CN114458945B - Large-sized liquid hydrogen full-capacity tank adopting liquid-gas cooled wall - Google Patents

Large-sized liquid hydrogen full-capacity tank adopting liquid-gas cooled wall Download PDF

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Publication number
CN114458945B
CN114458945B CN202210167186.4A CN202210167186A CN114458945B CN 114458945 B CN114458945 B CN 114458945B CN 202210167186 A CN202210167186 A CN 202210167186A CN 114458945 B CN114458945 B CN 114458945B
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tank
liquid
layer
cooling wall
wall layer
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CN114458945A (en
Inventor
何炜
冯宪高
陈世福
魏颖
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Zhongtai Suzhou Hydrogen Energy Technology Co ltd
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Zhongtai Suzhou Hydrogen Energy Technology Co ltd
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C3/00—Vessels not under pressure
    • F17C3/02—Vessels not under pressure with provision for thermal insulation
    • F17C3/04—Vessels not under pressure with provision for thermal insulation by insulating layers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • 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
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/03—Thermal insulations
    • F17C2203/0304—Thermal insulations by solid means
    • F17C2203/0308—Radiation shield
    • 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
    • F17C2203/0304—Thermal insulations by solid means
    • F17C2203/0325—Aerogel
    • 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
    • F17C2203/0304—Thermal insulations by solid means
    • F17C2203/0329—Foam
    • F17C2203/0333—Polyurethane
    • 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
    • F17C2203/0304—Thermal insulations by solid means
    • F17C2203/0337—Granular
    • F17C2203/0341—Perlite
    • 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
    • F17C2203/0304—Thermal insulations by solid means
    • F17C2203/0345—Fibres
    • F17C2203/035—Glass wool
    • 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
    • F17C2203/0362—Thermal insulations by liquid means
    • F17C2203/0366—Cryogen
    • 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
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0612—Wall structures
    • F17C2203/0626—Multiple walls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0636—Metals
    • F17C2203/0639—Steels
    • F17C2203/0643—Stainless steels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/012—Hydrogen
    • 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

Abstract

The invention provides a large-scale liquid hydrogen full-capacity tank adopting a liquid-gas cold wall, which comprises an outer tank, a dampproof layer, a cold insulation layer, a gas cold wall layer, a liquid cooling wall layer, an inner tank, a tank bottom insulating brick, a tank top, a suspender, suspended ceiling insulation and suspended ceiling, wherein the outer tank is of a prestressed reinforced concrete structure or a metal structure, the dampproof layer is arranged on the inner wall of the outer tank, the dampproof layer is of a metal plate or resin painting structure for blocking water vapor from entering the tank, and the cold insulation layer is of an insulating filling material. The heat insulation mode of the vapor cooling wall improves the heat insulation performance of the traditional storage tank and prolongs the storage time of liquid hydrogen in the storage tank; the invention is used for a land-based large vertical liquid hydrogen full-capacity tank, breaks through the limit of a large hydrogen storage pressure container, adopts a normal low pressure container to meet the hydrogen storage requirement, and is an innovative, safer, more environment-friendly liquid hydrogen storage tank with wider application.

