Summary of the invention
The objective of the invention is to consider the problems referred to above and a kind of switching that can realize between various modes is provided, improve aquifer yield and heat pump heating capacity under low temperature and the low irradiance, and can shorten the defrost time, defrosting is clean, all reaches the solar energy composite heat pump water heater of the efficiency of energy utilization of optimum under any environmental condition.The present invention can reduce user's use cost greatly, and easy to use.
Technical scheme of the present invention is: comprise compressor, fluid reservoir, cross valve, first magnetic valve, compound collection/the heat exchanger of solar energy, electric expansion valve, second magnetic valve, refrigerant pump, boiler, wherein first interface of cross valve is connected with compressor, second interface of cross valve is connected with fluid reservoir, and compressor is connected in series with fluid reservoir, the 3rd interface of cross valve is connected with an end of the compound collection/heat exchanger of solar energy and is connected with an end of first magnetic valve, the 4th interface of cross valve is connected with boiler and is connected with the other end of first magnetic valve, the other end of the compound collection/heat exchanger of solar energy is connected with an end of electric expansion valve, and the other end of electric expansion valve is connected with boiler by the parallel circuit of being made up of second magnetic valve and refrigerant pump.
The side of the compound collection/heat exchanger of above-mentioned solar energy also is equiped with the heat exchange fan.
The present invention is owing to adopt the structure that is formed by connecting by compressor, fluid reservoir, cross valve, magnetic valve, the compound collection/heat exchanger of solar energy, electric expansion valve, refrigerant pump, boiler, it has used compound collection/heat exchanger of solar energy and refrigerant pump, and make that compressor and refrigerant pump are connected in parallel, compressor and magnetic valve is connected in parallel, refrigerant pump and magnetic valve are connected in parallel, the present invention is with solar energy and the ingenious combination of air source heat pump system, can realize 4 kinds of operational modes, reach the purpose of energy-conserving and environment-protective.The present invention a kind ofly can reduce user's use cost greatly, and convenient and practical solar energy composite heat pump water heater.
The specific embodiment
Embodiment:
Structural representation of the present invention as shown in Figure 1, comprise compressor 1, fluid reservoir 2, cross valve 3, first magnetic valve 4, compound collection/the heat exchanger 5 of solar energy, electric expansion valve 6, second magnetic valve 7, refrigerant pump 8, boiler 9, heat exchange fan 10, wherein the first interface d of cross valve 3 is connected with compressor 1, the second interface s of cross valve 3 is connected with fluid reservoir 2, and compressor 1 is connected in series with fluid reservoir 2, the 3rd interface e of cross valve 3 is connected with an end of the compound collection/heat exchanger 5 of solar energy and is connected with an end of first magnetic valve 4, the 4th interface c of cross valve 3 is connected with boiler 9 and is connected with the other end of first magnetic valve 4, the other end of the compound collection/heat exchanger 5 of solar energy is connected with an end of electric expansion valve 6, and the other end of electric expansion valve 6 is connected with boiler 9 by the parallel circuit of being made up of second magnetic valve 7 and refrigerant pump 8.
In the present embodiment, the side of the compound collection/heat exchanger 5 of above-mentioned solar energy also is equiped with heat exchange fan 10.
When the present invention normally moves, following 4 kinds of patterns are arranged:
1, solar energy hot aqueous mode: cross valve 3 power down, first magnetic valve 4 connection that powers on, magnetic valve 7 power down disconnect, and compressor 1 power down is not worked, and refrigerant pump 8 works on power, and 10 power down of heat exchange fan are not worked.Refrigerant after electric expansion valve 6 throttlings, enters compound collection/heat exchanger 5 evaporations of solar energy by after refrigerant pump 8 superchargings, then by first magnetic valve 4, enters boiler 9 and adds hot water, then gets back to the suction side of refrigerant pump 8;
2, heat pump heats aqueous mode: cross valve 3 power down, 4 power down of first magnetic valve disconnect, the connection that powers on of second magnetic valve 7, and compressor 1 works on power, and refrigerant pump 8 power down are not worked, and heat exchange fan 10 works on power.Refrigerant is by after compressor 1 supercharging, behind d, the c end of blast pipe by cross valve 3, enter boiler 9 and add hot water, then by second magnetic valve 7, after electric expansion valve 6 throttlings, enter compound collection/heat exchanger 5 evaporations of solar energy, then e, the s by cross valve 3 holds, enter fluid reservoir 2, then get back to the suction end of compressor 1;
3, solar energy composite heat pump heats aqueous mode: cross valve 3 power down, 4 power down of first magnetic valve disconnect, the connection that powers on of second magnetic valve 7, and compressor 1 works on power, and refrigerant pump 8 power down are not worked, and heat exchange fan 10 determines whether to work on power according to sun intensity.Refrigerant is by after compressor 1 supercharging, behind d, the c end of blast pipe by cross valve 3, enter boiler 9 and add hot water, then by second magnetic valve 7, after electric expansion valve 6 throttlings, enter compound collection/heat exchanger 5 evaporations of solar energy, then e, the s by cross valve 3 holds, enter fluid reservoir 2, then get back to the suction end of compressor 1;
4, automatic defrosting pattern: cross valve 3 powers on, and 4 power down of first magnetic valve disconnect, the connection that powers on of second magnetic valve 7, and compressor 1 works on power, and refrigerant pump 8 power down are not worked, and 10 power down of heat exchange fan are not worked.Refrigerant is by after compressor 1 supercharging, behind d, the e end of blast pipe by cross valve 3, enter the compound collection/heat exchanger 5 defrosting condensations of solar energy, after then passing through electric expansion valve 6 throttlings, enter boiler 9 evaporations by magnetic valve 7, then, enter fluid reservoir 2, then get back to the suction end of compressor 1 by c, the s end of cross valve 3.