A heat pump system for comprehensive utilization of photoelectricity, light and heat

Abstract

The invention provides a new type of heat pump system for comprehensive utilization of photoelectricity, light and heat, which includes a solar battery panel, a heat collection pump, a heat collection tank, a flowmeter of a solar water collection circuit, and an evaporation side pipeline of the heat collection tank connected end to end in sequence. The water pump on the evaporating side, the first plate and shell heat exchanger, and the water flow meter on the evaporating side are connected end-to-end in sequence, and the refrigerant pipeline of the first plate and shell heat exchanger is connected with the first three-way valve, frequency conversion The plate-shell heat exchanger, the liquid storage tank, the expansion valve and the second three-way valve are connected end to end; the other outlet of the first three-way valve and the other outlet of the second three-way valve are respectively connected to the refrigerant of the outdoor heat exchanger. The outlet is connected to the refrigerant inlet, and the water pipeline of the second plate and shell heat exchanger is connected end-to-end with the water pump on the condensation side, the domestic water tank and the water flow meter on the user side in turn. The invention can ensure the power generation efficiency of solar cells, and can stably provide hot water for living or heating throughout the year.

Description

technical field [0001] The invention relates to the technical field of solar energy recovery and utilization, and more specifically relates to a heat pump system for comprehensive utilization of photoelectricity, light and heat. Background technique [0002] At present, solar energy utilization mainly includes solar photovoltaic power generation and solar thermal utilization. In recent years, with the improvement of solar energy conversion efficiency, solar photovoltaic and photothermal utilization has developed rapidly. At the same time, due to the uneven distribution of solar energy resources, the cost of solar energy utilization equipment is high, and the efficiency of traditional solar photovoltaic power generation is low, which is not conducive to market promotion. [0003] The solar heat pump uses the waste heat generated by the solar panels in the process of power generation as the low-temperature heat source of the heat pump. In this process, the flowing working med...

AI Technical Summary

Problems solved by technology

However, since the air source heat pump uses air as the heat source in winter, the evaporation temperature will also decrease as the outdoor temperature decreases, and frost will form on the surface of the evaporator, which is extremely unfavorable to the heat pump.

With the formation of the frost layer, the heat transfer resistance of the evaporator increases, the evaporation temperature decreases, and the performance of the unit decreases

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