CN114136566B - System and method for testing shaking of container in cryogenic high-pressure environment - Google Patents
System and method for testing shaking of container in cryogenic high-pressure environment Download PDFInfo
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- CN114136566B CN114136566B CN202111431078.5A CN202111431078A CN114136566B CN 114136566 B CN114136566 B CN 114136566B CN 202111431078 A CN202111431078 A CN 202111431078A CN 114136566 B CN114136566 B CN 114136566B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/025—Measuring arrangements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/027—Specimen mounting arrangements, e.g. table head adapters
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- 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
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Abstract
The invention discloses a system for testing shaking in a cryogenic high-pressure environment, which comprises an air cylinder device for providing shaking, wherein the air cylinder device is connected with an air cylinder air inlet control system, and the air cylinder air inlet control system comprises a high-pressure buffer air cylinder, a high-pressure regulating valve, a pressure sensor and a high-pressure stop valve which are sequentially connected; the heat exchange device is used for refrigerating high-pressure gas and is connected with the high-pressure gas supply system and the low-temperature fluid supply system; the vacuum chamber is used for placing a piece to be tested and is connected with the high-pressure gas supply system and the low-temperature fluid supply system; the high-pressure gas supply system comprises a low-pressure gas cylinder, a low-pressure stop valve, a supercharger, a high-pressure stop valve, a water cooler, a high-pressure buffer gas cylinder, a heat exchanger, a low-temperature high-pressure regulating valve, a pressure temperature sensor and a low-temperature high-pressure stop valve which are connected in sequence, and gas is connected with a part to be tested through a low-temperature high-pressure hose; the low-temperature fluid supply system comprises a liquid Dewar, a temperature sensor, a low-temperature stop valve and a low-temperature throttle valve which are sequentially connected, and the low-temperature fluid is connected with the to-be-detected piece through a low-temperature hose. The invention can form a low-temperature and high-pressure composite environment and can meet the shaking test of mixing of liquid phase, gas phase and gas-liquid phase.
Description
Technical Field
The invention relates to the technical field of cryogenic high-pressure testing, in particular to a container shaking testing system under a cryogenic high-pressure environment.
Background
Hydrogen energy has become an important choice for solving energy and environmental problems in all countries in the world as clean energy, wherein the hydrogen storage efficiency of terminal equipment becomes the key to large-scale utilization of hydrogen energy in the fields of transportation and energy. The cryogenic high-pressure hydrogen storage technology integrates high-pressure gaseous hydrogen storage technology and low-temperature liquid hydrogen storage technology, has the advantages of liquid hydrogen storage and high-pressure gaseous hydrogen storage, can be filled with liquid hydrogen, and can also be filled with gaseous hydrogen at different temperatures and pressures, along with the large-scale application of hydrogen energy, the storage and transportation environment is increasingly complex, especially the liquid hydrogen shaking in the transportation process and the evaporation gas diffusion in the complex environment exceed the heat and mass transfer mechanism of liquid hydrogen and evaporation gas in the dynamic environment explored by the traditional thermodynamic theory, and extreme environments formed by the combined action of low temperature and high pressure have extremely high performance requirements on parts such as containers, pipelines, control valves and the like, so that a special shaking test platform in the low-temperature and high-pressure environment needs to be designed, shaking scenes in different working conditions of storage and transportation are simulated, and experimental support is provided for the shaking prevention design and optimization of multi-scene cryogenic high-pressure hydrogen storage tanks.
Disclosure of Invention
The purpose of the invention is as follows: in order to meet the shaking test requirements under different storage and transportation working conditions, the invention provides a shaking test system under a cryogenic high-pressure environment.
The technical scheme is as follows: in order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a test system for shaking of a container under a cryogenic high-pressure environment is characterized by comprising:
the vacuum chamber is used for providing a vacuum test environment;
the air cylinder device is arranged in the vacuum cabin and used for fixing the piece to be detected and enabling the piece to be detected to shake;
the air inlet control system of the air cylinder is connected with the air cylinder device and used for controlling the air cylinder device to shake;
the high-pressure gas supply system is connected with the piece to be detected and used for inputting high-pressure gas to the piece to be detected;
the low-temperature fluid supply system is connected with the piece to be detected and is used for inputting low-temperature liquid into the piece to be detected;
a sensor system for acquiring data comprising: the pressure and temperature of the vacuum chamber; and under the shaking state of the piece to be measured, the temperature and the pressure on the gas supply pipeline of the high-pressure gas supply system and the temperature on the liquid supply pipeline of the low-temperature gas supply system are measured.
