CN103644450A - High pressure heat exchange helium gas storage tank at liquid hydrogen temperature - Google Patents

High pressure heat exchange helium gas storage tank at liquid hydrogen temperature Download PDF

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Publication number
CN103644450A
CN103644450A CN201310589492.8A CN201310589492A CN103644450A CN 103644450 A CN103644450 A CN 103644450A CN 201310589492 A CN201310589492 A CN 201310589492A CN 103644450 A CN103644450 A CN 103644450A
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China
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chamber
liquid nitrogen
heat exchange
high pressure
helium
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CN201310589492.8A
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CN103644450B (en
Inventor
邢力超
程翔
岳婷
王道连
张连万
周炎
曹文利
张宇
王恺
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China Academy of Launch Vehicle Technology CALT
Beijing Institute of Astronautical Systems Engineering
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China Academy of Launch Vehicle Technology CALT
Beijing Institute of Astronautical Systems Engineering
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30Hydrogen technology
    • Y02E60/32Hydrogen storage

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Abstract

The present invention discloses a high pressure heat exchange helium gas storage tank at a liquid hydrogen temperature. The high pressure heat exchange helium gas storage tank comprises a housing (1), a vacuum chamber (2), a liquid nitrogen pre-cooling jacket chamber (3), a high pressure chamber (4), a heat exchange pipe chamber (5), a liquid nitrogen inlet (7), a liquid nitrogen outlet (6), a high pressure helium inlet-outlet (8), a refrigerant inlet (9), a refrigerant outlet (10), a refrigerant centralization chamber (11), a refrigerant distribution chamber (12) and a vacuum pumping port (13), wherein the high pressure chamber (4) is provided for storing high pressure helium gas, a 13K refrigerant produced by a low temperature refrigeration unit is required to be introduced into the heat exchange pipe chamber (5) during cooling, cooling is performed on the high pressure helium gas in the high pressure chamber (4) through radiation and convection heat exchange, the high pressure helium gas achieves a liquid hydrogen temperature through continuous cycle cooling, and the liquid nitrogen pre-cooling jacket chamber (3) is provided for accelerating the cooling rate of the helium gas in the high pressure chamber. According to the present invention, functions of high pressure helium gas storage and heat exchange cooling on high pressure helium gas are concurrently provided, and the stored high pressure helium gas can be rapidly cooled to achieve the liquid hydrogen temperature.

