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WO2010131874A3 - Air conditioner and method for operating same - Google Patents

Air conditioner and method for operating same Download PDF

Info

Publication number
WO2010131874A3
WO2010131874A3 PCT/KR2010/002937 KR2010002937W WO2010131874A3 WO 2010131874 A3 WO2010131874 A3 WO 2010131874A3 KR 2010002937 W KR2010002937 W KR 2010002937W WO 2010131874 A3 WO2010131874 A3 WO 2010131874A3
Authority
WO
WIPO (PCT)
Prior art keywords
air conditioner
pressure side
chiller
accordance
cold water
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
PCT/KR2010/002937
Other languages
French (fr)
Korean (ko)
Other versions
WO2010131874A2 (en
Inventor
김홍열
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.)
LG Electronics Inc
Original Assignee
LG Electronics Inc
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 LG Electronics Inc filed Critical LG Electronics Inc
Priority to US13/319,668 priority Critical patent/US20120131935A1/en
Priority to CN201080025167.3A priority patent/CN102460029B/en
Priority to EP10775076.2A priority patent/EP2431677A4/en
Publication of WO2010131874A2 publication Critical patent/WO2010131874A2/en
Publication of WO2010131874A3 publication Critical patent/WO2010131874A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/044—Systems in which all treatment is given in the central station, i.e. all-air systems
    • F24F3/0442—Systems in which all treatment is given in the central station, i.e. all-air systems with volume control at a constant temperature
    • 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
    • F25B25/00—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00
    • F25B25/005—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00 using primary and secondary systems
    • 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
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F25B49/022—Compressor control arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/10—Pressure
    • F24F2140/12—Heat-exchange fluid pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/20—Heat-exchange fluid temperature
    • 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
    • F25B2700/1931—Discharge 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
    • F25B2700/19—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
    • F25B2700/2117—Temperatures of an evaporator
    • F25B2700/21171—Temperatures of an evaporator of the fluid cooled by the evaporator

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Signal Processing (AREA)
  • Air Conditioning Control Device (AREA)
  • Other Air-Conditioning Systems (AREA)

Abstract

An air conditioner according to the present invention comprises: a compressor, a condenser, an expander and an evaporator, water pipes connected to said evaporator to supply cold water, and a plurality of chillers to which respective water pipes are connected in parallel to each other. The temperature of the cold water of the chiller in operation from among the plurality of chillers is set in accordance with the difference between a high pressure side and a lower pressure side, and the capacity of the compressor is adjusted in accordance with the set temperature of the cold water. When the difference between the high pressure side and the lower pressure side is higher than a preset level for a preset time and there is a chiller which is not currently in operation, an operating command is transmitted to the chiller which is currently not in operation. Thus, the air conditioner of the present invention operates efficiently in accordance with loads, and power consumption is minimized.
PCT/KR2010/002937 2009-05-11 2010-05-07 Air conditioner and method for operating same Ceased WO2010131874A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US13/319,668 US20120131935A1 (en) 2009-05-11 2010-05-07 Air conditioner and method for operating same
CN201080025167.3A CN102460029B (en) 2009-05-11 2010-05-07 Air conditioner and method for operating same
EP10775076.2A EP2431677A4 (en) 2009-05-11 2010-05-07 Air conditioner and method for operating same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2009-0040916 2009-05-11
KR1020090040916A KR20100121961A (en) 2009-05-11 2009-05-11 Air conditioner

Publications (2)

Publication Number Publication Date
WO2010131874A2 WO2010131874A2 (en) 2010-11-18
WO2010131874A3 true WO2010131874A3 (en) 2011-01-27

Family

ID=43085432

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2010/002937 Ceased WO2010131874A2 (en) 2009-05-11 2010-05-07 Air conditioner and method for operating same

Country Status (5)

