WO2009041450A1 - Freezer - Google Patents

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Publication number
WO2009041450A1
WO2009041450A1 PCT/JP2008/067220 JP2008067220W WO2009041450A1 WO 2009041450 A1 WO2009041450 A1 WO 2009041450A1 JP 2008067220 W JP2008067220 W JP 2008067220W WO 2009041450 A1 WO2009041450 A1 WO 2009041450A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat exchange
coolant
input power
power amount
sections
Prior art date
Application number
PCT/JP2008/067220
Other languages
French (fr)
Japanese (ja)
Inventor
Noriyuki Okuda
Takahiro Yamaguchi
Original Assignee
Daikin 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 Daikin Industries, Ltd. filed Critical Daikin Industries, Ltd.
Publication of WO2009041450A1 publication Critical patent/WO2009041450A1/en

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
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/08—Compressors specially adapted for separate outdoor units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • 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
    • F25B41/385—Dispositions with two or more expansion means arranged in parallel 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
    • 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
    • F25B49/027—Condenser control 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
    • F25B2313/025—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
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
    • F25B2313/02741—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using one four-way valve
    • 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
    • F25B2313/029—Control issues
    • F25B2313/0294—Control issues related to the outdoor fan, e.g. controlling speed
    • 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
    • F25B2313/031—Sensor arrangements
    • F25B2313/0315—Temperature sensors near the outdoor heat exchanger
    • 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)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

A heat exchanger for a freezer such as a heat exchanger of an outdoor device of an air conditioner is divided, corresponding to an upper path and a lower path, into a plurality of heat exchange sections including at least an upper stage heat exchange section where a coolant does not remain and a lower stage heat exchange section where the coolant remains. Each of branched pipes corresponding to the respective heat exchange sections has an electronic expansion valve and a heat exchange sensor and uses them to respectively adjust coolant pressures corresponding to the respective heat exchange sections. This can prevent lowering of the heat exchange performance during an intermediate load operation and reduce the total input power amount including an input power amount for driving a fan, which in turns saves energy.
PCT/JP2008/067220 2007-09-28 2008-09-25 Freezer WO2009041450A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007254391A JP2009085481A (en) 2007-09-28 2007-09-28 Freezer
JP2007-254391 2007-09-28

Publications (1)

Publication Number Publication Date
WO2009041450A1 true WO2009041450A1 (en) 2009-04-02

Family

ID=40511333

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/067220 WO2009041450A1 (en) 2007-09-28 2008-09-25 Freezer

Country Status (2)

Country Link
JP (1) JP2009085481A (en)
WO (1) WO2009041450A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2623891A4 (en) * 2010-09-30 2016-09-07 Daikin Ind Ltd Outdoor unit for refrigeration device
CN106839525A (en) * 2015-12-07 2017-06-13 同方人工环境有限公司 The wind heat exchanger structure and its control method of a kind of air cooled heat pump modular chiller
JP2019060512A (en) * 2017-09-25 2019-04-18 ダイキン工業株式会社 Air conditioner
JP2020003209A (en) * 2019-10-09 2020-01-09 ダイキン工業株式会社 Heat exchanger and air conditioner including the same
CN111637583A (en) * 2020-05-25 2020-09-08 宁波奥克斯电气股份有限公司 Condenser flow path structure, control method and air conditioner

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120125575A1 (en) * 2010-11-24 2012-05-24 Tai-Her Yang Cold/heat discharge with inner fluid to actuate the external fluid pump
JP5516466B2 (en) * 2011-03-16 2014-06-11 株式会社富士通ゼネラル Air conditioner outdoor unit
JP5889745B2 (en) * 2012-08-03 2016-03-22 日立アプライアンス株式会社 Refrigeration cycle apparatus, and refrigeration apparatus and air conditioner equipped with the refrigeration cycle apparatus
US10337780B2 (en) 2014-12-09 2019-07-02 Lennox Industries Inc. Variable refrigerant flow system operation in low ambient conditions
WO2016151655A1 (en) * 2015-03-20 2016-09-29 ジョンソンコントロールズ ヒタチ エア コンディショニング テクノロジー（ホンコン）リミテッド Air conditioning device and method for determining performance of same
WO2016203581A1 (en) * 2015-06-17 2016-12-22 三菱電機株式会社 Refrigerant circuit and air conditioner
JP2017106677A (en) * 2015-12-10 2017-06-15 東芝キヤリア株式会社 Refrigeration cycle device
CN106642405A (en) * 2016-11-02 2017-05-10 珠海格力电器股份有限公司 Air conditioner outdoor unit, air conditioner and defrosting control method of air conditioner outdoor unit
CN111023632A (en) * 2018-10-10 2020-04-17 维谛技术有限公司 Condenser and air conditioning system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03251661A (en) * 1990-02-28 1991-11-11 Daikin Ind Ltd Heat pump system
JPH0682130A (en) * 1992-08-31 1994-03-22 Sanyo Electric Co Ltd Abnormality detector for condenser of cooler
JP2003083624A (en) * 2001-09-12 2003-03-19 Mitsubishi Electric Corp Air conditioner
JP2005076933A (en) * 2003-08-29 2005-03-24 Mitsubishi Electric Corp Refrigeration cycle system
JP2006029734A (en) * 2004-07-21 2006-02-02 Matsushita Electric Ind Co Ltd Air conditioner

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH068703B2 (en) * 1987-11-13 1994-02-02 株式会社東芝 Air conditioner

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03251661A (en) * 1990-02-28 1991-11-11 Daikin Ind Ltd Heat pump system
JPH0682130A (en) * 1992-08-31 1994-03-22 Sanyo Electric Co Ltd Abnormality detector for condenser of cooler
JP2003083624A (en) * 2001-09-12 2003-03-19 Mitsubishi Electric Corp Air conditioner
JP2005076933A (en) * 2003-08-29 2005-03-24 Mitsubishi Electric Corp Refrigeration cycle system
JP2006029734A (en) * 2004-07-21 2006-02-02 Matsushita Electric Ind Co Ltd Air conditioner

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2623891A4 (en) * 2010-09-30 2016-09-07 Daikin Ind Ltd Outdoor unit for refrigeration device
CN106839525A (en) * 2015-12-07 2017-06-13 同方人工环境有限公司 The wind heat exchanger structure and its control method of a kind of air cooled heat pump modular chiller
JP2019060512A (en) * 2017-09-25 2019-04-18 ダイキン工業株式会社 Air conditioner
JP2020003209A (en) * 2019-10-09 2020-01-09 ダイキン工業株式会社 Heat exchanger and air conditioner including the same
CN111637583A (en) * 2020-05-25 2020-09-08 宁波奥克斯电气股份有限公司 Condenser flow path structure, control method and air conditioner
CN111637583B (en) * 2020-05-25 2022-06-14 宁波奥克斯电气股份有限公司 Condenser flow path structure, control method and air conditioner

Also Published As

Publication number Publication date
JP2009085481A (en) 2009-04-23

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