Light splitting, absorbing and heat collecting assembly, photovoltaic heat and power cogeneration system and electric energy storage system

Abstract

The invention provides a light splitting, absorbing and heat collecting assembly, a photovoltaic heat and power cogeneration system and an electric energy storage system, and relates to the technical field of photovoltaic power generation. The light splitting, absorbing and heat collecting assembly comprises a heat collecting pipe and a light convergence device; the heat collecting pipe comprises a first pipe; a thermal insulation layer is arranged outside the first pipe; the light converging device is provided with a light collecting cavity for converging light; the light converged by the light collecting cavity is absorbed by the spectrum heat-conducting fluid medium, and the light which is not absorbed is emitted out of the heat collecting pipe. The photovoltaic heat and power cogeneration system comprises a collecting lens, a photovoltaic cell and a light splitting, absorbing and heat collecting assembly. The electric energy storage system comprises a photovoltaic combined heat and power supply system, a plurality of storage battery packs, an electric quantity monitoring assembly, a heating assembly and a power supply change-over switch. The light splitting, absorbing and heat collecting assembly, the photovoltaic heat and power cogeneration system and the electric energy storage system can generate high-temperature heat energy with higher heat energy quality, the comprehensive utilization rate of light energy is increased, and the utilization rate of electric energy is increased.

Description

technical field [0001] The invention relates to the technical field of photovoltaic power generation, in particular, to a spectroscopic absorption heat collecting component, a photovoltaic combined heat and power supply system and an electric energy storage system. Background technique [0002] Concentrated photovoltaic systems (CPV) technology is a power generation technology that uses optical elements such as lenses or mirrors to concentrate a large area of ​​sunlight on a small area and use the photovoltaic effect to generate electricity. The concentrated sunlight is projected on the solar panel, and high heat will be generated at the focus. On the one hand, heat loss will occur, and on the other hand, the surface temperature of the photovoltaic cell will rise sharply, and the local temperature of the photovoltaic cell will increase, which will cause the photovoltaic cell The photoelectric conversion efficiency is reduced. The output power will increase by 0.2% to 0.5% f...

AI Technical Summary

Problems solved by technology

[0003] The first purpose of the present invention is to provide a light-splitting and absorbing heat-collecting component to solve the technical problem of low comprehensive energy utilization of light in photovoltaic cogeneration systems

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