Description

A kind of liquid hydrogen warm area high pressure heat exchange helium storage tank
Technical field
The present invention relates to a kind of for the cold helium supercharging experiment of liquid rocket liquid hydrogen warm area high pressure heat exchange helium storage tank.
Background technique
Fast development along with China's carrier rocket, high energy cryogenic propellant liquid hydrogen/oxygen is widely used, involved valve, pipeline and the system of rocket pressurizing transmission system all need to experience the deep cooling high pressure operating mode of liquid hydrogen warm area (20K), to pressurizing transmission system proposed more strictly, higher technical requirements.During in order to ensure rocket flight, pressurizing transmission system can normally be worked, and must manage this system to carry out under liquid hydrogen warm area sufficient simulation test examination, and the high-pressure helium that how to obtain and store liquid hydrogen warm area is particularly crucial.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of and can store high-pressure helium, and meet the object of heat exchange cooling simultaneously, make the high-pressure helium fast cooling of storage to the helium storage tank of liquid hydrogen warm area.
The present invention includes following technological scheme:
A liquid hydrogen warm area high pressure heat exchange helium storage tank, comprises that housing, vacuum chamber, Liquid nitrogen precooler chuck chamber, hyperbaric chamber, heat exchange tube chamber, liquid nitrogen entrance, liquid nitrogen outlet, high-pressure helium import and export, refrigerant inlet, refrigerant outlet, refrigeration agent gather chamber, refrigeration agent distribution chamber and vacuum orifice;
A plurality of heat exchange tube chambers are evenly arranged in hyperbaric chamber inside, and it is inner that hyperbaric chamber is positioned at Liquid nitrogen precooler chuck chamber; At Liquid nitrogen precooler chuck chamber, refrigeration agent, gathering chamber, refrigeration agent distribution chamber is vacuum chamber outward, plays heat insulating function; Outermost surface is housing; Hyperbaric chamber is used for storing high-pressure helium, the refrigeration agent that low temperature refrigerator group is produced is incorporated into refrigeration agent distribution chamber by refrigerant inlet, by refrigeration agent distribution chamber, be dispensed in a plurality of heat exchange tube chambers and carry out heat exchange, by heat exchange tube chamber, hyperbaric chamber inner high voltage helium is lowered the temperature; The refrigeration agent of heat exchange tube chamber output gathers chamber through refrigeration agent and gathers, then is exported by refrigerant outlet; Liquid nitrogen precooler chuck chamber is connected with liquid nitrogen entrance, liquid nitrogen outlet respectively, by liquid nitrogen entrance, to Liquid nitrogen precooler chuck chamber filling liquid nitrogen, by liquid nitrogen, is exported and is carried out releasing and exhaust of Liquid nitrogen precooler chuck intraluminal fluid nitrogen; Hyperbaric chamber is imported and exported and is connected with high-pressure helium, by high-pressure helium, is imported and exported to hyperbaric chamber and is filled helium or export helium from hyperbaric chamber; By vacuum orifice, make vacuum chamber keep vacuum state.
Liquid nitrogen precooler chuck chamber, refrigeration agent gather chamber and refrigeration agent distribution chamber all adopts the mode of alkali-free cloth+aluminium foil multi-lay winding to carry out thermal insulation.
Temperature-measuring port and pressure tap are set in hyperbaric chamber, for measuring the pressure and temperature of helium in hyperbaric chamber.
At refrigeration agent, gather chamber heat exchange tube chamber safety valve is set, in Liquid nitrogen precooler chuck chamber, chuck chamber safety valve is set; On the pipeline of importing and exporting at high-pressure helium, hyperbaric chamber safety valve is set, on each safety valve, rupture disc is set.
The present invention compared with prior art tool has the following advantages:
