EP2426438A3 - Multi-unit air conditioning system - Google Patents

Multi-unit air conditioning system Download PDF

Info

Publication number
EP2426438A3
EP2426438A3 EP11178952.5A EP11178952A EP2426438A3 EP 2426438 A3 EP2426438 A3 EP 2426438A3 EP 11178952 A EP11178952 A EP 11178952A EP 2426438 A3 EP2426438 A3 EP 2426438A3
Authority
EP
European Patent Office
Prior art keywords
indoor
performs
heat exchanger
refrigerant
indoor unit
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
EP11178952.5A
Other languages
German (de)
French (fr)
Other versions
EP2426438A2 (en
EP2426438B1 (en
Inventor
Atsushi Enya
Shinichi Isozumi
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 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 Ltd filed Critical Mitsubishi Heavy Industries Ltd
Publication of EP2426438A2 publication Critical patent/EP2426438A2/en
Publication of EP2426438A3 publication Critical patent/EP2426438A3/en
Application granted granted Critical
Publication of EP2426438B1 publication Critical patent/EP2426438B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
    • F25B29/003—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the compression type system
    • 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
    • F25B2313/007—Compression machines, plants or systems with reversible cycle not otherwise provided for three pipes connecting the outdoor side to the indoor side with 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
    • F25B2313/023—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units
    • F25B2313/0233—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor 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
    • 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
    • F25B2313/0233—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units in parallel arrangements
    • F25B2313/02334—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units in parallel arrangements during heating

Landscapes

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

Abstract

A sufficient cooling capacity can be easily ensured with low costs even when an indoor unit that always performs a cooling operation is provided in an air conditioning system including a plurality of indoor units. An indoor unit 3c that always performs a cooling operation includes a gas pipe pressure control kit 100 including a plurality of electromagnetic valves 101a, 101b and 101c, controls opening/closing of the electromagnetic valves 101a, 101b and 101c according to a suction temperature of a refrigerant, and thus adjusts pressure loss of the refrigerant guided via an indoor heat exchanger 40 through a low-pressure gas pipe 7 to an outdoor unit 1 and adjusts evaporating pressure of the refrigerant in the indoor heat exchanger 40. This can prevent a suction temperature from dropping to below zero, and prevent the indoor heat exchanger 40 from freezing in an indoor unit 3c that performs the cooling operation even when an outside air temperature is low, the other indoor unit 3 performs the heating operation, and the outdoor unit functions as an evaporator.
Figure imgaf001
EP11178952.5A 2010-08-27 2011-08-26 Multi-unit air conditioning system Active EP2426438B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2010190396A JP5901107B2 (en) 2010-08-27 2010-08-27 Multi-type air conditioning system

Publications (3)

Publication Number Publication Date
EP2426438A2 EP2426438A2 (en) 2012-03-07
EP2426438A3 true EP2426438A3 (en) 2014-07-30
EP2426438B1 EP2426438B1 (en) 2019-07-10

Family

ID=44936156

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11178952.5A Active EP2426438B1 (en) 2010-08-27 2011-08-26 Multi-unit air conditioning system

Country Status (2)

Country Link
EP (1) EP2426438B1 (en)
JP (1) JP5901107B2 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101636328B1 (en) * 2009-12-22 2016-07-05 삼성전자주식회사 Heat Pump Apparatus and Outdoor Unit thereof
CN104061713A (en) * 2014-06-03 2014-09-24 东莞市新时代新能源科技有限公司 Temperature adjusting system
JP6608586B2 (en) * 2014-08-21 2019-11-20 株式会社ササクラ Cooling system and control method thereof
JP6248878B2 (en) * 2014-09-18 2017-12-20 株式会社富士通ゼネラル Air conditioner
JP6604051B2 (en) 2015-06-26 2019-11-13 ダイキン工業株式会社 Air conditioning system
JP6539560B2 (en) * 2015-10-13 2019-07-03 三菱重工サーマルシステムズ株式会社 Air conditioner
WO2017199276A1 (en) * 2016-05-16 2017-11-23 東芝キヤリア株式会社 Air conditioner
CN106931547B (en) * 2017-03-29 2020-01-07 广东美的暖通设备有限公司 Air conditioning system and control method thereof
CN107120809B (en) * 2017-06-13 2019-12-17 珠海格力电器股份有限公司 control method and device of air conditioning system and air conditioning system
KR102373851B1 (en) 2017-08-31 2022-03-14 삼성전자주식회사 Air conditioner
CN113531773B (en) * 2021-06-18 2022-11-15 宁波奥克斯电气股份有限公司 Multi-connected air conditioner fault detection method and device and multi-connected air conditioner

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006125761A (en) * 2004-10-29 2006-05-18 Mitsubishi Heavy Ind Ltd Indoor machine and air conditioner comprising the same
EP1677055A1 (en) * 2004-12-29 2006-07-05 LG Electronics, Inc. Multi-type air conditioner
EP1703230A2 (en) * 2005-02-17 2006-09-20 LG Electronics Inc. Multi type air-conditioner and control method thereof
EP1806549A1 (en) * 2006-01-09 2007-07-11 Samsung Electronics Co., Ltd. Air conditioner and method of controlling the same
JP2009210139A (en) * 2008-02-29 2009-09-17 Mitsubishi Heavy Ind Ltd Multiple-type air conditioner

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3062824B2 (en) * 1990-11-21 2000-07-12 株式会社日立製作所 Air conditioning system
JPH07180927A (en) * 1994-07-25 1995-07-18 Sanyo Electric Co Ltd Multi-chamber type cooling and heating device
JP4104218B2 (en) * 1998-08-28 2008-06-18 三洋電機株式会社 Air conditioner
JP4206870B2 (en) * 2003-08-29 2009-01-14 三菱電機株式会社 Refrigeration cycle equipment
JP2005300006A (en) * 2004-04-12 2005-10-27 Hitachi Ltd Multiple type air conditioner
JP4981411B2 (en) * 2006-11-01 2012-07-18 三菱重工業株式会社 Air conditioner
JP5132354B2 (en) * 2008-02-21 2013-01-30 三菱電機株式会社 Air conditioner
JP4767340B2 (en) * 2009-07-30 2011-09-07 三菱電機株式会社 Heat pump control device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006125761A (en) * 2004-10-29 2006-05-18 Mitsubishi Heavy Ind Ltd Indoor machine and air conditioner comprising the same
EP1677055A1 (en) * 2004-12-29 2006-07-05 LG Electronics, Inc. Multi-type air conditioner
EP1703230A2 (en) * 2005-02-17 2006-09-20 LG Electronics Inc. Multi type air-conditioner and control method thereof
EP1806549A1 (en) * 2006-01-09 2007-07-11 Samsung Electronics Co., Ltd. Air conditioner and method of controlling the same
JP2009210139A (en) * 2008-02-29 2009-09-17 Mitsubishi Heavy Ind Ltd Multiple-type air conditioner

Also Published As

Publication number Publication date
JP5901107B2 (en) 2016-04-06
JP2012047409A (en) 2012-03-08
EP2426438A2 (en) 2012-03-07
EP2426438B1 (en) 2019-07-10

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