Pressure release valve inspection method

Abstract

The invention discloses a pressure release valve detection method. According to the method, a mixing ratio of hydrogen to oxygen in a mixed gas detonation tank can be accurately controlled through anoxygen electromagnetic valve, a hydrogen electromagnetic valve, a first flowmeter and a second flow meter, so that the accuracy and the scientificity of inspection are effectively improved, and meanwhile, a system can conveniently record an inspection result through data; the capacity of the mixed gas can be accurately controlled under the action of a control panel, the hydrogen and the oxygen areeffectively saved under a condition that the inspection result is not affected, the inspection cost is reduced, and environmental conservation is achieved; and the data can be displayed convenientlythrough a display screen, and operation and control adjustment can be conveniently carried out through keys.

Description

technical field [0001] The invention relates to the technical field of pressure relief valve detection, and in particular provides a pressure relief valve inspection method. Background technique [0002] Pressure release valve is also known as ash storehouse release valve or ash storehouse vacuum release valve. Arranged on the top of the ash storage, it protects the ash storage from excessive positive and negative pressure when the ash storage is overpressured by air intake, exhaust and abnormal temperature changes; the pressure and vacuum release valve is installed on the top of the ash storage ;When the back pressure of the ash silo is too high or the negative pressure is too high, it can act in time to adjust the working pressure of the dry ash silo within the normal range, so that the ash silo does not bear excessive positive or negative pressure, thus ensuring the safety of the ash silo , the valve is characterized by reliable action, tight sealing and long service lif...

AI Technical Summary

Problems solved by technology

[0003] At present, some of the existing inspection methods for pressure relief valves use cylinders and air pressure for detection. During the detection, the pressure is released slowly, resulting in large deviations in the detection results. Some use sealed tanks and combustible gases for detection, but Due to the lack of accurate measuring devices, the test results have large deviations

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