CA1068380A - Heat pump system with multi-stage centrifugal compressors - Google Patents

Heat pump system with multi-stage centrifugal compressors

Info

Publication number
CA1068380A
CA1068380A CA273,493A CA273493A CA1068380A CA 1068380 A CA1068380 A CA 1068380A CA 273493 A CA273493 A CA 273493A CA 1068380 A CA1068380 A CA 1068380A
Authority
CA
Canada
Prior art keywords
circuit
compressor
energization
switch
energized
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.)
Expired
Application number
CA273,493A
Other languages
English (en)
French (fr)
Inventor
William F. Evans
Raymond E. Shaffer
Carl R. Merola
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.)
Westinghouse Electric Corp
Original Assignee
Westinghouse 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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Application granted granted Critical
Publication of CA1068380A publication Critical patent/CA1068380A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/007—Installations or systems with two or more pumps or pump cylinders, wherein the flow-path through the stages can be changed, e.g. from series to parallel
    • 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
    • F25B1/00—Compression machines, plants or systems with non-reversible cycle
    • F25B1/10—Compression machines, plants or systems with non-reversible cycle with multi-stage compression
    • 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
    • F25B30/00—Heat pumps
    • F25B30/02—Heat pumps of the compression type
    • 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
    • F25B49/00—Arrangement or mounting of control or safety devices
    • 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
    • F25B2500/00—Problems to be solved
    • F25B2500/26—Problems to be solved characterised by the startup of the refrigeration cycle

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
CA273,493A 1976-03-12 1977-03-08 Heat pump system with multi-stage centrifugal compressors Expired CA1068380A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/666,277 US4033738A (en) 1976-03-12 1976-03-12 Heat pump system with multi-stage centrifugal compressors

Publications (1)

Publication Number Publication Date
CA1068380A true CA1068380A (en) 1979-12-18

Family

ID=24673555

Family Applications (1)

Application Number Title Priority Date Filing Date
CA273,493A Expired CA1068380A (en) 1976-03-12 1977-03-08 Heat pump system with multi-stage centrifugal compressors

Country Status (3)

Country Link
US (1) US4033738A (OSRAM)
JP (1) JPS52112155A (OSRAM)
CA (1) CA1068380A (OSRAM)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4454725A (en) * 1982-09-29 1984-06-19 Carrier Corporation Method and apparatus for integrating a supplemental heat source with staged compressors in a heat pump
ZA8562B (en) * 1984-01-11 1985-09-25 Copeland Corp Highly efficient flexible two-stage refrigeration system
US6931871B2 (en) * 2003-08-27 2005-08-23 Shaw Engineering Associates, Llc Boosted air source heat pump
US7299649B2 (en) * 2003-12-09 2007-11-27 Emerson Climate Technologies, Inc. Vapor injection system
US7028491B2 (en) * 2004-03-29 2006-04-18 Tecumseh Products Company Method and apparatus for reducing inrush current in a multi-stage compressor
US20080098760A1 (en) * 2006-10-30 2008-05-01 Electro Industries, Inc. Heat pump system and controls
US7849700B2 (en) * 2004-05-12 2010-12-14 Electro Industries, Inc. Heat pump with forced air heating regulated by withdrawal of heat to a radiant heating system
US7802441B2 (en) * 2004-05-12 2010-09-28 Electro Industries, Inc. Heat pump with accumulator at boost compressor output
TWI272365B (en) * 2004-09-13 2007-02-01 Daikin Ind Ltd Refrigerating device
US8037710B2 (en) * 2005-08-22 2011-10-18 Emerson Climate Technologies, Inc. Compressor with vapor injection system
US7275385B2 (en) * 2005-08-22 2007-10-02 Emerson Climate Technologies, Inc. Compressor with vapor injection system
FR2890418A1 (fr) 2005-09-02 2007-03-09 Atlas Copco Crepelle S A S Installation de compression haute pression a plusieurs etages
EP2244036A1 (en) * 2008-02-15 2010-10-27 Panasonic Corporation Refrigeration cycle device
EP2823240B1 (en) * 2012-03-08 2018-11-14 Danfoss A/S High pressure ratio multi-stage centrifugal compressor
CN109296526B (zh) * 2018-10-30 2024-04-05 苏州奥德高端装备股份有限公司 制冷机组断流保护结构
CN110579064A (zh) * 2019-09-23 2019-12-17 珠海格力电器股份有限公司 一种制冷系统及包含其的冷库
CN120303521A (zh) * 2022-10-10 2025-07-11 维谛有限公司 具有多级压缩机和螺旋外壳的热泵

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2177602A (en) * 1936-05-11 1939-10-24 Honeywell Regulator Co Air conditioning system
US2196687A (en) * 1937-01-16 1940-04-09 Honeywell Regulator Co Air conditioning system
US3599006A (en) * 1969-08-14 1971-08-10 Deltrol Corp Condition control device and system
US3668883A (en) * 1970-06-12 1972-06-13 John D Ruff Centrifugal heat pump with overload protection

Also Published As

Publication number Publication date
JPS5433612B2 (OSRAM) 1979-10-22
JPS52112155A (en) 1977-09-20
US4033738A (en) 1977-07-05

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