Static concentrating photovoltaic roof CHP system

Abstract

The invention discloses a static concentrating photovoltaic roof CHP system. The system is composed of a static concentrating photovoltaic roof part which is characterized in that the static concentrating photovoltaic roof part is integrated with an integrated concentrating photovoltaic and photothermal device comprising a backboard matching with the slope shape of a roof, a heat preservation and thermal insulation layer covering the backboard, heat-collecting layers embedded in the heat preservation and thermal insulation layers longitudinally and alternately, photovoltaic components and static condensers arranged on the surface of the heat-collecting layers, a support frame arranged around the backboard and a glass cover plate covering the support frame; photovoltaic components carries out electrical signal connection with an inverter through power supply line; heat-collecting pipes are arranged in the heat-collecting layers and a water-cooling apparatus is communicated with the heat-collecting pipes. Owning to a water cooling technology, the roof CHP system can increase the conversion efficiency of photovoltaic cells, provide electric energy and hot water and improve the overall utilization of solar energy; furthermore, the roof parts can reduce the utilization area of the photovoltaic cells by using a concentrating technology and the invention can replace a common roof board and combine with construction wall directly.

Description

technical field [0001] The invention relates to the building integration field of solar energy utilization, in particular to a roof heat and power cogeneration system with solar photovoltaic and light heat utilization. Background technique [0002] In recent years, with the shortage of global fossil energy and the increasingly serious environmental pollution, solar photovoltaic power generation technology has been widely used. Solar photovoltaic power generation technology can convert solar energy into clean electricity without causing environmental pollution. The best way to promote and utilize solar photovoltaic power generation is to connect it to the public grid and combine it with buildings, that is, photovoltaic building integration, which is also in line with the development direction of photovoltaic power generation in the national renewable energy development plan. [0003] In our country, the combination technology of solar photovoltaic power generation technology...

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Problems solved by technology

[0005] The above technology is only a single application of photovoltaic or photothermal technology, without integrated design, it can only provide hot water or electric energy; at the same time, the cooling method of photovoltaic cells adopts air cooling, and the cooling effect is not enough

[0006] The research on photovoltaic photothermal integration technology has also achieved results. The solar building photoelectric and photothermal composite device (ZL patent number: 02111582.6) provides us with a new type of composite roof that can provide users with hot water and power supply at the same time , the composite photovoltaic water heating building integrated component and its manufacturing process developed by the University of Science and Technology of China (application number: 200610114391.5) can be directly combined with the building wa

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