Push rod type heliostat support for solar thermal power generation

Abstract

The application relates to the technical field of photo-thermal power generation and discloses a push rod type heliostat support for photo-thermal power generation, which comprises a base, a supporting column rotatably arranged on the base, a mounting seat hingedly arranged at the top end of the supporting column, an azimuth angle adjusting mechanism arranged on the base and used for pushing the supporting column to rotate so as to adjust the azimuth angle of the heliostat, and a height angle adjusting mechanism arranged on the supporting column and used for pushing the mounting seat to adjust the height angle of the heliostat. In the application, when the heliostat is installed, the third electric push rod is used to drive the descending push disc to descend, and then the supporting frame is rotated upwards around the pin shaft of the second hinge base as the rotating center, so that the folding degrees of the supporting frames are synchronously adjusted, the supporting posture is changed through the supporting frame, and the installation of the heliostat is matched, thereby solving the problem that the supporting structure of the heliostat in the prior art cannot be adaptively adjusted according to the shape and size of the heliostat.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of photo-thermal power generation, in particular, to a push rod type photo-thermal power generation heliostat support. BACKGROUND

[0002] Solar energy as a clean energy has been widely concerned in recent years, and solar thermal power generation as an effective way to utilize solar energy has been concerned by many researchers. The basic principle of solar thermal power generation is to reflect sunlight to an absorption tower through a heliostat, heat the working medium in the absorption tower, make the working medium produce steam, and then drive the steam turbine to drive the generator to generate electricity. Among them, the number of heliostats in the tower type solar thermal power plant is tens of thousands, and the stability of the heliostat structure has a great influence on the reflection quality of sunlight.

[0003] For small and medium-sized rectangular tracking heliostat systems, the driving device basically adopts a double rotary speed reducer or a rotary speed reducer combined with an electric push rod structure, such as the heliostat support for solar photo-thermal power generation disclosed in the publication No. CN112097406A, which comprises a main beam, a vice beam arranged at the top of the main beam, a support beam arranged at both sides of the main beam, a support arranged at the bottom of the vice beam, a fixing piece arranged at the bottom of the support, a first fixing part, a second fixing part and a third fixing part arranged on the outer surface of the fixing piece, a bearing arranged at the bottom of the main beam, a first bearing seat arranged at the bottom of the bearing, a stand arranged at the bottom of the first bearing seat, a rotary speed reducer arranged on the upper surface of the first bearing seat, a first flange arranged on the upper surface of the rotary speed reducer, a second flange arranged on the lower surface of the rotary speed reducer, an outer cylinder arranged outside the stand, a rolling bearing arranged between the stand and the outer cylinder, and an inclined support arranged at both sides of the outer cylinder; the heliostat support for solar photo-thermal power generation can protect the rotary speed reducer by arranging the main beam and the first bearing seat, and can facilitate the maintenance of the rotary speed reducer by arranging the first flange and the second flange.

[0004] However, the above-mentioned heliostat support for photo-thermal power generation still has the following problems: the rotary speed reducer used in the above-mentioned heliostat support for photo-thermal power generation has a relatively high cost, the system cannot realize self-locking, the stability and tracking precision are difficult to guarantee, and in addition, the support structure of the heliostat cannot be adaptively adjusted according to the shape and size of the heliostat, and the application range is relatively narrow. SUMMARY

[0005] The present application provides a push rod type heliostat support for photo-thermal power generation, which solves the problem that the rotary speed reducer is used as a driving source and the support structure of the heliostat cannot be adaptively adjusted according to the shape and size of the heliostat in the prior art.

[0006] The technical scheme of the present application is as follows: a push rod type heliostat support for a light and heat power generation, comprising a base, a support column rotatably arranged on the base, a mounting seat hingedly arranged at the top of the support column, an azimuth angle adjusting mechanism arranged on the base and used for pushing the support column to rotate to adjust the azimuth angle of the heliostat, a height angle adjusting mechanism arranged on the support column and used for pushing the mounting seat to adjust the height angle of the heliostat, a lifting push plate arranged above the mounting seat, a plurality of radially distributed support members arranged on the outer side of the lifting push plate, and an assembly adjusting mechanism arranged on the mounting seat and used for adjusting the mounting posture of the support members through the lifting push plate.

[0007] Preferably, the azimuth angle adjusting mechanism comprises a first electric push rod, a support hingedly arranged at the end of the first electric push rod and fixed to the base, and a first push handle hingedly arranged at the output end of the first electric push rod and fixed to the support column at the end away from the first electric push rod.

