Low-temperature container capable of achieving temperature changing and pressure changing

Abstract

The invention provides a low-temperature container capable of achieving temperature changing and pressure changing. The low-temperature container comprises a low-temperature container body used for containing liquid nitrogen and providing a low-temperature environment needed by superconductive belt material tests, a flange used for sealing the low-temperature container body and allowing a measurement line to be led out from the inside of the low-temperature container body, a refrigerator arranged on the flange and used for carrying out low-temperature refrigeration on the low-temperature container body, a high-voltage wire leading-out end and a low-voltage wire leading-out end which are arranged on the flange and used for leading out a high potential measurement lead and a low potential measurement lead respectively, a pressurization device used for generating different pressure in the low-temperature container body, a pressurization port used for connecting the low-temperature container body with the pressurization device, and a pressure meter used for testing pressure in the low-temperature container body. According to the low-temperature container, temperature changing and pressure changing experiment conditions can be provided simultaneously, convenience is brought for the superconductive belt material tests, test accuracy is improved, the test process is easier and test efficiency is improved.

Description

technical field [0001] The invention relates to the field of superconducting material testing, in particular to a low temperature container with variable temperature and pressure. Background technique [0002] Superconducting materials are materials that exhibit the properties of resistance equal to zero and repulsion of magnetic field lines under certain low temperature conditions. Twenty-eight elements and thousands of alloys and compounds have been found to be superconductors. When the superconducting material is in the superconducting state, the resistance is zero and can transmit electrical energy without loss. If a magnetic field is used to induce an induced current in the superconducting loop, this current can be maintained without attenuation. [0003] With the rapid development and commercial supply of high-temperature superconducting materials in recent years, the research on superconducting power technology is rapidly expanding around the world. The fields invo...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the technical problem that the cryogenic container used for testing superconducting materials in the prior art can only independently provide the experimental conditions of variable temperature or variable pressure, but cannot provide the experimental conditions of variable temperature and variable pressure at the same time

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