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Title:
CRYOGENIC COOLING DEVICE
Document Type and Number:
Japanese Patent JPH02110280
Kind Code:
A
Abstract:

PURPOSE: To control the movement of heat between a high-temperature end and a low-temperature end to cool and/or heat a heat exchanger in a short period of time and prevent the inside of the vacuum tank of a cooling device from being contaminated by gas leak and the like by a method wherein the high-temperature end of the cryogenic heat exchanger is conducted to the low-temperature end of the same by heat conductors through a thermal switch.

CONSTITUTION: The high-temperature end of a heat exchanger 10 in a cryogenic area is conducted to the low-temperature end of the same by heat conductors 16, 17 through a thermal switch 15 while the switching of the thermal switch 15 is effected by a handle 19 and a rod 20 in room temperature side through an elastic body 18. When the high-temperature end of the heat exchanger 10 is cooler than the low-temperature end of the same, a thermal switch 15 is put ON and heat is moved from a pipeline 25 to the pipeline 21 through the heat conductors 16, 17 whereby the low-temperature end is cooled in a short period of time from the outside of the heat exchanger. The thermal switch 15 moves heat by contact and, therefore, the thermal switch will never contaminate a vacuum space wherein the thermal switch is arranged. On the other hand, the low-temperature end may be heated also in a short period of time by the thermal switch in the same manner even when the heat exchanger is being heated.


Inventors:
SAHO NORIHIDE
NEMOTO TAKEO
SAEKI MITSURU
TAKADA TADASHI
Application Number:
JP26152488A
Publication Date:
April 23, 1990
Filing Date:
October 19, 1988
Export Citation:
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Assignee:
HITACHI LTD
International Classes:
F25D31/00; F25D13/00; (IPC1-7): F25D13/00; F25D31/00
Attorney, Agent or Firm:
Katsuo Ogawa (1 person outside)