Device for fire test of liquid hydrogen cylinder
A technology for hydrogen cylinders and gas cylinders is applied in the field of evaluating the safety performance of liquid hydrogen cylinders, which can solve the problems of lack of product performance testing and quality evaluation of liquid hydrogen storage and transportation equipment, and achieve the effect of obvious practical value.
Pending Publication Date: 2021-05-11
BEIJING INST OF AEROSPACE TESTING TECH
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Problems solved by technology
[0003] The United Nations issued UN GTR13 "Global Technical Regulations on Hydrogen and Fuel Cell Vehicles" in 2013, which proposed basic performance verification tests, performance verification tests, and end-of-use conditions verification tests for vehicle liquid hydrogen storage systems. At present, my country still lacks liquid hydrogen storage systems. The relevant national standards for performance testing and quality evaluation of hydrogen storage and transportation equipment products, the research results refer to GTR13, combined with the actual situation in my country, design the corresponding test system, and provide test data for the formulation of national standards for fire tests in the future
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specific Embodiment example 1
[0011] Specific implementation case 1: the following combination of technical solutions and attached figure 1 , to describe the implementation examples of the present invention in detail.
[0012] Fill the test medium liquid hydrogen into the gas cylinder to be tested, then turn on the gas, and control the local combustion and overall combustion modes by controlling the switch position of the valve system. Turn on the ignition control system, ignite the fuel to form a fire source, and burn and heat the test cylinder. Adjust the opening of the gas through the valve to realize the effective adjustment of the size of the fire source. Through the measurement and monitoring system, real-time monitoring of the temperature of the area near the outer wall of the gas cylinder, monitoring of thermal response parameters such as gas phase pressure during the combustion process, mastering the combustion process of the test liquid hydrogen cylinder, and making timely judgments and handling...
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The invention belongs to the technical field of safety detection of hydrogen fuel cell automobiles, relates to the safety detection of liquid hydrogen cylinders, and provides a method for checking the safety performance of the liquid hydrogen cylinders under the conditions of local fire and overall fire. The invention discloses a device for a fire test of the liquid hydrogen cylinder, and the device comprises a burning system (1), a valve control system (2), a valve system (3), a blow-off replacement gas source (4), a cylinder valve protection shell (5), a data acquisition system (6), a burning cylinder system (7), a pressure monitoring system (8) and a temperature monitoring system (9). According to the invention, liquid hydrogen is filled in the hydrogen storage cylinder on site, local fire and overall fire can be tested, meanwhile, the measurement and control system realizes the real-time monitoring and recording of parameters, such as system temperature and pressure, etc., the remote control can be carried out, the fire test with liquid hydrogen as a medium is realized, and the device has obvious practical value.
Description
technical field [0001] The invention belongs to the technical field of safety detection of hydrogen fuel cell vehicles, relates to the safety detection of liquid hydrogen bottles, and is a method for evaluating the safety performance of liquid hydrogen bottles under the conditions of partial fire and overall fire. Background technique [0002] The liquid hydrogen cylinder fire test is an important type test content of liquefied hydrogen storage and transportation equipment. The result is an important basis for judging whether the vehicle-mounted liquid hydrogen storage container is qualified. [0003] The United Nations issued UN GTR13 "Global Technical Regulations on Hydrogen and Fuel Cell Vehicles" in 2013, which proposed basic performance verification tests, performance verification tests, and end-of-use conditions verification tests for vehicle liquid hydrogen storage systems. At present, my country still lacks liquid hydrogen storage systems. The relevant national stand...
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Login to View More IPC IPC(8): G01M99/00
CPCG01M99/002
Inventor 陈静杨思锋时云卿申娟赵康张震魏金莹安刚
Owner BEIJING INST OF AEROSPACE TESTING TECH