An energy collection system integrating solar photovoltaic light and heat

Abstract

The invention discloses a solar photo voltage / thermal collector energy collection system which comprises at least one energy collection device. Each energy collection device comprises a photovoltaic unit used for photovoltaic conversion and a photo-thermal unit used for photo-thermal conversion. Each photo-thermal unit comprises at least one layer of grating-shaped thermal collection plate. Each grating in each thermal collection plate is through in the longitudinal direction, so that a plurality of arc-shaped containing cavities corresponding to all the gratings are defined. Each photovoltaic unit is arranged on the surface of one side of the corresponding photo-thermal unit. The containing cavities of the thermal collection plates pass through a water circulating mechanism to be connected with a water storage mechanism. The photovoltaic units are connected with an electric power storage mechanism to form the energy collection system. The solar photo voltage / thermal collector energy collection system can be suitable for large-scale mounting and application, and has the effects of being light and easy to maintain, meanwhile consciously lowering water supply temperature, adopting low-temperature heating as a main target, and being high in technical adaptability, controllable in cost and good in practical effect.

Description

technical field [0001] The invention relates to an energy collection system used in the case of renewable energy utilization. More specifically, the present invention relates to a photovoltaic-photothermal-integrated energy collection system used in the case of solar energy used to supply building energy or agricultural production of clean energy. Background technique [0002] At present, the utilization of solar energy is generally divided into two ways: one is solar photovoltaic technology, which converts the radiant energy of solar energy into electrical energy, and then converts it into alternating current used in conventional power systems, and is used to supplement various electrical equipment. It is divided into polycrystalline silicon, monocrystalline silicon and amorphous silicon, as well as photovoltaic panels and thin-film batteries; the second is solar thermal technology, which converts solar radiation energy into heat energy and continues to use it to replace ot...

AI Technical Summary

Problems solved by technology

Therefore, the conversion efficiency of incident sunlight is limited, the structure of the equipment is complicated, and the equipment is bulky and the cost is too high.

Where lower water temperature is required, especially for the water supply of winter heating equipment such as floor heating systems, only a water temperature of 35°C-45°C is required. The water temperature provided by the above-mentioned equipment that mainly serves domestic hot water is too high. The disadvantages such as cost and installation limitations are quite obvious

[0010] From the perspective of China's energy structure, the current heating is still dominated by coal-fired. Despite decades of energy structure reforms and the introduction of various new technologies, it is still unable to effectively control the total amount of coal consumption. Various environmental problems caused by coal burning, such as pollution, carbon emissions, PM2.5, etc., have become a major obstacle to China's economic development; coupled with the controversial "Southern Heating" in southern China for many years, and the modern agriculture In the rapidly increasing agricultural energy consumption, the demand for temperature control of plant growth environment in winter is calling for the advent of a solar low-temperature heating equipment that can replace existing fossil energy in a large area, and has greater cost performance than existing technologies.

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