A Refrigeration System Based on Conduction Cooling Superconducting Motor

Abstract

The invention relates to a superconducting motor refrigeration system based on conduction cooling technology, which includes a compressor, a cold head of a refrigerator, a sealing device, a vacuum cover, a magnet skeleton, a cold conducting belt and a radiation protection screen, and the radiation protection screen is fixed and installed through a supporting structure On the inner wall of the vacuum cover; the compressor is connected with the cold head of the refrigerator through a sealing device, and the cold head of the refrigerator passes through the vacuum cover and the radiation shield in turn and is fixedly installed on the vacuum cover, and the cold head of the refrigerator is connected with the vacuum cover and the radiation shield Rotate synchronously; there is a magnet skeleton for installing superconducting magnets in the radiation shield, and the two ends of the magnet skeleton are respectively connected to the two ends of the vacuum cover through the torque tube through the radiation shield; the inner wall of the magnet skeleton is connected with a cold conducting belt, The cold conduction belt is connected to the cold head of the refrigerator located in the radiation shield; the invention adopts a high-efficiency cold conduction belt conduction cooling magnet, which eliminates the cooling medium used in the traditional cooling scheme, so that the use of the system is more flexible and more reliable High, effectively reducing the failure rate of the system.

Description

technical field [0001] The invention relates to a refrigeration technology of a superconducting motor, in particular to a refrigeration system of a superconducting motor based on conduction cooling. Background technique [0002] As an emerging technology, superconducting technology has gradually shown irreplaceable advantages in power applications. The fan manufactured by superconducting technology has a rotor wound by high-temperature superconducting (HTS) wire, and its current-carrying density can be increased by about 150 times compared with conventional copper wire, making superconducting motors have extremely high energy density. On the one hand, the volume of the motor is greatly reduced. At the same time, because the superconducting coil can generate a very strong magnetic field, the iron core in the motor can be omitted, and the weight of the motor is also reduced a lot. According to the estimation of American Superconducting Corporation, the weight of 10MW supercon...

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Problems solved by technology

However, the use of liquid helium and other refrigerators greatly reduces the safety and reliability of the system. On the other hand, the system must rely on the use of refrigerants to work normally, which also reduces the adaptability of the system.

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