Variable-irradiation and active-control groove-type solar light condensing and heat collecting device and method
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, tracking accuracy error, and inability to achieve scale, so as to reduce optical loss and heat dissipation loss , The effect of improving the efficiency of concentrating heat
Active Publication Date: 2014-10-22
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 variable-irradiation and active-control groove-type solar light condensing and heat collecting device which comprises a load-bearing rotating base and a groove-type solar heat collecting unit array fixedly connected on the load-bearing rotating base. The groove-type solar heat collecting unit array comprises multiple sets of groove-type solar heat collecting loops, each groove-type solar heat collecting loop comprises multiple groove-type solar heat collecting units in serial connection, the groove-type solar heat collecting units in each groove-type solar heat collecting loop are serially connected to be U-shaped, and the groove-type solar heat collecting unit array is driven by the load-bearing rotating base to horizontally rotate around a rotating point at the center of the bottom of the load-bearing rotating base. Adjusting of tracking axis azimuth can be realized, a function of realizing changing of the tracking axis azimuth from 0 to 9 degrees at different time periods each day can be realized, and a serial-parallel connection flow path adjusting and changing function is realized through a shutoff valve between two heat collecting pipe loops; two rows of parallelly-connected heat collecting pipes are changed to be serial connection in running, so that variable-irradiation heat radiating loss is reduced.
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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Login to View More IPC IPC(8): F24J2/12F24J2/24F24J2/54F24J2/46F24S10/70F24S23/71
CPCY02E10/44Y02E10/47
Inventor 金红光洪慧彭烁刘启斌
Owner INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI