Heliostat mirror and heliostat

Abstract

The utility model belongs to the technical field of solar thermal power generation, disclose a heliostat frame and heliostat. Heliostat frame includes mirror support component and mirror connecting assembly, at least one mirror connecting assembly is installed in mirror support component, mirror connecting assembly includes adjusting piece and cementing piece, the first end of adjusting piece is connected in mirror support component, the first end of cementing piece is set up in the second end of adjusting piece, the second end of cementing piece is connected in the back light surface of heliostat reflecting surface, through setting adjusting piece instead of the part or all gasket between cementing piece and mirror support component, reduced the gasket use quantity of heliostat frame, improved the convenience when heliostat frame assembled, the first end of adjusting piece and mirror support component form at least two surface contact sites, through at least two surface contact sites's design, increase the contact area of adjusting piece and mirror support component, guarantee that adjusting piece and mirror support component have higher connecting stability.

Description

Technical Field

[0001] This utility model relates to the field of solar thermal power generation technology, and in particular to a heliostat frame and a heliostat. Background Technology

[0002] Solar energy, as a renewable and inexpensive energy source, is widely used, especially in the field of concentrated solar power (CSP). Among them, tower CSP has attracted much attention due to its unique advantages, such as high heat collection efficiency, high thermal conversion efficiency, high-temperature heat storage capability, and suitability for large-scale application through combined operation.

[0003] Heliostats are crucial for tower-type solar thermal power generation. Large-area heliostats focus sunlight onto a single collector, which converts solar energy into heat. This heat is then used to generate steam to drive a turbine for power generation. Therefore, ensuring the precision of the heliostat's surface shape allows for efficient focusing of light, maximizing power generation efficiency.

[0004] According to the relevant technology, shims are manually installed on the sub-beam based on the surface shape test results of the heliostat, and then the heliostat reflector surface is connected to the sub-beam with bolts to adjust the surface shape of the heliostat reflector surface. However, when the curvature of the heliostat surface is large, a large number of shims are required, and the length of the bolts also needs to be increased, resulting in a large amount of work and high costs. Utility Model Content

[0005] The purpose of this utility model is to provide a heliostat frame and heliostat, which aims to solve the problem that the existing technology has a large number of adjusting shims between the heliostat and the sub-beam, resulting in a large amount of operation and high cost. The heliostat frame and heliostat use adjusting shims to adjust the surface shape of the heliostat, which is simple to operate, has a simple structure, and effectively reduces costs.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A heliostat frame includes a mirror support member and a mirror connection assembly, wherein at least one of the mirror connection assemblies is mounted on the mirror support member;

[0008] The reflector connection assembly includes an adjustment piece and an adhesive piece. A first end of the adjustment piece is connected to the reflector support member, and a first end of the adhesive piece is disposed at the second end of the adjustment piece. The second end of the adhesive piece is connected to the back surface of the heliostat's reflecting surface.

[0009] The first end of the adjustment piece has at least two surface contact points with the mirror support member.

[0010] In some possible implementations, the adjustment piece includes an intermediate structural member and two connectors. The intermediate structural member includes a top plate and two side plates. The top plate is connected to a first end of the adhesive piece by a first fastener. The two connectors are respectively disposed at the ends of the two side plates away from the top plate. Each connector is connected to the reflector support member by a second fastener.

[0011] In some possible implementations, the intermediate structural member has an overall U-shaped structure, with the two connectors respectively disposed on the inner side of the two side plates, or the two connectors respectively disposed on the outer side of the two side plates;

[0012] The first connecting surface on each of the connectors is parallel to the mounting plane of the corresponding mirror support member; wherein,

[0013] When the connector is installed on the reflector support member, the surface of the contact surface formed by the connector and the reflector support member is the first contact surface, and the surface of the contact surface formed by the connector and the reflector support member is the mounting plane.

[0014] The two first connecting surfaces on the two connectors and the two mounting planes of the reflector support member are respectively aligned and fitted in parallel to form two surface contact positions.

[0015] In some possible implementations, the connector has a plate-like structure, and all the mounting planes on the same mirror support member are located on the same plane;

[0016] All the first connecting surfaces in the same adjustment piece are located on the same plane, and the first connecting surfaces in the same adjustment piece are parallel to the top surface of the top plate; wherein,

[0017] The top surface of the top plate is flat and is used to place the gasket.

[0018] In some possible implementations, the reflector support member includes a main beam and a secondary beam, at least one of the secondary beams is mounted on the main beam, the secondary beam has a rod-like structure, and all the reflector connection assemblies on the same secondary beam are arranged at intervals along the axis of the secondary beam; wherein,

[0019] The height of all the mirror connection assemblies on the same sub-beam gradually increases from the center to both ends along the axis of the sub-beam.

[0020] In some possible implementations, all the mirror connection assemblies on the same sub-beam include three different heights: a first mirror connection assembly, a second mirror connection assembly, and a third mirror connection assembly.

[0021] The first reflector connecting assembly has the smallest height, and at least one of the first reflector connecting assemblies is arranged at intervals along the axis of the sub-beam at the middle of the sub-beam;

[0022] The third reflector connecting assembly has the greatest height, and at least one third reflector connecting assembly is provided at each end of the sub-beam along the axis.

[0023] The height of the second reflector connection assembly is greater than the height of the first reflector connection assembly and less than the height of the third reflector connection assembly;

[0024] Along the axis of the sub-beam, between the middle and the end of the sub-beam, at least one second mirror connection assembly is provided between the innermost third mirror connection assembly and the outermost first mirror connection assembly in the same direction.

[0025] In some possible implementations, the adjusting tab in the first reflector connection assembly has the smallest height, the adjusting tab in the third reflector connection assembly has the largest height, and the adjusting tab in the second reflector connection assembly has a height greater than that of the first reflector connection assembly and a height less than that of the third reflector connection assembly.

[0026] In some possible implementations, the first fastener is a first threaded component, and the adjusting piece is connected to the adhesive piece via the first threaded component. The adhesive surface of the adhesive piece is circular, and the centers of the adhesive surfaces of all the adhesive pieces on the same sub-beam are located on the same straight line; wherein,

[0027] When the second end of the adhesive sheet is connected to the back surface of the heliostat's reflecting surface, the surface of the contact surface formed by the adhesive sheet and the back surface of the heliostat's reflecting surface is the adhesive surface.

[0028] In some possible implementations, the reflector connection assembly further includes at least one gasket disposed between the adjustment piece and the adhesive piece.

[0029] A heliostat includes a heliostat reflecting surface and a heliostat frame as described in any of the above technical solutions, wherein the second end of the adhesive sheet is mounted on the back surface of the heliostat reflecting surface.

[0030] The beneficial effects of this utility model are:

[0031] The heliostat frame provided by this utility model reduces the number of shims used in the heliostat frame by replacing some or all of the shims between the adhesive shims and the mirror support members with an adjustment piece. This not only improves the ease of assembly of the heliostat frame but also reduces the number of shims required. Furthermore, the first end of the adjustment piece forms at least two surface contact positions with the mirror support member. The adjustment piece and the mirror support member are connected at these surface contact positions. This design of at least two surface contact positions increases the contact area between the adjustment piece and the mirror support member, ensuring high connection stability and good load-bearing capacity. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of the heliostat frame provided in this embodiment of the utility model;

[0033] Figure 2 This is a cross-sectional view of the connection between the adjusting plate, the mirror support member, and the heliostat provided in this embodiment of the utility model;

[0034] Figure 3 This is a schematic diagram of the structure of the adjustment piece provided in an embodiment of the present invention;

[0035] Figure 4 This is a schematic diagram of the distribution of the adjustment piece group provided in an embodiment of this utility model.

[0036] In the picture:

[0037] 100. Mirror support component; 200. Adjustment piece; 210. First adjustment piece group; 220. Second adjustment piece group; 230. Third adjustment piece group; 240. Side plate; 250. Top plate; 260. Connector; 300. Adhesive piece; 400. Heliostat reflecting surface; 500. First threaded part; 600. Gasket. Detailed Implementation

[0038] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0039] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0040] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0041] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0042] Example 1

[0043] like Figures 1 to 4 As shown, this embodiment provides a heliostat frame, including a mirror support member 100 and a mirror connection assembly. At least one mirror connection assembly is mounted on the mirror support member 100. The mirror connection assembly includes an adjustment piece 200 and an adhesive piece 300. The first end of the adjustment piece 200 is connected to the mirror support member 100, and the first end of the adhesive piece 300 is disposed at the second end of the adjustment piece 200. The second end of the adhesive piece 300 is connected to the back surface of the heliostat reflecting surface 400. There are at least two surface contact points between the first end of the adjustment piece 200 and the mirror support member 100.

