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Valve load simulation device with movable valve rod

A technology of load simulation and driving device, applied in the direction of mechanical valve testing, etc., can solve problems such as unfavorable fast application, expensive and complex equipment, complex system, etc., and achieve the effects of shortening the verification preparation period, improving test efficiency, and low test cost

Pending Publication Date: 2022-02-08
西安长峰机电研究所
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AI Technical Summary

Problems solved by technology

[0002] The existing valve load simulation test device mainly adopts the test principle of gas simulation pressure. The pressure vessel is filled with high-pressure cold air to provide load pressure for the valve. However, pure high-pressure gas has safety problems under relatively high pressure load conditions, and every This test needs to be filled with high-pressure gas, and the test consumes a lot of energy; another method is to use an automatic load simulation platform for load simulation, but this method is complex in system and high in cost, limited by the load simulation platform, and the adjustable load range of a single load platform is limited , and the equipment is expensive and complicated when the simulation load is large, which is not conducive to rapid application

Method used

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, and the present invention includes but not limited to the following embodiments.

[0015] The invention proposes a valve stem load simulation test device. The load simulation test device is mainly composed of a pressure chamber, a hydraulic device, and a test valve stem mechanism. The upper part of the pressure chamber is an air chamber, and the lower part is a liquid chamber. The rod is installed at the top of the pressure storage chamber. When the hydraulic device is used to pressurize the pressure chamber, the air above the pressure chamber is gradually compressed as the pressure of the pressure chamber increases, but there is still a large amount of air above the pressure chamber. Gas forms a high-pressure gas chamber, and the valve stem bears high-pressure load. According to the pressure-bearing area S of the valve stem and the pressure P of the gas c...

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Abstract

The invention provides a valve load simulation device with a movablevalve rod. The simulation device comprises a pressure-bearing chamber, a hydraulic device and a pressure sensor, and is characterized in that the pressure-bearing chamber is connected with the hydraulic device and a to-be-tested test valve body, the test valve body is located above the pressure-bearing chamber, and the hydraulic device injects pressurized liquid into the pressure-bearing chamber; and a hole is formed in the gas cavity of the test valve body, a pressure sensor and a valve rod are installed in the hole, and the valve rod moves under the action of a driving device. The device is simple in structure, low in cost, high in safety and capable of achieving large-range load adjustment of the valve rod of the valve and rapidly forming the test capacity.

Description

technical field [0001] The invention relates to a valve rod load simulation test device, which is suitable for the test of simulating the larger load adjustment range of the valve rod. Background technique [0002] The existing valve load simulation test device mainly adopts the test principle of gas simulation pressure. The pressure vessel is filled with high-pressure cold air to provide load pressure for the valve. However, pure high-pressure gas has safety problems under relatively high pressure load conditions, and every This test needs to be filled with high-pressure gas, and the test consumes a lot of energy; another method is to use an automatic load simulation platform for load simulation, but this method is complex in system and high in cost, limited by the load simulation platform, and the adjustable load range of a single load platform is limited , and the equipment is expensive and complicated when the simulation load is large, which is not conducive to rapid app...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/003
CPCG01M13/003
Inventor 王亚东薛帅石文辉田明王栋王占利
Owner 西安长峰机电研究所
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