid hydrogen. Solid hydrogen absorption or organic solution hydrogen storage have the problem of low hydrogen storage density.
Disclosure of Invention
The invention aims to: an object of the present invention is to provide a composite hydrogen storage system, which can simplify the desorption process, and by combining the low-temperature reliquefaction storage and normal-temperature adsorption, is more efficient and reliable, and can realize zero evaporation of liquid hydrogen for a long time; another object of the present invention is to provide a method for storing hydrogen in a hybrid form.
The technical scheme is as follows: the invention relates to a composite hydrogen storage system, which comprises a liquid hydrogen storage Dewar, an evaporation hydrogen storage tank connected with the liquid hydrogen storage Dewar through a pipeline, and a reliquefaction refrigerating system which is arranged on the side of the liquid hydrogen storage Du Washang and communicated with the inside of the liquid hydrogen storage Dewar, wherein the reliquefaction refrigerating system is communicated with the evaporation hydrogen storage tank; the evaporation hydrogen storage tank is filled with hydrogen absorbing substances, and a heating device is arranged in the evaporation hydrogen storage tank; the heating device heats the hydrogen in the evaporation hydrogen storage tank to the temperature required by desorption, and the liquefaction refrigerating system cools and liquefies the hydrogen heated and desorbed in the evaporation hydrogen storage tank, so that the liquefied hydrogen is stored in the liquid hydrogen storage Dewar.
The liquid hydrogen storage dewar adopts a vacuum sandwich structure, a cold screen is arranged between the sandwich layers, and the periphery of the cold screen is wrapped with a heat insulation material, so that the inside of the liquid hydrogen storage dewar is kept in a low-temperature state.
And the evaporating hydrogen storage tank is filled with a solid hydrogen absorbing material or an organic hydrogen absorbing solution.
The cold source of the reliquefaction refrigerating system adopts a single-stage or double-stage low-temperature refrigerator, desorbed hydrogen exchanges heat with the refrigerator cold head heat exchanger, and the liquefied hydrogen flows into the liquid hydrogen storage Dewar to provide enough cold energy, so that the normal-temperature hydrogen desorbed from the hydrogen storage tank exchanges heat with the low-temperature refrigerator cold head and is liquefied.
The liquid hydrogen storage Dewar is connected with the reliquefaction refrigerating system through a transfusion tube with a vacuum interlayer.
The evaporating hydrogen storage tank is connected with the reliquefaction refrigeration system through a metal pipeline.
The heating device adopts an electric heater or a heating wire, and can be used for heating the inside of the adsorption Dewar to desorb the hydrogen at the required temperature.
The invention also comprises a compound hydrogen storage method which is applied to the compound hydrogen storage system and comprises the following steps: under the stop state of the liquefaction refrigeration system, the hydrogen evaporated in the liquid hydrogen storage Dewar directly enters an evaporation hydrogen storage tank through a pipeline and is adsorbed by hydrogen absorbing substances in the evaporation hydrogen storage tank; after the adsorption of the hydrogen-absorbing substances is saturated, the evaporation hydrogen storage tank is heated by the heating device until the hydrogen adsorbed in the evaporation hydrogen storage tank is desorbed, the reliquefaction refrigeration system is operated, the released hydrogen enters the reliquefaction refrigeration system through a pipeline and is liquefied, and the liquefied hydrogen is stored in the liquid hydrogen Dewar.
The invention also includes an apparatus device comprising a memory and a processor, wherein:
a memory for storing a computer program capable of running on the processor;
and a processor for executing the steps of the compound hydrogen storage method when the computer program is run.
The invention also includes a computer readable storage medium having stored thereon a computer program which when executed by at least one processor performs the steps of the compound hydrogen storage method.
The beneficial effects are that: compared with the prior art, the technical scheme of the invention has the beneficial effects that:
(1) Compared with the traditional high-pressure hydrogen storage, the liquid hydrogen storage is adopted, zero evaporation is realized by combining the reliquefaction equipment, and the hydrogen storage density is high;
(2) The reliquefaction device is combined with a normal temperature adsorption mode to treat liquid hydrogen to evaporate hydrogen, so that the system has better flexibility and higher reliability;
(3) Compared with the conventional zero-evaporation liquid hydrogen storage tank, the re-liquefaction refrigeration system can be stopped for a long time, the whole energy consumption is low, and the zero-evaporation requirement of the larger liquid hydrogen storage tank can be met;
(4) The hydrogen amount of the whole system is not lost, and the internal pressure of the system is not increased along with the evaporation of liquid hydrogen;
(5) The vaporized hydrogen can be quickly reliquefied into liquid hydrogen, and the operation is simple. The whole structure is closed loop, and the purity of liquid hydrogen is not affected.
Drawings
FIG. 1 is a schematic diagram of a composite hydrogen storage system according to the present invention;
fig. 2 is a schematic view of a cold head heat exchanger according to the present invention.
