Liquid return-preventing device and air conditioner

• Main Authors: LIU HEXIN, LIU YONGCHAO, CHENG XIANGXIN, ZHANG QIUPING, HUANG CHUN
• Format: Patent
• Language: Chinese; English
• Published: 22.11.2019
• Subjects: BLASTING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; HEATING; LIGHTING; LIQUEFACTION SOLIDIFICATION OF GASES; MANUFACTURE OR STORAGE OF ICE; MECHANICAL ENGINEERING; REFRIGERATION MACHINES, PLANTS OR SYSTEMS; REFRIGERATION OR COOLING; WEAPONS

The invention provides a liquid return-preventing device and an air conditioner, and relates to the technical field of the air conditioner. The liquid return-preventing device comprises an electromagnetic valve, a heat exchanger, a first pipeline and a second pipeline; a first inlet A of the heat exchanger communicates with a first outlet B, and a second inlet C communicates with a second outlet D; a third inlet E of the first pipeline is used for being connected onto an output pipeline of a compressor, a third outlet F is connected with the first inlet A, and the electromagnetic valve is arranged on the first pipeline; a fourth inlet G of the second pipeline is connected with the first outlet B, and a fourth outlet H is used for being connected onto the output pipeline of the compressor and is far away from the compressor relative to the third inlet E; and the second inlet C is used for being connected with an outlet of a gas and liquid separator, and the second outlet D is used for being connected with an i