Superconducting MRI low temperature refrigeration system

A low-temperature refrigeration system and superconducting technology, applied in the field of superconducting MRI low-temperature refrigeration system, can solve the problems of many temperature detection reflection circuits, energy consumption, multi-energy and other problems, and achieve the purpose of reducing energy consumption, reducing system energy consumption, and simplifying the number of Effect

Inactive Publication Date: 2014-04-23
ALLTECH MEDICAL SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the current related equipment has a large number of temperature detection reflection circuits, and each detection circuit needs to consume more energy, so a large amount of energy consumption will be generated in actual use.

Method used

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  • Superconducting MRI low temperature refrigeration system

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Embodiment Construction

[0012] The present invention will be further described below in conjunction with the accompanying drawings.

[0013] The superconducting MRI cryogenic refrigeration system as shown in Figure 1 includes a pressure sensor 3, a compressor 1, a refrigerator 2, and a liquid helium container 4 with a cavity 8 inside, and a first outer layer container is arranged outside the liquid helium container 4 5 and the liquid helium container 4 is sealed in the first outer container 5, the first outer container 5 is provided with a second outer container 6 and the first outer container 5 is sealed in the second outer container 6, The gas pipeline 31 of the pressure sensor 3 extends from the cavity 8 of the liquid helium container 4 along the wall of the liquid helium container 4, the wall of the first outer container 5, and the wall of the second outer container 6 to the pressure sensor 3. The low-temperature cold head 21 of the refrigerator 2 is arranged in the cavity 8 of the liquid helium ...

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Abstract

The invention relates to the field of low temperature superconducting equipment, in particular to a superconducting MRI low temperature refrigeration system and solves the technical problem of effectively decreasing equipment energy consumption on the premise of guaranteeing temperature detection effect. The superconducting MRI low temperature refrigeration system comprises a pressure sensor, a compressor, a refrigerator, a liquid helium vessel with an inner cavity, a first outer vessel, and a second outer vessel. A low temperature refrigerating head of the refrigerator is disposed in the cavity of the liquid helium vessel. Both the pressure sensor and the refrigerator are communicated with the compressor. The superconducting MRI low temperature refrigeration system has the advantages that the amount of temperature detection loops is greatly decreased, temperature control is effective, energy consumption is effectively reduced, and the energy consumption of the superconducting MRI low temperature refrigeration system applied can be reduced.

Description

technical field [0001] The invention relates to the field of low-temperature superconducting equipment, in particular to a superconducting MRI low-temperature refrigeration system. Background technique [0002] At present, 4K (absolute temperature) cryogenic refrigeration technology has been widely used in cryogenic container systems for superconducting MRI to achieve zero liquid helium consumption. The principle is: the heat load transferred to the inner container through the temperature difference is first absorbed by the liquid helium in the inner container, and the liquid helium that has absorbed the heat evaporates into helium gas, and the evaporated helium gas flows to the secondary heat transfer of the cold head The surface of the 4K temperature zone of the block condenses into liquid helium and flows back into the liquid helium in the 4K container, thereby achieving zero liquid helium consumption. However, because the current related equipment has many temperature d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B9/00
Inventor 袁金辉张涛
Owner ALLTECH MEDICAL SYST
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