[0044] For details, please refer to Figure 2As shown, the first end of the adjusting piece 200 has at least two surface contact positions with the mirror support member 100. The adjusting piece 200 and the mirror support member 100 are connected at the surface contact positions. The presence of at least two surface contact positions between the adjusting piece 200 and the mirror support member 100 increases the contact area between them, ensuring high connection stability and providing good load-bearing capacity.

[0045] It should be noted that, see Appendix Figure 1 As shown, the reflector support member 100 typically includes a main beam and at least one secondary beam. All secondary beams are installed at intervals along the axis of the main beam, and their function is to support the heliostat reflecting surface 400. The secondary beams have a rod-like structure, and the axes of all secondary beams are perpendicular to the axis of the main beam. The cross-section of the main beam is generally circular. However, in other embodiments, the cross-section of the main beam can be elliptical, rectangular, polygonal, or irregular, etc. This application does not limit the main beam; the specific design can be made according to the actual situation. The installation of the secondary beams on the main beam can also be specifically designed according to the actual situation.

[0046] In special cases, the mirror support component 100 may not have a main beam and a secondary beam. The mirror support component 100 may be a frame that supports the heliostat reflector surface 400. Therefore, the specific structure of the mirror support component 100 is not restricted here. It can be designed according to the actual situation, as long as it can support the heliostat reflector surface 400.

[0047] In this embodiment, the adjustment piece 200 includes an intermediate structural member and two connecting members 260. The intermediate structural member includes a top plate 250 and two side plates 240. The top plate 250 is connected to the first end of the adhesive piece 300 by a first fastener. The two connecting members 260 are respectively disposed at the ends of the two side plates 240 away from the top plate 250. Each connecting member 260 is connected to the reflector support member 100 by a second fastener.

[0048] For details, please refer to the appendix. Figure 2As shown, the two connectors 260 of the adjusting piece 200 form two surface contact positions with the reflector support member 100. The adjusting piece 200 and the reflector support member 100 are connected at the two surface contact positions by a second fastener. This ensures that the adjusting piece 200 and the reflector support member 100 have sufficient contact area, guaranteeing high connection stability and good load-bearing capacity, resulting in high support stability. It is conceivable that the ends of the two side plates 240 of the intermediate structural member can be bent to form the aforementioned connectors 260, or independent connectors 260 can be installed at the ends of the two side plates 240 of the intermediate structural member. Furthermore, the number of connectors 260 can be set to three or four, for example, two or three connectors 260 arranged at an angle can be installed at the ends of the two side plates 240 of the intermediate structural member, as needed. Optionally, the first fastener can be set as one of the connectors such as bolts, screws, or rivets, and the second fastener can be set as one of the connectors such as bolts, screws, or rivets. Preferably, the first fastener is a first threaded part 500, and the second fastener is a rivet.

[0049] It should be noted that, see Figure 2 and Figure 3 As shown, typically, the two side plates 240 of the adjusting piece 200 are arranged in parallel, meaning the intermediate structural member has an overall U-shaped structure. However, in other embodiments, the two side plates 240 of the adjusting piece 200 may not be arranged in parallel; each side plate 240 can form any angle with the top plate 250. For example, the intermediate structural member may have an overall trapezoidal structure. This application does not limit the configuration of the intermediate structural member; specific designs can be made according to actual conditions. Preferably, the intermediate structural member has a U-shaped structure. It should also be further noted that in other embodiments, the adjusting piece 200 may not be a U-shaped structure; the adjusting piece 200 can also be set as a trapezoid, rectangle, or I-shape, etc., as needed.

