A trough-type solar concentrating heat collection device and method for active regulation and control of variable irradiance
A trough-type solar energy and concentrating heat collection technology, which is applied in the field of solar concentrating heat collection, can solve the problems of small scale of the platform, inability to realize scale, tracking accuracy error, etc., and achieve reduced optical loss and concentrating heat collection efficiency Improve and reduce the effect of heat dissipation loss
Active Publication Date: 2016-11-30
INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI
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The experimental results show that there is a large error in the tracking accuracy, and the scale of the platform is too small to achieve large-scale
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[0027] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.
[0028] Such as figure 1 and figure 2 as shown, figure 1 It is a structural schematic diagram of a trough-type solar concentrating and heat-collecting device for active regulation and control of variable radiation provided by the present invention, figure 2 It is a cross-sectional view of a trough-type solar energy concentrating and heat-collecting device for active regulation and control of variable radiation provided by the present invention, which includes: a load-bearing rotating base 2; and a trough-type solar heat-collecting unit array fixed on the load-bearing rotating base 2 1. The array of trough solar heat collecting units includes multiple sets of trough solar heat collecting loops, each set of trough solar ...
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The invention discloses a trough-type solar energy concentrating and heat-collecting device for active regulation and control of variable irradiance. The device comprises: a load-bearing rotating base; The array of solar heat collecting units includes multiple sets of trough-type solar heat-collecting loops, each set of trough-type solar heat-collecting loops includes a plurality of trough-type solar heat-collecting units connected in series, and in each set of trough-type solar heat-collecting loops, the multiple The trough-type solar heat collection units are connected in series to form a U shape; wherein, the trough-type solar heat collection unit array is driven by the load-bearing rotating base to rotate horizontally around the rotation point at the bottom center of the load-bearing rotating base. The invention can realize the adjustable azimuth angle of the tracking axis, so that the azimuth angle of the tracking axis can be changed from 0 to 90 degrees at different time periods every day, and the series-parallel process modulation function can be realized through the shut-off valve between the two heat collecting tube loops. Two rows of heat collectors connected in parallel are changed to run in series to reduce the heat dissipation loss of variable radiation.
Description
technical field [0001] The invention relates to the technical field of solar concentrated light and heat collection, in particular to a trough-type solar concentrated light and heat collection device and method for active regulation and control of variable radiation. Background technique [0002] Due to the discontinuous and unstable solar irradiation, the solar thermal power generation system often operates in deviation from the design conditions, causing the net solar power generation efficiency to deviate far from the peak efficiency when the irradiation is variable, resulting in low annual efficiency of solar thermal power generation. Therefore, how to improve the efficiency of concentrating and collecting heat under variable irradiance is the core of the research on solar thermal power generation technology. [0003] The traditional trough solar heat collection system adopts single-axis tracking, and the azimuth angle of the tracking axis is fixed, resulting in large op...
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IPC IPC(8): F24J2/12F24J2/24F24J2/54F24J2/46
Inventor 金红光洪慧彭烁刘启斌
Owner INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI