A heliostat frame and a heliostat

Abstract

The present invention discloses a heliostat frame and a heliostat. A frame body is sleeved on the periphery of an external heliostat, and a plurality of wind load balancing components including a first wing plate, a second wing plate and a connecting member are arranged on the frame body; the two wing plates are oppositely arranged on both sides of the frame body, and are respectively rotatably connected to the frame body, and the two wing plates are connected by the connecting member; a reset member is arranged corresponding to the wing plate. When there is no wind load or the wind load is uniform, the two wing plates are in the initial position under the action of the reset member; when the wind load received by the first wing plate is greater than the wind load received by the second wing plate, the first wing plate is compressed by the wind, the opening angle is small, and the windward area is reduced, while the connecting member will push the second wing plate to open under the action of the first wing plate, so that the windward area of the second wing plate is increased, providing more wind load torque and reducing the overall torque generated by the unbalanced wind load on the heliostat, solving the problem that the existing heliostat generates a large torque load due to uneven wind load received.

Description

Technical Field

[0001] The present invention belongs to the technical field of solar power generation, and particularly relates to a heliostat frame and a heliostat. Background Art

[0002] In the energy field, solar energy, as a clean and renewable energy source, has been increasingly applied. In the field of solar power generation, there are two solar power generation methods: photovoltaic power generation and thermal power generation. With the development of science and technology, especially the rise of computer control technology, solar thermal power generation technology is an emerging solar energy utilization technology after photovoltaic power generation technology. Solar thermal power generation is to collect the energy of direct sunlight in a concentrated manner through a large number of reflectors, heat the working medium, generate high-temperature and high-pressure steam, and drive a steam turbine to generate electricity with the steam.

[0003] Tower-type solar thermal power generation uses a large number of directional reflectors (heliostats) to concentrate sunlight on a central heat exchanger (absorber) installed on the top of a tower, and drives a turbine to rotate by heating the fluid inside to generate electricity. Among them, the heliostat is often subject to unbalanced wind loads during operation, requiring its transmission components to provide a large torque to overcome the wind loads and drive the heliostat to move. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a heliostat frame and a heliostat to solve the problem that the existing heliostat generates a large torque load due to uneven wind loads.

[0005] To solve the above problems, the technical solution of the present invention is as follows:

[0006] A heliostat frame of the present invention includes:

[0007] A frame body for sleeving an external heliostat;

[0008] A plurality of wind load balancing components arranged on the periphery of the frame body;

[0009] Wherein, the wind load balancing component includes a first wing plate, a second wing plate and a connecting member;

[0010] The first wing plate and the second wing plate are both rotatably connected to the frame body and are respectively arranged on opposite sides of the frame body, and both the first wing plate and the second wing plate face the backlight side of the external heliostat;

[0011] Two ends of the connecting member are respectively movably connected to the first wing plate and the second wing plate;

[0012] A plurality of resetting members, the fixed ends of the plurality of resetting members are all arranged on the frame body, and the actuating ends of the resetting members are connected to the corresponding first wing plate or the second wing plate.

[0013] For the heliostat frame of the present invention, the first wing plate and the second wing plate are respectively arranged on the diagonal sides of the frame body.

[0014] For the heliostat frame of the present invention, the connecting member is connected to the first wing plate and the second wing plate through a ball head bearing or a universal joint.

[0015] For the heliostat frame of the present invention, the connecting member is a guide rod, and the material of the guide rod is a rigid lightweight material.

[0016] For the heliostat frame of the present invention, it further includes a plurality of pre-tightening units, and the pre-tightening units are respectively installed on the corresponding reset members for adjusting the initial elastic force of the reset members.

[0017] For the heliostat frame of the present invention, the reset member is a torsion spring, and the pre-tightening unit is a pre-tightening bolt.

[0018] For the heliostat frame of the present invention, the number of the wind load balancing components is four;

[0019] Among them, the four first wing plates are respectively the upper left wing plate, the upper right wing plate, the lower right wing plate and the lower left wing plate; the four second wing plates are respectively the upper right wing plate, the lower right wing plate, the lower left wing plate and the upper left wing plate.

[0020] For the heliostat frame of the present invention, the lengths of the upper left wing plate, the upper right wing plate, the lower left wing plate and the lower right wing plate are half of the length of the external heliostat;

[0021] The lengths of the upper left wing plate, the lower left wing plate, the upper right wing plate and the lower right wing plate are half of the width of the external heliostat.

[0022] A heliostat of the present invention includes the above-mentioned heliostat frame.