[0050] In this embodiment, the intermediate structural member has an overall U-shaped structure. Two connectors 260 are respectively disposed on the inner sides of the two side plates 240, or on the outer sides of the two side plates 240. The first connecting surface on each connector 260 is parallel to the mounting plane of the corresponding reflector support member 100. When the connector 260 is mounted on the reflector support member 100, the surface of the contact surface formed between the connector 260 and the reflector support member 100 is the first connecting surface, and the surface of the contact surface formed between the connector 260 and the reflector support member 100 is the mounting plane. The two first connecting surfaces on the two connectors 260 and the two mounting planes of the reflector support member 100 are respectively parallel and fitted together to form two surface contact positions. It should be noted that the inner side of the two side plates 240 refers to the side where the two side plates 240 are close to each other; the outer side of the two side plates 240 refers to the side where the two side plates 240 are far apart from each other. By setting two connectors 260 on the inner side of the two side plates 240 respectively, or setting two connectors 260 on the outer side of the two side plates 240 respectively, the structure of the adjustment piece 200 is simple and symmetrical, and easy to process and manufacture.

[0051] It should be noted that, in one possible implementation, the connector 260 has a plate-like structure, and all mounting surfaces on the same reflector support member 100 are located on the same plane; all first connecting surfaces in the same adjustment piece 200 are located on the same plane, and the first connecting surfaces in the same adjustment piece 200 are parallel to the top surface of the top plate 250; wherein, the top surface of the top plate 250 is a plane and is used to place the shim 600. That is, the connector 260 in the same adjustment piece 200 is arranged parallel to the top plate 250, and the two connectors 260 are symmetrically arranged with respect to the central axis of the intermediate structural member, thus simplifying the structure of the adjustment piece 200 and reducing processing costs; in addition, the top surface of the top plate 250 is used to place the shim 600, and the shim 600 is used to adjust the distance between the top plate 250 and the heliostat reflecting surface 400. However, in other embodiments, all the mounting planes of the same mirror support member 100 may not be in the same plane, so the first connecting surfaces of the corresponding adjustment piece 200 are also not in the same plane; for example, two mounting planes in the same mirror support member 100 are distributed in a stepped manner. In this case, the first connecting surface on the connector 260 in the corresponding adjustment piece 200 should also be stepped to match the mounting plane. Therefore, the specific shape of the adjustment piece 200 can be specifically designed according to the actual situation.

[0052] In this embodiment, the reflector support member 100 includes a main beam and a secondary beam. At least one secondary beam is installed on the main beam. The secondary beam has a rod-like structure, and all reflector connecting assemblies on the same secondary beam are arranged at intervals along the axis of the secondary beam. The height of all reflector connecting assemblies on the same secondary beam gradually increases from the center to both ends along the axis of the secondary beam. Typically, to achieve better light-gathering effect on the heliostat reflector surface 400, the mirror surface of the heliostat reflector surface 400 needs to be adjusted to a curved surface. Therefore, reflector connecting assemblies of different heights are needed to adapt to the surface shape of the heliostat reflector surface 400. When the heliostat reflecting surface 400 has an arc-shaped curved surface, the height of all the mirror connecting assemblies on the same sub-beam can gradually increase from the center to both ends along the axis of the sub-beam to match the surface shape of the heliostat reflecting surface 400 and stably support the heliostat reflecting surface 400. All the mirror connecting assemblies on the same sub-beam are arranged at intervals along the axis of the sub-beam; specifically, all the mirror connecting assemblies can be arranged at intervals and collinearly along the axis of the sub-beam, or all the mirror connecting assemblies can be arranged at intervals and staggered along the axis of the sub-beam, which can be set as needed. Of course, the specific number of mirror connecting assemblies can also be set as needed.

[0053] In this embodiment, all the mirror connection assemblies on the same sub-beam include three different heights: a first mirror connection assembly, a second mirror connection assembly, and a third mirror connection assembly. The first mirror connection assembly has the smallest height, and at least one first mirror connection assembly is spaced apart along the axis of the sub-beam at the middle of the sub-beam. The third mirror connection assembly has the largest height, and at least one third mirror connection assembly is provided at each end of the sub-beam along the axis. The height of the second mirror connection assembly is greater than the height of the first mirror connection assembly but less than the height of the third mirror connection assembly. Along the axis of the sub-beam, between the middle and the end of the sub-beam, at least one second mirror connection assembly is provided between the innermost third mirror connection assembly and the outermost first mirror connection assembly in the same direction. By setting the mirror connection assemblies to three different heights, the mirror connection assemblies can provide better support for the heliostat reflecting surface 400, saving the number of shims 600 compared to using only shims 600.

