Heliostat mirror

Abstract

The utility model provides a heliostat mirror frame, include: main girder, set up first support layer on main girder, the second support layer who is configured for bearing sub mirror, second support layer includes a plurality of second support frame interval setting on first support layer, and at least two second support frames form a sub mirror mounting area for bearing sub mirror, at least part second support frame's length is different, and / or, at least part second support frame's extension direction is different to form different sub mirror mounting area. The utility model provides technical scheme to design to a plurality of second support frame length and extension direction, make a plurality of sub mirror mounting area formed by a plurality of second support frame have at least part difference, and then make a plurality of sub mirror mounting area can be according to actual demand and splice the heliostat of different contour and install splice out different shape contour, be favorable to according to actual environment and other factors more accurately design and control the focusing effect of heliostat, improve photo-thermal conversion efficiency.

Description

Technical Field

[0001] This utility model relates to the field of heliostat technology, and more specifically, to a heliostat frame. Background Technology

[0002] Currently, solar energy, as a renewable and inexpensive energy source, is widely used, especially in the field of concentrated solar power (CSP). Tower CSP systems, for example, have attracted significant attention due to their unique advantages, such as high heat collection efficiency, high thermal conversion efficiency, high-temperature heat storage, and suitability for large-scale applications. In a tower CSP system, the heliostat, as the core concentrating element, primarily focuses and reflects sunlight onto the receiver at the top of the tower to generate high-temperature steam that drives a turbine to generate electricity. Therefore, the design and performance of the heliostat directly affect the efficiency and reliability of the entire tower CSP system. Existing tower CSP systems use heliostats of various shapes, often rectangular or rectangular. Preferably, to form uniform circular or near-circular light spots, some heliostats and their frames are designed with near-circular outlines; the heliostats themselves are designed with a near-circular profile, and the corresponding frames are also designed with a near-circular outer profile.

[0003] For existing heliostats and heliostat frames, when the heliostat is a large monolithic mirror, there will be difficulties in the design, transfer, and installation of both the heliostat frame and the heliostat itself. At the same time, there is the problem of fragility, which is not conducive to the large-scale production and assembly of heliostats and their compatible heliostat frames.

[0004] To address the aforementioned issues, existing technologies have proposed a design that divides the heliostat into multiple parts to facilitate transfer and assembly. Based on this, the heliostat frame also features multiple sub-mirror mounting areas corresponding to each sub-heliostat. However, this design necessitates complex geometric structures and connection methods for the heliostat frame, which increases the difficulty of the manufacturing process, raising production costs and time. Furthermore, the multiple sub-mirror mounting areas in existing technologies are generally designed with equal length and parallel alignment, and the heliostats that can be assembled are typically rectangular or rectangular, making it difficult to meet the design and assembly requirements for near-circular or other shapes. Utility Model Content

[0005] This utility model provides a heliostat frame to solve the problem that the existing heliostat frame designs are complex and difficult to meet the design and assembly requirements of near-circular and other shapes.

[0006] To address the aforementioned problems, this utility model provides a heliostat frame, comprising: a main beam; a first support layer disposed on the main beam; and a second support layer configured to support sub-mirrors, the second support layer including a plurality of second support frames spaced apart on the first support layer, at least two second support frames forming a sub-mirror mounting area; wherein at least some of the second support frames have different lengths and / or at least some of the second support frames have different extension directions to form different sub-mirror mounting areas.

[0007] Furthermore, all sub-mirror mounting areas are coplanar and extend in a direction parallel to the axis of the main beam, and all sub-mirror mounting areas are sequentially distributed along the first radial direction of the main beam; wherein, the first radial direction of the main beam is a radial direction parallel to the sub-mirror mounting area; each sub-mirror mounting area is formed by at least two adjacent second support frames of the same length.

[0008] Furthermore, the second support frame is a purlin, and multiple purlins are installed at intervals along the first radial direction of the main beam in the first support layer; the axes of all the purlins are parallel to each other, and the axis of any one purlin is parallel to the axis of the main beam; among them, all the purlins include at least three lengths of purlins, and along the first radial direction of the main beam, the length of the purlins gradually decreases from the main beam to both sides.

