Sealing performance test experiment device under controllable temperature and high pressure gas

Abstract

The invention discloses a sealing ring sealing performance test experiment device under controllable temperature and high pressure hydrogen, which comprises a leak detecting port, a sealing end cover,an experiment box body, a threaded pipeline interface, a heat exchange medium inlet, a heat exchange medium outlet, a test sealing ring, a hydrogen sensor, an outer seal, a cooling / heating shell anda cooling / heating cylinder, wherein the experiment box body is fixed on a working table; the sealing end cover and the experiment box body are fixedly connected; the gas cavity of the experiment box body is U-shaped; cooling and heating media are circulated through inner / outer medium tanks to realize temperature control in the experiment box; and the waist part of the box body is provided with a pressure-controlled pressure-stabilized pipe interface connected with an external pressure-stabilized system and a safety valve, thereby ensuring the pressure in the box is stable and avoiding safety accidents due to excessive pressure inside the box.

Description

Technical field [0001] The invention belongs to the technical field of high-pressure gas sealing, and particularly relates to an experimental device for testing the sealing performance under a temperature-controlled high-pressure gas. Background technique [0002] In order to solve the problems of environmental pollution and energy consumption caused by the traditional automobile industry, the development of hydrogen energy and hydrogen fuel cell vehicles has received great attention from countries all over the world. In addition to hydrogen production, hydrogen transportation, hydrogenation, and use of hydrogen, hydrogen storage is also a major research topic in the development of hydrogen energy. At present, high-pressure gaseous hydrogen storage is the most commonly used method of hydrogen storage. However, due to the high pressure of the high-pressure hydrogen storage medium, the particularity of the hydrogen medium (flammable and explosive, and a certain influence on the pe...

AI Technical Summary

Problems solved by technology

However, the current sealing performance testing devices for sealing rings have the following deficiencies: 1. The service environment of the sealing rings for hydrogen storage containers cannot be completely simulated—either they cannot be used in a high-pressure hydrogen environment, or they cannot be tested at different temperatures; 2. , The accuracy of leakage measurement needs to be improved: it cannot be guaranteed that the leakage channel is only at the test seal

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