[0023] Due to the adoption of the above technical solutions, the present invention has the following advantages and positive effects compared with the prior art:

[0024] In an embodiment of the present invention, a frame body is sleeved on the periphery of an external heliostat, and a plurality of wind load balancing components including a first wing plate, a second wing plate and a connecting member are arranged on the frame body; the two wing plates are oppositely arranged on both sides of the frame body, and are respectively rotatably connected to the frame body, and the two wing plates are connected by the connecting member; meanwhile, a reset member corresponding to the two wing plates is provided. When there is no wind load or the wind load is uniform, the two wing plates are in an initial position under the action of the reset member; when the wind load received by the first wing plate is greater than that received by the second wing plate, the first wing plate is compressed by the wind, the opening angle is small, and the windward area is reduced, and the connecting member connected to the two wing plates will push the second wing plate to open under the action of the first wing plate, so that the windward area of the second wing plate is increased, providing more wind load torque, thereby improving the torque balance effect, reducing the overall torque generated by the unbalanced wind load on the heliostat, enabling the driving mechanism to drive the heliostat to rotate more easily, and solving the problem that the existing heliostat generates a large torque load due to uneven wind load reception. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 are schematic diagrams of the heliostat frame and the heliostat of the present invention;

[0026] Figure 2 are enlarged schematic diagrams of the heliostat frame and the heliostat of the present invention.

[0027] Description of the reference numerals: 1: external heliostat; 2: upper left wing plate; 3: upper right wing plate; 4: lower left wing plate; 5: lower right wing plate; 6: upper left wing plate; 7: lower left wing plate; 8: upper right wing plate; 9: lower right wing plate; 10: reset member; 11: frame body; 12: connecting member. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The following further describes in detail a heliostat frame and a heliostat proposed by the present invention with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will be clearer according to the following description and the claims.

[0029] Refer to Figure 1 and Figure 2 , in one embodiment, a heliostat frame includes a frame body 11, a plurality of wind load balancing components and a plurality of reset members 10. The frame body 11 is used to sleeve the external heliostat 1. The wind load balancing components are arranged on the periphery of the frame body 11.

[0030] Among them, the wind load balancing component includes a first wing plate, a second wing plate and a connecting member 12. The first wing plate and the second wing plate are both rotatably connected to the frame body 11, and are respectively arranged on opposite sides of the frame body 11. The first wing plate and the second wing plate both face the backlight side of the external heliostat 1 to avoid affecting the performance of the light-receiving surface of the external heliostat 1. The two ends of the connecting member 12 are respectively movably connected to the first wing plate and the second wing plate.

[0031] The fixed ends of a plurality of reset members 10 are all arranged on the frame body 11, and the actuating ends of the reset members 10 are connected to the corresponding first wing plate or second wing plate.

[0032] In this embodiment, a frame body 11 is sleeved on the periphery of the external heliostat 1, and a plurality of wind load balance assemblies including a first wing plate, a second wing plate and a connecting member 12 are arranged on the frame body 11. The two wing plates are oppositely arranged on both sides of the frame body 11, and are respectively rotatably connected to the frame body 11, and the two wing plates are connected by the connecting member 12. At the same time, reset members 10 corresponding to the two wing plates are provided. When there is no wind load or the wind load is uniform, the two wing plates are in the initial position under the action of the reset members 10. When the wind load received by the first wing plate is greater than the wind load received by the second wing plate, the first wing plate is compressed by the wind, the opening angle is small, and the windward area is reduced. The connecting member 12 connected to the two wing plates will push the second wing plate to open under the action of the first wing plate, so that the windward area of the second wing plate is increased, providing more wind load torque, thereby improving the torque balance effect, reducing the overall torque generated by the unbalanced wind load on the heliostat, enabling the driving mechanism to drive the heliostat to rotate more easily, and solving the problem that the existing heliostat generates a large torque load due to uneven wind load.

[0033] At the same time, after the heliostat frame of this embodiment reduces the overall torque generated by the unbalanced wind load on the heliostat, the power of the driving mechanism required for the heliostat can be further reduced, thereby reducing the overall cost of the heliostat and increasing the maximum working wind speed of the heliostat.

[0034] The specific structure of the heliostat frame of this embodiment will be further described below:

[0035] In this embodiment, the first wing plate and the second wing plate can be respectively arranged on the diagonal sides of the frame body 11, that is, the connection line between the centers of the two wing plates passes through the center point of the external heliostat 1, so that the torques generated by the two wing plates on the external heliostat 1 can be balanced. The first wing plate and the second wing plate can be connected to the frame body 11 by means of hinge connection to ensure freedom of movement, so as to realize the rotational connection relative to the frame body 11.

[0036] In this embodiment, the connecting member 12 is connected to the first wing plate and the second wing plate through a ball head bearing or a universal joint. Among them, the connecting member 12 is a guide rod, and the material of the guide rod is a rigid lightweight material, but it does not have to be a straight rod itself, and its shape can be set into an arc or other shapes according to the structure of the heliostat to avoid interference when the heliostat rotates.

[0037] In this embodiment, the heliostat frame further includes a plurality of pre-tightening units, and the pre-tightening units are respectively installed on the corresponding reset members 10 for adjusting the initial elastic force of the reset members 10.

[0038] Specifically, the reset member 10 can be a torsion spring, and the pre-tensioning unit is a pre-tensioning bolt to adjust the initial elastic force of the torsion spring. It can be adjusted according to factors such as the actual wind load magnitude and the position of the heliostat in the mirror field to achieve the best balance effect.

