A conduction cooling high temperature superconducting cable temperature sensing structure and temperature detection method
A high-temperature superconducting and conduction cooling technology, used in thermometers, thermometers using directly thermally sensitive electrical/magnetic components, thermometer components, etc. The problem of high conductive cable can achieve the effect of strong anti-interference ability, convenient operation and wide measurement range.
Active Publication Date: 2022-02-11
陕西西典合创超导技术有限公司
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Problems solved by technology
The study found that the quench propagation speed of the high-temperature superconducting tape is very fast, which can easily lead to heat accumulation, so that the local temperature inside the superconducting cable is too high. If the hot point information cannot be fed back to the protection system in time, it may damage the Catastrophic damage to the entire system
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[0029] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form.
[0030] This embodiment relates to a temperature sensing structure and a temperature detection method of a conduction-cooled high-temperature superconducting cable, and the method includes the following steps:
[0031] In this embodiment, the temperature sensing structure of the conduction-cooled high-temperature superconducting cable is composed of multiple platinum resistors, thermal anchors, platinum resistor leads and temperature monitors. The accuracy of the platinum resistor is 0.1K, and the measurement range must be greater than that of the superconducting cable. In this embodiment, the high-temperature superconducting cable wound with Bi-based tape is selected, and the normal operating range is 50K-80K. Therefore...
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The invention discloses a conduction cooling high-temperature superconducting cable temperature sensing structure and a temperature detection method, including a superconducting cable test cavity, a superconducting strip, a superconducting cable support tube, a platinum resistor, a cold head of a refrigerator, and a temperature monitor The superconducting cable support tube is placed in the superconducting cable test cavity, and the superconducting tape is wound on the superconducting cable support tube, and multiple platinum resistors are arranged on the superconducting tape in a point-like distribution manner, and the platinum Resistor leads connect each platinum resistance thermometer to the temperature monitor individually. The temperature data of the measured point is transmitted to the temperature monitor in real time, the data of the measured point is fitted, and the temperature T-x curve is output. The invention has strong anti-interference ability and reliable temperature detection in the process of measuring the temperature field of the conduction cooling high-temperature superconducting cable, and can realize real-time detection of the temperature of the high-temperature superconducting cable, quickly provide a temperature feedback signal for the quench protection system, and ensure conduction cooling Stable operation of HTS cables.
Description
technical field [0001] The invention belongs to the field of superconducting cables, and relates to the measurement technology of the temperature field in the operation process of the high-temperature superconducting cables, in particular to the measurement method in the conduction cooling mode. Background technique [0002] With the development of superconducting technology, high-temperature superconducting cables have been widely studied by various countries, and many demonstration projects of superconducting cables have been built. A key research point for the stable operation of high-temperature superconducting cables is the stable operation of superconducting tapes. During operation, if external disturbances such as overcurrent, overheating, and mechanical strain occur, the superconducting strip will change from a superconducting state to a normal state, which is the so-called quench phenomenon. The study found that the quench propagation speed of the high-temperature ...
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IPC IPC(8): G01K7/18G01K1/14
CPCG01K7/18G01K1/14
Inventor 韩晶旺杨勇李晓航师阳吴云翼
Owner 陕西西典合创超导技术有限公司