EP3537061A4 - Oil equalization control device, refrigerant circuit system, and oil equalization control method - Google Patents

Oil equalization control device, refrigerant circuit system, and oil equalization control method Download PDF

Info

Publication number
EP3537061A4
EP3537061A4 EP17885453.5A EP17885453A EP3537061A4 EP 3537061 A4 EP3537061 A4 EP 3537061A4 EP 17885453 A EP17885453 A EP 17885453A EP 3537061 A4 EP3537061 A4 EP 3537061A4
Authority
EP
European Patent Office
Prior art keywords
equalization control
oil equalization
refrigerant circuit
circuit system
control device
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.)
Withdrawn
Application number
EP17885453.5A
Other languages
German (de)
French (fr)
Other versions
EP3537061A1 (en
Inventor
Takahiro Kato
Tatsuhiro Yasuda
Masayuki Takigawa
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 Heavy Industries Thermal Systems Ltd
Original Assignee
Mitsubishi Heavy Industries Thermal Systems Ltd
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 Heavy Industries Thermal Systems Ltd filed Critical Mitsubishi Heavy Industries Thermal Systems Ltd
Publication of EP3537061A1 publication Critical patent/EP3537061A1/en
Publication of EP3537061A4 publication Critical patent/EP3537061A4/en
Withdrawn legal-status Critical Current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
    • F25B31/00—Compressor arrangements
    • F25B31/002—Lubrication
    • 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
    • F25B2600/00—Control issues
    • F25B2600/02—Compressor control
    • F25B2600/026—Compressor control by controlling unloaders
    • F25B2600/0261—Compressor control by controlling unloaders external to the compressor
    • 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/03—Oil level
    • 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/19—Pressures
    • F25B2700/193—Pressures of the compressor
    • F25B2700/1933—Suction pressures
    • 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F25B2700/2115—Temperatures of a compressor or the drive means therefor
    • F25B2700/21155—Temperatures of a compressor or the drive means therefor of the oil

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
EP17885453.5A 2016-12-28 2017-12-26 Oil equalization control device, refrigerant circuit system, and oil equalization control method Withdrawn EP3537061A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016256135A JP2018109452A (en) 2016-12-28 2016-12-28 Oil equalization control device, refrigerant circuit system, and oil equalization control method
PCT/JP2017/046672 WO2018124083A1 (en) 2016-12-28 2017-12-26 Oil equalization control device, refrigerant circuit system, and oil equalization control method

Publications (2)

Publication Number Publication Date
EP3537061A1 EP3537061A1 (en) 2019-09-11
EP3537061A4 true EP3537061A4 (en) 2019-10-16

Family

ID=62709456

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17885453.5A Withdrawn EP3537061A4 (en) 2016-12-28 2017-12-26 Oil equalization control device, refrigerant circuit system, and oil equalization control method

Country Status (4)

Country Link
EP (1) EP3537061A4 (en)
JP (1) JP2018109452A (en)
CN (1) CN110114622A (en)
WO (1) WO2018124083A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7393536B2 (en) * 2020-05-14 2023-12-06 三菱電機株式会社 Refrigeration equipment

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01203855A (en) * 1988-02-09 1989-08-16 Toshiba Corp Air conditioner
JPH01219372A (en) * 1988-02-26 1989-09-01 Toshiba Corp Equalized oiling control method for refrigerator
US4870831A (en) * 1988-02-09 1989-10-03 Kabushiki Kaisha Toshiba Multi-type air conditioner system with oil level control for parallel operated compressor therein
JP2005241070A (en) * 2004-02-25 2005-09-08 Mitsubishi Heavy Ind Ltd Method of controlling operation of compressor, and air conditioner having the same

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07318175A (en) * 1994-05-20 1995-12-08 Mitsubishi Electric Corp Freezing apparatus
KR100343639B1 (en) * 1994-06-29 2002-11-23 다이킨 고교 가부시키가이샤 Fuel Oil Operation Control System of Air Conditioning System
CN1188218A (en) * 1996-10-28 1998-07-22 松下冷机株式会社 Oil level equalizing system for plural compressors
JP5975742B2 (en) * 2012-06-05 2016-08-23 三菱電機株式会社 Refrigeration equipment

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01203855A (en) * 1988-02-09 1989-08-16 Toshiba Corp Air conditioner
US4870831A (en) * 1988-02-09 1989-10-03 Kabushiki Kaisha Toshiba Multi-type air conditioner system with oil level control for parallel operated compressor therein
JPH01219372A (en) * 1988-02-26 1989-09-01 Toshiba Corp Equalized oiling control method for refrigerator
JP2005241070A (en) * 2004-02-25 2005-09-08 Mitsubishi Heavy Ind Ltd Method of controlling operation of compressor, and air conditioner having the same

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2018124083A1 *

Also Published As

Publication number Publication date
WO2018124083A1 (en) 2018-07-05
CN110114622A (en) 2019-08-09
JP2018109452A (en) 2018-07-12
EP3537061A1 (en) 2019-09-11

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Legal Events

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Effective date: 20190607

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A4 Supplementary search report drawn up and despatched

Effective date: 20190917

RIC1 Information provided on ipc code assigned before grant

Ipc: F25B 31/00 20060101ALI20190911BHEP

Ipc: F25B 1/00 20060101AFI20190911BHEP

18W Application withdrawn

Effective date: 20190924