CN113311876A - Heliostat driving device - Google Patents
Heliostat driving device Download PDFInfo
- Publication number
- CN113311876A CN113311876A CN202110540817.8A CN202110540817A CN113311876A CN 113311876 A CN113311876 A CN 113311876A CN 202110540817 A CN202110540817 A CN 202110540817A CN 113311876 A CN113311876 A CN 113311876A
- Authority
- CN
- China
- Prior art keywords
- base
- heliostat
- driving
- driving device
- oil cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D3/00—Control of position or direction
- G05D3/12—Control of position or direction using feedback
Abstract
The invention discloses a heliostat driving device, which comprises a horizontal rotation driving device and a pitching driving device, wherein the horizontal rotation driving device comprises a base and a base which is rotatably arranged on the base, an eccentric shaft is arranged on the base, 3 driving oil cylinders are uniformly arranged in the circumferential direction of the base, the cylinder bodies of the driving oil cylinders are hinged with the base through hinge seats, the end parts of piston rods of the driving oil cylinders are hinged with the eccentric shaft, the hinge seats connected with a first driving oil cylinder and a third driving oil cylinder are positioned in the same radial direction of the base, the distances between the second driving oil cylinder and the first driving oil cylinder and the third driving oil cylinder are equal, the eccentric distance of the eccentric shaft relative to the rotation center of the base is R, the rotation radius of the hinge seats on the base is R, and R/R is more than or equal to 0.5 and less than or equal to 0.8. The invention can simplify the structure of the heliostat driving device, ensure that the heliostat can track the movement of the sun and accurately reflect sunlight to the heat absorber, and is beneficial to improving the photoelectric conversion efficiency.
Description
Technical Field
The invention relates to the technical field of solar power generation, in particular to a heliostat driving device.
Background
With the rapid development of economy and the increasing enhancement of the environmental protection meaning of people, green energy sources such as solar power generation are increasingly popularized and popularized. The basic working principle of the solar thermal power generation system is as follows: the solar energy power generation device is characterized in that a heat collection tower is arranged in the center of a mirror field with a large area, a plurality of heliostats are arranged around the heat collection tower, the heliostats can track the position of the sun so as to reflect sunlight to a heat absorber of the mirror field central heat collection tower, the heat absorber absorbs illumination to heat an internal working medium, and then the working medium with high temperature is used for power generation. That is, the heliostat is an important component of the entire power plant, which is related to the efficiency of solar power generation.
In the prior art, the heliostat is usually arranged on a vertical upright column, and it can be understood that the position of the sun relative to the heliostat changes from the morning sun rising to the evening sun falling, that is, the incident angle of the sunlight on the heliostat changes, so that a corresponding driving mechanism needs to be arranged between the upright column and the heliostat, and the driving mechanism is controlled by a controller to act, so that the heliostat always reflects the sunlight onto the heat absorber of the heat collecting tower. The conventional heliostat driving mechanism includes a horizontal rotation driving device for driving and controlling a rotation angle of the heliostat in a horizontal plane and a pitch driving device for driving and controlling a pitch angle of the heliostat in a vertical plane. The rotation angle of the heliostat in the horizontal plane and the pitching angle of the heliostat in the vertical plane are respectively controlled by the horizontal rotation driving device and the pitching driving device, so that the heliostat can move along with the sun, and then sunlight is accurately reflected to a heat absorber of the heat collecting tower.
However, the conventional heliostat driving device has the following technical defects: first, in order to facilitate the control of the horizontal rotation angle, people usually drive the heliostat to rotate in the horizontal plane through a driving motor and a speed reducing mechanism. Since the sun relatively moves slowly, and the movement angle from morning to evening does not exceed 360 degrees, the speed reduction mechanism needs to have a very large speed reduction ratio, which results in a complicated structure of the heliostat drive device and high manufacturing cost.
In addition, because the mirror field area is big, the heliostat is far away to mirror field central authorities heat collection tower position, and the sunlight that the heliostat reflects on the heat absorber of heat collection tower can form great decay, that is to say, a considerable portion of light energy has been wasted in transmission process to be unfavorable for promoting photoelectric conversion efficiency.
Disclosure of Invention
The invention aims to provide a heliostat driving device, which can simplify the structure of the heliostat driving device, ensure that a heliostat can track the movement of the sun and accurately reflect sunlight to a heat absorber, and is beneficial to improving the photoelectric conversion efficiency.
In order to achieve the purpose, the invention adopts the following technical scheme:
a heliostat driving device comprises a horizontal rotation driving device and a pitching driving device, wherein the horizontal rotation driving device is used for driving a heliostat to rotate horizontally, the pitching driving device is used for driving the heliostat to rotate in a vertical plane, the horizontal rotation driving device comprises a base and a base, the base is arranged on a heliostat upright column, the base is rotatably arranged on the base and is used for being connected with the heliostat, an eccentric shaft deviating from the rotation axis of the base is arranged on the base, 3 driving oil cylinders are uniformly arranged in the circumferential direction of the base, the cylinder body of each driving oil cylinder is hinged with the base through a hinged seat, the end part of a piston rod of each driving oil cylinder is hinged with the eccentric shaft, the hinged seats connected with the first driving oil cylinder and the third driving oil cylinder are positioned in the same radial direction of the base, the distance between the second driving oil cylinder and the first driving oil cylinder and the distance between the second driving oil cylinder and the third driving oil cylinder are equal, the eccentric distance between the eccentric shaft and the rotation center of the base is R, and the rotation radius of the hinged seat on the base is R, and R/R is more than or equal to 0.5 and less than or equal to 0.8.
Firstly, the invention comprises a horizontal rotation driving device and a pitching driving device, wherein the horizontal rotation driving device is used for driving the horizontal rotation of the heliostat, and the pitching driving device is used for driving the pitching rotation of the heliostat in a vertical plane, so that the heliostat can track the sunlight at any time according to the geographical latitude of the heliostat, and the sunlight is reflected to a heat absorber of the heat collecting tower.
Unlike the prior art, the heliostat of the invention is horizontally rotated by using 3 driving cylinder drivers. One end of the driving oil cylinder is hinged on a base connected with the heliostat, and the other end of the driving oil cylinder is hinged on an eccentric shaft eccentrically arranged with the base. Therefore, when the controller makes the piston rods of the 3 driving oil cylinders extend and retract in sequence, acting force deviating from the rotation center can be formed on the base, the acting force can be decomposed into radial force passing through the rotation center of the base and driving force along the tangential direction of the rotation circle of the base, and the driving force forms torque on the base, so that the base can be driven to rotate relative to the base.
It can be understood that the driving oil cylinder can output extremely large acting force and can act at intervals. That is to say, the heliostat can slowly rotate according to the set program through 3 driving oil cylinders, the structure is simple, the rotation angle of the unit time can be randomly adjusted and controlled, and the maximum torque can be output.
Particularly, in the 3 driving oil cylinders, the hinged seats connected with the first driving oil cylinder and the third driving oil cylinder are positioned in the same radial direction of the base, and the distance between the second driving oil cylinder and the first driving oil cylinder is equal to that between the second driving oil cylinder and the third driving oil cylinder. Therefore, when the eccentric shaft is positioned between the first driving oil cylinder and the third driving oil cylinder and is close to one side of the second driving oil cylinder, the first driving oil cylinder can extend firstly, and the maximum torque is generated on the base; along with the rotation of the base, the torque formed by the first driving oil cylinder is gradually reduced, and at the moment, the second driving oil cylinder extends, so that the base is subjected to complementary torque; when the base rotates to the position that the first driving oil cylinder is positioned in the radial direction of the base, the first driving oil cylinder and the third driving oil cylinder are positioned at the dead point position, the tangential component force is zero, and the second driving oil cylinder generates the maximum torque to the base at the moment; when the base rotates to the side that the eccentric shaft is positioned between the first driving oil cylinder and the third driving oil cylinder and is far away from the second driving oil cylinder, the torque generated by the second driving oil cylinder to the base is gradually reduced, and the torque generated by the first driving oil cylinder and the third driving oil cylinder to the base is gradually increased. That is, 3 drive cylinders can provide a substantially constant torque to the base.
In addition, the invention enables the eccentric shaft to form the following relationship relative to the eccentricity R of the rotation center of the base and the rotation radius R of the hinged seat on the base; R/R is more than or equal to 0.5 and less than or equal to 0.8, so that the driving oil cylinder can form the torque as large as possible on the base.
When R/R is less than 0.5, under the driving oil cylinder with the same size, the torque formed on the base can be reduced; when R/R is larger than 0.8, the fluctuation range of the torque formed by the second driving oil cylinder to the base can be increased, and the stable rotation of the heliostat is not facilitated.
