A test system for high-pressure gas seal detection with settable holding time
A pressure-holding time and sealing detection technology, which is applied in fluid tightness testing, machine/structural component testing, and liquid-tightness measurement using liquid/vacuum degree, etc. question
Active Publication Date: 2021-07-30
TSINGHUA UNIV
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Problems solved by technology
At present, the existing test system in China is not mature enough to comprehensively realize the setting of the system pressure holding time and the detection of sealing performance in the high-pressure hydrogen environment.
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[0031] The implementation of the present invention will be described in detail below in conjunction with the drawings and examples.
[0032] Such as figure 1 As shown in the figure, a test system for high-pressure gas seal detection with a settable holding time includes a high-pressure cylinder 3 with a cylinder cover 10, the cylinder cover 10 and the high-pressure cylinder 3 are connected by a bolt connection 2, and the cylinder cover 10 A seal 11 is arranged between the top end surface and the bottom end surface of the high-pressure cylinder 3 , and the seal 9 to be tested is arranged between the outer wall of the cylinder cover 10 and the inner wall of the high-pressure cylinder 3 . The bottom of the high-pressure cylinder 3 has a hole and is connected with a pressure gauge 4. The pressure gauge 4 is used for pressure detection, pressure feedback and overpressure / underpressure alarm. The pressurization processing module 7 for hydrogen pressurization, the unloading port 5 f...
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A test system for high-pressure gas seal detection that can set the holding time, including a high-pressure cylinder with a cylinder cover, the seal to be tested is arranged between the outer wall of the cylinder cover and the inner wall of the high-pressure cylinder, and the bottom of the high-pressure cylinder A hole is opened and connected to a pressure gauge. The hydrogen gas inlet is connected to the hole and a pressurization processing module for hydrogen pressurization is arranged on the connecting pipeline. The unloading port is connected to the opening and a setting is set on the connecting pipeline. The pressure-holding and unloading module of the system pressure-holding time. In the present invention, the air source becomes the control medium and the gas for compression through the air control passage, and the reciprocating motion of the piston rod is realized through the pressurization control system, thereby constructing a reliable and safe pressurization processing module to realize the real working conditions of the high-pressure hydrogen environment. Simulation; based on the volume-adjustable gas capacity, through the gas control channel, the setting of the system pressure holding time in the high-pressure hydrogen environment is realized, so as to obtain the relationship between the sealing performance of the seal to be tested, the macro / micro performance of the material, and the high-pressure hydrogen immersion time.
Description
technical field [0001] The invention belongs to the technical field of high-pressure gas sealing, and in particular relates to a testing system for high-pressure gas sealing detection which can set a holding time. Background technique [0002] The shortage of energy resources and environmental degradation caused by excessive reliance on fossil fuels are serious and urgent problems faced by countries all over the world. Countries all over the world are actively promoting the development of clean, environmentally friendly and efficient energy. Due to its various sources, high energy conversion rate, no pollution, zero emissions, storability, and renewable advantages, hydrogen energy has become a secondary energy source with great development prospects. Using hydrogen energy as the next generation energy carrier is expected to solve the problem of energy supply. , safety and cleanliness are key issues. In view of this, all countries in the world are stepping up the planning an...
Claims
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IPC IPC(8): G01M3/32
CPCG01M3/329
Inventor 郭飞黄毅杰项冲张兆想程甘霖谭磊贾晓红王玉明
Owner TSINGHUA UNIV