GB2577445A8 - Air conditioning device - Google Patents

Air conditioning device Download PDF

Info

Publication number
GB2577445A8
GB2577445A8 GB1918686.5A GB201918686A GB2577445A8 GB 2577445 A8 GB2577445 A8 GB 2577445A8 GB 201918686 A GB201918686 A GB 201918686A GB 2577445 A8 GB2577445 A8 GB 2577445A8
Authority
GB
United Kingdom
Prior art keywords
opening
closing valve
refrigerant
air conditioning
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
GB1918686.5A
Other versions
GB2577445B (en
GB201918686D0 (en
GB2577445A (en
Inventor
Kikuchi Shunsuke
Nakagawa Masahiko
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 Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Electric Corp filed Critical Mitsubishi Electric Corp
Publication of GB201918686D0 publication Critical patent/GB201918686D0/en
Publication of GB2577445A publication Critical patent/GB2577445A/en
Publication of GB2577445A8 publication Critical patent/GB2577445A8/en
Application granted granted Critical
Publication of GB2577445B publication Critical patent/GB2577445B/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
    • 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
    • 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
    • F24F11/32—Responding to malfunctions or emergencies
    • F24F11/36—Responding to malfunctions or emergencies to leakage of heat-exchange fluid
    • 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
    • F25B41/22—Disposition of valves, e.g. of on-off valves or flow control valves between evaporator and compressor
    • 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
    • F25B49/005—Arrangement or mounting of control or safety devices of safety devices
    • 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/12—Inflammable refrigerants
    • F25B2400/121—Inflammable refrigerants using R1234
    • 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/19—Pumping down refrigerant from one part of the cycle to another part of the cycle, e.g. when the cycle is changed from cooling to heating, or before a defrost cycle is started
    • 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
    • F25B2500/00—Problems to be solved
    • F25B2500/22—Preventing, detecting or repairing leaks of refrigeration fluids
    • F25B2500/222—Detecting refrigerant leaks
    • 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
    • F25B2600/021—Inverters therefor
    • 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
    • F25B2600/2519—On-off 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/19—Pressures
    • F25B2700/197—Pressures of the evaporator
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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)
  • Air Conditioning Control Device (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)

Abstract

This air conditioning device, in which an outdoor unit provided with a compressor and an indoor unit provided with an expansion valve are connected through a refrigerant pipe, is provided with: a first opening/closing valve provided on a refrigerant inlet side of the indoor unit; a second opening/closing unit provided on a refrigerant outlet side of the indoor unit; a state detection means which detects the state, inside the refrigerant pipe, between the first opening/closing valve and the second opening/closing valve; and a control device which controls the first opening/closing valve and the second opening/closing valve. The control device detects a leak of the refrigerant between the first opening/closing valve and the second opening/closing valve on the basis of the state detected by the state detection means when the first opening/closing valve and the second opening/closing valve are closed.
GB1918686.5A 2017-08-18 2017-08-18 Air-conditioning apparatus Active GB2577445B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2017/029584 WO2019035205A1 (en) 2017-08-18 2017-08-18 Air conditioning device

Publications (4)

Publication Number Publication Date
GB201918686D0 GB201918686D0 (en) 2020-01-29
GB2577445A GB2577445A (en) 2020-03-25
GB2577445A8 true GB2577445A8 (en) 2020-06-03
GB2577445B GB2577445B (en) 2021-08-11

Family

ID=65361888

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1918686.5A Active GB2577445B (en) 2017-08-18 2017-08-18 Air-conditioning apparatus

Country Status (4)

Country Link
JP (1) JP6785974B2 (en)
CN (1) CN111033154B (en)
GB (1) GB2577445B (en)
WO (1) WO2019035205A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116964394A (en) * 2021-03-22 2023-10-27 东芝开利株式会社 Air conditioner
US11578887B2 (en) * 2021-06-18 2023-02-14 Lennox Industries Inc. HVAC system leak detection
JP2024051923A (en) * 2022-09-30 2024-04-11 ダイキン工業株式会社 Air conditioner control system, information processing device, and air conditioner control method

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09152238A (en) * 1995-11-28 1997-06-10 Sanyo Electric Co Ltd Air conditioner
EP2570740B1 (en) * 2010-05-12 2019-02-27 Mitsubishi Electric Corporation Air conditioning apparatus
JP6079055B2 (en) * 2012-02-06 2017-02-15 ダイキン工業株式会社 Refrigeration equipment
WO2014127842A1 (en) * 2013-02-25 2014-08-28 Electrolux Appliances Aktiebolag A heat pump laundry drying machine and a method for operating a heat pump laundry drying machine
US9335078B1 (en) * 2013-03-26 2016-05-10 Gregory D. Buggs, Sr. Air conditioning system
CN203869825U (en) * 2014-06-05 2014-10-08 珠海格力电器股份有限公司 Detection system and air conditioner
US11460366B2 (en) * 2014-07-07 2022-10-04 Energizer Auto, Inc. Coupler and methods of use for assessment of refrigeration systems
CN105987548B (en) * 2015-02-03 2019-06-07 Tcl空调器(中山)有限公司 Refrigeration system method for detecting operation state and device
CN105004492B (en) * 2015-07-16 2017-10-27 珠海格力电器股份有限公司 The detection method and device of air-conditioner set refrigerant leakage
JP6191671B2 (en) * 2015-09-30 2017-09-06 ダイキン工業株式会社 Refrigerant leak location identification method

Also Published As

Publication number Publication date
GB2577445B (en) 2021-08-11
GB201918686D0 (en) 2020-01-29
CN111033154A (en) 2020-04-17
JP6785974B2 (en) 2020-11-18
JPWO2019035205A1 (en) 2020-03-26
WO2019035205A1 (en) 2019-02-21
CN111033154B (en) 2022-02-22
GB2577445A (en) 2020-03-25

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