JPS5485455A - Refrigerating system - Google Patents

Refrigerating system

Info

Publication number
JPS5485455A
JPS5485455A JP15465877A JP15465877A JPS5485455A JP S5485455 A JPS5485455 A JP S5485455A JP 15465877 A JP15465877 A JP 15465877A JP 15465877 A JP15465877 A JP 15465877A JP S5485455 A JPS5485455 A JP S5485455A
Authority
JP
Japan
Prior art keywords
compressor
stage compression
condenser
refrigerating cycle
sucked
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
JP15465877A
Other languages
Japanese (ja)
Other versions
JPS611658B2 (en
Inventor
Akira Hara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP15465877A priority Critical patent/JPS5485455A/en
Publication of JPS5485455A publication Critical patent/JPS5485455A/en
Publication of JPS611658B2 publication Critical patent/JPS611658B2/ja
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/07—Details of compressors or related parts
    • F25B2400/075—Details of compressors or related parts with parallel compressors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/13—Economisers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/25—Control of valves
    • F25B2600/2509—Economiser valves

Landscapes

  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)

Abstract

PURPOSE: To promote the cooling capacity and the use efficiency of energy by giving a switching control between a single-stage and a two-stage compression operation according to the driving state of a refrigerating cycle.
CONSTITUTION: When the evaporating pressure is high such as in a pull-down driving or an initial driving of cooling, the first and the second connecting ports 8a and 8b are connected in a three-way valve 8 by a pressure detector 35, and the refrigerant liquid in a condenser 3 is sucked into the first compressor 1 through an intermediate cooler 4, an expansion valve 5, an evaporator 6, and an accumulator 7 in the state of refrigerant gas to be introduced into the condenser 3 through a discharge pipe 13 for single-stage compression, and a nonreturn valve 26. Meanwhile, it is sucked into the second compressor 2 through the second suction pipe 10, and introduced into the condenser 3 through the second discharge pipe 12 and the nonreturn valve 26 for forming a single-stage compression refrigerating cycle by the first and the second compressor 1 and 2 in parallel. When the evaporating pressure is low, the first and the third connecting port 8a and 8c are connected, and the first and the second compressor 1 and 2 are separated to the low and the high pressure side for forming a two-stage compression refrigerating cycle.
COPYRIGHT: (C)1979,JPO&Japio
JP15465877A 1977-12-21 1977-12-21 Refrigerating system Granted JPS5485455A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15465877A JPS5485455A (en) 1977-12-21 1977-12-21 Refrigerating system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15465877A JPS5485455A (en) 1977-12-21 1977-12-21 Refrigerating system

Publications (2)

Publication Number Publication Date
JPS5485455A true JPS5485455A (en) 1979-07-07
JPS611658B2 JPS611658B2 (en) 1986-01-18

Family

ID=15589041

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15465877A Granted JPS5485455A (en) 1977-12-21 1977-12-21 Refrigerating system

Country Status (1)

Country Link
JP (1) JPS5485455A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006022541A1 (en) * 2004-08-24 2006-03-02 Nederlandse Organisatie Voor Toegepast- Natuurwetenschappelijk Onderzoek Tno A method and a cooling system in which a refrigerant is used as a cooling agent and as a defrosting agent
JP2007232280A (en) * 2006-03-01 2007-09-13 Daikin Ind Ltd Refrigeration unit
EP1422487A3 (en) * 2002-11-21 2008-02-13 York Refrigeration APS Hot gas defrosting of refrigeration plants
WO2010036540A1 (en) 2008-09-29 2010-04-01 Carrier Corporation Capacity boosting during pulldown
CN102927713A (en) * 2012-11-12 2013-02-13 天津商业大学 Double-stage multi-concatenate secondary throttling refrigerating system with middle cooling completely
CN103335438A (en) * 2013-07-04 2013-10-02 天津商业大学 One-stage throttling incomplete-inter-cooling variable-flow twin-stage compression refrigerating system
EP2615392A3 (en) * 2012-01-10 2016-06-22 LG Electronics, Inc. Cascade heat pump

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63202763U (en) * 1987-06-17 1988-12-27
JP2007298188A (en) * 2006-04-27 2007-11-15 Daikin Ind Ltd Refrigerating device

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1422487A3 (en) * 2002-11-21 2008-02-13 York Refrigeration APS Hot gas defrosting of refrigeration plants
WO2006022541A1 (en) * 2004-08-24 2006-03-02 Nederlandse Organisatie Voor Toegepast- Natuurwetenschappelijk Onderzoek Tno A method and a cooling system in which a refrigerant is used as a cooling agent and as a defrosting agent
JP2007232280A (en) * 2006-03-01 2007-09-13 Daikin Ind Ltd Refrigeration unit
WO2010036540A1 (en) 2008-09-29 2010-04-01 Carrier Corporation Capacity boosting during pulldown
EP2331887A1 (en) * 2008-09-29 2011-06-15 Carrier Corporation Capacity boosting during pulldown
US20110162396A1 (en) * 2008-09-29 2011-07-07 Carrier Corporation Capacity boosting during pulldown
CN102165274A (en) * 2008-09-29 2011-08-24 开利公司 Capacity boosting during pulldown
EP2331887A4 (en) * 2008-09-29 2013-04-24 Carrier Corp Capacity boosting during pulldown
EP2615392A3 (en) * 2012-01-10 2016-06-22 LG Electronics, Inc. Cascade heat pump
US9759454B2 (en) 2012-01-10 2017-09-12 Lg Electronics Inc. Cascade heat pump
CN102927713A (en) * 2012-11-12 2013-02-13 天津商业大学 Double-stage multi-concatenate secondary throttling refrigerating system with middle cooling completely
CN103335438A (en) * 2013-07-04 2013-10-02 天津商业大学 One-stage throttling incomplete-inter-cooling variable-flow twin-stage compression refrigerating system

Also Published As

Publication number Publication date
JPS611658B2 (en) 1986-01-18

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