The invention belongs to the technical field of
clean energy heating and cooling, and domestic hot water, and discloses a large split type air source
heat pump system. The split type air source
heat pump system comprises an air
heat exchanger, a circulation pump unit, an
evaporator, an anti-freezing solution water tank, a compressor, a condenser and a buffer water tank. The anti-freezing solutionwater tank is connected with the air
heat exchanger, the compressor is connected with the anti-freezing solution water tank, the condenser is connected with the compressor, and the buffer water tank is connected with the condenser. The compressor is connected with the air
heat exchanger through an anti-freezing solution feeding header
pipe. The air heat exchanger is connected with the anti-freezing solution water tank through an anti-freezing solution return header
pipe. The buffer water tank is connected with a cold and hot water return header
pipe and a cold and
hot water supply header pipe.According to the large split type air source
heat pump system, the air heat exchanger and a main
machine are arranged separately, heat exchange is carried out between the air heat exchanger and the heat pump main
machine through the anti-freezing intermediate heat exchange medium (
coolant), an independent circulation system is arranged for the intermediate heat exchange medium to carry out circulation, the heat pump main
machine can achieve long distance independent closed installation, vibration is weak, the
noise is low, frosting is not prone to happening,
energy consumption is low, and theheating scale is large.