Description

Large-sized liquid hydrogen full-capacity tank adopting liquid-gas cooled wall
Technical Field
The invention belongs to the technical field of liquid hydrogen low-temperature storage devices, and particularly relates to a large-sized liquid hydrogen full-capacity tank adopting a liquid-gas cold wall.
Background
The liquid hydrogen is colorless odorless transparent liquid obtained by liquefying hydrogen, and is a mixture of para-hydrogen (p-H2) and ortho-hydrogen (o-H2). Ortho-hydrogen and para-hydrogen are two spin isomers of molecular hydrogen, which isomerism arises from the two possible couplings of the nuclear spins of the two hydrogen atoms. The nuclear spin directions of the orthohydrogen are the same, and the nuclear spin directions of the para-hydrogen are opposite. The magnetic moment of para-hydrogen molecules is zero and the magnetic moment of ortho-hydrogen molecules is twice the magnetic moment of protons. Para-hydrogen has the same chemical properties as ortho-hydrogen, and is different in physical properties, and is represented by lower ground state energy than ortho-hydrogen. At or above room temperature, the equilibrium composition of normal and para-hydrogen is 75:25, known as standard hydrogen (n-H2) or normal hydrogen. At a temperature lower than normal temperature, the equilibrium composition of the normal para-hydrogen changes, and the proportion of para-hydrogen increases. The normal-to-secondary conversion of gaseous hydrogen occurs in the presence of a catalyst, whereas liquid hydrogen spontaneously occurs in the absence of a catalyst, but at a slower rate. The positive secondary conversion of hydrogen is an exothermic reaction, and the amount of heat evolved during the conversion is related to the temperature at which the conversion occurs. In order to reduce the evaporation loss of liquid hydrogen caused by the exothermic heat of conversion of normal and para-hydrogen, all liquid hydrogen products are required to have para-hydrogen content at least above 95%, i.e. the normal hydrogen is required to be substantially catalytically converted into para-hydrogen during liquefaction.
Hydrogen is used as an emerging energy source, has the advantages of high efficiency, cleanness, no pollution, sustainability and the like, and is one of the most promising clean energy sources at present along with the rapid development of economy and the continuous improvement of environmental management requirements in China.
Along with the influence of domestic development trend and the guidance of policies, the use of liquid hydrogen is approaching to civil market increasingly. Liquid hydrogen is a cryogenic hydrogen storage technology, which is deeply cooled below 21K to become liquid hydrogen and then stored in a special container. The volume energy density of the liquid hydrogen is very high, the density of the liquid hydrogen is 845 times of that of the gaseous hydrogen at normal temperature and normal pressure, 3 times of that of the high-pressure hydrogen at 35Mpa and 2 times of that of the high-pressure hydrogen at 70Mpa, so that the hydrogen storage quality of the hydrogen storage container with the same volume is greatly improved.
But due to the dangers and volatile nature of hydrogen itself, it causes transportation and storage limitations, so it is better and safer to store and transport liquid hydrogen. In addition, chinese patent publication No. CN113864632a, the invention is a liquid hydrogen storage tank, in which an insulating plate is provided inside a tank body, a vertically penetrating cylindrical member is provided on the insulating plate, a pipe is inserted into the liquid hydrogen level through the cylindrical member, and liquid hydrogen is introduced into the tank body from the tank top side through the pipe. However, the existing liquid hydrogen storage tank needs to be improved in terms of heat insulation, heat preservation, insulation and cold preservation performance and the like.
In view of this, it is necessary to invent a large liquid hydrogen total vessel employing a liquid-gas cooled wall.
Disclosure of Invention
In order to solve the technical problems, the invention provides the large-sized liquid hydrogen full-capacity tank with the liquid-gas cooling wall, which can adopt a heat insulation mode of the vapor cooling wall, improve the insulation and cold insulation performance of the traditional storage tank and prolong the storage time of liquid hydrogen in the storage tank.
