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Solar energy collection focusing tracking driving mechanism

A technology of solar heat collection and drive mechanism, which is applied in the directions of solar collectors, solar collector controllers, solar thermal energy, etc., can solve the problems of small torque and low precision, and achieves easy processing, high degree of automation, mechanical structure and so on. simple effect

Active Publication Date: 2013-02-27
GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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Problems solved by technology

The disadvantage of this structure is that the torque is small, it is not suitable for large-scale parabolic focusing device applications, and the accuracy is not high
[0005] Chinese invention patent "multi-light reflective parabola that can track the sun's rays, solar concentrating device in the same focal area", application number: 200910301657.0, proposes a driving mechanism that combines a stepping motor with a worm gear, the same The transmission mechanism is only suitable for the application of small solar heat collection and focusing equipment

Method used

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  • Solar energy collection focusing tracking driving mechanism

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Embodiment

[0035] 1. A trough-type solar concentrator tracking drive device

[0036] Figure 3(a)-(e) describes the sun-tracking movement process of the trough-type solar concentrator drive mechanism from east to west within one day. The installation direction of the trough parabolic solar concentrator is the north-south direction, and the east-west direction is tracked.

[0037]As shown in Figure 3(a), at sunrise, the altitude angle of the sun is 0, and the parabolic concentrator is facing due east as the initial position of the day. As the sun rises, the control system calculates the position of the sun every 1 minute and converts it into the angle of the parabolic concentrator. The horizontal position is defined as 0 degrees, the angle to the sun in the morning is a negative angle, and the angle to the sun in the afternoon The angle is a positive angle. Judging the rotation direction of the concentrator, sending instructions to control the first hydraulic cylinder 10 and the second h...

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Abstract

The invention discloses a solar energy collection focusing tracking driving mechanism which is applied to slot solar thermal power generation engineering. The mechanism is characterized by comprising a flange shaft, connection rods, pin rolls, a single piston hydraulic cylinder, a driving mechanism support frame, a parabolic condenser main shaft, and a parabolic condenser main shaft support frame. The flange shaft is concentrically connected with the parabolic condenser main shaft; the connection rods are connected with the piston hydraulic cylinder; and the pin rolls are connected with a connection piece and the hydraulic cylinder. The single piston hydraulic cylinder mainly comprises a cylinder barrel and a piston rod. Only one end of the single piston rod is provided with the piston rod, oil is pressed or returned by an oil pump, the piston rod is pushed to be extended or contracted from the cylinder barrel slowly, then the connection piece swings, and finally the flange shaft is rotated, so that a slot paraboloid is driven to rotate. The solar energy collection focusing tracking driving mechanism has a simple structure, rotates stably and is large in load capacity, and is usedas a slot heat collection paraboloid focusing tracking mechanism structure which has the characteristics of reliability and stability, and can be applied to a large-scale slot solar thermal power station.

Description

technical field [0001] The invention relates to a solar heat collection focus tracking drive mechanism, in particular to a hydraulic dual linear drive mechanism for focus tracking control of trough parabolic solar thermal power generation. Background technique [0002] Solar energy is an easy-to-obtain, inexhaustible, clean and non-polluting renewable energy source. It is of great strategic significance to develop and utilize solar energy and other renewable energy sources to ease the pressure on energy supply and the environment and promote sustainable economic development. Solar thermal utilization methods mainly include flat plate collectors, parabolic (line) focusing collectors, tower central collectors, dish concentrators, etc. [0003] Trough solar thermal power generation technology is a technology with large-scale capability and commercial application in the near future. The parabolic concentrator focuses and reflects sunlight to the linear medium-high temperature h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24J2/38F24J2/40F24S50/20
CPCY02E10/47
Inventor 舒杰吴昌宏关锐奇
Owner GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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