Solar electric heating combined supply system for greenhouse

Abstract

The invention provides a solar electric heating combined supply system for a greenhouse. The system comprises frequency dividing concentrating photovoltaic photo-thermal assemblies and a heating system; the multiple frequency dividing concentrating photovoltaic photo-thermal assemblies are distributed on the top of the greenhouse; each frequency dividing concentrating photovoltaic photo-thermal assembly comprises a concentrator, a transparent flow channel, a concentrating solar cell assembly, a heat pipe and an assembly body, the assembly body is provided with the concentrator, and the concentrating solar cell assembly generates electricity through optical energy concentrated by the concentrator; the transparent flow channel is formed between the concentrator and the concentrating solar cell assembly, and the transparent flow channel is filled with a frequency-dividing heat collecting liquid; the frequency-dividing heat collecting liquid is connected with the heating system through a circulation system; the heat pipe is arranged at the bottom of the concentrating solar cell assembly. The solar electric heating combined supply system for the greenhouse has the advantages that the cost of the photovoltaic greenhouse is reduced, cleaning is efficient, the heating problem is solved, the full-spectrum efficient utilization of the solar energy is achieved, and the solar energy utilization rate of the photovoltaic greenhouse is increased.

Description

technical field [0001] The invention relates to the field of photovoltaics or the field of agricultural greenhouses, in particular to a combined solar power heating system for greenhouses. Background technique [0002] As a new type of agricultural facility, greenhouses can increase the growth rate and yield of plants in seasons that are not suitable for plant growth. Especially in northern regions, greenhouses have been widely used. For greenhouses, a certain amount of electric energy is required to make the indoor equipment operate normally, and heat energy is also required to maintain the temperature required for indoor plant growth. At present, photovoltaic greenhouse technology can use solar cells to provide electricity for the greenhouse, so that the greenhouse can operate independently from the grid, which is especially suitable for remote areas, but the solar cells are not only inefficient, but also increase the construction cost of the greenhouse; in addition, At p...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies in the prior art, the present invention provides a solar power-heat cogeneration system for greenhouses, which solves the problems of cost reduction and clean and efficient heating in photovoltaic greenhouses, and realizes the efficient utilization of full-spectrum solar energy and improves the efficiency of photovoltaic greenhouses. Solar energy utilization rate of greenhouse

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