[0009] Furthermore, all purlins include three lengths: first purlin, second purlin, and third purlin, with multiple first purlins, second purlins, and third purlins. The first purlin is the longest, and multiple first purlins are spaced apart along the first radial direction of the main beam in the middle of the first support layer. The third purlin is the shortest, and multiple third purlins are spaced apart along the first radial direction of the main beam on the outside of the first support layer. The second purlin is longer than the third purlin but shorter than the first purlin, and multiple second purlins are spaced apart along the first radial direction of the main beam between the innermost third purlin and the outermost first purlin on the first support layer. Among these, the portion of the first support layer closest to the main beam axis along the first radial direction of the main beam is the middle of the first support layer; the portions on both sides of the first support layer that are far from the main beam axis along the first radial direction of the main beam are the outer portions of the first support layer.

[0010] Furthermore, the outer contour formed by splicing multiple sub-lens mounting areas is approximately circular, so that the lenses installed on the multiple sub-lens mounting areas are spliced ​​to form an approximately circular shape.

[0011] Furthermore, the first support layer includes a plurality of first support frames, which are spaced apart on the main beam along the axis of the main beam; wherein, the second support frame is mounted on the first support frame, and any second support frame is supported by at least two first support frames.

[0012] Furthermore, the first support frame is a secondary beam, and multiple secondary beams are installed on the main beam at intervals along the axis of the main beam; the axes of all the secondary beams are parallel to each other, and the axis of any secondary beam is perpendicular to the axis of the main beam, and the center of the axis of all the secondary beams is located on one side of the axis of the main beam; among them, all the secondary beams include at least three lengths, and the length of the secondary beams gradually decreases from the middle of the main beam to both sides along the axis of the main beam.

[0013] Furthermore, all the secondary beams include three lengths: a first secondary beam, a second secondary beam, and a third secondary beam. There are multiple first secondary beams, second secondary beams, and third secondary beams. The first secondary beam is the longest, and multiple first secondary beams are spaced apart along the axis of the main beam in the middle of the main beam. The third secondary beam is the shortest, and multiple third secondary beams are spaced apart along the axis of the main beam on both sides of the main beam. The second secondary beam is longer than the third secondary beam but shorter than the first secondary beam, and multiple second secondary beams are spaced apart along the axis of the main beam between the innermost third secondary beam and the outermost first secondary beam.

[0014] Furthermore, the heliostat frame also includes a secondary beam connector and diagonal braces; each secondary beam is mounted on the main beam via a secondary beam connector, and at least one diagonal brace is provided at both ends of any secondary beam connector and the secondary beam on it.

[0015] Furthermore, one end of the sub-beam is the first end, and the other end is the second end; the diagonal brace connected to the first end of the sub-beam on the same sub-beam connecting seat is the first diagonal brace, and the connection point between the first diagonal brace and the sub-beam connecting seat is located on the side of the sub-beam connecting seat away from the sub-beam and close to the first end of the sub-beam; the diagonal brace connected to the second end of the sub-beam on the same sub-beam connecting seat is the second diagonal brace, and the connection point between the second diagonal brace and the sub-beam connecting seat is located on the side of the sub-beam connecting seat away from the sub-beam and close to the second end of the sub-beam; wherein, there is one first diagonal brace and one second diagonal brace, the connection point between the first diagonal brace and the sub-beam is located at the first end of the sub-beam, and the connection point between the second diagonal brace and the sub-beam is located at the second end of the sub-beam.

[0016] Furthermore, the heliostat frame also includes an adapter assembly, wherein any second support frame is connected to at least one first support frame that provides support thereto via the adapter assembly.

[0017] Furthermore, the adapter assembly includes an adapter base, a first fastener, and a second fastener. The adapter base is a right-angled base formed by connecting two mutually perpendicular adapter plates. One side of the adapter plate abuts against the side of the first support frame, and the other side of the adapter plate abuts against the side of the second support frame. One side of the adapter plate is connected to the first support frame via the first fastener, and the other side of the adapter plate is connected to the second support frame via the second fastener. In this configuration, any second support frame is connected to all first support frames that provide support to it via the adapter assembly.

[0018] The present invention provides a heliostat frame comprising: a main beam; a first support layer disposed on the main beam; and a second support layer configured to support sub-mirrors, the second support layer including a plurality of second support frames spaced apart on the first support layer, at least two second support frames forming a sub-mirror mounting area; wherein at least some of the second support frames have different lengths and / or at least some of the second support frames have different extension directions to form different sub-mirror mounting areas.