[0054] In practice, optionally, this embodiment adjusts the overall height of the reflector connecting assembly by changing the height of the adjusting piece 200. The adjusting piece 200 in the first reflector connecting assembly has the smallest height, the adjusting piece 200 in the third reflector connecting assembly has the largest height, and the adjusting piece 200 in the second reflector connecting assembly has a height greater than that in the first reflector connecting assembly but less than that in the third reflector connecting assembly. Figure 4As shown, the adjustment piece 200 in this embodiment is divided into three adjustment piece groups, namely the first adjustment piece group 210, the second adjustment piece group 220, and the third adjustment piece group 230. The first adjustment piece group 210 corresponds to the adjustment piece 200 in the first reflector connection assembly, the second adjustment piece group 220 corresponds to the adjustment piece 200 in the second reflector connection assembly, and the third adjustment piece group 230 corresponds to the adjustment piece 200 in the third reflector connection assembly. The first adjustment piece group 210 includes eight adjustment pieces 200, the second adjustment piece group 220 includes four adjustment pieces 200, and the third adjustment piece group 230 includes two adjustment pieces 200. The adjustment pieces 200 of the second adjustment piece group 220 are symmetrically arranged relative to the first adjustment piece group 210, and the adjustment pieces 200 of the third adjustment piece group 230 are symmetrically arranged relative to the second adjustment piece group 220. The height of the adjustment pieces 200 in the first adjustment piece group 210 is less than the height of the adjustment pieces 200 in the second adjustment piece group 220, and the height of the adjustment pieces 200 in the second adjustment piece group 220 is less than the height of the adjustment pieces 200 in the third adjustment piece group 230. In other embodiments, the number of adjustment piece groups can be set to other quantities, such as four or five, and the number of adjustment pieces 200 in each adjustment piece group can be set as needed.

[0055] Preferably, the first fastener is a first threaded part 500, and the adjusting piece 200 is connected to the adhesive piece 300 through the first threaded part 500. The adhesive surface on the adhesive piece 300 is circular, and the centers of the adhesive surfaces of all the adhesive pieces 300 on the same sub-beam are located on the same straight line. When the second end of the adhesive piece 300 is connected to the back surface of the heliostat reflector 400, the surface of the contact surface formed by the adhesive piece 300 and the back surface of the heliostat reflector 400 is used as the adhesive surface. The first end of the adhesive sheet 300 is provided with a threaded hole, and the top plate 250 of the adjusting plate 200 is provided with a through mounting hole. The first threaded component 500 passes through the mounting hole from the side of the top plate 250 near the reflector support component 100 and is installed in the threaded hole. Because there is a certain gap between the top plate 250 of the intermediate structure and the reflector support component 100, it is convenient for the first threaded component 500 to connect the top plate 250 of the intermediate structure and the adhesive sheet 300 through the gap, which is easy to operate. The reflector support component 100 is provided with a process hole that is directly opposite to the first threaded component 500. This process hole can be used for a wrench to tighten the first fastener, which improves the convenience of operation.

[0056] Optionally, the reflector connection assembly further includes at least one shim 600, which is disposed between the adjusting piece 200 and the adhesive piece 300. By adding the shim 600 between the adjusting piece 200 and the adhesive piece 300, the height of the reflector connection assembly can be adjusted by combining the shim 600 and the adjusting piece 200. The height of the shim 600 can be set as needed. Most of the height difference between the reflector support member 100 and the heliostat reflecting surface 400 can be compensated by the adjusting piece 200, and the remaining small part of the height difference can be adjusted by the shim 600, which can reduce the number of shims 600 and reduce costs.

[0057] Example 2

[0058] This embodiment also provides a heliostat, including a heliostat reflector 400 and a heliostat frame in any of the schemes in Embodiment 1. The second end of the adhesive piece 300 is installed on the back surface of the heliostat reflector 400, so that the heliostat frame and the heliostat reflector 400 have high connection stability.

[0059] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A heliostat frame, characterized in that, It includes a mirror support member (100) and a mirror connection assembly, at least one of the mirror connection assemblies being mounted on the mirror support member (100); The reflector connection assembly includes an adjustment piece (200) and an adhesive piece (300). The first end of the adjustment piece (200) is connected to the reflector support member (100). The first end of the adhesive piece (300) is disposed at the second end of the adjustment piece (200), and the second end of the adhesive piece (300) is connected to the backlight surface of the heliostat reflecting surface (400). The first end of the adjustment piece (200) has at least two surface contact points with the mirror support member (100).

