Test system capable of setting pressure maintaining time for high-pressure gas sealing detection

Abstract

The invention discloses a test system capable of setting pressure maintaining time for high-pressure gas sealing detection. The system comprises a high-pressure cylinder with a cylinder cover, a sealing piece to be tested is arranged between the outer side wall of the cylinder cover and the inner side wall of the high-pressure cylinder, and an open hole is formed in the bottom of the high-pressurecylinder and connected with a pressure gauge. A first hydrogen inlet is communicated with the open hole, a pressurization processing module used for hydrogen pressurization is arranged on a communicating pipeline, a first unloading opening is communicated with the open hole, and a pressure maintaining and unloading module used for setting system pressure maintaining time is arranged on the communicating pipeline. According to the invention, an air source becomes a control medium and gas for compression through a pneumatic control path, and the reciprocating motion of the piston rod is realized through the pressurization control system, so that the reliable and safe pressurization processing module is constructed to realize the real simulation of the service condition of the high-pressurehydrogen environment; based on the volume-adjustable air capacity, the setting of the system pressure maintaining time in the high-pressure hydrogen environment is achieved through the pneumatic control path so as to obtain the relation among the sealing performance of the sealing piece to be tested, the macro / micro performance of the material and the high-pressure hydrogen soaking 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...

AI Technical Summary

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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