Automatic-tracking double paraboloids light-concentrating, power-generating and heating system

Abstract

The invention discloses an automatic-tracking double paraboloids light-concentrating, power-generating and heating system, which comprises a big parabolic reflecting surface and a small parabolic reflecting surface. The concave surfaces of the two paraboloids are opposite to each other, and the normal axes are on a same straight line with focal points or focal lines superposed with each other. An infrared filter plate is arranged on or adjacent to the focal points of the two paraboloids; a photovoltaic electroplate is fixed on the bottom of the concave surface of the big parabolic reflecting surface; the photovoltaic electroplate is connected with a metal heat-conductive sheet; a cooling metal slim tube is attached to the metal heat-conductive sheet; the photovoltaic electroplate is connected with the rotating shafts of transverse direction and longitudinal direction via a mechanical supporting mechanism. A look-down detector is arranged in front of the small parabolic reflecting surface, and the spherical axis of the detector is parallel to the axis of the paraboloid; the look-down detector is connected with a controller which is connected with an actuating motor for controlling the rotation of transverse rotating shaft and the longitudinal rotating shaft. The system is reasonable in structure, solves the problems of much interference, low precision and poor stability of the existing sunlight tracking system, reduces detection error and improves tracking precision and stability.

Description

Technical field: [0001] The invention relates to the fields of solar energy utilization, sensor collection, sun tracking technology and the like, in particular to a solar power generation and heat supply system for power generation and heat utilization. Background technique: [0002] New energy is one of the most decisive technical fields in the world's economic development in the 21st century. Solar power generation does not produce any waste, no pollution, no noise, and no adverse effects on the environment. It is an ideal clean energy source, November 2007 Xu Zhilong, a master of Xiamen University, mentioned in his master's thesis "Development of Butterfly Photovoltaic Power Generation Concentrator" that installing a 1kW solar photovoltaic power generation system can reduce CO2 every year compared with fossil fuel power generation. 2 Emission 6002300kg, NO 2 Emission 16kg, SO 2 The emission is 9kg and the particles are 0.6kg. The promotion of concentrated solar power ge...

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Problems solved by technology

The patent application number is 200610088176.2 "self-radiating solar energy concentrating photovoltaic power generation device" although infrared rays are filtered out, but the shape of the filter is parabolic, the processing is relatively difficult, the consumption is large, and the economic cost is relatively high

[0006] Most of the concentrating power generation devices need to track the sun, but the sun tracking technology is always a big problem. The existing light detection and tracking technology mainly includes the position sensing detector PSD Technology, CCD technology, generally more complex, susceptible to cloud, dust and other external environment, and high cost, "2008 China Solar Photovoltaic Power Generation Industry Analysis and Investment Consulting Report" pointed out that the tracking of each kilowatt of concentrated power generation system The cost is about 16,000 yuan

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