Preferably, a supporting inner ring is fixed on the base, a supporting outer ring fixed on the base is arranged outside the supporting inner ring, semi-sliding grooves with semicircular cross sections are respectively arranged on the outer side of the supporting inner ring and the inner side of the supporting outer ring, the two semi-sliding grooves are spliced to form sliding grooves, a plurality of balls are arranged in the sliding grooves, so that the supporting inner ring and the supporting outer ring are rotationally connected, a leading-in groove vertically penetrating through the sliding grooves is arranged at the splicing seam of the upper sides of the supporting inner ring and the supporting outer ring, and a sealing plug is arranged at the opening of the leading-in groove.
According to the invention, the supporting inner ring is fixedly arranged on the base, the supporting outer ring is fixedly arranged on the base, and the ball is arranged between the supporting inner ring and the supporting outer ring, so that the base and the base can form bearing rotation connection, and the friction resistance of the base and the heliostat during rotation is greatly reduced.
Particularly, the guiding grooves which vertically penetrate through the sliding grooves are formed in the splicing seams of the upper sides of the inner bearing ring and the outer bearing ring, so that when the inner bearing ring and the outer bearing ring are assembled, the outer bearing ring is mounted on the outer side of the inner bearing ring, then the balls are placed into the vertical guiding grooves, and the balls can fall into the sliding grooves. After the ball is installed, the ball can reliably roll in the chute only by arranging the sealing plug at the leading-in groove, and the ball is prevented from being separated outwards through the leading-in groove.
That is, the invention greatly facilitates the assembly of the outer bearing ring and the inner bearing ring by arranging the leading-in groove, so that the base can form bearing rotary connection with the base.
Preferably, a plurality of reinforcing ribs are arranged in the base, one ends of the reinforcing ribs are fixedly connected to the circular inner side wall of the base, the other ends of the reinforcing ribs are connected with the eccentric shaft, the reinforcing ribs are located in the normal direction of the inner side wall of the base, and the reinforcing ribs are uniformly distributed in the circumferential direction with the eccentric shaft as the center of circle.
The base is provided with a plurality of reinforcing ribs connected with the eccentric shaft, so that the eccentric shaft is reliably positioned. In particular, the reinforcing ribs are located in the normal direction of the inner side wall of the base, so that the reinforcing ribs only need to bear axial acting force, and correspondingly, the reinforcing ribs only form normal acting force on the inner side wall of the base and cannot form tangential component force. It will be appreciated that the arcuate base inner wall forms an arch bridge like structure which has a very high resistance to normal forces. In addition, the reinforcing ribs are uniformly distributed in the circumferential direction with the eccentric shaft as the center of a circle, so that uniform supporting force can be formed on the eccentric shaft, and the positioning and fixing of the eccentric shaft are ensured.
Preferably, the sunlight tracking device further comprises a sunlight tracking device, the sunlight tracking device comprises a mounting plate, a light guide pipe vertically arranged on the mounting plate, a connecting seat and a controller used for controlling the sunlight tracking device and a heliostat driving device to move, a light sensor is arranged on the mounting plate corresponding to the position of the light guide pipe, the connecting seat comprises a fixed seat and a movable seat connected with the mounting plate, the movable seat is rotatably connected with the fixed seat through a horizontal rotating shaft, the fixed seat is associated with a horizontal rotating motor, the movable seat is associated with a pitching motor, and the sunlight tracking device comprises the following working steps:
a. the horizontal rotating motor drives the fixed seat to horizontally rotate for a circle, and the pitching motor is in an off state at the moment;
b. the pitching motor drives the movable seat to rotate by a pitching increasing angle;
c. and (c) repeating the steps a and b in sequence, wherein the controller records the horizontal rotation angle of the fixed seat and the pitching incremental angle of the movable seat in real time, and so on until the axis of the light guide pipe is parallel to the incident light of the sunlight, the sunlight irradiates the light sensor through the light guide pipe at the moment, the light sensor sends a signal to the controller, and the controller can control the base of the horizontal rotation driving device to rotate by the same horizontal rotation angle and the pitching incremental angle of the pitching driving device to rotate by the same pitching incremental angle.