Compared with the prior art, the invention has the following effects: the high-pressure gas supply system and the low-temperature fluid supply system designed by the invention can form a deep-cold high-pressure composite test environment and can simultaneously meet the shaking test of gas phase, liquid phase and gas-liquid phase; the air cylinder device and the control system thereof are designed to provide different shaking frequencies, simulate shaking scenes under different storage and transportation working conditions, and provide experimental support for the anti-shaking design and optimization of the multi-scene cryogenic high-pressure hydrogen storage tank.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
The invention will be further explained with reference to the drawings.
The system for testing the shaking in the cryogenic high-pressure environment as shown in fig. 1 comprises a cylinder device 20 for generating the shaking, wherein the cylinder device 20 is connected with a cylinder air inlet control system, the cylinder air inlet control system comprises a high-pressure buffer air cylinder 12, a high-pressure regulating valve 13, a pressure sensor 14 and a high-pressure stop valve 17 which are sequentially connected, and the high-pressure stop valve 17 is connected with a vacuum chamber 24 through a high-pressure air inlet pipeline. The piece to be tested 26 is fixed on the cylinder device 20 and is placed in a vacuum chamber 24, and the vacuum chamber 24 is connected with a high-pressure gas supply system and a low-temperature fluid supply system; the high-pressure gas supply system comprises a low-pressure gas cylinder 29, a low-pressure stop valve 31, a supercharger 2, a high-pressure stop valve 3, a water-cooling machine 5, a high-pressure buffer gas cylinder 12, a low-temperature high-pressure regulating valve 10, a pressure temperature sensor 9 and a low-temperature high-pressure stop valve 15 which are connected in sequence, and the gas is connected with a piece to be measured 26 through a low-temperature high-pressure hose 30; the low-temperature fluid supply system comprises a liquid Dewar 1, a temperature sensor 4, a low-temperature stop valve 6 and a low-temperature throttle valve 8 which are connected in sequence, and the low-temperature fluid is connected with a to-be-measured part 26 through a low-temperature hose 25. The high-pressure gas supply system and the low-temperature fluid supply system are also connected with a heat exchange device 11 for high-pressure gas refrigeration. The heat exchange device 11 comprises a low-temperature throttle valve 7, a low-temperature stop valve 6, a temperature sensor 4 and a liquid Dewar 1 which are connected in sequence. The high-pressure gas supply system is also connected with a tail gas discharge system. The tail gas discharge system comprises a high-pressure stop valve 16 and a tail gas storage device 18 which are connected in sequence. The vacuum chamber 24 is connected with the detachably connected seal head 19, and the top of the vacuum chamber 24 is provided with a pressure sensor 27 and a temperature sensor 28. The bottom of the vacuum chamber 24 is provided with a pressure relief valve 23 and a vacuum pumping valve 22. A low-pressure stop valve 21 is arranged between the vacuum-pumping valve 22 and the vacuum chamber 24.
Single liquid phase: the evacuation valve 22 is opened and the pressure sensor 27 reads down to 10 -3 After Pa, the low-temperature fluid supply system is opened, the high-pressure gas supply system is closed, and the low-temperature fluid flows into the piece to be measured 26 through the low-temperature hose 25. After filling, the low-temperature throttle valve 8 is closed, the cylinder device 20 is started, the piece 26 to be tested can be subjected to shaking test, the high-pressure regulating valve 13 is regulated, and the shaking frequency can be controlled. After the test is completed, the fluid in the device under test 26 flows into the exhaust storage device 18 through the exhaust emission system.
One gas in onePhase (1): the evacuation valve 22 is opened and the pressure sensor 27 reads down to 10 -3 And after Pa, opening a high-pressure gas supply system, opening a low-temperature fluid supply system, closing a low-temperature throttling valve 8, opening a low-temperature throttling valve 7, enabling high-pressure gas to pass through a heat exchange device 11 to obtain high-pressure copious cryogenic gas, enabling the high-pressure cryogenic gas to flow into a piece to be detected 26 through a low-temperature high-pressure hose 30, and monitoring parameters of the high-pressure copious cryogenic gas from a temperature and pressure sensor 9. After the filling is finished, the high-pressure stop valve 15 is closed, the air cylinder device 20 is started, the shaking test can be performed on the piece to be tested 26, the high-pressure regulating valve 13 is adjusted, the shaking frequency can be controlled, and after the test is finished, the fluid in the piece to be tested 26 flows into the tail gas storage device 18 through the tail gas discharge system.
