Air source heat pump defrosting device based on fast evaporation of liquid drops in initial process of frosting

• Main Authors: LIANG CAIHUA, ZHANG XIAOSONG, YANG MINGTAO, WANG FENG
• Format: Patent
• Language: Chinese; English
• Published: 24.09.2014
• 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 discloses an air source heat pump defrosting device based on fast evaporation of liquid drops in the initial process of frosting. The air source heat pump defrosting device comprises a refrigerant circuit and an air circuit, wherein the refrigerant circuit comprises a compressor, a four-way valve, an indoor heat exchanger, a first one-way valve, a second one-way valve, a third one-way valve, a fourth one-way valve, a first solenoid valve, a second solenoid valve, a third solenoid valve, a reservoir, a drying and filtering device, an electronic expansion valve, an outdoor heat exchanger, a gas-liquid separator and an air heat exchanger; the air circuit comprises the outdoor heat exchanger, the air heat exchanger, a first electric damper, a fan, a second electric damper, a third electric damper and an air supply nozzle. The air source heat pump defrosting device defrosts in a short time with low heat consumption, can perform defrosting and heating simultaneously, does not affect the thermal comfor