Country Link
US (1) US20120131935A1 (en)
EP (1) EP2431677A4 (en)
KR (1) KR20100121961A (en)
CN (1) CN102460029B (en)
WO (1) WO2010131874A2 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101854336B1 (en) * 2011-10-28 2018-06-14 엘지전자 주식회사 Air conditioner and method for controlling the same
CN102788005B (en) * 2012-08-02 2015-03-11 青岛海信日立空调系统有限公司 Method for controlling the operation of the compressors in optimized VRV air conditioning system and device thereof
CN103968478B (en) * 2013-02-01 2018-02-23 Lg电子株式会社 Cooling system and its control method
CN104279722B (en) * 2013-07-11 2017-04-12 盟立自动化股份有限公司 Control method of air conditioner energy-saving control device
GB2542310B (en) * 2014-06-19 2020-04-01 Mitsubishi Electric Corp Refrigeration cycle apparatus and refrigeration cycle system
JP2016008788A (en) * 2014-06-25 2016-01-18 ダイキン工業株式会社 Air conditioning system
CN106461276A (en) * 2014-07-02 2017-02-22 三菱电机株式会社 Heat source device and heat source system with the same
WO2016171177A1 (en) * 2015-04-21 2016-10-27 三菱電機株式会社 Heat source unit
CN106322641B (en) * 2015-07-06 2019-06-25 约克广州空调冷冻设备有限公司 Air-conditioner set control method, air-conditioner set, air conditioner group and air conditioner group control method
WO2017072832A1 (en) * 2015-10-26 2017-05-04 三菱電機株式会社 Air-conditioning system
CN106671728A (en) * 2015-11-06 2017-05-17 福特环球技术公司 Air conditioning system and control method thereof
JP2018063097A (en) * 2016-10-14 2018-04-19 三菱重工サーマルシステムズ株式会社 Air cooled chiller
TWI644062B (en) * 2017-06-26 2018-12-11 群光電能科技股份有限公司 Adjusting system
CN111578472B (en) * 2020-05-29 2022-03-22 广东美的制冷设备有限公司 Control method and device of air conditioner outdoor unit, air conditioner outdoor unit and air conditioner
CN117889529B (en) * 2024-01-10 2025-11-18 广东申菱环境系统股份有限公司 A 5G-based cooling system and its control method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0849928A (en) * 1994-08-05 1996-02-20 Daikin Ind Ltd Operation control equipment of air-conditioning system
JPH10318587A (en) * 1997-05-19 1998-12-04 Mitsubishi Electric Corp Control device for air conditioner

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4483152A (en) * 1983-07-18 1984-11-20 Butler Manufacturing Company Multiple chiller control method
JP3780784B2 (en) * 1999-11-25 2006-05-31 株式会社豊田自動織機 Control valve for air conditioner and variable capacity compressor
JP2001227798A (en) * 2000-02-14 2001-08-24 Yamatake Building Systems Co Ltd Cold water production system with outside air conditioner
CN1117951C (en) * 2001-03-20 2003-08-13 广东省科学院自动化工程研制中心 Intelligent power saving system for central air conditioner
JP3786133B1 (en) * 2005-03-03 2006-06-14 ダイキン工業株式会社 Air conditioner
CN101311639B (en) * 2007-05-25 2010-05-19 南京理工大学 Air conditioning condensation heat recovery and cooling tower free cooling integrated unit and its application system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0849928A (en) * 1994-08-05 1996-02-20 Daikin Ind Ltd Operation control equipment of air-conditioning system
JPH10318587A (en) * 1997-05-19 1998-12-04 Mitsubishi Electric Corp Control device for air conditioner

Also Published As

Publication number Publication date
EP2431677A4 (en) 2016-04-27
US20120131935A1 (en) 2012-05-31
KR20100121961A (en) 2010-11-19
EP2431677A2 (en) 2012-03-21
WO2010131874A2 (en) 2010-11-18
CN102460029A (en) 2012-05-16
CN102460029B (en) 2014-06-18

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