[0008] Preferably, the height angle adjusting mechanism comprises a second electric push rod, a support hingedly arranged at the end of the second electric push rod and fixed to the support column, and a second push handle hingedly arranged at the output end of the second electric push rod and fixed to the mounting seat at the end away from the second electric push rod.

[0009] Preferably, the support member comprises a support frame, a first hinge seat fixed at one end of the support frame close to the lifting push plate, a fixed plate hingedly arranged in the first hinge seat through a pin shaft, the fixed plate being fixed to the lifting push plate, a limiting groove arranged on the fixed plate and used for limiting the sliding of the pin shaft, a second hinge seat fixed at the bottom of one end of the support frame close to the lifting push plate, a support plate hingedly arranged in the second hinge seat through a pin shaft, a fixed column fixed to the bottom of the support plate, a third electric push rod, an installation disc fixed to the bottom of the third electric push rod and fixed to the mounting seat, and an ear plate fixed to the outer side of the installation disc and fixedly connected with the fixed column.

[0010] Preferably, a plurality of uniformly distributed fixed seats are fixed to the support frame.

[0011] Preferably, the first electric push rod, the second electric push rod and the third electric push rod each comprise a shell and a motor fixed to the outer side of the shell, a partition plate fixed to the inner side of the shell and used for dividing the space in the shell into a transmission chamber and a pushing chamber, a transmission assembly arranged in the transmission chamber, and a pushing assembly arranged in the pushing chamber and used for extending and retracting under the transmission of the transmission assembly.

[0012] Preferably, the transmission assembly comprises a worm, a first transmission shaft and a second transmission shaft, the worm is fixed to the output end of the motor, the worm is rotationally connected with the shell, the first transmission shaft and the second transmission shaft are both rotationally connected with the shell, the first transmission shaft is fixed with a worm wheel engaged with the worm, one end of the first transmission shaft extends into the propulsion chamber and is fixed with a first gear, and the second transmission shaft is fixed with a second gear engaged with the first gear.

[0013] Preferably, the propulsion assembly comprises a first cylinder and a second cylinder, the second cylinder is rotationally connected with the partition plate, the first cylinder is sleeved in the second cylinder and is threadedly connected with the second cylinder, the inner side of the bottom of the second cylinder is provided with an annular tooth surface engaged with the second gear, the top of the first cylinder is fixed with a limiting block slidingly limited in the shell, the top of the limiting block is fixed with an extension rod, and the extension rod penetrates out of the shell and is fixed with a push plate.

[0014] The present application has the following beneficial effects:

[0015] 1. In the present application, when the heliostat is installed, the shape and size of the heliostat are adjusted, the third electric push rod drives the descending push disc to descend, and then drives the support frame to rotate upward around the pin shaft of the second hinge as the rotation center, so as to synchronously adjust the folding degree of each support frame, and the support posture is changed by the support frame to fit the installation of the heliostat, thereby solving the problem that the support structure of the heliostat in the prior art cannot be adaptively adjusted according to the shape and size of the heliostat.

[0016] 2. The first electric push rod and the second electric push rod are used as double push rod polar shaft working modes to adjust the height angle and the azimuth angle, and the adjustment of the azimuth angle and the height angle is highly coupled, so that the stress mode of the structure can be greatly improved, the azimuth angle of the support frame can be accurately controlled, and the corresponding cost is reduced by more than 80%.

[0017] 3. Compared with the rotary speed reducer in the prior art, the transmission mode adopted in the present application is easier to realize lightweight structure and convenient maintenance, and the mechanical self-locking of the push rod can be realized through the non-reverse transmission principle of the worm and the worm wheel, thereby improving the reliability of the structure. BRIEF DESCRIPTION OF DRAWINGS

[0018] The present application will be further described in detail below in combination with the drawings and specific embodiments.

[0019] Figure 1 A push rod type heliostat support structure for a solar thermal power generation is provided.

[0020] Figure 2 Another perspective view of the push rod type heliostat support structure for a solar thermal power generation is provided.

