AIR SOURCE HEAT PUMP SPRAY DEFROSTING DEVICE BASED ON SUPER-HYDROPHOBIC FINNED TUBE HEAT EXCHANGER

摘要

An air source heat pump spray defrosting device based on a super-hydrophobic finned tube heat exchanger, comprising a refrigerant loop, a hot water loop, and an air loop. The refrigerant loop comprises a compressor (1), a four-way valve (2), a first heat exchanger (3), a first check valve (4-1), a second check valve (4-2), a third check valve (4-3), a fourth check valve (4-4), a first solenoid valve (5-1), a second solenoid valve (5-2), a liquid reservoir (6), a desiccant filter (7), an electronic expansion valve (8), a finned tube heat exchanger (9), a gas-liquid separator (10), and a heating-type water storage tank (12). The hot water loop comprises the heating-type water storage tank (12), a filter (13), a water pump (14), a nozzle (15), an electric heating tape (16), a water collection pan (17), a three-way valve (18), a temperature sensor (19), and a liquid level sensor (20), wherein a three-way valve first input end (18a), a three-way valve first output end (18b), and a three-way valve second output end (18c) are provided on the three-way valve (18). The air loop comprises the finned tube heat exchanger (9) and a fan (11). Said device spends less time and consume less heat for defrosting, so that continuous heat supply during the defrosting can be realized, and the heat supply time and the heat supply efficiency of the heat pump system are improved.