System including a heat exchanger with different cryogenic fluids therein and method of using the same

a technology of cryogenic fluids and heat exchangers, which is applied in the field of systems and methods, can solve the problems of liquid cryogen vaporization and exhaustion of liquid cryogen from the system, many areas of the world do not have a ready supply of replacement liquid cryogen or an equivalent high purity gas, and many areas of the world do not have high purity gas equivalent,

Inactive Publication Date: 2008-09-04
PHILIPS MEDICAL SYST MR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although coils can be provided to customers with the cryogen installed, it is common for routine service and expected failure modes to deplete some of that cryogen.
Many areas of the world do not have ready supply of replacement liquid cryogen or an equivalent high purity gas.
The dual-phase, convective cooling loop suffers from the same problem as the immersion cooling.
A quench can cause all liquid cryogen to become vaporized and exhausted from the system.
As compared to convective cooling, the conductive cooling is very slow.

Method used

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  • System including a heat exchanger with different cryogenic fluids therein and method of using the same
  • System including a heat exchanger with different cryogenic fluids therein and method of using the same
  • System including a heat exchanger with different cryogenic fluids therein and method of using the same

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Embodiment Construction

[0013]A system can include a heat transfer structure and a heat exchanger. The heat transfer structure is to cool an object, and the heat exchanger is to cool a portion of the heat transfer structure. The system can be cooled significantly faster than a conventional system that uses conductive cooling. The system has no or less liquid cryogen that would be vaporized as compared to a conventional system that immerses the object to be cooled within a bath of liquid cryogen or has a substantial mass of liquid cryogen within a cooling loop. Thus, the system is more likely to withstand a fault or other undesired condition without having to recharge the system with a cryogen.

[0014]A few terms are defined or clarified to aid in understanding of the terms as used throughout this specification. As used herein, the term “coupled” is intended to mean a connection, linking, or association of two or more components, sub-systems, or any combination thereof in such a way that a fluid or energy may...

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Abstract

A system can include a heat transfer structure and a heat exchanger. The heat transfer structure is to cool an object, and the heat exchanger is to cool a portion of the heat transfer structure. The system can be cooled significantly faster than a conventional system that uses conductive cooling. The system has no or less liquid cryogen that would be vaporized as compared to a conventional system that immerses the object to be cooled within a bath of liquid cryogen or has a substantial mass of liquid cryogen within a cooling loop.

Description

BACKGROUND[0001]1. Field of the Disclosure[0002]The disclosure relates to systems, and methods, and more particularly to cooling systems including heat exchangers with different cryogenic fluids therein and methods of using the systems.[0003]2. Description of the Related Art[0004]A conventional low-temperature superconducting system can be cooled by immersion, convection, or conduction. Conventional immersion cooling of a cryogenic system can include using a liquid cryogen. FIG. 1 includes a schematic drawing of a conventional magnetic resonance imaging (“MRI”) system 100 that includes a superconducting coil 190 that is contained within a vessel 140. The vessel 140 has an outer wall 142, an inner wall 144, and a thermal shield 182 disposed therebetween. An interior space 160 is disposed within the inner wall 144. The vessel 120 can include another wall 172, a patient wall 174 with a space 176 in which a patient (not illustrated) may be placed when using the MRI system 110 during nor...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): F25B19/00
CPCF25B9/14F25B25/005G01R33/3815G01R33/3804F25D19/006
Inventor ACKERMANN, ROBERT A.MENTEUR, PHILIPPEREIS, CHANDRA T.
Owner PHILIPS MEDICAL SYST MR
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