[0021] Figure 3 Structure diagram of azimuth angle adjusting mechanism and height angle adjusting mechanism of the present application;

[0022] Figure 4 Structure diagram of bracket component and assembly adjusting mechanism of the present application;

[0023] Figure 5 Structure diagram of bracket component of the present application;

[0024] Figure 6 Structure diagram of Figure 5 Enlarged structure diagram of A in the middle;

[0025] Figure 7 Structure diagram of first, second and third electric push rods of the present application;

[0026] Figure 8 Structure diagram of first, second and third electric push rods of the present application;

[0027] Figure 9 Structure diagram of first and second cylinder bodies of the present application;

[0028] In the figure: 1, base; 2, support column; 3, azimuth angle adjusting mechanism; 31, first electric push rod; 32, support; 33, first push handle; 4, height angle adjusting mechanism; 41, second electric push rod; 42, second push handle; 5, mounting seat; 6, assembly adjusting mechanism; 61, shell; 62, motor; 63, push plate; 64, telescopic rod; 65, limiting block; 66, first cylinder body; 67, second cylinder body; 68, partition plate; 69, worm; 610, first transmission shaft; 611, worm wheel; 612, first gear; 613, second transmission shaft; 614, second gear; 615, annular tooth surface; 7, lifting push plate; 8, bracket component; 81, support frame; 82, fixed seat; 83, first hinge seat; 84, fixed plate; 841, limiting groove; 85, support plate; 86, second hinge seat; 87, fixed column; 88, mounting disc; 89, ear plate. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0030] Please refer to Figure 1 and Figure 2The application provides a technical scheme: a push rod type heliostat support for light and heat power generation, which comprises a base 1, a support column 2 rotatably arranged on the base 1, and a mounting seat 5 hingedly arranged at the top end of the support column 2. The support column 2 adopts an extension structure, and the use height of the heliostat can be adjusted. Since the height of the heliostat has nothing to do with the direction of receiving light and the intensity of light, the extension adjustment mode of the support column 2 can adopt the conventional structure in the prior art. The difference between the application and the prior art is that the base 1 is provided with an azimuth angle adjusting mechanism 3 for rotating the support column 2 to adjust the azimuth angle of the heliostat, and the support column 2 is provided with a height angle adjusting mechanism 4 for pushing the mounting seat 5 to adjust the height angle of the heliostat. The application adopts a double push rod polar axis working mode to adjust the height angle and the azimuth angle, and the adjustment of the azimuth angle and the height angle is coupled. The upper portion of the mounting seat 5 is provided with a lifting push plate 7, the outer side of the lifting push plate 7 is provided with a plurality of radially distributed support components 8, the mounting seat 5 is provided with an assembly adjusting mechanism 6 for adjusting the mounting posture of the support components 8 through the lifting push plate 7, the stability of the heliostat structure is improved through the umbrella type structure design, and the heliostat with different mirror shapes and different sizes can be matched.

[0031] Please refer to Figure 3 The azimuth angle adjusting mechanism 3 comprises a first electric push rod 31, the tail end of the first electric push rod 31 is hingedly provided with a support 32, the support 32 is fixed to the base 1, the output end of the first electric push rod 31 is hingedly provided with a first push handle 33, one end of the first push handle 33 away from the first electric push rod 31 is fixed to the support column 2, the height angle adjusting mechanism 4 comprises a second electric push rod 41, the tail end of the second electric push rod 41 is hingedly arranged on the support column 2, the output end of the second electric push rod 41 is hingedly provided with a second push handle 42, one end of the second push handle 42 away from the second electric push rod 41 is fixed to the mounting seat 5, the first electric push rod 31 and the second electric push rod 41 are used as driving force to realize the corresponding adjustment of the azimuth angle and the height angle of the heliostat, so that the absorption and conversion efficiency of solar energy is improved.

[0032] Please refer to Figure 4 , Figure 5 and Figure 6The support component 8 comprises a support frame 81, a first hinge base 83 is fixed at one end of the support frame 81 close to the lifting push plate 7, a fixed plate 84 is hingedly connected in the first hinge base 83 through a pin shaft, the fixed plate 84 is fixed on the lifting push plate 7, a limiting groove 841 for limiting sliding of the pin shaft is formed on the fixed plate 84, a second hinge base 86 is fixed at the bottom of the one end of the support frame 81 close to the lifting push plate 7, a support plate 85 is hingedly connected in the second hinge base 86 through a pin shaft, a fixed column 87 is fixed at the bottom of the support plate 85, the assembly adjusting mechanism 6 comprises a third electric push rod, the bottom of the third electric push rod is fixed with a mounting disc 88, the mounting disc 88 is fixed on the mounting seat 5, an ear plate 89 fixedly connected with the fixed column 87 is fixed on the outer side of the mounting disc 88, a plurality of fixed seats 82 uniformly distributed are fixed on the support frame 81, and the fixed seats 82 are used for mounting and connecting the heliostat, before the heliostat is mounted, the third electric push rod is driven to drive the lifting push plate 7 to descend, and then the support frame 81 is driven to rotate upward with the pin shaft of the second hinge base 86 as the rotation center, so that the folding degrees of the support frames 81 are synchronously adjusted, the support posture is changed through the support frame 81, and the mounting of the heliostat is matched, and the application range is improved.

