Solar air conditioner CCHP (Combined Cooling Heating and Power) system based on photovoltaic power generation system

Abstract

The invention provides a solar air conditioner CCHP (Combined Cooling Heating and Power) system based on a photovoltaic power generation system. The solar air conditioner CCHP system comprises the grid-connected photovoltaic power generation system, a multifunctional central air conditioner all-in-one machine, a battery plate cooling device and a central controller. On the basis of the solar photovoltaic power generation system and an electric compression type multifunctional central air conditioner unit, solar photovoltaic power generation is utilized for driving the central air conditioner unit, so that functions of a common air conditioner, a heat pump type air conditioner, an air source heat pump water heater and cold-hot water energy conversion are simultaneously realized in the same unit; the battery plate cooling device is capable of reducing the temperature of a battery piece by virtue of a liquid cooling mode, so that the power generation efficiency is effectively improved. The solar air conditioner CCHP system provided by the invention can be used for not only overcoming the problems of single function and high energy consumption of a traditional air conditioner and an air energy heat pump water heater, also solving the problem of low energy utilization rate of a common solar air conditioner, and fully utilizing the solar energy and air energy, has functions of cooling, heating, obtaining domestic hot water and storing power, can be used for CCHP of solar energy and has the advantages of high efficiency, energy conservation and environmental friendliness.

Description

Technical field [0001] The invention relates to a solar air-conditioning and hot water system, in particular to a high-efficiency, energy-saving and environment-friendly system that comprehensively applies solar energy and air energy to realize quadruple production of refrigeration, heating, sanitary hot water, and solar power generation. Background technique [0002] At present, one way of solar air-conditioning systems in my country is to convert solar heat into hot water for air-conditioning through lithium bromide absorption refrigerators. When the temperature of solar heat collection is below 90°C, the heat-to-cool conversion efficiency is generally only 0.5-0.8; Another way is to use solar photovoltaic power generation to drive the electric compression air conditioner with the generated electricity. The electric-cooling conversion efficiency coefficient of the electric compression air conditioner is 4-6. When the conversion efficiency of electric energy is 10%, the refri...

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Problems solved by technology

[0003] Aiming at the technical deficiencies of the current existing solar air-conditioning systems, such as low efficiency, too complicated system, and large heat collection area, this invention proposes a set of solar air-conditioning cogeneration system based on photovoltaic power generation system, which can maximize the efficiency of solar panels. Power generation efficiency, minimize the energy consumption of air-conditioning and hot water units, and achieve comprehensive utilization of solar energy and air energy in an optimal way

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