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Saving type valve low temperature test system

A low-temperature test and test system technology, applied in the direction of applying stable tension/pressure to test the strength of materials, measuring the acceleration and deceleration rates of fluids, lighting and heating equipment, etc., can solve the problem of increasing the risk of accidents for test personnel and manual intervention. and other problems, to achieve the effect of good thermal insulation effect, reducing test cost and increasing manufacturing cost

Active Publication Date: 2011-01-26
HEFEI GENERAL ENVIRONMENT CONTROL TECH
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AI Technical Summary

Problems solved by technology

However, in the existing system, there are too many manual intervention links in the entire test process, which greatly increases the risk of accidents for test personnel.

Method used

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  • Saving type valve low temperature test system
  • Saving type valve low temperature test system
  • Saving type valve low temperature test system

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Embodiment Construction

[0027] The present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0028] Cryogenic valve parts whose working temperature is lower than -100°C need cryogenic treatment before finishing, so that the metal phase transformation and deformation of the parts can fully occur. After cryogenically treated components are assembled into finished valves, a low temperature test in a low temperature environment is required to test the sealing and operating performance of the whole machine. Therefore, the present invention is described by taking cryogenic valve parts cryogenic treatment and low temperature test as implementation cases.

[0029] refer to figure 1 , the low-temperature environment unit in the present invention, its low-temperature storage...

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Abstract

The invention relates to a valve low temperature test system, in particular to a saving type valve low temperature test system capable of carrying out both cryogenic treatment on parts and valve low temperature test. The valve system comprises a low temperature environment unit and a test environment unit, wherein the low temperature environment unit is used for carrying out the cryogenic treatment on a valve to be tested, and the test environment unit provides gas for the valve to be tested; and the valve system further comprises a process monitoring unit for monitoring the test process. Theinvention can carry out both the cryogenic treatment on the parts and the valve low temperature test; in addition, the invention reduces the wastage of liquid nitrogen and helium and the accident risk of testers, and greatly reduces the manufacturing and testing costs of the system.

Description

technical field [0001] The invention relates to a valve low-temperature test system, in particular to an economical valve low-temperature test system capable of both cryogenic treatment of components and low-temperature test of valves. Background technique [0002] With the development of liquefied natural gas, ethylene petrochemical and other industries, the application fields of cryogenic valves are becoming more and more extensive, and the market demand is also increasing year by year. In the production process of cryogenic valves, for cryogenic valves whose working temperature is lower than -100°C, the main parts of them should be subjected to cryogenic treatment before finishing, in order to reduce the deformation caused by temperature difference and metallographic structure change. At the same time, in the process of product inspection of cryogenic valves, it is also necessary to conduct valve performance tests under low temperature conditions. However, there are too ...

Claims

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Application Information

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IPC IPC(8): G01N3/18G01M3/26F25D3/10
Inventor 朱绍源郭怀舟吴怀昆
Owner HEFEI GENERAL ENVIRONMENT CONTROL TECH
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