The large-sized liquid hydrogen full-capacity tank comprises an outer tank, a moisture-proof layer, a cold insulation layer, a gas cooling wall layer, a liquid cooling wall layer, an inner tank, tank bottom insulating bricks, a tank top, a hanging rod, suspended ceiling insulation and a suspended ceiling, wherein the outer tank is of a prestressed reinforced concrete structure or a metal structure, the moisture-proof layer is arranged on the inner wall of the outer tank, the moisture-proof layer is of a metal plate or a resin painting structure for preventing water vapor from entering the tank, and the cold insulation layer is of an insulating filling material and is filled in a space interlayer between the outer tank and the inner tank; the air cooling wall layer and the liquid cooling wall layer are arranged in the middle of the cold insulation layer, and a filled cold insulation layer is arranged between the air cooling wall layer and the outer tank and between the air cooling wall layer and the inner tank; the inner tank is a container with a metal structure; the inner tank is arranged on the insulating brick at the bottom of the tank; the tank bottom insulating brick is arranged on the bottom plate of the outer tank, and an air cooling wall layer and a liquid cooling wall layer are also arranged in the middle of the tank bottom insulating brick; the top of the outer tank is a tank top, and the tank top is a prestressed reinforced concrete structure or a metal structure; the suspended ceiling is arranged on the top of the tank through a suspender, and suspended ceiling insulation is arranged above the suspended ceiling; the air cooling wall layer and the liquid cooling wall layer are also arranged in the suspended ceiling insulation.
Preferably, the cold insulation layer is at least one of a prefabricated bearing polyurethane foam box, pearl sand, vacuum glass beads, aerogel or high vacuum insulation panels, and the thickness range of the cold insulation layer is 400-1200mm.
Preferably, the air cooling wall layer and the liquid cooling wall layer are of a plurality of prefabricated standard tube plate structures, the air cooling wall layer and the liquid cooling wall layer are respectively made of any one of stainless steel, 9% nickel steel, invar steel, aluminum alloy or copper alloy plates, and are arranged in the cold-keeping layer, and in the insulation of the tank bottom insulating bricks and the suspended ceiling, the fully-enclosed tube plate structure is formed.
Preferably, the air cooling wall layer and the liquid cooling wall layer can be independently arranged in the storage tank or can be jointly arranged.
Preferably, the tank bottom insulating brick adopts at least one of foam glass bricks, prefabricated glass fiber reinforced plastic blocks and prefabricated bearing polyurethane foam blocks.
Preferably, the inner tank is at least one of a stainless steel plate, an invar steel plate or an aluminum alloy plate.
Preferably, the suspended ceiling is at least one of a stainless steel plate, a 9% nickel steel plate, an invar steel plate or an aluminum alloy plate, and is suspended and fixed below the tank top through a suspender, and suspended ceiling insulation is paved above the suspended ceiling.
Preferably, the suspended ceiling insulation adopts at least one of glass wool, aerogel, high-vacuum insulation panels or polyurethane foam boards.
Preferably, the air cooling wall layer is used for extracting the gas evaporated from the inner tank by controlling the pressure of the inner tank and adopting external forced air extraction.
Preferably, the liquid cooling wall layer is filled with refrigerating liquid (such as liquid nitrogen, refrigerant and other low-temperature liquid) by controlling the pressure and temperature in the liquid cooling wall layer and adopting external forced circulation.
Compared with the prior art, the invention has the beneficial effects that:
the invention adopts the heat insulation mode of the vapor cooling wall, improves the heat insulation performance of the traditional storage tank and prolongs the storage time of liquid hydrogen in the storage tank; the invention can be used for land large-scale vertical liquid hydrogen storage tanks, can also be used for storage and transportation of liquid hydrogen ship fuel tanks and liquid hydrogen transport ship liquid cargo tanks, breaks through the limit of large-scale hydrogen storage pressure containers, adopts a normal low pressure container to meet the hydrogen storage requirement, is innovative, has wider application, and is safer, more environment-friendly.
Drawings
Fig. 1 is a schematic structural view of the present invention.
In the figure:
1. an outer tank; 2. a moisture barrier; 3. a cold insulation layer; 4. an air-cooled wall layer; 5. a liquid cooling wall layer; 6. an inner tank; 7. tank bottom insulating bricks; 8. a tank top; 9. a boom; 10. insulating a suspended ceiling; 11. and (5) hanging a ceiling.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
examples:
