Method for detecting valve air tightness through high-flow high-voltage gas source

Abstract

The invention discloses a method for detecting valve air tightness through a high-flow high-voltage gas source. A detection system in use comprises the gas source and a working gas source, the working gas source comprises a generally high pressure cylinder set and a high pressure cylinder set, and gas and gas pressurization assemblies are connected between the generally high pressure cylinder set and the high pressure cylinder set through pipes. When the required pressure of a valve to be detected is lower than that of the gas source, the valve to be detected is directly inflated with high pressure gas in the generally high pressure cylinder set and the high pressure cylinder set which are inflated by the gas source; when the required pressure of the valve to be detected is higher than that of the gas source, the valve to be detected is inflated with high pressure gas in the high pressure cylinder set after the gas is pressurized. According to the method, multiple high pressure gas cylinder sets and gas pressurization devices are arranged, the gas flow can be increased, and the detection efficiency is improved; the high-pressure gas source device pipes are made of stainless steel materials, and a check valve serves as a medium control valve; remote operation, remote monitoring, remote testing and remote recording can be achieved, and it is guaranteed that the test system is safe and reliable.

Description

technical field [0001] The valve relates to the technical field of valve detection, in particular to a large-flow high-pressure air source system for detecting the airtightness of valves. Background technique [0002] After years of development, the number of valve enterprises in China ranks first in the world. As a component of fluid transportation, with the growth of the national economy, China's petrochemical, natural gas, metallurgical, electric power, urban construction and other industries have a large demand for valves. The valve industry is developing very rapidly and has a huge market development space. . [0003] The sealing performance of the valve refers to the ability of each sealing part of the valve to prevent the leakage of the medium, which is the most important technical performance index of the valve. Leakage of the valve will result in material loss, polluting the environment, even creating serious accidents. For the explosive, toxic or perhaps radioac...

AI Technical Summary

Problems solved by technology

However, the existing high-pressure gas source device used for valve detection has a very small gas flow rate in actual use, and it takes a long time to perform valve detection experiments, and the efficiency is not high.

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