A test platform for verifying the static pressure life of globe valves through fluid detection

Abstract

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. The test platform includes a booster pump, a water tank, a flow meter, a water pool, a circulation pipeline, and a circulation pipeline The booster pump, the water tank, the flowmeter, the valve to be tested, and the pool are connected in series in sequence, and the inlet of the booster pump is connected to the pool. The test platform also includes water tank pressure gauge, pressure gauge before and after the valve, pressure regulating valve before and after the valve, and pressure relief valve. On the circulation pipeline at the position, the pressure gauge and pressure regulating valve behind the valve are set on the circulation pipeline at the outlet of the valve to be tested, and the pressure relief valve is at the end of the circulation pipeline leading to the pool. A flow meter is directly installed on the circulation pipeline to detect whether a small amount of leakage occurs in the fully closed state of the valve to be tested, so as to obtain the static pressure life of the valve in time.

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...

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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

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