[0033] Please refer to Figure 7 、 Figure 8 and Figure 9The first electric push rod 31, the second electric push rod 41 and the third electric push rod all comprise a shell 61 and a motor 62 fixed to the outside of the shell 61, the inside of the shell 61 is fixed with a partition plate 68, the partition plate 68 divides the space in the shell 61 into a transmission chamber and a pushing chamber, the transmission chamber is provided with a transmission assembly, the pushing chamber is provided with a pushing assembly which is driven to extend and retract by the transmission assembly, the transmission assembly comprises a worm 69, a first transmission shaft 610 and a second transmission shaft 613, the worm 69 is fixed to the output end of the motor 62, the worm 69 is rotatably connected with the shell 61, the first transmission shaft 610 and the second transmission shaft 613 are both rotatably connected with the shell 61, the first transmission shaft 610 is fixed with a worm wheel 611 which is engaged with the worm 69, one end of the first transmission shaft 610 extends into the pushing chamber and is fixed with a first gear 612, the second transmission shaft 613 is fixed with a second gear 614 which is engaged with the first gear 612, the pushing assembly comprises a first cylinder body 66 and a second cylinder body 67, the second cylinder body 67 is rotatably connected with the partition plate 68, the first cylinder body 66 is sleeved on the second cylinder body 67 and is threadedly connected with the second cylinder body 67, the bottom inside of the second cylinder body 67 is provided with an annular tooth surface 615 which is engaged with the second gear 614, the top of the first cylinder body 66 is fixed with a limiting block 65 which is slidingly limited in the shell 61, the top of the limiting block 65 is fixed with an extension rod 64, the extension rod 64 penetrates to the outside of the shell 61 and is fixed with a push plate 63, when the motor 62 is started, the worm 69 is driven to rotate, the first transmission shaft 610 is driven to rotate by the engagement of the worm 69 and the worm wheel 611, the second gear 614 is engaged with the annular tooth surface 615 on the bottom inside of the second cylinder body 67 by the engagement of the first gear 612 and the second gear 614 on the first transmission shaft 610, the second cylinder body 67 can be driven to rotate, the extension rod 64 can drive the push plate 63 to extend and retract by the thread action of the first cylinder body 66 and the second cylinder body 67 and the sliding limitation of the limiting block 65 and the shell 61.

[0034] The working principle of the present application is as follows: when the heliostat is installed, the third electric push rod drives the descending push plate 7 to descend, and then drives the support frame 81 to rotate upward around the pin shaft of the second hinge 86, so as to synchronously adjust the folding degree of each support frame 81, and the support posture is changed by the support frame 81 to fit the installation of the heliostat;

[0035] The first electric push rod 31 and the second electric push rod 41 are used as double push rod polar axes to adjust the height angle and the azimuth angle, and the adjustment of the azimuth angle and the height angle is highly coupled.

[0036] The specific working forms of the first electric push rod 31, the second electric push rod 41 and the third electric push rod are as follows:

[0037] When the motor 62 is turned on, the worm 69 is driven to rotate, the first transmission shaft 610 is driven to rotate by the meshing of the worm 69 and the worm wheel 611, the second transmission shaft 614 is driven to rotate by the meshing of the first gear 612 and the second gear 614 on the first transmission shaft 610, the second cylinder 67 is driven to rotate by the meshing of the second gear 614 and the annular tooth surface 615 on the inner side of the bottom of the second cylinder 67, the telescopic rod 64 drives the push plate 63 to do the telescopic motion by the screw thread action of the first cylinder 66 and the second cylinder 67 and the sliding limiting of the limiting block 65 and the shell 61, compared with the rotary speed reducer in the prior art, the transmission mode of the present application is relatively easy to realize the lightweight structure, convenient maintenance, and the mechanical self-locking of the push rod can be realized by the non-reverse transmission principle of the worm 69 and the worm wheel 611, and the reliability of the structure is improved.

