Test platform for verifying static pressure life of stop valve through fluid detection

Abstract

The invention relates to the technical field of stop valve static pressure life testing, in particular to a test platform for verifying the static pressure life of a stop valve through fluid detection, the test platform comprises a booster pump, a water tank, a flowmeter, a pool and a circulation pipeline, the circulation pipeline sequentially connects the booster pump, the water tank, the flowmeter, a valve to be tested and the pool in series, and an inlet of the booster pump is connected into the pool. The test platform further comprises a water tank pressure gauge, a valve front and rear pressure gauge, a valve front and rear pressure regulating valve and a pressure release valve, the water tank pressure gauge is arranged on the circulation pipeline at the outlet of the water tank, the valve front pressure gauge and the pressure regulating valve are arranged on the circulation pipeline at the inlet of the valve to be tested, and the valve rear pressure gauge and the pressure regulating valve are arranged on the circulation pipeline at the outlet of the valve to be tested. And the pressure release valve leads to the tail end of the pool at the circulating pipeline. A flow meter is directly arranged on a circulating pipeline to detect whether the valve to be detected has trace leakage or not in a fully-closed state so as to timely obtain the static pressure service life of the valve.

Description

technical field [0001] The invention relates to the technical field of static pressure life testing of stop valves, in particular to a test platform for verifying the static pressure life of stop valves through fluid detection. Background technique [0002] Valves are very commonly used components in industrial systems, and the reliability of their execution is directly related to the effective operation of industrial systems. Globe valves generally refer to valves that can cut off fluid movement, and this type of valve accounts for a large proportion of all valves used. [0003] Among the many parameters of the stop valve, the static pressure life refers to the number of times that the valve can be opened and closed periodically to maintain reliable sealing and operability when the valve is subjected to medium pressure under the test bench conditions. After a certain number of times, the seal performance of the valve deteriorates and is no longer reliable. [0004] In the...

AI Technical Summary

Problems solved by technology

[0003] Among the many parameters of the stop valve, the static pressure life refers to the number of times that the valve can be opened and closed periodically to maintain reliable sealing and operability when the valve is subjected to medium pressure under the test bench conditions. After a certain number of times, the seal performance of the valve decreases and is no longer reliable

[0004] In the prior art, after a certain number of opening and closing actions are generally carried out, the valve is removed from the test pipeline for a sealing test. Before the sealing test fails, there are several excessive opening and closing actions, which cannot be fully accurate. In addition, the leakage of valves is often small, and it is difficult for ordinary flow meters or sealing test devices to judge the situation of small leakage. Too high, the test requirements are not strict directly determines that the valve series is not suitable for high-precision occasions, which restricts the valve industry to improve quality

Images