CN-117704653-B - Maintenance-free heliostat double-push-rod driving device

CN117704653BCN 117704653 BCN117704653 BCN 117704653BCN-117704653-B

Abstract

The invention discloses a maintenance-free heliostat double-push-rod driving device which comprises a supporting seat, an upright post, a first push-rod module and a second push-rod module, wherein the supporting seat is arranged at the top end of the upright post and is in rotary connection with the upright post, the first push-rod module is in rotary connection with the supporting seat and is connected with a heliostat module on the supporting seat and is used for driving the heliostat module to rotate, and the second push-rod module is fixedly arranged on the supporting seat and is used for driving the supporting seat to rotate when the heliostat module rotates to a preset position so that the mirror surface of the heliostat module faces downwards. The pitching angle of the heliostat module in the maintenance-free heliostat double-push-rod driving device is between 0 and 180 degrees, so that the mirror surface can be downward in a non-working state, deposition of dust, sand and the like is avoided, the mirror reflection efficiency is ensured, the cleaning frequency and the cleaning difficulty are reduced, and the maintenance-free heliostat double-push-rod driving device is simple in structure and easy for batch production.

Inventors

ZHANG WEI
YANG WENHUI
SUN XINGHAN
ZHANG GUOYONG
LIU YANG
Kong Kuilong

Assignees

中电建(西安)港航船舶科技有限公司

Dates

Publication Date: 20260512
Application Date: 20240115

Claims (4)

1. The maintenance-free heliostat double-push-rod driving device is characterized by comprising a supporting seat, an upright post, a first push-rod module and a second push-rod module; The supporting seat is arranged at the top end of the upright post and is rotationally connected with the upright post; The first push rod module is rotationally connected with the supporting seat and is connected with the heliostat module on the supporting seat and used for driving the heliostat module to rotate; the second push rod module is fixedly arranged on the supporting seat and is used for driving the supporting seat to rotate when the heliostat module rotates to a preset position so that the mirror surface of the heliostat module faces downwards; The first push rod module comprises a first telescopic push rod and a fixing unit, wherein the first telescopic push rod is rotationally connected with the bottom end of the side wall of the supporting seat; the heliostat module is fixed on the fixing unit; the first telescopic push rod comprises a first telescopic rod and a first sleeve, wherein the first telescopic rod is rotationally connected with the bottom end of the side wall of the supporting seat, the first sleeve is sleeved outside the first telescopic rod, and one end of the fixing unit is connected with the first sleeve through a first rotating piece; The support seat comprises a seat body and a working rotating shaft, wherein the working rotating shaft is arranged at the top end of the seat body; the second push rod module comprises a first extension rod, a second extension rod and a second telescopic push rod, wherein the first extension rod is arranged on one side of the supporting seat far away from the first push rod module; the second telescopic push rod comprises a second sleeve and a second telescopic rod; one end of the second telescopic rod extends into the second sleeve, and the other end of the second telescopic rod is in rotary connection with the second extension rod through a third rotary piece; The vertical column structure comprises a supporting seat, a vertical column, a first rotating connecting body, a second rotating connecting body and a back-off rotating shaft, wherein the first rotating connecting body is fixedly connected with the bottom of the supporting seat, the second rotating connecting body is fixed at the top end of the vertical column, and the back-off rotating shaft penetrates through the first rotating connecting body and the second rotating connecting body.
2. The maintenance-free heliostat dual-pushrod drive device of claim 1, wherein the heliostat module comprises a main beam circular tube and a heliostat; The main beam circular tube is fixedly arranged on the fixing unit; And the heliostat is fixed on the main beam circular tube.
3. The maintenance-free heliostat dual-pushrod driving device according to claim 2, wherein a side surface of the seat facing the first telescoping pushrod is an arcuate surface; the radian of the arc-shaped surface is matched with the radian of the main beam circular tube.
4. The maintenance-free heliostat dual-pushrod drive device of claim 1, further comprising an azimuth slewing reducer; the upright post comprises a rotating part and a fixed part which are divided from top to bottom along the axial direction of the upright post; The azimuth rotation speed reducer is arranged between the fixed part and the rotating part and is used for driving the rotating part to rotate in the horizontal direction.