[0019] This design utilizes the main beam and the first support layer to provide stable support for multiple second support frames, ensuring the overall structural strength of the heliostat frame and the stability and reliability of the formation of multiple sub-mirror mounting areas, thereby guaranteeing the reliability of lens assembly. The multiple second support frames form multiple sub-mirror mounting areas, improving the convenience of sub-mirror mounting area design and formation. Furthermore, by designing the length and extension direction of the multiple second support frames, the resulting sub-mirror mounting areas are at least partially different. This allows the multiple sub-mirror mounting areas to be assembled into different contours according to actual needs, and to install heliostats of different shapes. This facilitates more precise design and control of the heliostat's focusing effect based on actual environmental factors, improving photothermal conversion efficiency, and enabling the assembled heliostat to more effectively concentrate sunlight, reduce light spot distortion, and enhance light-gathering performance. Attached Figure Description

[0020] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0021] Figure 1 A schematic diagram of the structure of a heliostat frame provided in an embodiment of the present invention is shown;

[0022] Figure 2 It shows Figure 1 A top view of the heliostat frame;

[0023] Figure 3 It shows Figure 1 A front view of a heliostat frame;

[0024] Figure 4 It shows Figure 1 A schematic diagram of the installation of the secondary beam and the second support frame of the heliostat frame.

[0025] The above figures include the following reference numerals:

[0026] 10. Main beam;

[0027] 20. First support frame; 201. Strip support surface; 202. Support area; 2021. First support area; 2022. Second support area; 2023. Third support area; 2024. Fourth support area; 21. Sub-beam; 211. Third sub-beam; 212. Second sub-beam; 213. First sub-beam; 22. Diagonal brace; 23. Sub-beam connecting seat;

[0028] 30. Second support frame; 31. Third purlin; 32. Second purlin; 33. First purlin;

[0029] 301. Sub-scope mounting area; 3011. First sub-scope mounting area; 3012. Second sub-scope mounting area; 3013. Third sub-scope mounting area; 302. Assembly group; 3021. First assembly group; 3022. Second assembly group; 3023. Third assembly group;

[0030] 40. Adapter assembly; 41. Adapter socket;

[0031] 501, First plane of symmetry; 502, Second plane of symmetry. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0033] like Figures 1 to 4 As shown, an embodiment of this utility model provides a heliostat frame, which includes a main beam 10, a first support layer, and a plurality of second support frames 30. The first support layer is disposed on the main beam 10. The second support layer is configured to support sub-mirrors and includes a plurality of second support frames 30. The plurality of second support frames 30 are spaced apart on the first support layer, and at least two second support frames 30 form a sub-mirror mounting area 301 for supporting sub-mirrors. At least some of the second support frames 30 have different lengths and / or at least some of the second support frames 30 have different extension directions to form different sub-mirror mounting areas 301.

[0034] In this embodiment, the main beam 10 and the first support layer provide stable support for the multiple second support frames 30, ensuring the overall structural strength of the heliostat frame and the stability and reliability of the formation of the multiple sub-mirror mounting areas 301, thereby ensuring the reliability of the lens splicing. The multiple second support frames 30 form multiple sub-mirror mounting areas 301, improving the convenience of designing and forming the sub-mirror mounting areas 301. Furthermore, by designing the length and extension direction of the multiple second support frames 30, the multiple sub-mirror mounting areas 301 formed by the multiple second support frames 30 are at least partially different. This allows the multiple sub-mirror mounting areas 301 to be spliced ​​together to form different contours and to install heliostats of different shapes and contours according to actual needs. This facilitates more precise design and control of the heliostat's focusing effect based on actual environmental factors, improves photothermal conversion efficiency, and enables the spliced ​​heliostat to more effectively concentrate sunlight, reduce light spot distortion, and enhance light-gathering performance.

[0035] It should be noted that the formation of a sub-mirror mounting area 301 by at least two second support frames 30 for supporting the sub-mirror can be understood as the formation of a sub-mirror mounting area 301 for directly or indirectly mounting the sub-mirror. Preferably, the back of the sub-mirror may be provided with a mounting plate (back plate) or similar structure. The sub-mirror is transferred to the second support frame 30 via the mounting plate. This arrangement can improve the convenience of assembling and disassembling the sub-mirror and ensure the reliability and stability of the installation.

