EP1890093A3 - Oil management system for multiple condensers - Google Patents

Oil management system for multiple condensers Download PDF

Info

Publication number
EP1890093A3
EP1890093A3 EP07252844A EP07252844A EP1890093A3 EP 1890093 A3 EP1890093 A3 EP 1890093A3 EP 07252844 A EP07252844 A EP 07252844A EP 07252844 A EP07252844 A EP 07252844A EP 1890093 A3 EP1890093 A3 EP 1890093A3
Authority
EP
European Patent Office
Prior art keywords
oil
refrigerant
management system
oil management
multiple condensers
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.)
Ceased
Application number
EP07252844A
Other languages
German (de)
French (fr)
Other versions
EP1890093A2 (en
Inventor
Otaki Shizuo
Boon Siong Tee
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.)
Oyl Research & Development Centre Sdn Bhd
Original Assignee
Oyl Research & Development Centre Sdn Bhd
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 Oyl Research & Development Centre Sdn Bhd filed Critical Oyl Research & Development Centre Sdn Bhd
Publication of EP1890093A2 publication Critical patent/EP1890093A2/en
Publication of EP1890093A3 publication Critical patent/EP1890093A3/en
Ceased 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
    • F25B13/00—Compression machines, plants or systems, with reversible cycle
    • 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
    • F25B31/004—Lubrication oil recirculating arrangements
    • 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
    • F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
    • F25B43/02—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat for separating lubricants from the refrigerant
    • 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
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/023—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units
    • 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
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/025—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple outdoor units
    • 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
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/025—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple outdoor units
    • F25B2313/0253—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple outdoor units in parallel arrangements
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Power Engineering (AREA)
  • Air Conditioning Control Device (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
  • Compressor (AREA)

Abstract

An oil management system for multiple in a refrigerating system comprising of an oil separator (4) having plurality of inlets and outlets for separating refrigerant and oil, an oil accumulator (7) having plurality of inlets, outlets and thermistors for equalising the level of oil in each of the outdoor unit compressor (2) and a valve means (5) for regulating the flow of refrigerant to the outdoor heat-exchanger, receiving refrigerant from indoor heat-exchanger and oil accumulator (7) and distributing the refrigerant to compressors (2).
EP07252844A 2006-07-18 2007-07-18 Oil management system for multiple condensers Ceased EP1890093A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
MYPI20063426A MY165544A (en) 2006-07-18 2006-07-18 Oil management system for multiple condensers

Publications (2)

Publication Number Publication Date
EP1890093A2 EP1890093A2 (en) 2008-02-20
EP1890093A3 true EP1890093A3 (en) 2011-02-16

Family

ID=38603391

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07252844A Ceased EP1890093A3 (en) 2006-07-18 2007-07-18 Oil management system for multiple condensers

Country Status (5)

Country Link
EP (1) EP1890093A3 (en)
CN (1) CN101226014A (en)
AU (1) AU2007203328A1 (en)
MY (1) MY165544A (en)
SG (1) SG139673A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010113395A1 (en) * 2009-03-31 2010-10-07 三菱電機株式会社 Refrigeration device
CN103512280B (en) * 2013-04-17 2016-04-06 广东美芝制冷设备有限公司 The oily balance method of air-conditioner
JP6293647B2 (en) * 2014-11-21 2018-03-14 ヤンマー株式会社 heat pump
CN109595845B (en) 2017-09-29 2021-08-03 上海海立电器有限公司 Fresh air conditioning system and control method
CN111207531B (en) * 2020-01-13 2021-06-01 珠海格力电器股份有限公司 Air conditioning unit with reliable oil return and control method
CN113503653B (en) * 2021-08-04 2022-05-06 珠海格力电器股份有限公司 Multi-compressor refrigeration system and air conditioner

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2564957A1 (en) * 1984-05-23 1985-11-29 Electrolux Cr Sa Cooling unit with a new device for monitoring the oil level in the compressors
EP0672875A2 (en) * 1994-03-15 1995-09-20 Mitsubishi Denki Kabushiki Kaisha Air conditioning system, accumulator therefor and method of manufacturing the accumulator
US6125642A (en) * 1999-07-13 2000-10-03 Sporlan Valve Company Oil level control system
JP2001201200A (en) * 2000-01-21 2001-07-27 Toshiba Kyaria Kk Multi-split type air conditioner

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2564957A1 (en) * 1984-05-23 1985-11-29 Electrolux Cr Sa Cooling unit with a new device for monitoring the oil level in the compressors
EP0672875A2 (en) * 1994-03-15 1995-09-20 Mitsubishi Denki Kabushiki Kaisha Air conditioning system, accumulator therefor and method of manufacturing the accumulator
US6125642A (en) * 1999-07-13 2000-10-03 Sporlan Valve Company Oil level control system
JP2001201200A (en) * 2000-01-21 2001-07-27 Toshiba Kyaria Kk Multi-split type air conditioner

Also Published As

Publication number Publication date
CN101226014A (en) 2008-07-23
AU2007203328A1 (en) 2008-02-07
SG139673A1 (en) 2008-02-29
EP1890093A2 (en) 2008-02-20
MY165544A (en) 2018-04-03

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