It is known that heliostats are known which are controlled in their rotational position and orientation according to a set program, depending on the dimensions of the location in which they are located, in order to reflect the solar rays onto the heat absorbers of the heat collecting tower. It will be appreciated that for different positions on the ground with dimensions differing by hundreds of meters, or even thousands of meters, the error will be relatively large when the heliostat is rotated according to the set program. That is, it is difficult to adjust the rotation angle and the pitch angle of the heliostat in real time according to the actual sunlight irradiation angle, direction, and the like.
The invention comprises a sunlight tracking device capable of tracking sunlight in real time, wherein the sunlight tracking device comprises a horizontal rotating motor, a pitching motor and a light guide pipe for determining the river and the direction of the sunlight. When the device works, the horizontal rotating motor drives the fixed seat to horizontally rotate for a circle, the pitching motor is in an off state at the moment, namely, the movable seat keeps static and unchanged relative to the pitching angle of the fixed seat at the moment, and the movable seat, the mounting plate and the light guide pipe rotate along with the fixed seat; then, the pitching motor drives the movable seat to rotate by a pitching incremental angle, and the light guide pipe at the moment correspondingly changes the pitching incremental angle; when the step a is repeated, the light guide pipe can rotate for a circle at a new pitch angle; and c, when the step b is repeated, the pitching motor drives the movable seat and the light pipe to correspondingly change the pitching angle. Analogize with this, the light pipe rotates under the every single move angle of difference, until sunlight is completely parallel with the light pipe, sunlight can follow the light sensor that the upper shed of light pipe shines the lower extreme opening part on, light sensor can be to a signal of controller output, the controller then steerable heliostat rotates with the same horizontal turned angle of light pipe, the every single move angle the same with the light pipe, ensure then that the heliostat can trail the angle of sunlight all the time, ensure that the heliostat can accurately with sunlight reflection to the heat absorber of heat collecting tower on.
It should be noted that, for the same solar thermal power generation system, only one set of sunlight tracking device needs to be arranged, and all heliostats can synchronously rotate and pitch with the sunlight tracking device.
Therefore, the invention has the following beneficial effects: the structure of the heliostat driving device can be simplified, so that the heliostat can track the movement of the sun and accurately reflect sunlight to the heat absorber, and the photoelectric conversion efficiency is improved.
Drawings
Fig. 1 is a schematic diagram of a solar thermal power generation system.
FIG. 2 is a schematic view of an installation configuration of heliostats.
Fig. 3 is a schematic view of an exploded structure of the horizontal rotation driving device.
Fig. 4 is a schematic view of a structure of the horizontal rotation driving apparatus.
Fig. 5 is a schematic diagram of an arrangement of the drive cylinder.
Fig. 6 is an assembly structure diagram of the bearing inner ring and the bearing outer ring.
Fig. 7 is a schematic view of a structure of the sunlight tracking apparatus.
In the figure: 1. the solar heat collecting tower comprises a heat collecting tower 11, a heat absorber 2, a heliostat 21, a vertical column 3, a base 31, a supporting inner ring 311, a semi-sliding groove 312, balls 313, an introduction groove 314, a sealing plug 32, a reinforcing rib 4, a base 41, a supporting outer ring 5, an eccentric shaft 6, a driving oil cylinder 7, a hinge shaft 8, an installation plate 81, a light guide pipe 82, a light sensor 9, a connecting seat 91, a movable seat 911, a rotating shaft 92 and a fixed seat.
Detailed Description
The invention is further described with reference to the following detailed description and accompanying drawings.
As shown in fig. 1, a heliostat driving device is applied to a solar thermal power generation system, and includes a heat collecting tower 1, a heat absorber 11 disposed at an upper end of the heat collecting tower, and a plurality of heliostats 2 disposed toward the heat collecting tower, wherein the heliostats reflect solar rays to the heat absorber of the heat collecting tower, and of course, the heliostats are disposed on a vertical column 21. The solar energy collecting tower comprises a horizontal rotation driving device for driving a heliostat to rotate horizontally and a pitching driving device for driving the heliostat to rotate in a vertical plane, and the heliostat can track the sunlight at any time according to the geographical latitude of the heliostat through the horizontal rotation and pitching oscillation of the heliostat so as to ensure that the sunlight is reflected to a heat absorber of the heat collecting tower.
