A Tracking Type Focusing High Power Concentrator
A high-power concentrating and point-focusing technology, which is applied in the field of solar energy utilization, can solve the problems of light energy conversion unit shading, low solar energy density, and difficulty in making large-diameter concentrators, so as to facilitate subsequent use and improve concentrating efficiency effect
Inactive Publication Date: 2016-12-28
JILIN UNIV
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Problems solved by technology
Solar energy is favored in all clean energy technologies. However, because solar energy has the characteristics of low energy density, periodic changes over time and random changes, and large regional differences, it is necessary to use solar energy to develop and utilize solar energy very effectively. How to track and add spotlight
Existing high-magnification concentrators mainly include transmissive concentrators and reflective concentrators. The former is difficult to make a large-aperture concentrator, while the latter adopts the reflective concentrator method so that the light energy conversion unit and the sun are in the concentrating position. The same side of the device will cause the problem that the light energy conversion unit blocks the sunlight
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Embodiment 1
[0019] Please refer to figure 1 and figure 2 , figure 1 The condensing part of the shown concentrator is made up of two partial parabolic reflectors 1, two partial ellipsoidal reflectors 2 and a light pipe 3. Convergence at the common focal point of the partial ellipsoidal reflector 2, and then reflected by the partial ellipsoidal reflector 2 to another focal point of the partial ellipsoidal reflector 2, the effect of the light pipe is to divert the The light converged at the common focal point of the partial ellipsoidal mirror 2 is transmitted to the other focal point of the partial ellipsoidal mirror 2 .
[0020] figure 2 Shown is the top view of the present invention, the top view projection of partial parabolic reflector 1 among the figure is fan-shaped (fan angle is close to 180 °) close to semicircle, and the top view of two partial ellipsoidal reflectors 2 has overlapping area.
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The invention provides a tracking point-focusing high-power condenser. The tracking point-focusing high-power condenser structurally comprises one or more local parabolic reflectors (1), one or more local ellipsoidal reflectors (2), a light guide tube (3), a tracker (4) and a support (5). Sunlight is converged at a common focus point of the local parabolic reflectors (1) and the local ellipsoidal reflectors (2) after being reflected by the local parabolic reflectors (1) and then is reflected to the other focus points of the local ellipsoidal reflectors (2) by the local ellipsoidal reflectors (2) to form a quasi parallel beam. According to the tracking point-focusing high-power condenser, light condensation is carried out in a secondary condensing mode, so that a small focal spot is obtained and simultaneously an emergent light beam is changed into small divergence angular light beams approximate to the parallel beam, and follow-up use is extremely convenient; moreover, through the tracking point-focusing high-power condenser, light condensation is achieved through reflection, the purpose of consequent focusing in the transmission and condensation process is achieved at the same time, light rays are not blocked, and the light-gathering efficiency is improved.
Description
technical field [0001] The invention belongs to the technical field of solar energy utilization, and in particular relates to a tracking type point-focusing high-magnification concentrator. Background technique [0002] Due to the severity of energy and environmental issues, countries are actively developing clean energy technologies. Solar energy is favored in all clean energy technologies. However, because solar energy has the characteristics of low energy density, periodic changes over time and random changes, and large regional differences, it is necessary to use solar energy to develop and utilize solar energy very effectively. The way to track and add spotlight. Existing high-magnification concentrators mainly include transmissive concentrators and reflective concentrators. The former is difficult to make a large-aperture concentrator, while the latter adopts the reflective concentrator method so that the light energy conversion unit and the sun are in the concentrati...
Claims
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IPC IPC(8): G02B19/00H02S40/22
CPCY02E10/52
Inventor 王广军龙国徽吴香英纪媛庞明俊汪东雪罗阳
Owner JILIN UNIV