AIR CONDITIONER

• Main Authors: FUNADA KAZUYA, ITAKURA SHUNJI, FUJI TOSHIYUKI
• Format: Patent
• Language: English; Japanese
• Published: 01.11.2018
• Subjects: AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING; BLASTING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; HEATING; LIGHTING; LIQUEFACTION SOLIDIFICATION OF GASES; MANUFACTURE OR STORAGE OF ICE; MECHANICAL ENGINEERING; RANGES; REFRIGERATION MACHINES, PLANTS OR SYSTEMS; REFRIGERATION OR COOLING; VENTILATING; WEAPONS

To suppress generation of a disproportionation reaction in a refrigerant.SOLUTION: An air conditioner 1 has a refrigerant circuit 1a in which a compressor 10, an outdoor heat exchanger 23, a throttle device 24 and an indoor heat exchanger 51 are connected sequentially and in which a refrigerant circulates. The air conditioner 1 includes: an outdoor unit 2 including the compressor 10, the outdoor heat exchanger 23 and the throttle device 24; an indoor unit 5 including the indoor heat exchanger 51; and an outdoor unit control part 200. It also includes: a liquid injection connection pipe 46 for supplying a liquid refrigerant inside the refrigerant circuit 1a to a slide part of the compressor 10; and a solenoid valve 26 provided at the liquid injection connection pipe 46. The outdoor unit control part 200 controls opening/closing of the solenoid valve 26 so that a slide part temperature of the compressor 10 becomes a first threshold temperature in which a disproportionation reaction does not occur in the refrigerant.SELECTED DRAWING: Figure 1 【課題】冷媒に不均化反応が生じることを抑える。【解決手段】空気調和装置１は、圧縮機１０と室外熱交換器２３と絞り装置２４と室内熱交換器５１とが順次接続され、内部に冷媒が循環する冷媒回路１ａを有し、圧縮機１０と室外熱交換器２３と絞り装置２４を備えた室外機２と、室内熱交換器５１を備えた室内機５と、室外機制御部２００を有する空気調和装置１であって、冷媒回路１ａ内の液冷媒を圧縮機１０の摺動部に供給する液インジェクション連結管４６と、液インジェクション連結管４６に備えられた電磁弁２６を備え、室外機制御部２００は、圧縮機１０の摺動部温度が冷媒に不均化反応が発生しない温度である第１閾温度となるように電磁弁２６を開閉制御している。【選択図】図１