Unlock instant, AI-driven research and patent intelligence for your innovation.

Heat conduction test device for material contact interface in vacuum environment and test method thereof

A technology of contact interface and vacuum environment, applied in the direction of material thermal conductivity, material thermal development, etc., can solve the problem of less thermal data

Inactive Publication Date: 2017-06-27
CHINA SPECIAL EQUIP INSPECTION & RES INST
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, there is very little data on the thermal conductivity of the contact interface between FRP, stainless steel and carbon steel in a vacuum environment. It is urgent to build a targeted test device for systematic and in-depth research to effectively solve this problem.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Heat conduction test device for material contact interface in vacuum environment and test method thereof
  • Heat conduction test device for material contact interface in vacuum environment and test method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] Such as figure 1 , figure 2 Shown is a preferred embodiment of the material contact interface thermal conductivity test device in a vacuum environment provided by the present invention, which includes:

[0030] The outer cavity 2 is supported by universal wheels 1 below it to make it easy to move, and its side is provided with a vacuum port 6 and a vacuum test port 7;

[0031] The inner cavity 3 is closed, it is placed in the outer cavity 2, and there is an interlayer between the outer cavity 2, the inner cavity 3 is connected with a liquid feeding pipe 23 and a discharge pipe 22 for internal The cavity 3 is filled with low-temperature liquid; the upper surface of the inner cavity 3 is also recessed downward to form a groove 8, and the liquid level of the low-temperature liquid should be at least higher than the bottom of the groove 8; the groove 8 is recessed into the inner cavity 3 inside, so that the stainless steel plate at the bottom of the groove 8 can be compl...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a heat conduction test device for a material contact interface in a vacuum environment and a test method thereof. The test device comprises an outer cavity, an inner cavity and at least one heat conduction experimental group, wherein the inner cavity is in a closed shape and filled with a low temperature liquid, the inner cavity is arranged in the outer cavity and forms a vacuum interlayer, the upper surface of the inner cavity is also concave downward to form a groove, and the liquid level of the low temperature liquid is higher than the bottom of the groove; the at least one heat conduction experimental group is arranged in the groove, each heat conduction experimental group comprises a first material rod, a second material rod, a heating block and a force sensor which are sequentially connected from bottom to top, the lower end of each first material rod is connected with the bottom surface of the groove, the upper end of each force sensor is connected with a load, and thermocouples are arranged in each first material rod and each second material rod along the axial direction respectively. The device and method which are provided by the invention can guarantee precise reading of a load and stable heat transfer temperature difference and can accurately measure heat conduction thermal resistance of the material contact interface in the vacuum environment.

Description

technical field [0001] The invention relates to a heat transfer test device and method for a support structure of a low-temperature container, and belongs to the technical field of vacuum heat-insulated low-temperature containers. Background technique [0002] Due to the characteristics of light weight, high strength and low thermal conductivity of FRP, it has been widely used in cryogenic containers. For the cryogenic liquid storage and transportation containers commonly used in the market at present, such as cryogenic liquid storage tanks, tank containers, cryogenic liquid transport vehicles, etc., the supports used to connect the inner and outer tanks of the container are usually made of FRP. FRP materials cannot be welded with metal. Therefore, when FRP is used as a connection and support for cryogenic vessels, it can only be placed in an appropriate position in the form of assembly using special procedures. This non-welded assembly creates thermal contact resistance be...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01N25/18G01N25/20
CPCG01N25/18G01N25/20
Inventor 朱鸣黄强华李邦宪张君鹏薄柯陈祖志古纯霖张波王玲
Owner CHINA SPECIAL EQUIP INSPECTION & RES INST