Title:
制御装置、冷凍機、制御方法及び異常検出方法
Document Type and Number:
Japanese Patent JP7157589
Kind Code:
B2
Abstract:
The present invention provides a control device for detecting an abnormal operation state of a compressor in a parallel refrigerator. The control device is a control device for a refrigerator that includes a plurality of compressors connected in parallel, and detects occurrence of surging and occurrence of droplet suction on the basis of a deviation between values of currents flowing through electric motors that is configured to drive each of the plurality of compressors, and an operation point indicated by the air volume and the compression ratio of the plurality of compressors.
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Inventors:
Ryosuke Suemitsu
Akimasa Yokoyama
Takehiro Kawano
Yasushi Hasegawa
Akimasa Yokoyama
Takehiro Kawano
Yasushi Hasegawa
Application Number:
JP2018152256A
Publication Date:
October 20, 2022
Filing Date:
August 13, 2018
Export Citation:
Assignee:
Mitsubishi Heavy Industries Thermal Systems Co., Ltd.
International Classes:
F25B49/02; F04D27/02; F25B1/00; F25B1/053; H02P5/46
Domestic Patent References:
| JP2011111950A | ||||
| JP5543175B2 | ||||
| JP2005534858A |
Attorney, Agent or Firm:
Yasushi Matsunuma
Eisuke Ito
Hiroyuki Hashimoto
Ancient city Satoshi
Koichiro Kamada
Taichi Hasegawa
Eisuke Ito
Hiroyuki Hashimoto
Ancient city Satoshi
Koichiro Kamada
Taichi Hasegawa
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