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Low temperature test device

A low-temperature test and low-temperature tank technology, which is used in the testing of measuring devices, machine/structural components, and the use of stable tension/pressure to test the strength of materials, etc. The effect of high test automation, high mechanical properties and high test accuracy

Inactive Publication Date: 2010-08-18
方存正
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

So far, there are very few manufacturers that can actually produce cryogenic valves according to the requirements, let alone cryogenic treatment equipment and testing devices for cryogenic valves

Method used

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Embodiment Construction

[0012] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

[0013] A preferred embodiment is given below:

[0014] A low-temperature test device, comprising a low-temperature tank 1, one end of the low-temperature tank 1 is connected to a liquid nitrogen storage tank 3 through a pipeline 2, and one end is connected to a nitrogen group bottle 5 through a pipeline 4, and the low-temperature tank 1 is also connected to each other through lines There are electrical control unit 6 and helium leak detector 7.

[0015] A gas source control unit 8 , a nitrogen pressure gauge 9 , a nitrogen booster pump 10 and a pressure transmitter 11 are arranged on the pipeline 4 between the cryogenic tank 1 and the nitrogen group bottle 5 .

[0016] A low-temperature test device of the present invention understands and determines the material and pre-processing process of th...

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Abstract

The invention relates to a test device for producing an ultralow temperature liquefied natural gas valve, in particular to a low temperature test device. The low temperature test device comprises a low temperature groove. One end of the low temperature groove is connected with a liquid nitrogen storage tank through a pipeline, the other end is connected with a nitrogen group bottle through a pipeline, and the low temperature groove is also respectively connected with an electric control unit and a helium leak detector through a line. compared with the prior art, the low temperature test device can obtain optimal data to enhance the mechanical property of the valve, prolong the service life of the valve, stabilize the size, improve the uniformity and reduce the deformation and has the advantages of high test accuracy, wide test range, high test automation degree and the like.

Description

technical field [0001] The invention relates to a test device for producing ultra-low temperature liquefied natural gas valves, and specifically provides a low temperature test device. Background technique [0002] The key technology of ultra-low temperature liquefied natural gas valves - cryogenic process technology, is a new technology that has emerged in recent years to improve the performance of metal workpieces. The emergence of cryogenic process technology has attracted great attention from the scientific research community and the industry. It has been applied to cutting tools, measuring tools, molds and precision parts abroad, such as oil pump nozzles, engine turbine shafts, rolls, valves, gears, The modification of workpieces such as springs and the application of cryogenic treatment technology are gradually getting the attention and development of the business community. [0003] From the 1960s to the 1970s before the introduction of foreign devices into our count...

Claims

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Application Information

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IPC IPC(8): G01M19/00G01M3/28G01N3/18G01M99/00
Inventor 方存正
Owner 方存正
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