Gas-liquid two-phase: the evacuation valve 22 is opened and the pressure sensor 27 reading drops to 10 -3 After Pa, a low-temperature fluid supply system and a high-pressure gas supply system are sequentially opened, low-temperature fluid flows into the to-be-tested piece 26 through the low-temperature hose 25, high-pressure gas flows into the to-be-tested piece 26 through the low-temperature high-pressure hose 30, and a deep-cold high-pressure environment is generated inside the to-be-tested piece 26 and is in a gas-liquid two-phase state. After the filling is finished, the low-temperature throttle valve 8 and the high-pressure stop valve 15 are closed in sequence, and after the test is finished, the fluid in the piece to be tested 26 flows into the tail gas storage device 18 through the tail gas discharge system.
The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention, and such modifications and adaptations are intended to be within the scope of the invention.
Claims (3)
1. A test system is rocked to container under cryogenic high-pressure environment, its characterized in that includes:
the vacuum chamber is used for providing a vacuum test environment;
the cylinder device (20) is arranged in the vacuum chamber and used for fixing the piece to be measured (26) and enabling the piece to be measured (26) to shake;
the cylinder air inlet control system is connected with the cylinder device (20) and is used for controlling the cylinder device (20) to shake;
the high-pressure gas supply system is connected with the piece to be detected (26) and is used for inputting high-pressure gas to the piece to be detected (26);
the low-temperature fluid supply system is connected with the piece to be tested (26) and is used for inputting low-temperature fluid into the piece to be tested (26);
a sensor system for acquiring data comprising: the pressure and temperature of the vacuum chamber; when the piece to be measured (26) is in a shaking state, the temperature and the pressure on a high-pressure gas supply system liquid supply pipeline and the temperature on a low-temperature fluid supply system liquid supply pipeline are controlled;
the container shaking test system under the cryogenic high-pressure environment further comprises a heat exchange device (11), wherein the heat exchange device (11) is connected to the high-pressure gas supply system and the low-temperature fluid supply system and is used for refrigerating high-pressure gas supplied by the high-pressure gas supply system through low-temperature liquid of the low-temperature fluid supply system; the cylinder air inlet control system comprises a high-pressure buffer air bottle (12), a high-pressure regulating valve (13), a high-pressure stop valve (17) and a high-pressure air inlet pipeline which are connected in sequence, wherein the high-pressure stop valve (17) is connected with a vacuum chamber (24) through the high-pressure air inlet pipeline; starting the air cylinder device (20), performing shaking test on the to-be-tested piece (26), testing the internal pressure, temperature and fluid evaporation rate of the container under different shaking working conditions, and adjusting the high-pressure regulating valve (13) to control the shaking frequency;
the high-pressure gas supply system comprises a low-pressure gas cylinder (29), a low-pressure stop valve (31), a supercharger (2), a high-pressure stop valve (3), a water cooling machine (5), a high-pressure buffer gas cylinder (12), a low-temperature high-pressure regulating valve (10), a low-temperature high-pressure stop valve (15) and a low-temperature high-pressure hose (30) which are sequentially connected, and high-pressure gas is connected with a to-be-tested piece (26) through the low-temperature high-pressure hose (30);
the low-temperature fluid supply system comprises a liquid Dewar (1), a low-temperature stop valve (6), a low-temperature throttle valve (8) and a low-temperature hose (25) which are sequentially connected, wherein the low-temperature fluid is connected with a to-be-detected piece (26) through the low-temperature hose (25);
the cylinder air inlet control system comprises a high-pressure buffer air bottle (12), a high-pressure regulating valve (13), a high-pressure stop valve (17) and a high-pressure air inlet pipeline which are sequentially connected, wherein the high-pressure stop valve (17) is connected with a vacuum chamber (24) through the high-pressure air inlet pipeline;
the container shaking test system under the cryogenic high-pressure environment further comprises:
the tail gas discharge system is used for discharging fluid in the piece to be detected (26), and comprises a high-pressure stop valve (16) and a tail gas storage device (18) which are sequentially connected;
the heat exchange device (11) comprises a low-temperature throttle valve (7), a low-temperature stop valve (6), a temperature sensor (4) and a liquid Dewar (1) which are connected in sequence;
the vacuum chamber (24) is connected with the detachable seal head (19), the bottom of the vacuum chamber (24) is provided with a pressure release valve (23) and a vacuum pumping valve (22), and a low-pressure stop valve (21) is arranged between the vacuum pumping valve (22) and the vacuum chamber (24).
