Novel method for controlling two-dimensional tracking of sun according to time and application device
A technology of time control and tracking the sun, applied in the direction of control using feedback, etc., can solve problems such as the difficulty in building large-scale solar thermal power generation or concentrated photovoltaic power generation equipment
Inactive Publication Date: 2013-12-25
王新庚
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Problems solved by technology
The current conventional two-dimensional tracking of the sun (tracking the azimuth and altitude of the sun) method is difficult to be used in the construction of large-scale solar thermal power generation or concentrated photovoltaic power generation equipment due to the limitation of the mechanical structure of the implementation device.
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[0011] Adopt above-mentioned new tracking method of the present invention and implementing device principle, the designed large-scale high-temperature heat collecting equipment of tracking the sun according to time control, adopt block combination mode; Wherein the first composition unit (block), as attached figure 2 Show. The tubular fixed shaft 1 is placed horizontally from north to south, and a follower shaft 18 perpendicular thereto is installed thereon. The fixed shaft is driven by the worm gear reducer 2 . The trough-type parabolic cylindrical heat collectors 6 and 16 connected with the brackets 7 and 17, together with the brackets, rotate around the follower shaft under the pull of the pull rod 5; the pull rod is driven by the worm gear reducer 4 through the screw at the end of the pull rod . Through the two worm gear reducers, the running conditions of the fixed shaft 1 and the tie rod 5 are controlled according to time, and the projection height angle θ and the incl...
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The invention provides a novel method for two-dimensional tracking of the sun to overcome limitation of a conventional method for two-dimensional tracking of the sun. According to the method, all-directional tracking of the sun is achieved by tracking the projection height angle theta of the sun on the plane in the direction perpendicular to a horizontal southern direction and by tracing the included angle psi between the sunlight rays and the southern direction. A block combination method is adopted for a large-scale sun tracking heat collection device for implementing the method. Component units of the method mainly include a tubular fixing shaft 1, a servo shaft 18, a pull rod 5, a parabolic cylinder collector 8 and a parabolic cylinder collector 13, wherein the parabolic cylinder collector 8 and the parabolic cylinder collector 13 are connected with a bracket 6 and a bracket 17 respectively. The combination unit is linked with a next unit through a linking sleeve 11 and a flange 12, and linkage can be sequentially achieved as required. All the component units are all uniformly driven by a worm speed reducer 2 of a first unit and a worm speed reducer 4 of the first unit. The two worm speed reducers are controlled to operate according to time, and therefore the heat collectors can track the sun. A vacuum glass tube 6 and a vacuum glass tube 16 are placed on parabolic cylinder focusing coils respectively and coaxial with the servo shaft, and a heat conducting medium conveying pipeline passes through the tubular fixing shaft.
Description
[0001] Field [0002] The invention relates to a new time-controlled two-dimensional tracking sun method and implementing device, which are required in the field of solar energy utilization, and are especially suitable for creating large-scale solar thermal power generation or concentrating photovoltaic power generation industries. Background technique [0003] Tracking the sun is one of the key technologies for solar thermal power generation and concentrating photovoltaic power generation. The current conventional two-dimensional tracking of the sun (tracking the azimuth and altitude of the sun) method is difficult to be used in the construction of large-scale solar thermal power generation or concentrated photovoltaic power generation equipment due to the limitation of the mechanical structure of the implementation device. Contents of the invention [0004] In order to solve the limitations of the conventional two-dimensional sun tracking and the mechanical structure of it...
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IPC IPC(8): G05D3/12
Inventor 王新庚
Owner 王新庚