Title:
【発明の名称】冷凍装置
Document Type and Number:
Japanese Patent JP3208151
Kind Code:
B2
Abstract:
The present invention provides a refrigerating unit comprising a high temperature side refrigerant circuit (2) and a low temperature side refrigerant circuit (3) for forming an independent refrigerant closed-circuit (3) for forming an independent closed-circuit which exhibits a refrigerating effect by that a refrigerant discharged from each compressor (4) and (10) is condensed and then is evaporated, and an evaporator (14) of the high temperature side refrigerant circuit (2) and a condenser (23) of the low temperature side refrigerant circuit (3) form a thermal exchanger (25), wherein a non-azeotropic mixture refrigerant comprising; (a) an inorganic refrigerant selected from the group consisting of argon and nitrogen, (b) a hydrocarbon which makes (a) component liquidize, and (c) at least one refrigerant selected from the group consisting of hydrochlorofluorocarbon, hydrofluorocarbon, hydrocarbon and fluorocarbon, which makes (b) component liquidize, is sealed into the low temperature side refrigerant circuit (3). Preferably, (a) component of said non-azeotropic mixture refrigerant is argon, (b) component of said non-azeotropic mixture refrigerant is methane and (c) component of said non-azeotropic mixture refrigerant is a mixture of dichlorofluoromethane, tetrafluoromethane, (d) component selected from the group consisting of chlorodifluoromethane, difluoromethane and pentafluoroethane, and (e) component which is trifluoromethane and/or hexafluoroethane.
Inventors:
Jiro Yuzawa
Kazuo Takemasa
Katsuhiko Inoue
Fukuharu Yoshida
Yutaka Ohmori
Kazuo Takemasa
Katsuhiko Inoue
Fukuharu Yoshida
Yutaka Ohmori
Application Number:
JP12390491A
Publication Date:
September 10, 2001
Filing Date:
May 28, 1991
Export Citation:
Assignee:
Sanyo Electric Co., Ltd.
International Classes:
C09K5/04; F25B7/00; F25B9/00; (IPC1-7): F25B7/00; C09K5/04
Domestic Patent References:
| JP496989A | ||||
| JP3260557A | ||||
| JP3158659A |
Attorney, Agent or Firm:
Masamasa Shibano