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A low-temperature performance test device and test method for a support heat insulation rod for low-temperature equipment

A technology for testing device and low-temperature performance, which is applied in the direction of measuring device, applying stable tension/pressure to test material strength, strength characteristics, etc. It can solve the problems of not being able to meet the requirements of performance testing and not being able to test heat leakage, etc., and achieve ingenious and reliable structure , the effect of reducing stiffness

Active Publication Date: 2019-06-07
WUHAN MARINE ELECTRIC PROPULSION RES INST CHINA SHIPBUILDING IND CORP NO 712 INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the low-temperature performance test devices provided by domestic testing machine factories are generally transformed from universal testing machines, and can only test the strength in a liquid nitrogen environment (77K), and cannot test heat leakage
For some equipment used at a temperature of 30K, the test device obviously cannot meet the performance test requirements

Method used

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  • A low-temperature performance test device and test method for a support heat insulation rod for low-temperature equipment
  • A low-temperature performance test device and test method for a support heat insulation rod for low-temperature equipment
  • A low-temperature performance test device and test method for a support heat insulation rod for low-temperature equipment

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Embodiment Construction

[0028] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0029] refer to Figure 1 to Figure 7 As shown, the present invention discloses a low-temperature performance testing device for a support heat insulation rod for low-temperature equipment, including a base 13, a vacuum container 1, an axial installation part and a radial installation part arranged in the vacuum container 1, and the vacuum The container 1 and the base 13 are fixed on the test platform.

[0030] The vacuum container 1 includes a box body 101 and a cover plate 103, a second O-ring 102 is arranged between the box body 101 and the cover plate 103, and the cover plate 103 is installed through the box body and the cover plate The bolts 104 , the box body and the cover mounting gasket 105 are fixedly connected to the box body 101 . The box body 101 includes a frame 1011, a vacuum joint 1012, an aviation socket 1013 and a refrigerator cold head sea...

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Abstract

The invention discloses a testing device for the cryogenic property of thermal-insulation support rods for cryogenic equipment. The testing device comprises a base, a vacuum container, an axial mounting assembly and a radial mounting assembly, wherein the axial mounting assembly is mainly used for providing axial tension; the radial mounting assembly is mainly used for providing a cryogenic environment; the axial mounting assembly comprises a first thermal-insulation support rod, a cold plate, a second thermal-insulation support rod, a loading pull rod and a loading device, and a one-way or three-way cryogenic strain gauge and a one-way or three-way normal-temperature strain gauge are arranged on the first thermal-insulation support rod and the second thermal-insulation support rod respectively; the radial mounting assembly comprises a thermal-insulation support seat located in the vacuum container, the cold plate, a cold bridge device and a refrigerator cold head, and a heating piece is arranged on the refrigerator cold head. The invention further discloses a testing method of the testing device. The testing device is ingenious and reliable in structure and meets the testing requirements for mechanical property and heat leakage of the thermal-insulation support rods for the cryogenic equipment, and a testing result of the testing device can provide technical support for overall design of the cryogenic equipment.

Description

technical field [0001] The invention belongs to the technical field of material performance testing, and in particular relates to a low-temperature performance testing device and a testing method for a supporting heat-insulating rod for low-temperature equipment, which is used for simulating and assessing the strength of a supporting heat-insulating rod for low-temperature equipment at low temperatures in a low-temperature vacuum environment and leak heat. Background technique [0002] For some equipment operating at deep low temperature, it is usually placed in a low-temperature environment with thermal insulation and vacuum, and it is connected with structural members at normal temperature by using support insulation rods. The supporting insulation rod is a key part of cryogenic equipment, which plays the role of heat insulation, bearing the weight of the equipment and bearing a certain load. Therefore, the requirements of strength and heat leakage should be taken into acc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/18G01N25/00
CPCG01N3/18G01N25/00G01N2203/0019G01N2203/0048G01N2203/0228
Inventor 周勇叶志刚代义军郑军
Owner WUHAN MARINE ELECTRIC PROPULSION RES INST CHINA SHIPBUILDING IND CORP NO 712 INST
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