| 摘要 |
A hybrid heat pump capable of performing composite heat source control and four-season automatic switchover according to a microcontroller is provided to achieve the optimum thermal efficiency operation and maximize reliability of machine by using an automatic control algorithm based on PID(Proportional Integral Derivative) control. A hybrid heat pump capable of performing composite heat source control and four-season automatic switchover according to a microcontroller includes a compressor(100), a oil separator(110), a condenser(200), a liquid-gas heat exchanger(501), a liquid receiver(500), and an air-cooled evaporator(600). A circulating cycle is composed of a hot water solenoid valve(300), a hot water solenoid valve(301), a hot water solenoid valve(302), an air-cooled expansion valve(303), an air-cooled evaporator and a liquid-gas heat exchanger for simultaneously or respectively produce heating and hot water. A cycle is formed of a cold water evaporator(700), a cold water circulating pump(701), a cold water solenoid valve(400), a cold water solenoid valve(401), a cold water solenoid valve(402), a check valve(404) and a cold water expansion valve(403).
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