Pressure test and airtight test method of pressed equipment and pressure pipeline system

Abstract

The invention discloses a pressure test and airtight test method of pressed equipment and a pressure pipeline system. The method comprises the steps that air or inactive gas is regarded as a gas source of the pressure pipeline system to input inside all pressure pipelines, pressure-bearing capacity and air tightness of the equipment pipelines connected with a main system and sealing points of a root meter are tested to achieve integrated air tightness test, a nitrogen cylinder with a pressure gage is adopted to conduct off-line test to meter sealing points behind roots of all the points to determine the air tightness of all the dispersion points and achieve the distribution air tightness test. The nitrogen is used as the air source of the pressure test of the pressure pipeline system and complete test of the whole system is finished without driving a car. The method is high in security and fast in test speed. The test of the whole system is finished just in three days. The method is good in test accuracy and is particularly suitable for a new factory without support of an old factory and without enough air sources to conduct air tightness test.

Description

technical field [0001] The invention relates to the technical field of pressure equipment and pressure pipeline detection, in particular to a method for pressure testing and airtightness testing of pressure equipment and pressure pipeline systems. Background technique [0002] At present, in many productions, it is necessary to transport pressurized gas for production, which requires the use of pressurized equipment and pressure piping systems, such as the production of synthetic ammonia. The current air tightness testing of pressure equipment and pressure piping systems is mainly carried out after the system is started up, and the time to complete a test is about 30 days. Such a detection method is time-consuming, extremely expensive, and there are detection dead spots, so the detection effect is not ideal. In the process of implementing the inspection, once a problem is found, it will often cause a sudden burst or even a fire, which will bring huge disturbance to the prod...

AI Technical Summary

Problems solved by technology

Such a detection method is time-consuming, extremely expensive, and there are dead spots in the detection, so the detection effect is not ideal

In the process of implementing the inspection, once a problem is found, it will often cause a sudden burst or even a fire, which will bring huge interference to the production and seriously affect the production efficiency

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