as shown in the attached figure 1, the invention provides a large-scale liquid hydrogen full-capacity tank adopting a liquid-gas cold wall, which comprises an outer tank 1, a moisture-proof layer 2, a cold insulation layer 3, a gas cold wall layer 4, a liquid cooling wall layer 5, an inner tank 6, a tank bottom insulating brick 7, a tank top 8, a hanging rod 9, a suspended ceiling insulating body 10 and a suspended ceiling 11, wherein the outer tank 1 is of a prestressed reinforced concrete structure or a metal structure, the inner wall of the outer tank 1 is provided with the moisture-proof layer 2, the moisture-proof layer 2 is of a metal plate or a resin painting structure for preventing water vapor from entering the tank, and the cold insulation layer 3 is an insulating filling material and is filled in a space interlayer between the outer tank 1 and the inner tank 6; the air cooling wall layer 4 and the liquid cooling wall layer 5 are arranged in the middle of the cold insulation layer 3, and the cold insulation layer 3 filled between the air cooling wall layer 4 and the outer tank 1 and the inner tank 6 is arranged; the inner tank 6 is a container with a metal structure and is used for storing liquid hydrogen, and the inner tank 6 is arranged on the insulating brick 7 at the bottom of the tank; the tank bottom insulating brick 7 is arranged on the bottom plate of the outer tank 1, and an air cooling wall layer 4 and a liquid cooling wall layer 5 are also arranged in the middle of the tank bottom insulating brick 7; the top of the outer tank 1 is a tank top 8, and the tank top 8 is a prestressed reinforced concrete structure or a metal structure; the suspended ceiling 11 is arranged on the tank top 8 through a suspender 9, and a suspended ceiling insulator 10 is arranged above the suspended ceiling 11; an air cooling wall layer 4 and a liquid cooling wall layer 5 are also arranged in the suspended ceiling insulation 10; the air cooling wall layer 4 and the liquid cooling wall layer 5 can be fixed on the outer tank 1, the inner tank 6, the tank top 8 or a self-supporting structure and are arranged on the tank bottom insulating bricks 7.
In the above embodiment, specifically, the cold insulation layer 3 is at least one of a prefabricated load-bearing polyurethane foam box, pearl sand, vacuum glass beads, aerogel or high vacuum insulation panel, and the thickness of the cold insulation layer 3 is set in the range of 400-1200mm.
In the above embodiment, specifically, the air cooling wall layer 4 and the liquid cooling wall layer 5 are formed by a plurality of prefabricated standard tube plate structures, the air cooling wall layer 4 and the liquid cooling wall layer 5 respectively adopt any one of stainless steel, 9% nickel steel, invar steel, aluminum alloy or copper alloy plates, the air cooling wall layer 4 and the liquid cooling wall layer 5 are installed in the cold insulation layer 3, and the tank bottom insulating bricks 7 and the suspended ceiling insulating bricks 10 to form a fully-enclosed tube plate structure.
In the above embodiment, specifically, the pressure of the inner tank 6 is controlled by the air-cooled wall layer 4, and the air evaporated in the inner tank 6 is extracted by external forced air extraction; the liquid cooling wall layer 5 is formed by controlling the pressure and temperature in the liquid cooling wall layer 5, and adopting external forced circulation to fill the liquid cooling wall layer 5 with refrigerating liquid such as liquid nitrogen, refrigerant and other low-temperature liquid; the air cooling wall layer 4 and the liquid cooling wall layer 5 can be independently arranged in the storage tank or can be jointly arranged.
In the above embodiment, specifically, the tank bottom insulating brick 7 is an insulating structure capable of bearing load, and can transfer the weight of the inner tank 6 and the liquid cargo to the bottom plate of the outer tank 1 or even on the foundation; the tank bottom insulating brick 7 adopts at least one of foam glass bricks, prefabricated glass fiber reinforced plastic blocks and prefabricated bearing polyurethane foam blocks; the inner tank 6 is made of at least one of stainless steel plates, invar steel plates or aluminum alloy plates.
In the above embodiment, specifically, the suspended ceiling 11 is at least one of a stainless steel plate, a 9% nickel steel plate, an invar steel plate or an aluminum alloy plate, and is suspended and fixed below the tank top 8 through a suspension rod 9, and a suspended ceiling insulation 10 is laid above the suspended ceiling 11; the suspended ceiling insulation 10 is at least one of glass wool, aerogel, high vacuum insulation board or polyurethane foam board.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. The large-sized liquid hydrogen full-capacity tank adopting the liquid-gas cooling wall is characterized by comprising an outer tank (1), a dampproof layer (2), a cold insulation layer (3), a gas cooling wall layer (4), a liquid cooling wall layer (5), an inner tank (6), a tank bottom insulating brick (7), a tank top (8), a suspender (9), a suspended ceiling insulating layer (10) and a suspended ceiling (11), wherein the outer tank (1) is of a prestressed reinforced concrete structure or a metal structure, the inner wall of the outer tank (1) is provided with a dampproof layer (2), the dampproof layer (2) is of a metal plate or resin painting structure for blocking water vapor from entering the tank, and the cold insulation layer (3) is an insulating filling material and is filled in a space interlayer between the outer tank (1) and the inner tank (6); the air cooling wall layer (4) and the liquid cooling wall layer (5) are arranged in the middle of the cold insulation layer (3), and the cold insulation