High concentration photovoltaic-city power combined drive photovoltaic and photothermal integrated dual-source heat pump energy system and running method thereof

Abstract

The invention provides a high concentration photovoltaic-city power combined drive photovoltaic and photothermal integrated air source and water source dual-source heat pump energy system. According to the high concentration photovoltaic-city power combined drive photovoltaic and photothermal integrated air source and water source dual-source heat pump energy system and a running method thereof, waste heat of a traditional high concentration photovoltaic module is collected to make domestic hot water or to be supplied to a dual-source heat pump. Under a heat supplying mode, when sunniness is enough, concentrated photovoltaic direct current directly drives a compressor of the heat pump to take heat from air, and the heat pump is made to perform heat production cycle to prepare the hot watertogether with a high concentration photovoltaic heat collecting system; when the sunniness is not enough, low-temperature water generated by the heat collecting system flows through a refrigerant-water plate type heat exchanger, and the refrigerant-water plate type heat exchanger is taken as a dual-source evaporator of the heat pump together with an air-cooling heat exchanger to make the heat pump run to produce heat; and under conditions such as rain or at night when electricity cannot be generated, the heat pump system is driven by city power. Under a refrigeration mode, the heat pump runsin reverse to convey cooling capacity to users, and the hot water is conveyed to the users through the heat collecting system. By means of the high concentration photovoltaic-city power combined drivephotovoltaic and photothermal integrated air source and water source dual-source heat pump energy system and the running method thereof, solar energy is comprehensively and efficiently utilized, andthe high concentration photovoltaic-city power combined drive photovoltaic and photothermal integrated air source and water source dual-source heat pump energy system and the running method thereof are stable in running, not affacted by sunshine and other weather, capable of saving energy and environmentally friendly and have obvious economic advantages.

Description

technical field [0001] The invention relates to a high-concentration photovoltaic-city electricity combined drive photovoltaic photothermal integrated air source-water source dual-source heat pump energy system and an operating method thereof. Background technique [0002] Traditional photovoltaic modules use crystalline silicon cells, which have low photoelectric conversion efficiency, and because of the low energy density of solar energy itself, the output power of modules per unit area is also low. The high-concentration photovoltaic module uses a Fresnel lens and cooperates with a tracking system to irradiate the concentrated sunlight to a high-conversion-efficiency multi-junction gallium arsenide photovoltaic cell to generate electricity. The energy density of the concentrated sunlight is very high, so the battery chip heats up severely, which seriously reduces its photoelectric conversion efficiency. This part of the heat can be utilized by a heat exchanger. [0003]...

AI Technical Summary

Problems solved by technology

[0003] Most of the existing solar water heaters use vacuum tubes or flat plate collectors, which not only produce insufficient heat, but also cause intermittent heat production due to sunshine conditions, which cannot guarantee the normal hot water demand of users

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