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cryogenic cooling system

A cooling system and low-temperature technology, applied in the field of cooling system and low-temperature cooling system, can solve the problems of increasing the complexity of operation and increasing the cost, and achieve the effect of simplifying the process and reducing the use.

Active Publication Date: 2017-02-15
ALLTECH MEDICAL SYST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

During the entire cooling process, both cryogenic liquid nitrogen and cryogenic liquid helium are consumed, which increases the complexity of the operation and increases the cost due to the use of liquid helium for cooling

Method used

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Embodiment Construction

[0014] Such as figure 1 Shown is a cryogenic cooling system provided by the present invention that can significantly reduce the cost during the cooling process of the superconducting magnet from room temperature of 300K to the temperature range of 4.2K liquid helium. The low-temperature cooling system includes a low-temperature cold box 1, a low-temperature refrigeration unit 2, a liquid helium container 4 containing an installation channel 3, a cold shield 6 containing an outlet 5, and a 300K container 8 containing a connecting flange 7. The liquid helium The container 4 is located in the cold screen 6, and the cold screen 6 is located in the 300K container 8; the free end of the installation channel 3 passes through the cold screen 6 through the outlet 5 Connected with the connecting flange 7, the low-temperature cold box 1 is covered on the connecting flange 7 on the top of the 300K container 8, and the connecting flange 7 is closed, and the low-temperature refrigeration un...

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Abstract

The invention discloses a low-temperature cooling system and belongs to the technical field of design and manufacture of medical apparatus and instruments. The invention provides a low-temperature cooling system through which the cost can be obviously reduced in the process of cooling a superconducting magnet in a temperature area from 300K to 4.2K. The low-temperature cooling system comprises a low-temperature refrigerated container, a low-temperature refrigerating unit, a liquid nitrogen container with a mounting channel, a cold shield with a perforation, and a 300K container with a connecting flange, wherein the liquid nitrogen container is positioned in the cold shield; the cold shield is positioned in the 300K container; the low-temperature refrigerating unit comprises a primary refrigerating unit, a secondary refrigerating unit and a primary hot link; the low-temperature refrigerating unit is arranged in the mounting channel through a top wall of the low-temperature refrigerated container; the secondary refrigerating unit is positioned in the mounting channel; the low-temperature cooling system also comprises a heat exchange cold guiding device positioned at the middle lower part of the mounting channel; the heat exchange cold guiding device is connected to the tail end of the secondary refrigerating unit of the low-temperature refrigerating unit.

Description

technical field [0001] The invention relates to a cooling system, in particular to a low-temperature cooling system, and belongs to the technical field of medical device design and manufacture. Background technique [0002] At present, the cooling system of the cryogenic container for superconducting MRI usually first cools the superconducting magnet to 77K with liquid nitrogen, then blows out the liquid nitrogen, flushes it with helium, and then fills the container with liquid helium, so as to realize the magnet from The cooling process from 300K room temperature to 4.2K liquid helium temperature zone. During the entire cooling process, both cryogenic liquid nitrogen and cryogenic liquid helium are consumed, which increases the complexity of the operation and increases the cost due to the use of liquid helium for cooling. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a low-temperature cooling system that can ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F6/04
Inventor 袁金辉张涛
Owner ALLTECH MEDICAL SYST
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