layer (3) filled between the air cooling wall layer and the outer tank (1) and the inner tank (6) is arranged; the inner tank (6) is a container with a metal structure; the inner tank (6) is arranged on the insulating brick (7) at the bottom of the tank; the tank bottom insulating brick (7) is arranged on the bottom plate of the outer tank (1), and an air cooling wall layer (4) and a liquid cooling wall layer (5) are also arranged in the middle of the tank bottom insulating brick (7); the top of the outer tank (1) is a tank top (8), and the tank top (8) is a prestressed reinforced concrete structure or a metal structure; the suspended ceiling (11) is arranged on the tank top (8) through a suspender (9), and a suspended ceiling insulator (10) is arranged above the suspended ceiling (11); an air cooling wall layer (4) and a liquid cooling wall layer (5) are also arranged in the suspended ceiling insulation (10); the air cooling wall layer (4) is used for extracting the gas evaporated from the inner tank (6) by controlling the pressure of the inner tank (6) and adopting external forced air extraction; the liquid cooling wall layer (5) is characterized in that the liquid cooling wall layer (5) is filled with refrigerating liquid by controlling the pressure and the temperature in the liquid cooling wall layer (5) and adopting external forced circulation; the air cooling wall layer (4) and the liquid cooling wall layer (5) are formed by a plurality of prefabricated standard tube plate structures, the air cooling wall layer (4) and the liquid cooling wall layer (5) are arranged in the cold insulation layer (3), and the tank bottom insulating bricks (7) and the suspended ceiling insulating bricks (10) form a fully-enclosed tube plate structure.
2. A large liquid hydrogen full tank using liquid gas cooled wall according to claim 1, wherein the cold insulation layer (3) is at least one of prefabricated bearing polyurethane foam box, pearl sand, vacuum glass beads, aerogel or high vacuum insulation panel, and the thickness of the cold insulation layer (3) is set in the range of 400-1200mm.
3. The large-scale liquid hydrogen full tank adopting the liquid-gas cooled wall as claimed in claim 1, wherein the gas cooled wall layer (4) and the liquid cooled wall layer (5) are respectively made of any one of stainless steel, 9% nickel steel, invar steel, aluminum alloy or copper alloy plates.
4. A large liquid hydrogen total vessel employing a liquid-gas cooled wall as claimed in claim 1, wherein the gas cooled wall layer (4) and the liquid cooled wall layer (5) are independently disposed in the large liquid hydrogen total vessel or are disposed in combination.
5. A large liquid hydrogen full tank using liquid gas cooled wall according to claim 1, wherein said tank bottom insulating brick (7) is at least one of foam glass brick, prefabricated glass fiber reinforced plastic block and prefabricated load-bearing polyurethane foam block.
6. A large liquid hydrogen total tank employing a liquid gas cooled wall according to claim 1, wherein said inner tank (6) is at least one of stainless steel plate, invar plate or aluminum alloy plate.
7. The large-scale liquid hydrogen full tank adopting the liquid-gas cooled wall according to claim 1, wherein the suspended ceiling (11) adopts at least one of a stainless steel plate, a 9% nickel steel plate, a invar steel plate or an aluminum alloy plate, the suspended ceiling (11) is suspended and fixed below the tank top (8) through a suspender (9), and a suspended ceiling insulator (10) is paved above the suspended ceiling (11).
8. A large liquid hydrogen total tank employing liquid gas cooled walls according to claim 1, wherein said suspended ceiling insulation (10) is at least one of glass wool, aerogel, high vacuum insulation panels or polyurethane foam panels.
CN202210167186.4A 2022-02-23 2022-02-23 Large-sized liquid hydrogen full-capacity tank adopting liquid-gas cooled wall Active CN114458945B (en)

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CN202210167186.4A CN114458945B (en) 2022-02-23 2022-02-23 Large-sized liquid hydrogen full-capacity tank adopting liquid-gas cooled wall

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Application Number Priority Date Filing Date Title
CN202210167186.4A CN114458945B (en) 2022-02-23 2022-02-23 Large-sized liquid hydrogen full-capacity tank adopting liquid-gas cooled wall

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CN114458945A CN114458945A (en) 2022-05-10
CN114458945B true CN114458945B (en) 2024-01-26

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CN115046128A (en) * 2022-05-30 2022-09-13 中海石油气电集团有限责任公司 Spherical liquid hydrogen storage tank

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EP0454880A1 (en) * 1990-05-02 1991-11-06 Tractebel Gas Engineering GmbH Process related to a storage tank, insulated against cold, for liquefied gas, and storage tank for carrying out the process
JPH08121695A (en) * 1994-10-20 1996-05-17 Ishikawajima Harima Heavy Ind Co Ltd Low temperature double-shell tank
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