[0036] Among them, such as Figure 1 and Figure 2 As shown, the area for installing the heliostat is composed of multiple sub-mirror mounting areas 301. Each sub-mirror mounting area 301 can have at least one sub-mirror installed to form the heliostat, and / or any sub-mirror mounting area 301 corresponds at least partially to the sub-mirror installed thereon.

[0037] It should be noted that this application does not limit the size and shape of the sub-mirrors in the sub-mirror mounting area 301. Sub-mirrors of the same size can be spliced ​​together and installed in the sub-mirror mounting area 301, or sub-mirrors of different sizes can be spliced ​​together and installed in the sub-mirror mounting area 301. The size and shape of the sub-mirrors can be specifically designed according to the actual situation. Furthermore, the number of sub-mirrors can also be specifically designed according to the actual needs.

[0038] Preferably, in this embodiment, the outer contour formed by splicing the multiple sub-lens mounting areas 301 is approximately circular, so that the lenses mounted on the multiple sub-lens mounting areas 301 are spliced ​​to form an approximately circular shape. This configuration, through the splicing of approximately circular lenses, creates a light spot that is closer to a circle, improving the efficiency of photothermal conversion, resulting in a more regular shape of the focused light spot and reducing energy loss.

[0039] Preferably, in this embodiment, the multiple sub-lens mounting areas 301 are of equal width and are equidistantly distributed. The lenses are mounted on the sub-lens mounting areas 301, and the actual outer contour of the lenses is slightly larger than that of the sub-lens mounting areas 301, so as to ensure that the lenses mounted on two spaced-apart sub-lens mounting areas 301 can be spliced ​​together.

[0040] like Figures 1 to 3 As shown, in this embodiment, all sub-lens mounting areas 301 are coplanar and their extension directions are parallel to the axis of the main beam 10. All sub-lens mounting areas 301 are sequentially distributed along the first radial direction of the main beam 10; the first radial direction of the main beam 10 is a radial direction parallel to the sub-lens mounting areas 301. This arrangement facilitates the design and molding of the sub-lens mounting areas 301, improves the convenience of lens installation, ensures the consistency and smoothness of the lens surface, simplifies the installation process, and improves assembly efficiency.

[0041] In this embodiment, the extension direction of the sub-mirror mounting area 301 can be understood as its length direction.

[0042] Each sub-lens mounting area 301 is formed by at least two adjacent second support frames 30 of the same length. This arrangement avoids the situation where, when one sub-lens mounting area 301 is formed by one second support frame 30 and another adjacent second support frame 30 of a different length, and the other second support frame 30 of a different length may also be part of another sub-lens mounting area 301 of a different length, the same second support frame 30 cannot simultaneously guarantee the support effect for both lenses.

[0043] Preferably, the extension length of the multiple sub-mirror mounting areas 301 gradually increases radially from the outer periphery of the main beam 10 towards its axis. This arrangement is more conducive to the design of the sub-mirror mounting areas 301 and the installation of the lenses. Furthermore, the variation in the extension length of the multiple sub-mirror mounting areas 301 better conforms to the changing pattern of the solar incidence angle, thus maintaining high focusing accuracy at different times. This improves the all-weather photothermal conversion efficiency of the heliostat and reduces energy loss due to light spot deformation.

[0044] It is understandable that, such as Figure 2As shown, in this embodiment, the heliostat frame has a first symmetry plane 501 and a second symmetry plane 502 that are perpendicular to each other. Both the first symmetry plane 501 and the second symmetry plane 502 are perpendicular to the plane where the multiple sub-mirror mounting areas 301 are located. The first symmetry plane 501 is parallel to the axial direction of the main beam 10. Each sub-mirror mounting area 301 is divided into two symmetrical parts by the second symmetry plane 502. The multiple sub-mirror mounting areas 301 are divided into at least three splicing groups 302 according to their extension length. The sub-mirror mounting areas 301 belonging to the same splicing group 302 have the same extension length. The multiple sub-mirror mounting areas 301 in each splicing group 302 are symmetrically distributed on both sides of the first symmetry plane 501. This arrangement achieves a near-circular distribution of the multiple sub-mirror mounting areas 301, so as to splice them together to obtain a near-circular heliostat. Specifically, in this embodiment, the plurality of sub-mirror mounting areas 301 include a first sub-mirror mounting area 3011, a second sub-mirror mounting area 3012, and a third sub-mirror mounting area 3013, which gradually increase in the extension direction. The plurality of sub-mirror mounting areas 301 are divided into three splicing groups 302 according to the extension length, namely a first splicing group 3021, a second splicing group 3022, and a third splicing group 3023. The first splicing group 3021 is formed by two first sub-mirror mounting areas 3011, which are symmetrically arranged on the outer regions on both sides of the first symmetry plane 501. The second splicing group 3022 is formed by two second sub-mirror mounting areas 3012, which are symmetrically arranged in the middle regions on both sides of the first symmetry plane 501. The third splicing group 3023 is formed by four third sub-mirror mounting areas 3013, which are symmetrically arranged in the inner regions on both sides of the first symmetry plane 501.