Specifically, as shown in fig. 2, 3 and 4, the horizontal rotation driving device includes a base 3 fixedly disposed on the heliostat column, and a circular ring-shaped base 4 rotatably disposed on the base and connected to the heliostat, that is, the heliostat can horizontally rotate with respect to the base along with the base. In addition, the base is provided with an eccentric shaft 5 deviating from the rotation axis of the base, 3 driving oil cylinders 6 are uniformly arranged in the circumferential direction of the base, the cylinder bodies of the driving oil cylinders are hinged with the base through hinge seats 7, and the end parts of the piston rods of the driving oil cylinders are hinged with the eccentric shaft. When the piston rods of the 3 driving oil cylinders sequentially extend and retract, an acting force deviating from the rotation center can be formed on the base, the acting force can be decomposed into a radial force passing through the rotation center of the base and a driving force along the tangential direction of the rotation circle of the base, and the driving force forms a torque on the base so as to drive the base to rotate relative to the base.
In addition, as shown in fig. 5, the first and third driving cylinders and the hinge center of the hinge base are located in the same radial direction of the base, and the distance between the hinge center of the second driving cylinder and the hinge base and the hinge center of the first and third driving cylinders is equal. When the eccentric shaft is positioned between the first driving oil cylinder and the third driving oil cylinder and is close to one side of the second driving oil cylinder, the first driving oil cylinder can extend firstly, so that the maximum torque is generated on the base; along with the rotation of the base, the torque formed by the first driving oil cylinder is gradually reduced, and at the moment, the second driving oil cylinder extends, so that the base is subjected to complementary torque; when the base rotates to the position that the first driving oil cylinder is positioned in the radial direction of the base, the first driving oil cylinder and the third driving oil cylinder are positioned at the dead point position, the tangential component force is zero, and the second driving oil cylinder generates the maximum torque to the base at the moment; when the base rotates to the side that the eccentric shaft is positioned between the first driving oil cylinder and the third driving oil cylinder and is far away from the second driving oil cylinder, the torque generated by the second driving oil cylinder to the base is gradually reduced, and the torque generated by the first driving oil cylinder and the third driving oil cylinder to the base is gradually increased. That is, 3 drive cylinders can provide a substantially constant torque to the base.
In addition, the eccentric distance R of the eccentric shaft relative to the rotation center of the base and the rotation radius R of the hinge seat on the base and the hinge center of the driving oil cylinder form the following relationship; R/R is more than or equal to 0.5 and less than or equal to 0.8, so that the driving oil cylinder can form a torque as large as possible on the base, the fluctuation range of the torque formed by the driving oil cylinder on the base is reduced as much as possible, and the stable rotation of the heliostat is facilitated.
It should be noted that the pitch driving device belongs to the prior art in the field, and the present invention also adopts the existing pitch driving device, so that the detailed description is not provided in this embodiment.
Preferably, as shown in fig. 4, 5 and 6, a supporting inner ring 31 is fixedly arranged on the base, a supporting outer ring 41 is coaxially arranged outside the supporting inner ring, semi-sliding grooves 311 with semicircular cross sections are respectively arranged on the outer circumferential surface of the supporting inner ring and the inner circumferential surface of the supporting outer ring, the two semi-sliding grooves are spliced to form a sliding groove, and a plurality of balls 312 are arranged in the sliding groove, so that the supporting inner ring and the supporting outer ring form the rotating connection of a ball bearing, and the friction resistance of the base and the heliostat during rotation is greatly reduced.
In addition, an introduction groove 313 which vertically runs through the chute downwards is arranged at the splicing seam of the upper sides of the inner bearing ring and the outer bearing ring, and a sealing plug 314 is arranged at the opening of the introduction groove.
Therefore, when the bearing inner ring and the bearing outer ring are assembled, the bearing outer ring is arranged on the outer side of the bearing inner ring, and then the balls are placed into the vertical guide grooves, so that the balls can fall into the sliding grooves. After the ball is installed, the ball can reliably roll in the chute only by arranging the sealing plug at the leading-in groove, and the ball is prevented from being separated outwards through the leading-in groove.
Of course, the diameter of the introduction groove should be not smaller than the diameter of the ball.
Furthermore, 3-4 reinforcing ribs 32 can be arranged in the base, one end of each reinforcing rib is fixedly connected to the circular inner side wall of the base, and the other end of each reinforcing rib is connected with the eccentric shaft, so that the eccentric shaft is reliably positioned.