Storage tank of the present invention comprises hyperbaric chamber, heat exchange tube chamber, Liquid nitrogen precooler chamber and vacuum chamber; Hyperbaric chamber, heat exchange tube chamber and three, Liquid nitrogen precooler chamber cavity are separated from each other, not blending of medium; Hyperbaric chamber is used for storing high-pressure helium, the 13K refrigeration agent that low temperature refrigerator group need to be produced during cooling is incorporated in heat exchange tube chamber, by the hyperbaric chamber inner high voltage helium outside radiation and convection heat exchange exchange heat pipe, lower the temperature, through continuous circulation temperature lowering, make high-pressure helium reach liquid hydrogen warm area (20K); Liquid nitrogen precooler chuck chamber is for accelerating the cooling rate of helium in hyperbaric chamber, by liquid nitrogen vaporization immersion way to the helium cooling precooling in hyperbaric chamber and in chamber.In a word, storage tank of the present invention has the function that stores high-pressure helium and its heat exchange is lowered the temperature simultaneously, can make the high-pressure helium fast cooling storing to liquid hydrogen warm area.
Accompanying drawing explanation
Fig. 1 is liquid hydrogen warm area high pressure heat exchange helium storage tank schematic diagram of the present invention.
1. housing 2. vacuum chamber 3. Liquid nitrogen precooler chuck chamber 4. hyperbaric chamber 5. heat exchange tube chamber 6. liquid nitrogen export 6. liquid nitrogen entrance 8. high-pressure heliums and import and export 9. refrigerant inlet 10. refrigerant outlet 11. refrigeration agents and gather chamber 12. refrigeration agent distribution chamber 13. vacuum orifice 14. heat exchange tube chamber safety valve 15. chuck chamber safety valve 16. temperature-measuring port 17. pressure tap 18. hyperbaric chamber safety valves
Embodiment
Below just by reference to the accompanying drawings the present invention is described further.
As shown in Figure 1, liquid hydrogen warm area high pressure heat exchange helium storage tank of the present invention, comprises that housing 1, vacuum chamber 2, Liquid nitrogen precooler chuck chamber 3, hyperbaric chamber 4, heat exchange tube chamber 5, liquid nitrogen entrance 7, liquid nitrogen outlet 6, high-pressure helium import and export 8, refrigerant inlet 9, refrigerant outlet 10, refrigeration agent gather chamber 11, refrigeration agent distribution chamber 12, vacuum orifice 13, heat exchange tube chamber safety valve 14, chuck chamber safety valve 15, temperature-measuring port 16, pressure tap 17, hyperbaric chamber safety valve 18.
Heat exchange tube chamber 5 is positioned at hyperbaric chamber 4 inside, and hyperbaric chamber 4 is positioned at 3 inside, Liquid nitrogen precooler chuck chamber, and at Liquid nitrogen precooler chuck chamber 3, refrigeration agent, gathering chamber 11, refrigeration agent distribution chamber 12 and each interface pipeline is vacuum chamber 2 outward, plays heat insulating function, and outermost surface is housing 1; Hyperbaric chamber 4 is for storing high-pressure helium, the 13K refrigeration agent that low temperature refrigerator group is produced is incorporated into refrigeration agent distribution chamber 12 by refrigerant inlet 9, by distribution chamber 12, be dispensed in heat exchange tube chamber 5 and carry out heat exchange, by 5 pairs of hyperbaric chambers of heat exchange tube chamber, 4 inner high voltage helium, lower the temperature; The refrigeration agent of heat exchange tube chamber output gathers chamber 11 through refrigeration agent and gathers, then is exported by refrigerant outlet 10; Liquid nitrogen precooler chuck chamber 3 is connected with liquid nitrogen entrance 7, liquid nitrogen outlet 6 respectively, by liquid nitrogen entrance 7 to Liquid nitrogen precooler chuck chamber 3 liquid nitrogen of annotating, by liquid nitrogen, export 6 and carry out releasing and exhaust of Liquid nitrogen precooler chuck chamber 3 interior liquid nitrogen; Hyperbaric chamber 4 is imported and exported 8 with high-pressure helium and is connected, and imports and exports 8 fill helium or export helium from hyperbaric chamber 4 to hyperbaric chamber 4 by high-pressure helium; By vacuum orifice 13, make vacuum chamber 2 keep vacuum state; In interior temperature-measuring port 16 and the pressure tap 17 of arranging of hyperbaric chamber 4, for measuring the pressure and temperature of helium in hyperbaric chamber; At refrigeration agent, gather chamber 11 heat exchange tube chamber safety valve 14 is set, the interior chuck chamber safety valve 15 that arranges in Liquid nitrogen precooler chuck chamber 3; Rupture disc is set on safety valve, for the protection of storage tank safety, has eliminated relief valve and do not opened the Security accident causing.