[0045] It should be noted that in this embodiment, the center of all the second support frames 30 is located on the second symmetry plane 502. However, in other embodiments, the center of all the second support frames 30 may not be located on the second symmetry plane 502, but may be located close to the second symmetry plane 502. This application does not impose specific restrictions here, and the design can be carried out according to the actual situation.

[0046] like Figure 1 and Figure 2As shown, the second support frame 30 consists of purlins, with multiple purlins spaced apart along the first radial direction of the main beam 10 on the first support layer. The axes of all purlins are parallel to each other, and the axis of any single purlin is parallel to the axis of the main beam 10. Among the purlins, at least three lengths are included, with the length gradually decreasing from the main beam 10 towards both sides along the first radial direction (this gradual shortening refers to the distribution of purlins of different lengths gradually shortening from the middle to both sides, rather than any two adjacent purlins having a length difference). This arrangement utilizes purlins of different lengths to construct a gradually changing support structure to adapt to the approximately circular contour of the mirror body, while ensuring balanced stress in each area, avoiding local stress concentration, and contributing to a more stable frame structure. Further, as... Figure 4 As shown, the second support frame 30 is a purlin with a U-shaped cross-section. Utilizing a U-shaped purlin helps to improve the bending resistance of the second support frame 30 while reducing material usage, and also reduces processing, manufacturing, and maintenance costs.

[0047] Specifically, all purlins include three lengths: first purlin 33, second purlin 32, and third purlin 31. There are multiple first purlins 33, second purlins 32, and third purlins 31. The first purlin 33 is the longest, and multiple first purlins 33 are spaced apart along the first radial direction of the main beam 10 at the middle of the first support layer. The third purlin 31 is the shortest, and multiple third purlins 31 are spaced apart along the first radial direction of the main beam 10 at the outer edge of the first support layer. The second purlin 32 is longer than the third purlin 31 but shorter than the first purlin 33, and multiple second purlins 32 are spaced apart along the first radial direction of the main beam 10 between the innermost third purlin 31 and the outermost first purlin 33 on the first support layer (i.e.,...). Figure 1 and Figure 2 The area where the second sub-mirror mounting area 3012 is shown is located; wherein, along the first radial direction of the main beam 10, the portion of the first support layer near the axis of the main beam 10 is the middle part of the first support layer (e.g., Figure 2 The selected area of ​​the third splicing group 3023 shown corresponds to the first support layer area; along the first radial direction of the main beam 10, the parts on both sides of the first support layer that are far from the axis of the main beam 10 are the outer part of the first support layer (e.g., Figure 2The selected areas of the two symmetrical first sub-mirror mounting areas 3011 on both sides of the first symmetry plane 501 correspond to the first support layer areas. Any one of the first sub-mirror mounting areas 3011 is formed by two third purlins 31, any one of the second sub-mirror mounting areas 3012 is formed by two second purlins 32, and any one of the third sub-mirror mounting areas 3013 is formed by two first purlins 33. The lenses are correspondingly set to three different lengths. This arrangement allows the multiple second support frames 30 to form a near-circular outer contour, enabling the heliostat to form a more circular light spot, improving the efficiency of photothermal conversion, and resulting in a more regular shape of the focused light spot.