In addition, the reinforcing ribs can be positioned in the normal direction of the inner side wall of the base. That is to say, the reinforcing ribs are located in the diameter direction of the circular inner side wall of the base, so that the reinforcing ribs only need to bear axial acting force, and correspondingly, the reinforcing ribs only form normal acting force to the inner side wall of the base, and cannot form tangential component force. Since the circular arc-shaped inner wall of the base has a very high resistance to normal forces, a stable positioning of the eccentric shaft can be ensured and the size and weight of the base can be reduced accordingly. In addition, the reinforcing ribs are uniformly distributed in the circumferential direction with the eccentric shaft as the center of a circle, so that uniform supporting force can be formed on the eccentric shaft.
As a preferable mode, the present invention further comprises a sunlight tracking device, and as shown in fig. 7, the sunlight tracking device comprises a mounting plate 8, a light guide pipe 81 vertically arranged on the upper side of the mounting plate, a connecting seat 9, and a controller for controlling the actions of the sunlight tracking device and the heliostat driving device. Correspond the light pipe lower extreme open position on the mounting panel and be equipped with light sensor 82, the connecting seat includes fixing base 92, the sliding seat 91 of being connected with the mounting panel downside, and the sliding seat rotates through horizontally axis of rotation 911 and fixing base to be connected. In addition, the fixed base is associated with a horizontal rotation motor (not shown), and the movable base is associated with a pitching motor (not shown). That is, when the horizontal rotating motor rotates, the fixing seat can be driven to rotate horizontally; when the pitching motor rotates, the movable seat can be driven to pitch and rotate in the vertical plane. Specifically, the working steps of the sunlight tracking device are as follows:
a. the horizontal rotating motor drives the fixed seat to horizontally rotate for a circle, the pitching motor is in an off state at the moment, correspondingly, the pitching angle of the movable seat relative to the fixed seat is kept static and unchanged at the moment, and the movable seat, the mounting plate and the light guide pipe rotate along with the fixed seat;
b. the pitching motor drives the movable seat to rotate by a pitching incremental angle, namely, the light guide pipe at the moment correspondingly changes the pitching angle;
c. and d, repeating the step a to enable the light guide pipe to rotate for a circle at the new pitch angle. And then repeating the step b to enable the movable seat to continuously rotate by a pitching increasing angle, and correspondingly, the light guide pipe continuously changes the pitching angle. Analogizing from this, the light pipe rotates under the every single move angle of difference, until sunlight is completely parallel with the light pipe, sunlight can follow the light sensor that the upper shed of light pipe shines the lower extreme opening part on, light sensor can be to controller output a signal, the same horizontal turned angle of the same level of controller then steerable heliostat rotates with the light pipe, the every single move angle the same with the light pipe, then ensure that the heliostat can trail the angle of sunlight all the time, ensure that the heliostat can accurately reflect the sunlight to the heat absorber of heat collecting tower on
It should be noted that, for the same solar thermal power generation system, only one set of sunlight tracking device needs to be arranged, and all heliostats can synchronously rotate and pitch with the sunlight tracking device.
In addition, the sunlight tracking device is used for tracking and detecting the incident angle of the sunlight in real time, so that in the steps a and b, as long as the light ray sensor senses the sunlight passing through the light guide pipe, the axis of the light guide pipe is proved to be parallel to the sunlight, and accordingly, the controller can enable the heliostat to rotate by the same horizontal rotation angle and the same pitching angle as the light guide pipe.
Preferably, the horizontal rotation motor can drive the fixed seat to rotate back and forth in the forward and reverse directions, specifically, the odd number times of forward transmission such as 1 st, 3 rd and 5 th times, and the even number times of reverse rotation such as 2 nd, 4 th and 6 th times, so as to avoid the overlarge rotation angle of the fixed seat, and the horizontal forward rotation angle of the base of the horizontal rotation driving device and the fixed seat is recorded as a positive number, and the reverse rotation angle is recorded as a negative number.