Vacuum chamber 2 plays heat insulating function; Hyperbaric chamber 4, heat exchange tube chamber 5 and 3 three, Liquid nitrogen precooler chuck chamber cavity are separated from each other, not blending of medium.
Hyperbaric chamber 4 is used for storing high-pressure helium, the 13K refrigeration agent that low temperature refrigerator group need to be produced during cooling is incorporated in heat exchange tube chamber 5, by the hyperbaric chamber inner high voltage helium outside radiation and convection heat exchange exchange heat pipe, lower the temperature, through continuous circulation temperature lowering, make high-pressure helium reach liquid hydrogen warm area (20K).Liquid nitrogen precooler chuck chamber 3 is for accelerating the cooling rate of helium in hyperbaric chamber, and hyperbaric chamber 4 fills in helium process, in Liquid nitrogen precooler chuck chamber 3, is filled with liquid nitrogen, by liquid nitrogen vaporization immersion way to the helium cooling precooling in hyperbaric chamber 4.
Liquid nitrogen precooler chuck chamber 3 in vacuum chamber 2, refrigeration agent gather chamber 11, refrigeration agent distribution chamber 12 and each interface pipeline skin and all adopt the mode of alkali-free cloth+aluminium foil multi-lay winding to carry out thermal insulation, significantly reduce and leak heat.
In inner hyperbaric chamber 4 arranged outside Liquid nitrogen precooler chuck chambeies 3, for precooling hyperbaric chamber 4, heat exchange tube chamber 5 and the inner high-pressure helium filling.The refrigeration agent that cooling machine set transmission comes, is averagely allocated to heat exchange tube chamber 5 by refrigeration agent distribution chamber 12.Heat exchange tube chamber 5 is evenly arranged in hyperbaric chamber 4, can make like this heat exchanging tube helium temperature around distribute more even, reduces helium self the heat transfer by convection time, reaches convection heat exchange effect fast and efficiently.
The cooling temperature gradient larger (being down to liquid hydrogen warm area from normal temperature) of considering helium and storage tank, in order to reduce the cold shock of pressurized container, storage tank working procedure of the present invention is as follows:
A) first by high-pressure helium, import and export 8 and fill high-pressure helium in hyperbaric chamber 4, then pass through liquid nitrogen entrance 7 to the interior filling liquid nitrogen in Liquid nitrogen precooler chuck chamber 3, by the mode of immersing in liquid nitrogen, hyperbaric chamber 4, heat exchange tube chamber 5 and the inner high-pressure helium filling are lowered the temperature;
B) by the interior helium temperature of temperature sensor monitors hyperbaric chamber 4 of temperature-measuring port 16, when cooling to 80K, by liquid nitrogen, export 6 liquid nitrogen that release in Liquid nitrogen precooler chuck chamber 3, in order to avoid the extra refrigeration agent cold of liquid nitrogen consumption in cooling Liquid nitrogen precooler chuck chamber 3, by refrigerant inlet 9, to the heat exchange tube chamber 5 in hyperbaric chamber 4, introduce the low-temperature refrigerant of the 13K of cooling machine set generation, heat exchange tube chamber 5 is cooled to 20K liquid hydrogen warm area by the mode of convection heat exchange to the helium in hyperbaric chamber 4;
C) refrigeration agent that the temperature after heat exchange is higher flows out to cooling machine set by refrigerant outlet 10 and continues cooling, forms refrigerant circulation loop;
D) in temperature-fall period, hyperbaric chamber 4 inner high voltage helium can along with temperature reduction, pressure decreased imports and exports 8 by high-pressure helium, continues to fill helium in hyperbaric chamber 4, the pressure of helium is met the demands, by the helium pressure in the pressure sensor monitoring hyperbaric chamber 4 of pressure tap 17;
E) at refrigeration agent, gather chamber 11, Liquid nitrogen precooler chuck chamber 3 and high-pressure helium and import and export on 8 pipeline and be all provided with safety valve, its size meets storage tank safety relief amount, has guaranteed the safety relief of storage tank;
F) temperature when storage tank inner high voltage helium is reduced to liquid hydrogen warm area, and pressure meets test requirements document, can by high-pressure helium import and export 8 draw liquid hydrogen warm area high-pressure helium as test source of the gas use.The unspecified part of the present invention belongs to general knowledge as well known to those skilled in the art.