Description

Maintenance-free heliostat double-push-rod driving device Technical Field The invention discloses a maintenance-free heliostat double-push-rod driving device, and belongs to the technical field of solar thermal power generation. Background Solar thermal power generation is one of the main ways of solar energy utilization. At present, tower type solar thermal power generation is mainly adopted, sunlight is reflected to a heat absorber on a tower by using heliostats tracking the sun in real time, and high-temperature and high-pressure steam is generated by heating heat absorbing working media in the heat absorber to drive a steam turbine generator unit to generate power. The pitching angle of the heliostat needs to be adjusted when the heliostat tracks the sun in real time, and the pitching angle of the heliostat in the prior art can only rotate between 0-90 degrees, so that the mirror surface of the heliostat is still upward in a non-working state, dust, sand and the like are arranged on the mirror surface, and particularly after rain, the heliostat is difficult to remove after being mixed with rainwater, the cleaning difficulty is increased, and the mirror reflection efficiency is reduced. Disclosure of Invention The application aims to provide a maintenance-free heliostat double-push-rod driving device, which aims to solve the technical problems that the existing heliostat structure has a small pitching angle range, a mirror face in a non-working state is upward, dust and sand are easy to deposit, and the mirror reflection efficiency is low. The invention provides a maintenance-free heliostat double-push-rod driving device which comprises a supporting seat, an upright post, a first push-rod module and a second push-rod module, wherein the upright post is arranged on the supporting seat; The supporting seat is arranged at the top end of the upright post and is rotationally connected with the upright post; The first push rod module is rotationally connected with the supporting seat and is connected with the heliostat module on the supporting seat and used for driving the heliostat module to rotate; The second push rod module is fixedly arranged on the supporting seat and is used for driving the supporting seat to rotate when the heliostat module rotates to a preset position, so that the mirror surface of the heliostat module faces downwards. Preferably, the first push rod module comprises a first telescopic push rod and a fixing unit; the first telescopic push rod is rotationally connected with the bottom end of the side wall of the supporting seat; One end of the fixing unit is rotationally connected with the first telescopic push rod, and the other end of the fixing unit is rotationally connected with the top end of the supporting seat; the heliostat module is fixed on the fixed unit. Preferably, the first telescopic push rod comprises a first telescopic rod and a first sleeve; the first telescopic rod is rotationally connected with the bottom end of the side wall of the supporting seat; The first sleeve is sleeved outside the first telescopic rod; one end of the fixing unit is connected with the first sleeve through a first rotating piece. Preferably, the supporting seat comprises a seat body and a working rotating shaft; The working rotating shaft is arranged at the top end of the seat body; The other end of the fixing unit is connected with the working rotating shaft. Preferably, the heliostat module comprises a main girder circular tube and a heliostat; The main beam circular tube is fixedly arranged on the fixing unit; And the heliostat is fixed on the main beam circular tube. Preferably, a side surface of the seat body facing the first telescopic push rod is an arc-shaped surface; the radian of the arc-shaped surface is matched with the radian of the main beam circular tube. Preferably, the second pushrod module includes a first extension rod, a second extension rod, and a second retractable pushrod; the first extension rod is arranged on one side of the supporting seat away from the first push rod module; the second extension rod is arranged on the upright post and is perpendicular to the axis of the upright post; the second telescopic push rod is respectively connected with the first extension rod and the second extension rod in a rotating way. Preferably, the second telescopic push rod comprises a second sleeve and a second telescopic rod; The second sleeve is rotationally connected with the first extension rod through a second rotating piece; One end of the second telescopic rod extends into the second sleeve, and the other end of the second telescopic rod is rotatably connected with the second extension rod through a third rotating piece. Preferably, the device further comprises a first rotary connector, a second rotary connector and a back-off rotary shaft; The first rotating connector is fixedly connected with the bottom of the supporting seat; The second rotating connector is fixed at the top