Claims (4)
1. A heliostat driving device comprises a horizontal rotation driving device and a pitching driving device, wherein the horizontal rotation driving device is used for driving a heliostat to rotate horizontally, the pitching driving device is used for driving the heliostat to rotate in a vertical plane, the horizontal rotation driving device comprises a base arranged on a heliostat upright column, and a base which is rotatably arranged on the base and is used for being connected with the heliostat, the horizontal rotation driving device is characterized in that an eccentric shaft deviating from the rotation axis of the base is arranged on the base, 3 driving oil cylinders are uniformly arranged in the circumferential direction of the base, the cylinder bodies of the driving oil cylinders are hinged with the base through hinged seats, the end parts of piston rods of the driving oil cylinders are hinged with the eccentric shaft, the hinged seats connected with a first driving oil cylinder and a third driving oil cylinder are positioned in the same radial direction of the base, the distance between a second driving oil cylinder and the first driving oil cylinder and the distance between the second driving oil cylinder and the third driving oil cylinder are equal, and the eccentric distance between the eccentric shaft and the rotation center of the base is r, the rotating radius of the hinged seat on the base is R, and R/R is more than or equal to 0.5 and less than or equal to 0.8.
2. The heliostat driving device of claim 1, wherein the base is fixed with an inner supporting ring, the outer supporting ring is fixed with an outer supporting ring fixed on the base, the outer side of the inner supporting ring and the inner side of the outer supporting ring are respectively provided with a semi-chute with a semicircular cross section, the two semi-chutes are spliced to form a chute, the chute is internally provided with a plurality of balls so as to enable the inner supporting ring and the outer supporting ring to form a rotary connection, the splicing seam of the upper sides of the inner supporting ring and the outer supporting ring is provided with an introduction groove vertically penetrating through the chute, and the opening of the introduction groove is provided with a sealing plug.
3. A heliostat driving device according to claim 1, wherein a plurality of reinforcing ribs are provided in the base, one end of each reinforcing rib is fixed to the circular inner side wall of the base, the other end of each reinforcing rib is connected to the eccentric shaft, the reinforcing ribs are located in the normal direction of the inner side wall of the base, and the reinforcing ribs are uniformly distributed in the circumferential direction around the eccentric shaft.
4. A heliostat driving device according to claim 3, further comprising a sunlight tracking device, wherein the sunlight tracking device comprises a mounting plate, a light pipe vertically arranged on the mounting plate, a connecting seat, and a controller for controlling the actions of the sunlight tracking device and the heliostat driving device, a light sensor is arranged on the mounting plate corresponding to the position of the light pipe, the connecting seat comprises a fixed seat and a movable seat connected with the mounting plate, the movable seat is rotatably connected with the fixed seat through a horizontal rotating shaft, the fixed seat is associated with a horizontal rotating motor, the movable seat is associated with a pitching motor, and the sunlight tracking device is operated as follows:
a. the horizontal rotating motor drives the fixed seat to horizontally rotate for a circle, and the pitching motor is in an off state at the moment;
b. the pitching motor drives the movable seat to rotate by a pitching increasing angle;
c. and (c) repeating the steps a and b in sequence, wherein the controller records the horizontal rotation angle of the fixed seat and the pitching incremental angle of the movable seat in real time, and so on until the axis of the light guide pipe is parallel to the incident light of the sunlight, the sunlight irradiates the light sensor through the light guide pipe at the moment, the light sensor sends a signal to the controller, and the controller can control the base of the horizontal rotation driving device to rotate by the same horizontal rotation angle and the pitching incremental angle of the pitching driving device to rotate by the same pitching incremental angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110540817.8A CN113311876A (en) | 2021-05-18 | 2021-05-18 | Heliostat driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110540817.8A CN113311876A (en) | 2021-05-18 | 2021-05-18 | Heliostat driving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113311876A true CN113311876A (en) | 2021-08-27 |
Family
