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Polar-axis type solar automatic-tracking system for heating vacuum heat collector

A technology of automatic tracking and heat collectors, which is applied in solar heating systems, solar thermal energy, solar thermal power generation, etc., can solve the problems of increasing the power of the drive system, increasing manufacturing costs, and large wind resistance, and achieves simplified drive devices and wind resistance Enhanced performance and reduced manufacturing costs

Inactive Publication Date: 2011-05-18
吴艳频 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the application basis of the trough cylindrical reflector is the "paraxial ray" in the optical theory, and there is spherical aberration, which limits the maximum opening width of the trough cylindrical reflector
[0005] 3. Due to its own characteristics, the polar axis solar automatic tracking system is standing obliquely on the ground, so the wind resistance is relatively large, which requires the drive system to have more powerful power to drive the mirror to rotate, and increasing the power of the drive system will not only increase This increases the manufacturing cost and increases the energy consumption of the power generation system itself, which requires the design of a more reasonable drive system and gravity balance device for optimization.

Method used

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  • Polar-axis type solar automatic-tracking system for heating vacuum heat collector
  • Polar-axis type solar automatic-tracking system for heating vacuum heat collector
  • Polar-axis type solar automatic-tracking system for heating vacuum heat collector

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A polar axis solar automatic tracking system for heating a vacuum collector, comprising a support column 1, two columns 20, a transmission device 12 and a driving device 13. The bottom ends of the support column 1 and the two columns 20 both pass through bolts 30 Fixed on the ground 31, a self-lubricating bearing sleeve 2 is installed on the top of the support column 1, and the movable bracket 7 is composed of a cross bar 6, an inclined bar 9 and a right metal support 10, which are connected together. 9 is an obtuse angle, the right metal support 10 is fixed at the lower end of the diagonal rod, the upper end of the counterweight cable 5 is fixed to the right end of the crossbar 6, and the lower end of the counterweight cable 5 is equipped with a counterweight 4;

[0040] A cylindrical rotating shaft 3 is fixed on the right side of the top end of the inclined rod 9, and the right end of the rotating shaft 3 is inserted into the self-lubricating bearing sleeve 2 on the suppo...

Embodiment 2

[0051] The structure of embodiment 2 is basically the same as that of embodiment 1, except that:

[0052] The transmission device 12 is composed of a worm 40 and a worm wheel 41. The worm wheel 41 is installed at the left end of the rotating shaft 3. The worm 40 meshing with the worm wheel 41 is fixedly connected to the output shaft 14 of the driving device 13 through an output shaft connector, and the driving device 13 is fixed. The pallet 39 is driven by the driving device 13 to drive the tracker to work by driving the worm 40 and the worm gear 41.

[0053] The driving device 13 is a stepping motor. The counterweight 4 is a stone.

Embodiment 3

[0055] The structure of Embodiment 3 is basically the same as that of Embodiment 1, except that:

[0056] The transmission device 12 is composed of a piston rod 42 and a guide sleeve 43. The driving device 13 is fixed on the support plate 39. Driven by the driving device 13, the hydraulic cylinder in the guide sleeve 43 generates pressure, and the pressure makes the piston rod 42 in The guide sleeve 43 makes a linear movement back and forth to push the trough cylindrical mirror 35 to rotate.

[0057] The driving device 13 is a stepping motor, the stepping motor, the piston rod 42 and the guide sleeve 43 together constitute an electro-hydraulic push rod, and the counterweight 4 is a metal block.

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Abstract

The invention discloses a polar-axis type solar automatic-tracking system for heating a vacuum heat collector, which comprises a supporting post, two upright posts, a reflector, a transmission device and a driving device and is characterized in that: a movable bracket of the reflector comprises a rail, an inclined rod and a right metal supporting-foot frame which are connected into a whole, a reflector frame and the movable bracket are connected together through a plurality of metal supporting rods, a slot-type cylindrical-surface reflector is installed in the reflector frame, a cylindrical rotating shaft is assembled on the movable bracket, and the rotating shaft is inserted into a self-lubricating bearing sleeve on the supporting post; and the vacuum heat collector which is coaxial with the rotating shaft is installed between an upper fixed ring and a lower fixed ring. The polar-axis type solar automatic-tracking system has the advantages of operation stability, lightened weight, enhanced wind-resisting performance, ultrahigh performance-price ratio and easiness of realization of commercialization; and by adopting a novel polar-axis type one-dimensional tracking mode, the polar-axis type solar automatic-tracking system can realize tracking of a fixed target, improves the light concentrating ratio of the system and reduces the manufacturing cost of a mirror surface.

Description

Technical field [0001] The invention relates to solar light-to-heat conversion equipment, in particular to a polar axis type solar automatic tracking system for heating a vacuum collector. Background technique [0002] Polar axis solar automatic tracking system, its operating characteristics are: the trough parabolic mirror rotates around the polar axis to track the sun's hour angle, and then track the sun's declination angle by adjusting the pitch angle to complete two-dimensional tracking. Because the sun's declination changes very little, the conventional polar axis solar automatic tracking system simplifies the two-dimensional tracking to one-dimensional tracking by regularly adjusting the pitch angle of the tracking device. This method has high tracking accuracy and high solar energy utilization efficiency. , System hardware and low operating costs, etc., have good practical value, but two-dimensional tracking requires two motors, the equipment structure is complex, the syst...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24J2/14F24J2/46F24J2/52F24S23/74
CPCF24J2/14F24J2/5413Y02E10/45Y02E10/47F24S23/74F24S30/428
Inventor 吴艳频吴昊
Owner 吴艳频
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