Claims (4)

1. a liquid hydrogen warm area high pressure heat exchange helium storage tank, it is characterized in that, comprise that housing (1), vacuum chamber (2), Liquid nitrogen precooler chuck chamber (3), hyperbaric chamber (4), heat exchange tube chamber (5), liquid nitrogen entrance (7), liquid nitrogen outlet (6), high-pressure helium import and export (8), refrigerant inlet (9), refrigerant outlet (10), refrigeration agent gather chamber (11), refrigeration agent distribution chamber (12) and vacuum orifice (13);
A plurality of heat exchange tube chambers (5) are evenly arranged in hyperbaric chamber (4) inside, and hyperbaric chamber (4) is positioned at inside, Liquid nitrogen precooler chuck chamber (3); Outside Liquid nitrogen precooler chuck chamber (3), refrigeration agent gather chamber (11), refrigeration agent distribution chamber (12), be vacuum chamber (2), play heat insulating function; Outermost surface is housing (1); Hyperbaric chamber (4) is for storing high-pressure helium, the refrigeration agent that low temperature refrigerator group is produced is incorporated into refrigeration agent distribution chamber (12) by refrigerant inlet (9), by refrigeration agent distribution chamber (12), be dispensed in a plurality of heat exchange tube chambers (5) and carry out heat exchange, by heat exchange tube chamber (5), hyperbaric chamber (4) inner high voltage helium is lowered the temperature; The refrigeration agent of heat exchange tube chamber (5) output gathers chamber (11) through refrigeration agent and gathers, then is exported by refrigerant outlet (10); Liquid nitrogen precooler chuck chamber (3) is connected with liquid nitrogen entrance (7), liquid nitrogen outlet (6) respectively, by liquid nitrogen entrance (7), to Liquid nitrogen precooler chuck chamber (3) filling liquid nitrogen, by liquid nitrogen, export (6) and carry out releasing and exhaust of the interior liquid nitrogen in Liquid nitrogen precooler chuck chamber (3); Hyperbaric chamber (4) is imported and exported (8) with high-pressure helium and is connected, and imports and exports (8) fill helium or export helium from hyperbaric chamber (4) to hyperbaric chamber (4) by high-pressure helium; By vacuum orifice (13), make vacuum chamber (2) keep vacuum state.
2. a kind of liquid hydrogen warm area high pressure heat exchange helium storage tank according to claim 1, it is characterized in that, Liquid nitrogen precooler chuck chamber (3), refrigeration agent gather chamber (11) and refrigeration agent distribution chamber (12) all adopts the mode of alkali-free cloth+aluminium foil multi-lay winding to carry out thermal insulation.
3. a kind of liquid hydrogen warm area high pressure heat exchange helium storage tank according to claim 1, is characterized in that, temperature-measuring port (16) and pressure tap (17) is set in hyperbaric chamber (4), for measuring the pressure and temperature of helium in hyperbaric chamber.
4. a kind of liquid hydrogen warm area high pressure heat exchange helium storage tank according to claim 1, is characterized in that, gathers chamber (11) heat exchange tube chamber safety valve (14) is set at refrigeration agent, in Liquid nitrogen precooler chuck chamber (3), chuck chamber safety valve (15) is set; On the pipeline of high-pressure helium import and export (8), hyperbaric chamber safety valve (18) is set, on each safety valve, rupture disc is set.
CN201310589492.8A 2013-11-20 2013-11-20 A kind of liquid hydrogen warm area high pressure heat exchange helium storage tank Active CN103644450B (en)

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105627638A (en) * 2015-12-29 2016-06-01 西安交通大学 Quick supercooling device for cryogenic propellant
CN105674038A (en) * 2016-02-25 2016-06-15 上海宇航系统工程研究所 Device used for storing low-temperature liquid in orbit for long time and cooling method of device
CN105973552A (en) * 2015-12-11 2016-09-28 北京强度环境研究所 Complex environment coordination loading system of vibration test of low-temperature propellant delivery line
CN106482418A (en) * 2015-08-28 2017-03-08 楚天科技股份有限公司 Freeze dryer gas/liquid nitrogen refrigeration system
CN106647855A (en) * 2016-11-03 2017-05-10 北京航天试验技术研究所 Low-temperature fluid temperature adjusting device
CN106762226A (en) * 2016-12-01 2017-05-31 中国运载火箭技术研究院 Suitable for the evaporation capacity Active Control Method of the long-term in-orbit storage of cryogenic propellant
CN109358093A (en) * 2018-11-28 2019-02-19 武汉市锅炉压力容器检验研究所 A kind of fiber-wound gas cylinder infrared thermal imaging detection system and its detection method
CN110308175A (en) * 2019-07-29 2019-10-08 中国科学院合肥物质科学研究院 The device that multilayer insulant is tested under a kind of storage of liquid helium and liquid helium region
CN110748786A (en) * 2019-11-25 2020-02-04 杭州杭氧股份有限公司 Device for industrially storing liquid hydrogen based on three-level heat-insulating layer of argon, nitrogen and normal hydrogen
CN114370598A (en) * 2022-01-17 2022-04-19 陈五亮 Liquid hydrogen/hydrogen gas storage and transportation device and use method thereof
CN114857490A (en) * 2022-07-06 2022-08-05 北京航天试验技术研究所 Liquid hydrogen container filling method for oxyhydrogen rocket engine ground test
CN115371455A (en) * 2022-07-21 2022-11-22 瑞燃(上海)环境工程技术有限公司 Heat insulation structure and heat insulation method for liquid nitrogen heat exchange equipment
CN115654357A (en) * 2022-12-08 2023-01-31 中国空气动力研究与发展中心超高速空气动力研究所 Hypersonic high-temperature wind tunnel high-pressure liquid oxygen storage tank with liquid nitrogen jacket and use method thereof
CN116520212A (en) * 2023-01-13 2023-08-01 北京航天试验技术研究所 Test system applied to high-pressure cold helium solenoid valve