[0048] It is understandable that, such as Figure 1 and Figure 2 As shown in the above description, "the innermost third purlin 31 on the first support layer" refers to the third purlin 31 with the innermost relative position among the plurality of third purlins 31, that is, the third purlin 31 at the edge of the first sub-mirror mounting area 3011 of the first support layer. "The outermost first purlin 33 on the first support layer" refers to the first purlin 33 with the outermost relative position among the plurality of first purlins 33, that is, the first purlin 33 at the edge of the third sub-mirror mounting area 3013 of the first support portion.

[0049] The cross-sectional shape and specific selection of the second support frame 30 can be adaptively adjusted according to actual conditions. The design of multiple second support frames 30 can also be adaptively adjusted according to actual conditions. For example, in another embodiment (not shown), multiple second support frames 30 are coplanar and parallel to each other. The length direction of the second support frame 30 is parallel to the radial direction of the main beam 10. In the radial direction from the axis of the main beam 10 towards the outer periphery of the main beam 10, the extension length of multiple second support frames 30 decreases sequentially. The difference between this embodiment and the above embodiment is that each sub-lens mounting area 301 in this embodiment is formed by two adjacent second support frames 30 with different lengths. The extension length of the sub-lens mounting area 301 is the length of the shorter second support frame 30. In this embodiment, it is necessary to ensure that the width of the second support frame 30 that simultaneously forms two sub-lens mounting areas 301 is sufficient to avoid the situation where the same second support frame 30 cannot simultaneously guarantee the support effect for two lenses. Alternatively, in another embodiment not shown in the figure, the multiple second support frames 30 are of the same length. The difference between this embodiment and the above embodiment is that the multiple second support frames 30 can be stacked and surrounded to form a honeycomb-like structure. Each sub-lens mounting area 301 is the same polygon, and the overall outer contour of the multiple sub-lens mounting areas 301 is also approximately circular. Only one type of lens needs to be processed accordingly.

[0050] It is understandable that, such as Figures 1 to 3As shown, the first support frame 20 has strip-shaped support surfaces 201. At least some of the strip-shaped support surfaces 201 have different extension lengths, and / or at least some of the strip-shaped support surfaces 201 have different extension directions. The outer contour of the area formed by the multiple strip-shaped support surfaces 201 is adapted to the outer contour of the area formed by the multiple sub-mirror mounting areas 301. This configuration optimizes the connection between the first support frame 20 and the second support frame 30 by adjusting the length and direction of the strip-shaped support surfaces 201, ensuring the support effect for the multiple second support frames 30. This is beneficial to improving the overall structural strength of the heliostat frame and avoids situations such as material waste when the outer contour of the area formed by the multiple strip-shaped support surfaces 201 is larger than the outer contour of the area formed by the multiple sub-mirror mounting areas 301, or situations such as poor support effect in areas where the contours do not overlap when the outer contour of the area formed by the multiple strip-shaped support surfaces 201 is smaller than the outer contour of the area formed by the multiple sub-mirror mounting areas 301.

[0051] In this embodiment, multiple strip support surfaces 201 are coplanar and parallel to each other. The length direction of the strip support surfaces 201 is parallel to the radial direction of the main beam 10. A support area 202 is formed between any two adjacent strip support surfaces 201. The extension length of the multiple support areas 202 gradually increases in the axial direction from both ends of the main beam 10 toward the center of the main beam 10. Specifically, in this embodiment, the support areas 202 are divided into a first support area 2021, a second support area 2022, a third support area 2023, and a fourth support area 2024 with sequentially decreasing extension lengths. Each support area 202 is divided into two symmetrical parts by a first symmetry plane 501. The first support area 2021 is divided into two symmetrical parts by a second symmetry plane 502. The second support area 2022, the third support area 2023, and the fourth support area 2024 are all two and are symmetrically distributed on both sides of the first support area 2021 in a gradually decreasing order of extension length. The multiple support areas 202 are set with equal width. Figure 2 As shown, the first support area 2021 and the second support area 2022 have the same extension length, and the width of the first support area 2021 is greater than the width of the second support area 2022. The first support area 2021, the second support area 2022, the third support area 2023, and the fourth support area 2024 jointly support the third splicing group 3023. Furthermore, the first support area 2021, the second support area 2022, and the third support area 2023 jointly support the second splicing group 3022, and the first support area 2021 and the second support area 2022 jointly support the first splicing group 3021. This arrangement ensures that the outer contour of the area formed by the multiple support areas 202 perfectly matches the outer contour of the area formed by the multiple sub-mirror mounting areas 301, thus reducing processing costs while ensuring reliable support for the multiple second support frames 30.