2. The system for testing sloshing of a container under a cryogenic high-pressure environment according to claim 1, wherein: the sensor system includes:
the first pressure sensor is arranged on the air inlet control system of the cylinder;
the second pressure sensor is arranged at the top of the vacuum chamber;
a pressure and temperature sensor (9) provided in the high-pressure gas supply system;
the first temperature sensor is arranged on the low-temperature fluid supply system and the heat exchange device;
and the second temperature sensor is arranged at the top of the vacuum chamber.
3. A method for testing a system for testing the sloshing of a container in a cryogenic high-pressure environment according to claim 1 or 2, comprising:
single liquid phase: opening a vacuum pumping valve (22), opening a low-temperature fluid supply system after the reading of a pressure sensor (27) is reduced to a set air pressure, closing a high-pressure gas supply system, and enabling the low-temperature fluid to flow into a to-be-detected piece (26) through a low-temperature hose (25); after filling, closing the low-temperature throttle valve (8), starting the air cylinder device (20), performing shaking test on the piece to be tested (26), testing the internal pressure, temperature and fluid evaporation rate of the container under different shaking working conditions, adjusting the high-pressure regulating valve (13), and controlling the shaking frequency; after the test is finished, the fluid in the piece to be tested (26) flows into the tail gas storage device (18) through the tail gas exhaust system;
single gas phase: opening a vacuum pumping valve (22), opening a high-pressure gas supply system after the reading of a pressure sensor (27) is reduced to a set air pressure, opening a low-temperature fluid supply system, closing a low-temperature throttling valve (8), opening a low-temperature throttling valve (7), obtaining a deep-cooling high-pressure gas by the high-pressure gas through a heat exchange device (11), flowing into a piece to be detected 26 through a low-temperature high-pressure hose (30), and monitoring parameters of the deep-cooling high-pressure gas from a temperature pressure sensor (9); after the filling is finished, the high-pressure stop valve (15) is closed, the air cylinder device (20) is started, the piece to be tested (26) can be subjected to shaking test, the high-pressure regulating valve (13) is regulated, and the shaking frequency can be controlled; after the test is finished, the fluid in the piece to be tested (26) flows into the tail gas storage device (18) through the tail gas exhaust system;
gas-liquid two-phase: opening a vacuum pumping valve (22), after the reading of a pressure sensor (27) is reduced to a set air pressure, sequentially opening a low-temperature fluid supply system and a high-pressure gas supply system, wherein the low-temperature fluid flows into a piece to be measured (26) through a low-temperature hose (25), the high-pressure gas flows into the piece to be measured (26) through a low-temperature high-pressure hose (30), and a cryogenic high-pressure environment is generated inside the piece to be measured (26) and is in a gas-liquid two-phase state; and after the filling is finished, the low-temperature throttle valve (8) and the high-pressure stop valve (15) are closed in sequence, and after the testing is finished, the fluid in the piece to be tested (26) flows into the tail gas storage device (18) through the tail gas discharge system.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111431078.5A CN114136566B (en) | 2021-11-29 | 2021-11-29 | System and method for testing shaking of container in cryogenic high-pressure environment |
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| CN202111431078.5A CN114136566B (en) | 2021-11-29 | 2021-11-29 | System and method for testing shaking of container in cryogenic high-pressure environment |
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| CN114136566A CN114136566A (en) | 2022-03-04 |
| CN114136566B true CN114136566B (en) | 2023-03-28 |
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| CN106840911B (en) * | 2017-01-05 | 2019-12-24 | 中国石油大学(华东) | Liquid nitrogen temperature and pressure control freeze-thaw damage shale experimental device and method |
| CN207081255U (en) * | 2017-07-21 | 2018-03-09 | 中国科学院理化技术研究所 | A kind of cryogenic treatment apparatus |
| CN109612700B (en) * | 2018-12-11 | 2021-03-19 | 东南大学 | Component performance test system under cryogenic high-pressure environment |
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