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Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106482418A (en) * 2015-08-28 2017-03-08 楚天科技股份有限公司 Freeze dryer gas/liquid nitrogen refrigeration system
CN105973552A (en) * 2015-12-11 2016-09-28 北京强度环境研究所 Complex environment coordination loading system of vibration test of low-temperature propellant delivery line
CN105973552B (en) * 2015-12-11 2018-05-29 北京强度环境研究所 Combinational environment Coordinated Loading System in cryogenic propellant transfer pipeline vibration test
CN105627638A (en) * 2015-12-29 2016-06-01 西安交通大学 Quick supercooling device for cryogenic propellant
CN105627638B (en) * 2015-12-29 2017-12-26 西安交通大学 A kind of quick supercooling apparatus of cryogenic propellant
CN105674038A (en) * 2016-02-25 2016-06-15 上海宇航系统工程研究所 Device used for storing low-temperature liquid in orbit for long time and cooling method of device
CN105674038B (en) * 2016-02-25 2019-02-01 上海宇航系统工程研究所 A kind of device and its cooling means for long-term in-orbit storage cryogenic liquid
CN106647855A (en) * 2016-11-03 2017-05-10 北京航天试验技术研究所 Low-temperature fluid temperature adjusting device
CN106762226A (en) * 2016-12-01 2017-05-31 中国运载火箭技术研究院 Suitable for the evaporation capacity Active Control Method of the long-term in-orbit storage of cryogenic propellant
CN106762226B (en) * 2016-12-01 2018-05-22 中国运载火箭技术研究院 Suitable for the evaporation capacity Active Control Method of cryogenic propellant in-orbit storage for a long time
CN109358093A (en) * 2018-11-28 2019-02-19 武汉市锅炉压力容器检验研究所 A kind of fiber-wound gas cylinder infrared thermal imaging detection system and its detection method
CN109358093B (en) * 2018-11-28 2024-06-07 武汉市锅炉压力容器检验研究所 Infrared thermal imaging detection system and detection method for fiber wound gas cylinder
CN110308175A (en) * 2019-07-29 2019-10-08 中国科学院合肥物质科学研究院 The device that multilayer insulant is tested under a kind of storage of liquid helium and liquid helium region
CN110308175B (en) * 2019-07-29 2024-02-02 中国科学院合肥物质科学研究院 Device for testing multilayer heat insulation materials under liquid helium storage and liquid helium temperature zone
CN110748786A (en) * 2019-11-25 2020-02-04 杭州杭氧股份有限公司 Device for industrially storing liquid hydrogen based on three-level heat-insulating layer of argon, nitrogen and normal hydrogen
CN110748786B (en) * 2019-11-25 2023-08-11 杭氧集团股份有限公司 Industrial liquid hydrogen storage device based on argon, nitrogen and positive hydrogen three-level heat preservation
CN114370598A (en) * 2022-01-17 2022-04-19 陈五亮 Liquid hydrogen/hydrogen gas storage and transportation device and use method thereof
CN114857490A (en) * 2022-07-06 2022-08-05 北京航天试验技术研究所 Liquid hydrogen container filling method for oxyhydrogen rocket engine ground test
CN115371455A (en) * 2022-07-21 2022-11-22 瑞燃(上海)环境工程技术有限公司 Heat insulation structure and heat insulation method for liquid nitrogen heat exchange equipment
CN115654357A (en) * 2022-12-08 2023-01-31 中国空气动力研究与发展中心超高速空气动力研究所 Hypersonic high-temperature wind tunnel high-pressure liquid oxygen storage tank with liquid nitrogen jacket and use method thereof
CN116520212A (en) * 2023-01-13 2023-08-01 北京航天试验技术研究所 Test system applied to high-pressure cold helium solenoid valve
CN116520212B (en) * 2023-01-13 2023-09-08 北京航天试验技术研究所 Test system applied to high-pressure cold helium solenoid valve

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