Gas-liquid separation device and method for superconducting magnet

Abstract

A gas-liquid separation device and method for superconducting magnet. The device comprises the following pats: a liquid inlet pipe for introducing cryogenic fluid infusion, wherein an input end of the pipe communicates with a liquid transport pipe outside a Dewar flask; a gas-liquid separation chamber with a liquid inlet and a liquid outlet, wherein the liquid inlet communicates with the output end of the liquid inlet pipe, and the liquid outlet is located at the bottom of the cavity, and the top is an opening or provided with an exit pipe, and the diameter of the top opening or the exit pipe is larger than that of the liquid inlet pipe; and a liquid outlet pipe used to introduce fluid infusion into the Dewar flask, a head liquid inlet of the pipe communicates with the liquid outlet at the bottom of the gas-liquid separation chamber, and a tail outlet does not align at the superconducting magnet in the Dewar flask The gas-liquid separation device for superconducting magnet is fixed on the upper part of the Dewar flask, and above the superconducting magnet arranged in the Dewar flask and the cryogenic liquid level; and fluid infusion from outside the Dewar flask passing through the device can separate and discharge nitrogen and liquid nitrogen from different outlets, in order to reduce the impact on superconducting magnet during rehydration.

Description

technical field [0001] The invention belongs to the field of superconducting technology, in particular to a gas-liquid separation device and its method which can solve the impact damage to the superconducting magnet caused by the vaporization of the low-temperature liquid when filling a cryogenic container equipped with a superconducting magnet with a cryogenic liquid . Background technique [0002] When the temperature of a superconducting material is lower than the critical temperature, it enters a superconducting state, and its resistance is zero. In order to take advantage of this characteristic of superconducting materials, it is necessary to place the superconducting material in a low-temperature liquid (such as liquid nitrogen) and perform low-temperature cooling to make the resistance of the superconducting material zero. Therefore, it is necessary to manufacture cryogenically insulated containers (also known as Dewars) for liquid nitrogen and to replenish the consu...

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Problems solved by technology

[0004] Therefore, taking measures outside the Dewar cannot completely solve the problem of impact on the superconducting magnet during fluid replacement, and measures need to be taken inside the Dewar

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