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EP2535669A3 - Multi-split type air conditioning system - Google Patents

Multi-split type air conditioning system Download PDF

Info

Publication number
EP2535669A3
EP2535669A3 EP12171591.6A EP12171591A EP2535669A3 EP 2535669 A3 EP2535669 A3 EP 2535669A3 EP 12171591 A EP12171591 A EP 12171591A EP 2535669 A3 EP2535669 A3 EP 2535669A3
Authority
EP
European Patent Office
Prior art keywords
outdoor
opening degree
electronic expansion
outdoor unit
unit electronic
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Withdrawn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
EP12171591.6A
Other languages
German (de)
French (fr)
Other versions
EP2535669A2 (en
Inventor
Makoto Sato
Kinichi Takemoto
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 EP2535669A2 publication Critical patent/EP2535669A2/en
Publication of EP2535669A3 publication Critical patent/EP2535669A3/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Withdrawn legal-status Critical Current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
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/39—Dispositions with two or more expansion means arranged in series, i.e. multi-stage expansion, on a refrigerant line leading to the same evaporator
    • 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
    • F25B45/00—Arrangements for charging or discharging 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
    • F25B2313/005—Outdoor unit expansion valves
    • 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
    • F25B2600/25—Control of valves
    • F25B2600/2513—Expansion valves

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

Provided is a multi-split type air conditioning system AC in which a plurality of indoor units 30 are connected in parallel, and which comprises a receiver 20 installed upstream of an outdoor heat exchanger 12 that serves as an evaporator in heating operation; and an outdoor unit electronic expansion valves 21 installed between the receiver 20 and the outdoor heat exchanger 12, wherein a control unit 50 is provided with an in-heating-operation opening degree control mode for controlling the outdoor unit electronic expansion valve 21, the in-heating-operation opening degree control mode comprising an open-loop control that performs an operation for a predetermined time period with an outdoor unit electronic expansion valve interim opening degree set corresponding to the actual number of rotation of a variable-power operated type compressor 11 determined by the number of the indoor units 30 being in operation and outdoor air condition; and an outdoor air temperature, a total heat exchange capacity value of the indoor heat exchangers 31, a number of indoor heat exchangers 31 that are stopped, suction superheating and discharge superheating of the variable-power operated type compressor 11 are employed as parameters for calculating the outdoor unit electronic expansion valve interim opening degree.
EP12171591.6A 2011-06-17 2012-06-12 Multi-split type air conditioning system Withdrawn EP2535669A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2011134778A JP5835958B2 (en) 2011-06-17 2011-06-17 Multi-type air conditioner

Publications (2)

Publication Number Publication Date
EP2535669A2 EP2535669A2 (en) 2012-12-19
EP2535669A3 true EP2535669A3 (en) 2014-04-16

Family

ID=46245929

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12171591.6A Withdrawn EP2535669A3 (en) 2011-06-17 2012-06-12 Multi-split type air conditioning system

Country Status (2)

