JPH04174259A - Low and high temperature medium cooling refrigerator - Google Patents

Low and high temperature medium cooling refrigerator

Info

Publication number
JPH04174259A
JPH04174259A JP30135290A JP30135290A JPH04174259A JP H04174259 A JPH04174259 A JP H04174259A JP 30135290 A JP30135290 A JP 30135290A JP 30135290 A JP30135290 A JP 30135290A JP H04174259 A JPH04174259 A JP H04174259A
Authority
JP
Japan
Prior art keywords
switching valve
refrigerant
compressor
temperature
low pressure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP30135290A
Other languages
Japanese (ja)
Other versions
JP2756362B2 (en
Inventor
Hitoshi Watabe
Koichi Kodera
Akiyuki Kawashima
Masaru Nakazawa
Isao Nishio
Original Assignee
Sanki Eng Co Ltd
Toyota Motor Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sanki Eng Co Ltd, Toyota Motor Corp filed Critical Sanki Eng Co Ltd
Priority to JP2301352A priority Critical patent/JP2756362B2/en
Publication of JPH04174259A publication Critical patent/JPH04174259A/en
Application granted granted Critical
Publication of JP2756362B2 publication Critical patent/JP2756362B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D16/00Devices using a combination of a cooling mode associated with refrigerating machinery with a cooling mode not associated with refrigerating machinery

Abstract

PURPOSE: To reduce capacity of a compressor of a refrigerating cycle by coupling both ends of a cooling circuit in which a first switching valve, a refrigerant cooler using natural cold, a second switching valve are sequentially interposed at the upper side of a low pressure receiver.
CONSTITUTION: If temperature of heat medium air to be cooled is, for example, higher than natural cold temperature, a compressor 20 is stopped, a first switching valve 33, a second switching valve 35 are opened, and then refrigerant is circulated in a passage of an evaporator 28, a first low pressure gas line 30, a low pressure receiver 24, a refrigerant cooler 34, the receiver 34, a liquid pump 29 and the evaporator 28. In this case, the refrigerant is heat exchanged with natural cold such as the atmosphere, well water, etc., by the cooler 34, and the medium air can be reduced at its temperature. That is, the capacity of the compressor 20 of a refrigerating cycle can be reduced.
COPYRIGHT: (C)1992,JPO&Japio
JP2301352A 1990-11-07 1990-11-07 Refrigeration system for cooling both low temperature medium and high temperature medium Expired - Fee Related JP2756362B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2301352A JP2756362B2 (en) 1990-11-07 1990-11-07 Refrigeration system for cooling both low temperature medium and high temperature medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2301352A JP2756362B2 (en) 1990-11-07 1990-11-07 Refrigeration system for cooling both low temperature medium and high temperature medium

Publications (2)

Publication Number Publication Date
JPH04174259A true JPH04174259A (en) 1992-06-22
JP2756362B2 JP2756362B2 (en) 1998-05-25

Family

ID=17895835

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2301352A Expired - Fee Related JP2756362B2 (en) 1990-11-07 1990-11-07 Refrigeration system for cooling both low temperature medium and high temperature medium

Country Status (1)

Country Link
JP (1) JP2756362B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014020737A (en) * 2012-07-23 2014-02-03 Toyo Eng Works Ltd Refrigerant circulation cooling system
CN104236147A (en) * 2013-06-20 2014-12-24 重庆美的通用制冷设备有限公司 Water cooling unit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014020737A (en) * 2012-07-23 2014-02-03 Toyo Eng Works Ltd Refrigerant circulation cooling system
CN104236147A (en) * 2013-06-20 2014-12-24 重庆美的通用制冷设备有限公司 Water cooling unit
CN104236147B (en) * 2013-06-20 2017-02-15 重庆美的通用制冷设备有限公司 Water cooling unit

Also Published As

Publication number Publication date
JP2756362B2 (en) 1998-05-25

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