Title:
CRYOGENIC SYSTEM AND CONTROL METHOD FOR CRYOGENIC SYSTEM
Document Type and Number:
WIPO Patent Application WO/2024/014117
Kind Code:
A1
Abstract:
A cryogenic system (100) comprises: a cryogenic refrigerator (10); and a controller (60). The cryogenic refrigerator (10) is provided with a first cylinder (16a), a second cylinder (16b) that is provided with, at an axially middle portion, a heat absorption part (46) to be thermally connected to a heat source, a first temperature sensor (51) that measures the temperature at one axial end of the second cylinder (16b), a second temperature sensor (52) that measures the temperature at the other axial end of the second cylinder (16b), and a third temperature sensor (53) that measures the temperature at the heat absorption part (46). The controller (60) is configured to: acquire a first measured temperature from the first temperature sensor (51), a second measured temperature from the second temperature sensor (52), and a third measured temperature from the third temperature sensor (53); set the upper limit temperature for the heat absorption part (46) on the basis of the first measured temperature, the second measured temperature, and the axial position of the heat absorption part (46); and control the heat source such that the third measured temperature is equal to or lower than the upper limit temperature of the heat absorption part (46).
Inventors:
HIRAYAMA TAKASHI (JP)
Application Number:
PCT/JP2023/018541
Publication Date:
January 18, 2024
Filing Date:
May 18, 2023
Export Citation:
Assignee:
SUMITOMO HEAVY INDUSTRIES (JP)
International Classes:
F25B9/14
Foreign References:
| JP2016058625A | 2016-04-21 | |||
| JPH0674584A | 1994-03-15 | |||
| JPH05340622A | 1993-12-21 | |||
| JP2014527610A | 2014-10-16 |
Attorney, Agent or Firm:
MORISHITA Sakaki (JP)
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