2. The heliostat frame according to claim 1, characterized in that, The adjustment piece (200) includes an intermediate structural member and two connecting pieces (260). The intermediate structural member includes a top plate (250) and two side plates (240). The top plate (250) is connected to the first end of the adhesive piece (300) by a first fastener. The two connecting pieces (260) are respectively disposed at the ends of the two side plates (240) away from the top plate (250). Each connecting piece (260) is connected to the reflector support member (100) by a second fastener.

3. The heliostat frame according to claim 2, characterized in that, The intermediate structural member has a U-shaped structure, and the two connecting members (260) are respectively disposed on the inner side of the two side plates (240), or the two connecting members (260) are respectively disposed on the outer side of the two side plates (240); The first connecting surface on each of the connectors (260) is parallel to the mounting plane of the corresponding mirror support member (100); wherein, When the connector (260) is installed on the mirror support member (100), the surface of the contact surface formed by the connector (260) and the mirror support member (100) is the first contact surface, and the surface of the contact surface formed by the connector (260) and the mirror support member (100) is the mounting plane. The two first connecting surfaces on the two connectors (260) and the two mounting planes of the mirror support member (100) are respectively aligned and fitted in parallel to form two surface contact positions.

4. The heliostat frame according to claim 3, characterized in that, The connector (260) has a plate-like structure, and all the mounting planes on the same mirror support member (100) are located on the same plane; All the first connecting surfaces in the same adjustment piece (200) are located on the same plane, and the first connecting surfaces in the same adjustment piece (200) are parallel to the top surface of the top plate (250); wherein, The top surface of the top plate (250) is flat and is used to place the gasket (600).

5. The heliostat frame according to claim 2, characterized in that, The reflector support member (100) includes a main beam and a secondary beam, at least one of the secondary beams is mounted on the main beam, the secondary beam has a rod-like structure, and all the reflector connection assemblies on the same secondary beam are arranged at intervals along the axis of the secondary beam; wherein, The height of all the mirror connection assemblies on the same sub-beam gradually increases from the center to both ends along the axis of the sub-beam.

6. The heliostat frame according to claim 5, characterized in that, All the mirror connection assemblies on the same sub-beam include three different heights: a first mirror connection assembly, a second mirror connection assembly, and a third mirror connection assembly. The first reflector connecting assembly has the smallest height, and at least one of the first reflector connecting assemblies is arranged at intervals along the axis of the sub-beam at the middle of the sub-beam; The third reflector connecting assembly has the greatest height, and at least one of the third reflector connecting assemblies is respectively provided at both ends of the sub-beam along the axis. The height of the second reflector connection assembly is greater than the height of the first reflector connection assembly and less than the height of the third reflector connection assembly; Along the axis of the sub-beam, between the middle and the end of the sub-beam, at least one second mirror connection assembly is provided between the innermost third mirror connection assembly and the outermost first mirror connection assembly in the same direction.

7. The heliostat frame according to claim 6, characterized in that, The adjustment piece (200) in the first reflector connection assembly has the smallest height, the adjustment piece (200) in the third reflector connection assembly has the largest height, and the adjustment piece (200) in the second reflector connection assembly has a height greater than the adjustment piece (200) in the first reflector connection assembly and a height less than the adjustment piece (200) in the third reflector connection assembly.

8. The heliostat frame according to claim 5, characterized in that, The first fastener is a first threaded component (500), and the adjusting piece (200) is connected to the adhesive piece (300) through the first threaded component (500). The adhesive surface of the adhesive piece (300) is circular, and the centers of the adhesive surfaces of all the adhesive pieces (300) on the same sub-beam are located on the same straight line; wherein, When the second end of the adhesive sheet (300) is connected to the back surface of the heliostat reflector (400), the surface of the contact surface formed by the adhesive sheet (300) and the back surface of the heliostat reflector (400) is the adhesive surface.

9. The heliostat frame according to any one of claims 1-8, characterized in that, The reflector connection assembly further includes at least one gasket (600), which is disposed between the adjustment piece (200) and the adhesive piece (300).

10. A heliostat, characterized in that, It includes a heliostat reflector (400) and a heliostat frame as described in any one of claims 1-9, wherein the second end of the adhesive piece (300) is mounted on the back surface of the heliostat reflector (400).

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