[0052] like Figure 1 and Figure 2As shown, the first support layer includes multiple first support frames 20, which are spaced apart along the axis of the main beam 10. Second support frames 30 are mounted on the first support frames 20, and each second support frame 30 is supported by at least two first support frames 20. Through the synergistic effect of the first support frames 20 and the second support frames 30, a stable support network is constructed, ensuring the structural stability and reliability of the mirror body under various environmental conditions. This significantly improves the wind resistance and overall strength of the mirror body, while simplifying the installation process and reducing construction difficulty.

[0053] Specifically, the first support frame 20 is a secondary beam 21, with multiple secondary beams 21 spaced along the axis of the main beam 10. The axes of all secondary beams 21 are parallel to each other, and the axis of any secondary beam 21 is perpendicular to the axis of the main beam 10. The center of the axis of all secondary beams 21 is located on one side of the axis of the main beam 10. Among the secondary beams 21, there are at least three lengths. Along the axis of the main beam 10, the length of the secondary beams 21 gradually decreases from the middle of the main beam 10 to both sides (this gradual shortening refers to the distribution of secondary beams 21 of different lengths gradually decreasing from the middle to both sides, not that there is a length difference between any two adjacent secondary beams 21). By adjusting the length and distribution of the secondary beams 21, the geometric accuracy and structural stability of the mirror body are ensured, while optimizing material usage, reducing costs, making the mirror body structure more robust, able to withstand greater loads, and improving installation accuracy and speed.

[0054] Furthermore, in this embodiment, all the secondary beams 21 include three lengths: a first secondary beam 213, a second secondary beam 212, and a third secondary beam 211. There are multiple first secondary beams 213, second secondary beams 212, and third secondary beams 211. The first secondary beam 213 is the longest, and multiple first secondary beams 213 are spaced apart along the axis of the main beam 10 at the middle of the main beam 10. The third secondary beam 211 is the shortest, and multiple third secondary beams 211 are spaced apart along the axis of the main beam 10 on both sides of the main beam 10. The second secondary beam 212 is longer than the third secondary beam 211 but shorter than the first secondary beam 213, and multiple second secondary beams 212 are spaced apart along the axis of the main beam 10 between the innermost third secondary beam 211 and the outermost first secondary beam 213. Figure 1 and Figure 2As shown, a fourth support region 2024 is formed between the third secondary beam 211 and the second secondary beam 212, with the extension length of the fourth support region 2024 being the same as the length of the third secondary beam 211. A third support region 2023 is formed between the second secondary beam 212 and the first secondary beam 213, with the extension length of the third support region 2023 being the same as the length of the second secondary beam 212. A second support region 2022 and a first support region 2021 are formed between the first secondary beam 213 and the third secondary beam 211. This arrangement facilitates the adaptation of the first support layer to the second support layer, ensuring the reliability of its support for the second support layer. In the above description, "the innermost third secondary beam 211" refers to the third secondary beam 211 located relatively to the innermost among the multiple third secondary beams 211, that is, the third secondary beam 211 at the edge of the fourth support area 2024. In the above description, "the outermost first secondary beam 213" refers to the first secondary beam 213 located relatively to the outermost among the multiple first secondary beams 213, that is, the first secondary beam 213 at the edge of the second support area 2022.

[0055] like Figure 1 and Figure 3 As shown, the heliostat frame also includes a secondary beam connector 23 and diagonal braces 22. Each secondary beam 21 is mounted on the main beam 10 via a secondary beam connector 23, and at least one diagonal brace 22 is provided at both ends of any secondary beam connector 23 and the secondary beam 21 on it. The secondary beam connector 23 and diagonal braces 22 strengthen the connection between the secondary beam 21 and the main beam 10. At the same time, the arrangement of the diagonal braces 22 improves the overall rigidity and torsional resistance of the frame, making the heliostat frame structure more stable, able to withstand higher wind pressure, and reducing the risk of vibration and deformation.

