Title:
FREEZER DEVICE AND LIQUID TEMPERATURE CONTROL SYSTEM
Document Type and Number:
Japanese Patent JP2021148354
Kind Code:
A
Abstract:
To improve freezing performance as much as possible in an actual form avoiding making mechanical constitution of a freezer device highly functional, and heavy and thick too much.SOLUTION: A freezer device has: a compressor 20 which compresses a mixed refrigerant; a first condenser 21 which condenses part of the mixed refrigerant; a gas-liquid separator 22 which separates the mixed refrigerant having passes through the first condenser 21 into a first fluid portion in gas phase and a second fluid portion in liquid phase; a second condenser 23 which condenses the first fluid portion separated by the gas-liquid separator 22; a first expansion valve 24 which expands the first fluid portion having passed through the second condenser 23; and an evaporator 25. A branch flow passage 13 for supplying the second fluid portion separated by the gas-liquid separator 22 is connected to the second condenser 23, and the second fluid portion flows in the second condenser 23 through a second expansion valve 30 in the branch flow passage 13. Here, a first refrigerant is R23, and a second refrigerant is R134a, a composition ratio R23/R134a being 50:50 to 60:40 in terms of mass%.SELECTED DRAWING: Figure 1
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Inventors:
KITA TAKAFUMI
FURUMOTO HIDEAKI
FURUMOTO HIDEAKI
Application Number:
JP2020047934A
Publication Date:
September 27, 2021
Filing Date:
March 18, 2020
Export Citation:
Assignee:
SHINWA CONTROLS CO LTD
International Classes:
F25B1/00; F25B6/04; F25B43/00
Attorney, Agent or Firm:
Yukitaka Nakamura
Satoru Asakura
Yukihiro Hotta
Yoshiki Kanagawa
Satoru Asakura
Yukihiro Hotta
Yoshiki Kanagawa