Detailed Description
The technical scheme of the invention is described in detail below with reference to the detailed description and the attached drawings.
As shown in fig. 1, the composite hydrogen storage system of the present invention comprises a liquid hydrogen storage dewar 1, an evaporated hydrogen storage tank 2, a heating device 3, a transfusion tube 4 and a re-liquefaction refrigeration system 5. The vaporized hydrogen storage tank 2 is connected with the liquid hydrogen storage Dewar 1 through a pipeline, and the reliquefaction refrigeration system 5 is arranged above the liquid hydrogen storage Dewar 1 and is communicated with the inside of the liquid hydrogen storage Dewar 1. The liquid hydrogen storage Dewar 1 is connected with the reliquefaction refrigeration system 5 through a transfusion tube 4 with a vacuum interlayer. The reliquefaction refrigeration system 5 is communicated with the evaporated hydrogen storage tank 2; specifically, the vaporized hydrogen storage tank 2 is connected with the reliquefaction refrigeration system 5 through a metal pipeline 6, and in the scheme, stainless steel pipes are adopted.
The liquid hydrogen storage Dewar 1 adopts a vacuum sandwich structure, a cold screen is arranged between the sandwich layers, and the periphery of the cold screen is wrapped with a heat insulation material, so that the inside of the Dewar can be kept in a low-temperature state. In the scheme, the inner containers of the liquid hydrogen storage Dewar 1 and the evaporating hydrogen storage tank 2 are all conventional containers in the field, such as cylindrical containers made of 304/316L stainless steel, the inner container seal head is preferably a butterfly seal head, a double-layer vacuum tank structure is adopted, a cold screen is arranged in an interlayer, and a plurality of layers of heat insulation materials need to be wrapped.
The vaporized hydrogen storage tank 2 is filled with a hydrogen-absorbing substance, preferably a solid hydrogen-absorbing material or an organic hydrogen-absorbing solution, for absorbing hydrogen gas vaporized from liquid hydrogen when the hydrogen re-liquefaction refrigeration system 5 is shut down.
In order to enable the hydrogen to be desorbed into the re-liquefaction refrigeration system 5, the heating device 3 is arranged in the evaporation hydrogen storage tank 2, and the inside of the storage tank is heated so that the hydrogen is desorbed into the re-liquefaction refrigeration device. The heating device 3 adopts an electric heater or a heating wire, and can heat the hydrogen in the vaporized hydrogen storage tank 2 to the temperature required by desorption.
The cold source of the re-liquefying refrigerating system 5 adopts a single-stage or double-stage low-temperature refrigerator, desorbed hydrogen exchanges heat with the refrigerator cold head heat exchanger, and the liquefied hydrogen flows into the liquid hydrogen storage Dewar 1 to provide enough cold energy, so that the normal-temperature hydrogen desorbed from the hydrogen storage tank exchanges heat with the low-temperature refrigerator cold head and is liquefied. The cryocooler may be a GM type, pulse tube type or other common type of refrigerator.
The working process of the composite hydrogen storage system is as follows: the liquid hydrogen stored in the liquid hydrogen storage Dewar 1 is evaporated due to external heat leakage, the evaporated hydrogen enters a cold head of a refrigerator in the reliquefaction refrigeration system 5 through a perfusion tube 4 with a vacuum interlayer, and is condensed into liquid hydrogen at the cold head, and the liquid hydrogen is dripped into the liquid hydrogen storage Dewar 1 under the action of gravity. When the refrigerator of the liquid hydrogen storage Dewar 1 is stopped, the hydrogen evaporated in the liquid hydrogen storage Dewar 1 directly enters the evaporation hydrogen storage tank 2, and is absorbed by the solid hydrogen absorbing material or the organic hydrogen absorbing solution in the evaporation hydrogen storage tank 2. When the solid hydrogen absorption material or the organic hydrogen absorption solution for storing hydrogen is saturated, the hydrogen absorption saturation in the evaporation hydrogen storage tank 2 is shown, the refrigerator of the reliquefaction refrigerating system 5 is started again, the heating device 3 is used for heating the evaporation hydrogen storage tank 2, the hydrogen absorbed in the evaporation hydrogen storage tank 2 is desorbed, when the evaporation hydrogen storage tank 2 is heated to the temperature of hydrogen desorption, the hydrogen is released, the desorbed hydrogen enters the reliquefaction refrigerating system 5 through the metal pipeline 6 for cooling and liquefying, and the liquefied hydrogen is stored in the liquid hydrogen storage Dewar 1. From the above, the scheme combines the two modes of reliquefaction hydrogen storage and normal-temperature adsorption hydrogen storage, and is more reliable and efficient.
