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In the history of the development on the basis of the Summary of solar assisted heat pump application technology, combined with the background of the subject application, a novel solar-assisted multi-function heat pump system (SAMHPS). The system will integrate both home heating and air conditioning and solar water heaters household energy-saving products, not only have they contain ordinary indoor refrigeration, the ordinary indoor heating and solar water heater operation mode, and with solar assisted indoor heating, heat pump water heater, indoor cooling and hot water system, water cooling and refrigeration defrost six more energy-efficient operation mode, dual heat source heating and hot water. The new SAMHPS operable valves are common solenoid valve has a simple structure, rationalization and components of economic, control, features, cleared the way for the establishment of cost savings and control system for its products of the system strong practicability. The core functionality of the new SAMHPS theoretical simulation, the establishment of the steady state simulation model is analyzed theoretically new SAMHPS core functionality mode - heat pump water heater, solar assisted heating mode with high efficiency energy-saving effect. Build their own experimental stage, limited to time reasons, experiments were carried out on ordinary indoor refrigeration, the ordinary indoor heating, indoor cooling and hot water system, heat pump water heaters and solar assisted indoor heating five functions mode, successfully achieved a smooth transition between the normal operation of the operation mode and operation mode, and carried out several experiments and data analysis. In the mode of the heat pump water heater in winter when the outdoor temperature is 7 ° C, 150L of water was heated from 10 ° C to 40 ° C with an average system coefficient of performance COP of about 2.2; solar assisted heating mode, the water temperature is balanced by the power of approximately 6.6 ° C. The 2500W, heating system coefficient of performance COP of 3.1 or more. Cooling, water heating and hot water defrost mode has a good energy saving. Each functional mode of experimental results confirmed the feasibility and reliability of the the new SAMHPS function mode into each other, but also reveals the different functional mode, and efficiency of SAMHPS system to improve various key factors. New SAMHPS stable running efficiently throughout the year, not only greatly improve the utilization of home heating and air conditioning and solar water heaters, and have a better season adaptability, especially for with rich solar energy and cooling, heating and hot water system of most of the eastern region, very broad prospects for application.
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