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JPS54146048A - Double-step compression type freezer - Google Patents

Double-step compression type freezer

Info

Publication number
JPS54146048A
JPS54146048A JP5480678A JP5480678A JPS54146048A JP S54146048 A JPS54146048 A JP S54146048A JP 5480678 A JP5480678 A JP 5480678A JP 5480678 A JP5480678 A JP 5480678A JP S54146048 A JPS54146048 A JP S54146048A
Authority
JP
Japan
Prior art keywords
circuit
double
side compressor
compression type
step side
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
JP5480678A
Other languages
Japanese (ja)
Other versions
JPS5852148B2 (en
Inventor
Akira Hara
Osamu Kawai
Isao Sakagami
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 JP5480678A priority Critical patent/JPS5852148B2/en
Publication of JPS54146048A publication Critical patent/JPS54146048A/en
Publication of JPS5852148B2 publication Critical patent/JPS5852148B2/en
Expired 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
    • F25B2400/13—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
    • F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
    • F25B47/02—Defrosting cycles
    • F25B47/022—Defrosting cycles hot gas defrosting

Landscapes

  • Defrosting Systems (AREA)

Abstract

PURPOSE: To improve defrosting operation efficiency by supplying retrigerant to the circuit branched from a defrosting circuit to extend up to suction side of a high- step side compressor through the heat exchanger provided in an accumulator but not to a condenser.
CONSTITUTION: A heat exchanger 7 provided in an accumulator 12 is connected by one end to the circuit interconnecting the three-way valve 16 furnished at the branch poriton of the circuit for connecting the discharge side of a high-step side compressor 3 to said condenser 4 and a cooler 11 an one hand and said cooler 11 on the other, and by the other to the throttling means 18 connected to the suction side of said high-step side compressor 3. An intermediate circuit 400 is branched 5 from an intermediate of the circuit extending between the three-way valve 16 of a defrosting circuit 300 to extend up to the suction side of said high- step side compressor 3 through said heat exhanger 7 and throttling means 18.
COPYRIGHT: (C)1979,JPO&Japio
JP5480678A 1978-05-08 1978-05-08 Two-stage compression refrigeration equipment Expired JPS5852148B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5480678A JPS5852148B2 (en) 1978-05-08 1978-05-08 Two-stage compression refrigeration equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5480678A JPS5852148B2 (en) 1978-05-08 1978-05-08 Two-stage compression refrigeration equipment

Publications (2)

Publication Number Publication Date
JPS54146048A true JPS54146048A (en) 1979-11-14
JPS5852148B2 JPS5852148B2 (en) 1983-11-21

Family

ID=12980966

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5480678A Expired JPS5852148B2 (en) 1978-05-08 1978-05-08 Two-stage compression refrigeration equipment

Country Status (1)

Country Link
JP (1) JPS5852148B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1403600A1 (en) * 2001-07-02 2004-03-31 Sanyo Electric Co., Ltd. Heat pump device
EP1775531A1 (en) * 2005-10-12 2007-04-18 GTI Koudetechnik B.V. Apparatus and system for cooling and/or freezing and defrosting
JP2014224644A (en) * 2013-05-16 2014-12-04 シャープ株式会社 Heat pump device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1403600A1 (en) * 2001-07-02 2004-03-31 Sanyo Electric Co., Ltd. Heat pump device
EP1403600A4 (en) * 2001-07-02 2006-06-07 Sanyo Electric Co Heat pump device
EP1775531A1 (en) * 2005-10-12 2007-04-18 GTI Koudetechnik B.V. Apparatus and system for cooling and/or freezing and defrosting
JP2014224644A (en) * 2013-05-16 2014-12-04 シャープ株式会社 Heat pump device

Also Published As

Publication number Publication date
JPS5852148B2 (en) 1983-11-21

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