The invention also comprises a compound hydrogen storage method which is applied to the compound hydrogen storage system and comprises the following steps:
under the stop state of the liquefaction refrigeration system, the hydrogen evaporated in the liquid hydrogen storage Dewar directly enters an evaporation hydrogen storage tank through a pipeline and is adsorbed by hydrogen absorbing substances in the evaporation hydrogen storage tank;
after the adsorption of the hydrogen-absorbing substances is saturated, the evaporation hydrogen storage tank is heated by the heating device until the hydrogen adsorbed in the evaporation hydrogen storage tank is desorbed, the reliquefaction refrigeration system is operated, the released hydrogen enters the reliquefaction refrigeration system through a pipeline and is liquefied, and the liquefied hydrogen is stored in the liquid hydrogen Dewar.
The invention also includes an apparatus device comprising a memory and a processor, wherein:
a memory for storing a computer program capable of running on the processor;
and the processor is used for executing the steps of the compound hydrogen storage method when the computer program is run.
The invention also includes a computer readable storage medium having stored thereon a computer program which when executed by at least one processor performs the steps of the compound hydrogen storage method.
Claims (10)
1. A composite hydrogen storage system comprising a liquid hydrogen storage dewar (1), characterized in that: the device also comprises an evaporation hydrogen storage tank (2) connected with the liquid hydrogen storage Dewar (1) through a pipeline, and a reliquefaction refrigerating system (5) which is arranged above the liquid hydrogen storage Dewar (1) and communicated with the inside of the liquid hydrogen storage Dewar, wherein the reliquefaction refrigerating system (5) is communicated with the evaporation hydrogen storage tank (2); the evaporation hydrogen storage tank (2) is filled with hydrogen absorbing substances, and a heating device (3) is arranged in the evaporation hydrogen storage tank (2);
the heating device (3) heats the hydrogen in the evaporation hydrogen storage tank (2) to the temperature required by desorption, and the liquefaction refrigerating system (5) cools and liquefies the hydrogen heated and desorbed in the evaporation hydrogen storage tank (2), so that liquefied hydrogen is stored in the liquid hydrogen storage Dewar (1).
2. The composite hydrogen storage system of claim 1, wherein: the liquid hydrogen storage Dewar (1) adopts a vacuum sandwich structure, a cold screen is arranged between the sandwich layers, and the periphery of the cold screen is wrapped with a heat insulation material.
3. The composite hydrogen storage system of claim 1, wherein: the evaporating hydrogen storage tank (2) is filled with a solid hydrogen absorbing material or an organic hydrogen absorbing solution.
4. The composite hydrogen storage system of claim 1, wherein: the cold source of the reliquefaction refrigerating system (5) adopts a single-stage or double-stage low-temperature refrigerator, desorbed hydrogen exchanges heat with a refrigerator cold head heat exchanger, and after liquefaction, the desorbed hydrogen flows into the liquid hydrogen storage Dewar (1).
5. The composite hydrogen storage system of claim 1, wherein: the liquid hydrogen storage Dewar (1) is connected with the reliquefaction refrigerating system (5) through a transfusion tube (4) with a vacuum interlayer.
6. The composite hydrogen storage system of claim 1, wherein: the evaporating hydrogen storage tank (2) is connected with the reliquefaction refrigeration system (5) through a metal pipeline (6).
7. A composite hydrogen storage system according to any one of claims 1 to 6, wherein: the heating device (3) adopts an electric heater or a heating wire.
8. A method for storing hydrogen in a compound hydrogen storage system according to claim 1, comprising the steps of:
under the stop state of the liquefaction refrigeration system, the hydrogen evaporated in the liquid hydrogen storage Dewar directly enters an evaporation hydrogen storage tank through a pipeline and is adsorbed by hydrogen absorbing substances in the evaporation hydrogen storage tank;
after the adsorption of the hydrogen-absorbing substances is saturated, the evaporation hydrogen storage tank is heated by the heating device until the hydrogen adsorbed in the evaporation hydrogen storage tank is desorbed, the reliquefaction refrigeration system is operated, the released hydrogen enters the reliquefaction refrigeration system through a pipeline and is liquefied, and the liquefied hydrogen is stored in the liquid hydrogen Dewar.
9. An apparatus device comprising a memory and a processor, wherein:
a memory for storing a computer program capable of running on the processor;
a processor for performing the steps of the compound hydrogen storage method of claim 8 when the computer program is run.
10. A computer readable storage medium, wherein a computer program is stored on the storage medium, which computer program, when being executed by at least one processor, implements the steps of the compound hydrogen storage method of claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310597110.XA CN116624761A (en) | 2023-05-24 | 2023-05-24 | Composite hydrogen storage system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310597110.XA CN116624761A (en) | 2023-05-24 | 2023-05-24 | Composite hydrogen storage system and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116624761A true CN116624761A (en) | 2023-08-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310597110.XA Pending CN116624761A (en) | 2023-05-24 | 2023-05-24 | Composite hydrogen storage system and method |
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| Country | Link |
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| CN (1) | CN116624761A (en) |
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2023
- 2023-05-24 CN CN202310597110.XA patent/CN116624761A/en active Pending
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