ID=77373439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110540817.8A Pending CN113311876A (en) | 2021-05-18 | 2021-05-18 | Heliostat driving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113311876A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101236287A (en) * | 2008-02-26 | 2008-08-06 | 苏建国 | Heliostat device |
| CN207335201U (en) * | 2017-11-01 | 2018-05-08 | 张士华 | Solar boiler |
| CN108733087A (en) * | 2018-07-26 | 2018-11-02 | 洛阳斯特林智能传动科技有限公司 | Track driving device and heliostat, tower solar-thermal generating system |
| CN108809209A (en) * | 2018-07-26 | 2018-11-13 | 洛阳斯特林智能传动科技有限公司 | Solar-thermal generating system, heliostat, tracking driving device and firm banking |
| CN208459666U (en) * | 2018-07-26 | 2019-02-01 | 洛阳斯特林智能传动科技有限公司 | Heliostat tracking driving device and heliostat, tower solar-thermal generating system |
| CN208459864U (en) * | 2018-07-26 | 2019-02-01 | 洛阳斯特林智能传动科技有限公司 | Heliostat and the tower solar-thermal generating system for using the heliostat |
| CN110165986A (en) * | 2019-04-11 | 2019-08-23 | 杭州中德传动设备有限公司 | A kind of large size heliostat device |
| CN110160273A (en) * | 2019-04-11 | 2019-08-23 | 杭州中德传动设备有限公司 | A kind of large size heliostat horizontal rotation driving device |
| CN110456826A (en) * | 2019-07-22 | 2019-11-15 | 浙江恒星传动科技有限公司 | A kind of large size heliostat double-axis tracking driving device |
-
2021
- 2021-05-18 CN CN202110540817.8A patent/CN113311876A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101236287A (en) * | 2008-02-26 | 2008-08-06 | 苏建国 | Heliostat device |
| CN207335201U (en) * | 2017-11-01 | 2018-05-08 | 张士华 | Solar boiler |
| CN108733087A (en) * | 2018-07-26 | 2018-11-02 | 洛阳斯特林智能传动科技有限公司 | Track driving device and heliostat, tower solar-thermal generating system |
| CN108809209A (en) * | 2018-07-26 | 2018-11-13 | 洛阳斯特林智能传动科技有限公司 | Solar-thermal generating system, heliostat, tracking driving device and firm banking |
| CN208459666U (en) * | 2018-07-26 | 2019-02-01 | 洛阳斯特林智能传动科技有限公司 | Heliostat tracking driving device and heliostat, tower solar-thermal generating system |
| CN208459864U (en) * | 2018-07-26 | 2019-02-01 | 洛阳斯特林智能传动科技有限公司 | Heliostat and the tower solar-thermal generating system for using the heliostat |
| CN110165986A (en) * | 2019-04-11 | 2019-08-23 | 杭州中德传动设备有限公司 | A kind of large size heliostat device |
| CN110160273A (en) * | 2019-04-11 | 2019-08-23 | 杭州中德传动设备有限公司 | A kind of large size heliostat horizontal rotation driving device |
| CN110456826A (en) * | 2019-07-22 | 2019-11-15 | 浙江恒星传动科技有限公司 | A kind of large size heliostat double-axis tracking driving device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4227513A (en) | Solar system having improved heliostat and sensor mountings | |
| CN201149660Y (en) | Apparatus for tracking disc-shaped solar collector | |
| CN102788434B (en) | Tracking driving mechanism of heliostat | |
| US20110139145A1 (en) | Tracker drive system and solar energy collection system | |
| US8844515B2 (en) | Carousel heliostat having louvered horizontal mirrors for solar tower systems | |
| CN101173826A (en) | Sun tracing apparatus | |
| KR101947422B1 (en) | Solar photovoltaic device with a solar ground surface reflection module | |
| CN103165699B (en) | Tower-type solar energy heliostat bevel gear passive automatic sun-chasing support | |
| CN105183007B (en) | A kind of column solar tracking system rotates horizontally driving device and its design method | |
| CN109286363B (en) | Photovoltaic power generation tracking means of rotatory folding expansion | |
| KR100749504B1 (en) | Sunlight reflective equipment applied to a solar-heat development system | |
| CN108462437A (en) | A kind of photovoltaic power station photovoltaic module fixed system | |
| CN113311876A (en) | Heliostat driving device | |
| CN103165698B (en) | The passive automatic sun-tracing support of tower type solar heliostat cylindrical gear | |
| CN110456826A (en) | A kind of large size heliostat double-axis tracking driving device | |
| CN102466329A (en) | Solar energy collection device | |
| CN108988762B (en) | Tracking type photovoltaic bracket control system and control method thereof | |
| CN116058359A (en) | Bird repellent device for outdoor transmission line | |
| CN107525284B (en) | Heliostat device | |
| CN116169943A (en) | Wind power and photovoltaic complementary power generation system | |
| US20120199175A1 (en) | Articulating a Solar Energy System | |
| CN108614585B (en) | Novel automatic light tracing mechanism based on shape memory alloy | |
| KR100749508B1 (en) | Sunlight reflective equipment applied to a solar-heat development system | |
| CN111878943A (en) | Non-induction type tracking system of solar air conditioner and solar water heater | |
| CN207963213U (en) | A kind of tracking driving device and heliostat and tower solar-thermal generating system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210827 |
|
| RJ01 | Rejection of invention patent application after publication |