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Azimuth rotation static-pressure support system of tower solar thermal power generation heliostat

A tower-type solar energy, static pressure support technology, applied in the direction of fluid pressure actuation system components, servo meter circuits, fluid pressure actuation devices, etc. Control accuracy, unfavorable development prospects of solar thermal power generation, etc., to achieve the effect of good transmission characteristics, increased stiffness, and reduced driving torque

Active Publication Date: 2017-07-14
TIANJIN OULU HEAVY MACHINERY MFG
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  • Abstract
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AI Technical Summary

Problems solved by technology

It is understood that about 40% of the heliostats in the power station are not working or the positioning accuracy has not met the design requirements, and the overlapping accuracy of the light spots is greatly reduced, which leads to the reduction of the light-to-heat conversion efficiency of the heat-absorbing tower, which directly leads to Reduced power generation efficiency
[0003] After analysis, the main reason for the above problems is that the mechanical motion driving device of the heliostat relies on rack and pinion and worm gear, and then the motor provides power for transmission; The backlash causes the overall mechanical device to vibrate and wear, which leads to increased error and noise of the device, thus greatly reducing the control accuracy of the mechanical drive device
If the system is designed for wear compensation and to improve the machining accuracy of mechanical gear parts, it will need to bear a considerable cost burden, and high costs are not good for the development prospects of solar thermal power generation

Method used

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  • Azimuth rotation static-pressure support system of tower solar thermal power generation heliostat
  • Azimuth rotation static-pressure support system of tower solar thermal power generation heliostat
  • Azimuth rotation static-pressure support system of tower solar thermal power generation heliostat

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Embodiment Construction

[0028] The present invention will be further described in detail below with reference to the drawings and specific embodiments. The following embodiments are only descriptive and not restrictive, and the protection scope of the present invention cannot be limited by this.

[0029] A tower-type solar thermal power heliostat azimuth rotation static pressure support system. The tower-type solar thermal power heliostat includes a tower 11, a hydraulic motor reducer 12, an azimuth angle rotation unit and a pitch motion unit. A coaxially fixed hydraulic motor reducer in the frame, the output shaft end of the hydraulic motor reducer is coaxially fixed with an azimuth angle rotation unit, the upper end of the azimuth angle rotation unit is coaxially fixed with a pitch motion unit, and the hydraulic motor reducer drives the azimuth angle rotation The unit realizes the change and positioning of the direction angle of the heliostat, the pitch movement unit realizes the change and positioning...

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Abstract

The invention relates to an azimuth rotation static-pressure support system of a tower solar thermal power generation heliostat. The tower solar thermal power generation heliostat includes a tower frame, a hydraulic motor speed reducer, an azimuth rotating unit and a pitching motion unit. The system designs chute and slide ring structures, and injects oil to the lower bottom end surface of a slide ring and the upper flat end surface of a chute through a pressure reducing valve, a one-way valve and a capillary throttling valve, so that the lubricating performance is greatly improved, the rotating torque of the tower heliostat azimuth is reduced by 70% compared with the torque of a mechanical drive, the azimuth rotation driving torque is largely reduced, the sizes of the driving device and the hydraulic motor are both largely reduced, and the cost of the azimuth driving device is correspondingly reduced.

Description

Technical field [0001] The invention belongs to the technical field of solar thermal power generation, and relates to a tower-type solar thermal power heliostat, in particular to a tower-type solar thermal power heliostat with azimuth rotation static pressure support system. Background technique [0002] At present, most of the heliostat driving devices for tower solar thermal power generation are mechanical driving devices. For example, China's current domestic first set of 1MW power generation tower solar thermal power plant has been accepted by the Chinese Academy of Sciences in May 2014, and its location is located in Yanqing County. It is understood that about 40% of the heliostats in the power station are already inoperable or the positioning accuracy is not up to the design requirements, and the overlap accuracy of the light spots is greatly reduced, which leads to the reduction of the light-to-heat conversion efficiency of the heat absorption tower, which directly leads t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B11/08F15B13/04F15B13/16F15B21/08
CPCF15B11/08F15B13/04F15B13/16F15B21/08F15B2211/20569
Inventor 周晓亭
Owner TIANJIN OULU HEAVY MACHINERY MFG
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