JP7218380B2 - 空気調和装置及び制御方法 - Google Patents
空気調和装置及び制御方法 Download PDFInfo
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- JP7218380B2 JP7218380B2 JP2020547545A JP2020547545A JP7218380B2 JP 7218380 B2 JP7218380 B2 JP 7218380B2 JP 2020547545 A JP2020547545 A JP 2020547545A JP 2020547545 A JP2020547545 A JP 2020547545A JP 7218380 B2 JP7218380 B2 JP 7218380B2
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- unit
- oil
- outdoor
- compressor
- indoor
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Classifications
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- 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
-
- 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
- F25B31/00—Compressor arrangements
- F25B31/002—Lubrication
-
- 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
- F25B2313/023—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units
-
- 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
-
- 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
- F25B2500/00—Problems to be solved
- F25B2500/16—Lubrication
Description
全ての室内機3の室内送風機331を停止させる(ステップS105)。そして、第2制御部44は、油面低下が検知された対象ユニットの運転モードを油回収運転に切り替える(ステップS106)。
Claims (5)
- 室内熱交換器と、室内膨張弁と、を有する1又は複数の室内機と、
室外熱交換器と、室外膨張弁と、四方弁と、圧縮機と、前記圧縮機に冷凍機油を供給可能な給油部と、を有する1又は複数の室外機と、
前記室内機及び前記室外機が暖房運転を行っているときに前記圧縮機における冷凍機油の油面低下の発生有無を検知する油面低下検知部と、
前記油面低下検知部により前記圧縮機における前記油面低下の発生が検知された場合、かつ前記給油部において前記圧縮機に供給可能な冷凍機油が残っていない場合に、前記四方弁を冷房運転時の状態に切り替える制御部と、
を備え、
自空気調和装置が複数の室外機を有する場合、
前記制御部は、前記油面低下の発生に応じて前記四方弁を冷房運転時の状態に切り替える際に、油面低下が発生していない室外機の動作を停止させる、
空気調和装置。 - 前記室内機は冷媒と室内気との熱交換を促進する送風機をさらに備え、
前記制御部は、前記油面低下の発生に応じて前記四方弁を冷房運転時の状態に切り替える際に、前記室内機の送風機の動作を停止させる、
請求項1に記載の空気調和装置。 - 前記制御部は、前記四方弁の切り替えから所定時間が経過した場合に、前記四方弁を暖房運転時の状態に切り替える、
請求項1または2に記載の空気調和装置。 - 前記制御部は、前記油面低下の発生に応じて前記四方弁を冷房運転時の状態に切り替えた後、前記室内機から供給される冷媒の一部又は全部がガス冷媒から液冷媒に変化した場合に、前記四方弁を暖房運転時の状態に切り替える、
請求項1から3のいずれか一項に記載の空気調和装置。 - 室内熱交換器と、室内膨張弁と、を有する1又は複数の室内機と、
室外熱交換器と、室外膨張弁と、四方弁と、圧縮機と、前記圧縮機に冷凍機油を供給可能な給油部と、を有する1又は複数の室外機と、
を備える空気調和装置の制御方法であって、
前記室内機及び前記室外機が暖房運転を行っているときに前記圧縮機における冷凍機油の油面低下の発生有無を検知する油面低下検知ステップと、
前記油面低下検知ステップにおいて、前記圧縮機における前記油面低下の発生が検知された場合、かつ前記給油部において前記圧縮機に供給可能な冷凍機油が残っていない場合に、前記四方弁を冷房運転時の状態に切り替える制御ステップと、
自空気調和装置が複数の室外機を有する場合、
前記油面低下の発生に応じて前記四方弁を冷房運転時の状態に切り替える際に、油面低下が発生していない室外機の動作を停止させるステップと、
を有する制御方法。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2018/034823 WO2020059079A1 (ja) | 2018-09-20 | 2018-09-20 | 空気調和装置及び制御方法 |
Publications (2)
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JPWO2020059079A1 JPWO2020059079A1 (ja) | 2021-08-30 |
JP7218380B2 true JP7218380B2 (ja) | 2023-02-06 |
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Country Status (4)
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---|---|
JP (1) | JP7218380B2 (ja) |
KR (1) | KR102532274B1 (ja) |
CN (1) | CN112739963B (ja) |
WO (1) | WO2020059079A1 (ja) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009150368A (ja) | 2007-12-22 | 2009-07-09 | Samsung Electronics Co Ltd | 均油機構 |
WO2013099047A1 (ja) | 2011-12-27 | 2013-07-04 | 三菱電機株式会社 | 空気調和装置 |
CN107218741A (zh) | 2017-05-11 | 2017-09-29 | 青岛海尔空调电子有限公司 | 一种多联机系统回油控制方法 |
JP2018004106A (ja) | 2016-06-28 | 2018-01-11 | 三菱電機株式会社 | 空気調和機 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3750145B2 (ja) * | 1995-01-31 | 2006-03-01 | ダイキン工業株式会社 | 冷凍装置 |
JPH10132406A (ja) * | 1996-10-31 | 1998-05-22 | Daikin Ind Ltd | 冷凍装置 |
CN103649653B (zh) * | 2011-07-14 | 2016-03-23 | 开利公司 | 具有油补偿的制冷回路 |
JP6230931B2 (ja) | 2014-02-20 | 2017-11-15 | 三菱重工サーマルシステムズ株式会社 | マルチ形空気調和機 |
CN205048775U (zh) * | 2015-09-01 | 2016-02-24 | 珠海格力电器股份有限公司 | 压缩机模块及多模块机组 |
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2018
- 2018-09-20 WO PCT/JP2018/034823 patent/WO2020059079A1/ja active Application Filing
- 2018-09-20 KR KR1020217007763A patent/KR102532274B1/ko active IP Right Grant
- 2018-09-20 CN CN201880097677.8A patent/CN112739963B/zh active Active
- 2018-09-20 JP JP2020547545A patent/JP7218380B2/ja active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009150368A (ja) | 2007-12-22 | 2009-07-09 | Samsung Electronics Co Ltd | 均油機構 |
WO2013099047A1 (ja) | 2011-12-27 | 2013-07-04 | 三菱電機株式会社 | 空気調和装置 |
JP2018004106A (ja) | 2016-06-28 | 2018-01-11 | 三菱電機株式会社 | 空気調和機 |
CN107218741A (zh) | 2017-05-11 | 2017-09-29 | 青岛海尔空调电子有限公司 | 一种多联机系统回油控制方法 |
Also Published As
Publication number | Publication date |
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CN112739963B (zh) | 2022-08-16 |
KR20210044843A (ko) | 2021-04-23 |
KR102532274B1 (ko) | 2023-05-11 |
JPWO2020059079A1 (ja) | 2021-08-30 |
CN112739963A (zh) | 2021-04-30 |
WO2020059079A1 (ja) | 2020-03-26 |
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