Title:
REFRIGERATION MACHINE CONTROL METHOD, REFRIGERATION MACHINE CONTROL PROGRAM, AND REFRIGERATION MACHINE
Document Type and Number:
WIPO Patent Application WO/2023/149147
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a refrigeration machine control method, a refrigeration machine control program, and a refrigeration machine, whereby it is possible to improve the cooldown speed while preventing surging in the cooldown of a turbo compressor. The present invention provides a method for controlling a refrigeration machine (101), the method comprising: a first step for opening a bypass valve (12); a second step for starting an expansion turbine (15); a step for starting a turbo compressor (11) at a rotational speed at which no-load operation is possible; a step for increasing the rotational speed of the turbo compressor (11) so that the relationship between the compressor flow rate and the pressure ratio is on the low flow rate, high pressure ratio side within an operable range; a step for closing the bypass valve (12); and a step for cooling down until the measurement value of a thermometer (16) reaches a predetermined value.
Inventors:
ISHII MASAKI (JP)
OZAKI SHINSUKE (JP)
IWAMOTO KENJI (JP)
HOTEI YUJIRO (JP)
OZAKI SHINSUKE (JP)
IWAMOTO KENJI (JP)
HOTEI YUJIRO (JP)
Application Number:
PCT/JP2022/048537
Publication Date:
August 10, 2023
Filing Date:
December 28, 2022
Export Citation:
Assignee:
TAIYO NIPPON SANSO CORP (JP)
International Classes:
F25B1/053; F04D27/00; F04D27/02; F25B1/00; F25B9/06
Foreign References:
| JP2018066511A | 2018-04-26 | |||
| JP2020079688A | 2020-05-28 | |||
| JP2011002186A | 2011-01-06 | |||
| JPH1151502A | 1999-02-26 |
Attorney, Agent or Firm:
SHIGA INTERNATIONAL PATENT OFFICE (JP)
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