Country Link
EP (1) EP2535669A3 (en)
JP (1) JP5835958B2 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104214905A (en) * 2013-05-31 2014-12-17 日立空调·家用电器株式会社 Air conditioner and controlling method thereof
CN104315658B (en) * 2014-10-23 2017-02-15 广东美的暖通设备有限公司 Air conditioning system control method and air conditioning system
CN105605753B (en) * 2016-01-26 2018-03-06 上海交通大学 Fresh air air-supply temperature control system based on multi-connected machine and new blower fan composite air conditioner system
WO2018053728A1 (en) * 2016-09-21 2018-03-29 广东美的暖通设备有限公司 Control method for multi-split air-conditioning system
CN106839271A (en) * 2016-12-30 2017-06-13 宁波奥克斯电气股份有限公司 Multi-online indoor machine heats the control method after temperature is shut down
CN111247377B (en) 2017-10-27 2022-05-10 三菱电机株式会社 Refrigeration cycle device
CN107676922A (en) * 2017-10-31 2018-02-09 广东美的暖通设备有限公司 The control method and air conditioner of air conditioner
CN110836433A (en) * 2018-08-16 2020-02-25 青岛海尔空调电子有限公司 Control method and control device for one-to-many air conditioner
CN109855245B (en) * 2019-02-13 2021-09-21 青岛海尔空调电子有限公司 Multi-split air conditioning system and heat exchange amount calculation method thereof
CN109974223B (en) * 2019-04-01 2020-10-02 珠海格力电器股份有限公司 Air conditioner control method and device for adjusting air conditioner work according to weather forecast
CN113587500B (en) * 2020-04-15 2024-08-16 青岛海尔智能技术研发有限公司 Electronic expansion valve control method and heat pump system
CN115988822A (en) * 2021-10-14 2023-04-18 中国移动通信集团设计院有限公司 Control method of refrigeration system, refrigeration system and storage medium
CN114353282B (en) * 2021-12-28 2023-06-20 青岛海尔空调电子有限公司 A kind of multi-connection control method and multi-connection
CN114688689B (en) * 2022-03-31 2023-08-11 安徽奥克斯智能电气有限公司 A method and device for adjusting the opening of an electronic expansion valve, and a multi-connected air conditioner
CN114811863B (en) * 2022-05-16 2023-06-02 美的集团武汉暖通设备有限公司 Control method of multi-split air conditioner, controller, air conditioner and medium

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5885041A (en) * 1981-11-13 1983-05-21 Daikin Ind Ltd Air conditioning system
US20020129612A1 (en) * 2001-03-16 2002-09-19 Mitsubishi Denki Kabushiki Kaisha Refrigeration cycle
JP2003106610A (en) * 2001-09-28 2003-04-09 Daikin Ind Ltd Refrigeration equipment
EP1526341A1 (en) * 2003-10-21 2005-04-27 Samsung Electronics Co., Ltd. Multi-unit air conditioner and method for controlling the same
US20070062207A1 (en) * 2005-09-21 2007-03-22 Masayuki Aiyama Heat source apparatus and method of starting the apparatus
EP1881277A1 (en) * 2005-04-18 2008-01-23 Daikin Industries, Ltd. Air conditioner

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0714772A (en) 1993-06-25 1995-01-17 Mitsubishi Cable Ind Ltd Production of nitrogen compound semiconductor
JPH07218008A (en) * 1994-02-01 1995-08-18 Hitachi Ltd Refrigeration cycle
JPH11218348A (en) * 1997-11-28 1999-08-10 Daikin Ind Ltd Operation control device for air conditioner
JP2002156166A (en) 2000-11-20 2002-05-31 Fujitsu General Ltd Multi-room air conditioner
JP2003106608A (en) 2001-09-26 2003-04-09 Mitsubishi Heavy Ind Ltd Air conditioner
JP4264208B2 (en) 2001-10-26 2009-05-13 三菱重工業株式会社 Air conditioner
EP2341295B1 (en) * 2008-10-29 2018-05-30 Mitsubishi Electric Corporation Air conditioner
JP2010210164A (en) 2009-03-11 2010-09-24 Panasonic Corp Method of controlling operation of multi-chamber type air conditioner

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5885041A (en) * 1981-11-13 1983-05-21 Daikin Ind Ltd Air conditioning system
US20020129612A1 (en) * 2001-03-16 2002-09-19 Mitsubishi Denki Kabushiki Kaisha Refrigeration cycle
JP2003106610A (en) * 2001-09-28 2003-04-09 Daikin Ind Ltd Refrigeration equipment
EP1526341A1 (en) * 2003-10-21 2005-04-27 Samsung Electronics Co., Ltd. Multi-unit air conditioner and method for controlling the same
EP1881277A1 (en) * 2005-04-18 2008-01-23 Daikin Industries, Ltd. Air conditioner
US20070062207A1 (en) * 2005-09-21 2007-03-22 Masayuki Aiyama Heat source apparatus and method of starting the apparatus

Also Published As

Publication number Publication date
JP5835958B2 (en) 2015-12-24
JP2013002741A (en) 2013-01-07
EP2535669A2 (en) 2012-12-19

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