[0039] In this embodiment, the number of the wind load balancing components can specifically be four. Among them, the four first wing plates are the upper left wing plate 2, the upper right wing plate 8, the lower right wing plate 5, and the lower left wing plate 7 respectively. The four second wing plates are the upper right wing plate 3, the lower right wing plate 9, the lower left wing plate 4, and the upper left wing plate 6 respectively.

[0040] Specifically, the lengths of the upper left wing plate 2, the upper right wing plate 3, the lower left wing plate 4, and the lower right wing plate 5 are half of the length of the external heliostat 1. The lengths of the upper left wing plate 6, the lower left wing plate 7, the upper right wing plate 8, and the lower right wing plate 9 are half of the width of the external heliostat 1. That is, the eight wing plates cooperate to achieve a complete wrap of the periphery of the external heliostat 1.

[0041] Under the action of the eight wing plates located on the periphery of the external heliostat 1, through the action of the connecting rods between each pair, the overall torque generated by the unbalanced wind load on the heliostat can be reduced, enabling the driving mechanism to drive the heliostat to rotate more easily.

[0042] In other embodiments, the number of wing plates on the heliostat frame can be adjusted according to the size of the heliostat to play a more balanced role in balancing torque. However, the total number of wing plates should be an even number to ensure symmetry.

[0043] In this embodiment, if the widths of the first wing plate and the second wing plate are too small, the effect of balancing the torque of the uneven wind load will be weak, while if the widths are too large, the torque received by the external heliostat 1 in some wind load scenarios will be too large. Therefore, the widths can be adjusted according to the on-site wind load.

[0044] Embodiment 2

[0045] This embodiment provides a heliostat, which includes the heliostat frame in the first embodiment above. By sleeving a frame body 11 on the periphery of the heliostat and arranging a plurality of wind load balance components including a first wing plate, a second wing plate and a connecting member 12 on the frame body 11. The two wing plates are oppositely arranged on both sides of the frame body 11, and are respectively rotatably connected to the frame body 11, and the two wing plates are connected by the connecting member 12. At the same time, a reset member 10 corresponding to the two wing plates is provided. When there is no wind load or the wind load is uniform, the two wing plates are in the initial position under the action of the reset member 10. When the wind load received by the first wing plate is greater than that received by the second wing plate, the first wing plate is compressed by the wind, the opening angle is small, and the windward area is reduced. The connecting member 12 connected to the two wing plates will push the second wing plate to open under the action of the first wing plate, so that the windward area of the second wing plate is increased, providing more wind load torque, thereby improving the torque balance effect, reducing the overall torque generated by the unbalanced wind load on the heliostat, enabling the driving mechanism to drive the heliostat to rotate more easily, and solving the problem that the existing heliostat generates a large torque load due to uneven wind load.

[0046] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, provided that these changes fall within the scope of the claims of the present invention and their equivalent technologies, they still fall within the protection scope of the present invention.

Claims

1. A heliostat frame, characterized in that, Comprising: A frame body for sheathing an external heliostat; A plurality of wind load balancing components arranged on the periphery of the frame body; Wherein, the wind load balancing component includes a first wing plate, a second wing plate and a connecting member; Both the first wing plate and the second wing plate are rotatably connected to the frame body, and are respectively arranged on the upper and lower sides and / or the left and right sides of the frame body, and both the first wing plate and the second wing plate face the backlight side of the external heliostat; Both ends of the connecting member are movably connected to the first wing plate and the second wing plate respectively; A plurality of reset members, the fixed ends of the plurality of reset members are arranged on the frame body, and the actuating ends of the reset members are connected to the corresponding first wing plate or second wing plate.

2. The heliostat frame according to claim 1, wherein, The first wing plate and the second wing plate are respectively arranged on the diagonal sides of the frame body.

3. The heliostat frame according to claim 1, characterized in that, The connecting member is connected to the first wing plate and the second wing plate through a ball head bearing or a universal joint.

4. The heliostat frame according to claim 3, characterized in that, The connecting member is a guide rod, and the material of the guide rod is a rigid lightweight material.

5. The heliostat frame according to claim 1, characterized in that, It further includes a plurality of pre-tightening units, and the pre-tightening units are respectively installed on the corresponding reset members for adjusting the initial elastic force of the reset members.

6. The heliostat frame according to claim 5, wherein, The reset member is a torsion spring, and the pre-tightening unit is a pre-tightening bolt.

7. The heliostat frame according to claim 1, characterized in that, The number of the wind load balancing components is four; Wherein, the four first wing plates are respectively an upper left wing plate, an upper right wing plate, a left upper wing plate and a left lower wing plate; the four second wing plates are respectively a lower left wing plate, a lower right wing plate, a right upper wing plate and a right lower wing plate.

8. The heliostat frame according to claim 7, wherein, The lengths of the upper left wing plate, the upper right wing plate, the lower left wing plate and the lower right wing plate are half of the length of the external heliostat; The lengths of the left upper wing plate, the left lower wing plate, the right upper wing plate and the right lower wing plate are half of the width of the external heliostat.

9. A heliostat, characterized in that, Comprising the heliostat frame according to claims 1 to 8.

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