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Patent Searching and Data


Title:
REFRIGERANT STATE DETECTION DEVICE, REFRIGERANT STATE DETECTION METHOD, AND TEMPERATURE CONTROL SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/230641
Kind Code:
A1
Abstract:
[Problem] A refrigerant state detection device (40A) according to one embodiment is provided with: a temperature information acquisition unit (41) for acquiring the temperature of a refrigerant flowing out from a condenser in a refrigeration circuit having a compressor, the condenser, an expansion valve, and an evaporator, and for acquiring the temperature of a cooling fluid, which is for cooling the refrigerant in the condenser, before the refrigerant is cooled; and a refrigerant state determination unit (42) for determining that a leak or shortage of the refrigerant has occurred when the difference between the temperature of the refrigerant as acquired by the temperature information acquisition unit (41) and the temperature of the cooling fluid exceeds a pre-recorded threshold.

Inventors:
YAMAGUCHI SYUNJI (JP)
MINEHARA KOMEI (JP)
FUKAI KENTA (JP)
Application Number:
JP2020/018223
Publication Date:
November 19, 2020
Filing Date:
April 30, 2020
Export Citation:
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Assignee:
SHINWA CONTROLS CO LTD (JP)
International Classes:
F25B6/04; F24F11/36; F24F11/38; F24F11/49; F25B1/00; F25B39/04; F25B45/00; F25B49/02
Foreign References:
JP2019002639A2019-01-10
JP2005140409A2005-06-02
JP2017075761A2017-04-20
Attorney, Agent or Firm:
NAKAMURA Yukitaka et al. (JP)
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