EP4382829A8 - Refrigeration cycle device - Google Patents

Refrigeration cycle device Download PDF

Info

Publication number
EP4382829A8
EP4382829A8 EP22853035.8A EP22853035A EP4382829A8 EP 4382829 A8 EP4382829 A8 EP 4382829A8 EP 22853035 A EP22853035 A EP 22853035A EP 4382829 A8 EP4382829 A8 EP 4382829A8
Authority
EP
European Patent Office
Prior art keywords
refrigerant
value
flow rate
rate adjustment
adjustment units
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.)
Pending
Application number
EP22853035.8A
Other languages
German (de)
French (fr)
Other versions
EP4382829A4 (en
EP4382829A1 (en
Inventor
Takashi Maeda
Ryuhei Kaji
Tomoki HIROKAWA
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.)
Daikin Industries Ltd
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 EP4382829A1 publication Critical patent/EP4382829A1/en
Publication of EP4382829A8 publication Critical patent/EP4382829A8/en
Publication of EP4382829A4 publication Critical patent/EP4382829A4/en
Pending 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
    • F24F11/62—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
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
    • 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
    • F25B1/00—Compression machines, plants or systems with non-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
    • 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
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control 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
    • 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
    • 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
    • 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
    • F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
    • F25B5/02—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in parallel
    • 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
    • F25B6/00—Compression machines, plants or systems, with several condenser circuits
    • F25B6/02—Compression machines, plants or systems, with several condenser circuits arranged in parallel
    • 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
    • F25B2600/02—Compressor control
    • F25B2600/025—Compressor control by 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
    • F25B2600/00—Control issues
    • F25B2600/11—Fan speed control
    • 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
    • F25B2600/2511—Evaporator distribution 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
    • F25B2600/2515—Flow valves

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Signal Processing (AREA)
  • Air Conditioning Control Device (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)

Abstract

When a flow rate of a refrigerant is to be adjusted based on a temperature of the refrigerant flowing through refrigerant flow paths, there is an issue in that a temperature sensor is required for each of the refrigerant flow paths. A refrigeration cycle device includes a heat exchanger main body (331), a plurality of flow rate adjustment units (332a to 332i), and a control unit. The heat exchanger main body (331) has a plurality of refrigerant flow paths (333a to 333i) including a first refrigerant flow path (333) and a second refrigerant flow path (333). The flow rate adjustment units (332) adjust flow rates of a refrigerant flowing through the refrigerant flow paths (333). The control unit adjusts the flow rates of the refrigerant flowing through the refrigerant flow paths (333) by controlling opening degrees of the flow rate adjustment units (332). The control unit controls the opening degrees of the flow rate adjustment units (332) based on a first value or a second value. The first value is a value representing overall efficiency of the refrigeration cycle. The second value is a value representing overall efficiency of the heat exchanger main body (331).
EP22853035.8A 2021-08-05 2022-08-02 Refrigeration cycle device Pending EP4382829A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2021129044A JP7759207B2 (en) 2021-08-05 2021-08-05 Refrigeration cycle equipment
PCT/JP2022/029573 WO2023013616A1 (en) 2021-08-05 2022-08-02 Refrigeration cycle device

Publications (3)

Publication Number Publication Date
EP4382829A1 EP4382829A1 (en) 2024-06-12
EP4382829A8 true EP4382829A8 (en) 2024-07-24
EP4382829A4 EP4382829A4 (en) 2024-11-13

Family

ID=85155672

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22853035.8A Pending EP4382829A4 (en) 2021-08-05 2022-08-02 Refrigeration cycle device

Country Status (5)

Country Link
US (1) US20240175613A1 (en)
EP (1) EP4382829A4 (en)
JP (1) JP7759207B2 (en)
CN (1) CN117716184A (en)
WO (1) WO2023013616A1 (en)

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07229655A (en) * 1994-02-17 1995-08-29 Sanyo Electric Co Ltd Refrigerant flow rate controller for vapor compression type refrigerator
JP3936757B2 (en) * 1996-07-24 2007-06-27 東プレ株式会社 Air conditioner
JP2000018766A (en) * 1998-06-25 2000-01-18 Topre Corp Air conditioner
JP2007232265A (en) * 2006-02-28 2007-09-13 Daikin Ind Ltd Refrigeration equipment
JP4776511B2 (en) * 2006-11-24 2011-09-21 日立アプライアンス株式会社 Refrigeration equipment
JP2010107181A (en) * 2008-02-06 2010-05-13 Daikin Ind Ltd Refrigeration system
WO2009098900A1 (en) * 2008-02-06 2009-08-13 Daikin Industries, Ltd. Refrigeration system
JP5173857B2 (en) * 2009-01-14 2013-04-03 三菱電機株式会社 Air conditioner
JP5447968B2 (en) * 2010-03-31 2014-03-19 株式会社富士通ゼネラル Heat pump equipment
JP5593809B2 (en) * 2010-04-28 2014-09-24 東京電力株式会社 Industrial heating system and control method thereof
JP5202665B2 (en) * 2011-02-22 2013-06-05 株式会社東洋製作所 Refrigeration system
US8793003B2 (en) * 2011-03-31 2014-07-29 Mitsubishi Electric Research Laboratories, Inc. Controlling operations of vapor compression system
JP5855284B2 (en) * 2012-12-28 2016-02-09 三菱電機株式会社 Air conditioner
JP5874754B2 (en) * 2014-01-31 2016-03-02 ダイキン工業株式会社 Refrigeration equipment
JP2016044826A (en) * 2014-08-20 2016-04-04 日立アプライアンス株式会社 Refrigeration cycle equipment
CN108139120B (en) * 2015-10-21 2020-04-17 三菱电机株式会社 Air conditioner
CN111692721B (en) * 2019-03-15 2023-09-22 开利公司 Control method for air conditioning system

Also Published As

Publication number Publication date
WO2023013616A1 (en) 2023-02-09
EP4382829A4 (en) 2024-11-13
US20240175613A1 (en) 2024-05-30
CN117716184A (en) 2024-03-15
JP7759207B2 (en) 2025-10-23
JP2023023475A (en) 2023-02-16
EP4382829A1 (en) 2024-06-12

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