[0038] The above only is the preferred embodiment of the present application, and does not limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A push rod type heliostat support for a solar power generation, comprising a base (1), a support column (2) rotatably arranged on the base (1), and a mounting seat (5) hingedly arranged at a top end of the support column (2), characterized in that, The base (1) is provided with an azimuth angle adjusting mechanism (3) for rotating the supporting column (2) to adjust the azimuth angle of the heliostat, the supporting column (2) is provided with a height angle adjusting mechanism (4) for adjusting the height angle of the heliostat, the upper portion of the mounting seat (5) is provided with a lifting push plate (7), the outer side of the lifting push plate (7) is provided with a plurality of radially distributed supporting components (8), the mounting seat (5) is provided with an assembly adjusting mechanism (6) for adjusting the mounting posture of the supporting components (8) through the lifting push plate (7). The azimuth angle adjusting mechanism (3) comprises a first electric push rod (31), the distal end of the first electric push rod (31) is hingedly connected with a support (32), the support (32) is fixed on the base (1), the output end of the first electric push rod (31) is hingedly connected with a first push handle (33), the end of the first push handle (33) away from the first electric push rod (31) is fixed on the supporting column (2). The height angle adjusting mechanism (4) comprises a second electric push rod (41), the distal end of the second electric push rod (41) is hingedly connected with the supporting column (2), the output end of the second electric push rod (41) is hingedly connected with a second push handle (42), the end of the second push handle (42) away from the second electric push rod (41) is fixed on the mounting seat (5). The supporting component (8) comprises a supporting frame (81), the end of the supporting frame (81) close to the lifting push plate (7) is fixed with a first hinge seat (83), the first hinge seat (83) is hingedly connected with a fixed plate (84) through a pin shaft, the fixed plate (84) is fixed on the lifting push plate (7), the fixed plate (84) is provided with a limiting groove (841) for limiting the sliding of the pin shaft, the bottom of the end of the supporting frame (81) close to the lifting push plate (7) is fixed with a second hinge seat (86), the second hinge seat (86) is hingedly connected with a supporting plate (85) through a pin shaft, the bottom of the supporting plate (85) is fixed with a fixed column (87), the assembly adjusting mechanism (6) comprises a third electric push rod, the bottom of the third electric push rod is fixed with a mounting disc (88), the mounting disc (88) is fixed on the mounting seat (5), the outer side of the mounting disc (88) is fixed with an ear plate (89) fixedly connected with the fixed column (87).

2. A pusher rod type heliostat mounting for a solar thermal power plant according to claim 1, characterized in that, A plurality of uniformly distributed fixed seats (82) are fixed on the supporting frame (81).

3. A pusher rod type heliostat mounting for a solar thermal power plant according to claim 1, characterized in that, The first electric push rod (31), the second electric push rod (41) and the third electric push rod all comprise a shell (61) and a motor (62) fixed on the outer side of the shell (61), the inner side of the shell (61) is fixed with a partition plate (68), the partition plate (68) divides the space in the shell (61) into a transmission chamber and a pushing chamber, the transmission chamber is provided with a transmission assembly, the pushing chamber is provided with a pushing assembly which extends and retracts under the transmission of the transmission assembly.

4. A pusher rod type heliostat mounting for a solar power tower according to claim 3, characterized in that, The transmission assembly comprises a worm (69), a first transmission shaft (610) and a second transmission shaft (613), the worm (69) is fixed to the output end of the motor (62), the worm (69) is rotatably connected with the shell (61), the first transmission shaft (610) and the second transmission shaft (613) are both rotatably connected with the shell (61), the first transmission shaft (610) is fixed with a worm gear (611) engaged with the worm (69), one end of the first transmission shaft (610) extends into the propulsion chamber and is fixed with a first gear (612), the second transmission shaft (613) is fixed with a second gear (614) engaged with the first gear (612).

5. A pusher rod type heliostat mounting for a solar power tower plant according to claim 4, characterized in that, The propulsion assembly comprises a first cylinder (66) and a second cylinder (67), the second cylinder (67) is rotatably connected with the partition plate (68), the first cylinder (66) is sleeved in the second cylinder (67) and is threadedly connected with the second cylinder (67), the bottom inner side of the second cylinder (67) is provided with an annular tooth surface (615) engaged with the second gear (614), the top of the first cylinder (66) is fixed with a limiting block (65) slidingly limited in the shell (61), the top of the limiting block (65) is fixed with an extension rod (64), the extension rod (64) penetrates to the outside of the shell (61) and is fixed with a push plate (63).

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