[0056] Among them, one end of the sub-beam 21 is the first end, and the other end is the second end; the diagonal brace 22 connected to the first end of the sub-beam 21 on the same sub-beam connecting seat 23 is the first diagonal brace, and the connection point between the first diagonal brace and the sub-beam connecting seat 23 is located on the side of the sub-beam connecting seat 23 away from the sub-beam 21 and close to the first end of the sub-beam 21; the diagonal brace 22 connected to the second end of the sub-beam 21 on the same sub-beam connecting seat 23 is the second diagonal brace, and the connection point between the second diagonal brace and the sub-beam connecting seat 23 is located on the side of the sub-beam connecting seat 23 away from the sub-beam 21 and close to the second end of the sub-beam 21; there is one first diagonal brace and one second diagonal brace. By setting diagonal braces at both ends of the secondary beam 21, the secondary beam 21, diagonal braces 22, and connecting seat 23 are combined to construct a stable triangular support structure, which improves the wind resistance and overall structural stability of the heliostat frame, reduces structural deformation caused by wind load, improves the structural strength of the first support frame 20, and reduces the use of materials, thereby lowering costs. This is beneficial for improving the wind resistance and overall stability of the heliostat frame while ensuring a lightweight design.

[0057] Preferably, the connection between the first diagonal brace and the sub-beam 21 is located at the first end of the sub-beam 21, and the connection between the second diagonal brace and the sub-beam 21 is located at the second end of the sub-beam 21. In this embodiment, each sub-beam 21 includes multiple segments along its length. Some segments are spaced apart and used to cooperate with purlins to form a sub-lens mounting area 301. One end of the diagonal brace 22 is connected to the segments located at both ends, or one end of the diagonal brace 22 is connected to the next segment adjacent to the segment located at both ends. This arrangement ensures the supporting effect of the diagonal brace 22 on the sub-beam 21 and avoids the situation where the transition position of the diagonal brace 22 and the sub-beam 21 is far from the end of the sub-beam 21, and the two ends of the sub-beam 21 cannot effectively support the sub-lens mounting area 301 formed on the two ends of the sub-beam 21 and the lens set on the sub-lens mounting area 301. This ensures the reliability and stability of the first support frame 20 in supporting multiple second support frames 30 and the lens. Furthermore, one end of the diagonal brace 22 is connected to the middle position of a segment. This optimizes the force transmission path, improves the support performance of the secondary beam 21, ensures the structural stability of the heliostat frame, and also improves the convenience of the transition.

[0058] like Figure 4 As shown, the heliostat frame also includes an adapter assembly 40. Any second support frame 30 is connected to at least one first support frame 20 that provides support to it (i.e., the first support frame 20 that provides support to the second support frame 30, which can also be understood as a direct or indirect connection). In this embodiment, any second support frame 30 is connected to at least two sub-beams 21 via the adapter assembly 40. This configuration optimizes the connection between the second support frame 30 and the sub-beams 21 through the use of the adapter assembly 40, improving the reliability and stability of the connection, while simplifying the assembly and disassembly process. This makes the connection between the second support frame 30 and the sub-beams 21 more secure, significantly improving the efficiency of frame assembly and disassembly.

[0059] Specifically, the adapter assembly 40 includes an adapter base 41, a first fastener, and a second fastener. The adapter base 41 is a right-angled base formed by connecting two mutually perpendicular adapter plates. One side of the adapter plate of the adapter base 41 abuts against the side of the first support frame 20, and the other side of the adapter base 41 abuts against the side of the second support frame 30. One side of the adapter plate of the adapter base 41 is connected to the first support frame 20 via the first fastener, and the other side of the adapter plate of the adapter base 41 is connected to the second support frame 30 via the second fastener. Any second support frame 30 is connected to all the first support frames 20 that provide support to it via the adapter assembly 40. The right-angled structure of the adapter base 41 and the fixing effect of the fasteners ensure precise connection between different support frames, while providing sufficient strength and stability. This makes the heliostat frame and the structure of the mirror body assembled on it more robust, able to withstand higher wind pressure, while improving installation accuracy and speed, and reducing potential connection failures and maintenance costs.

[0060] Preferably, both the first and second fasteners are riveted components, which helps to further reduce the difficulty of installation, improve installation efficiency, and ensure the connection strength and stability of the connection.

[0061] In summary, this utility model provides a heliostat frame that, through the ingenious design of the main beam 10, the first support frame 20, and the second support frame 30, achieves a flexible layout of the lens and sub-lens mounting area 301, effectively improving the overall stability of the heliostat frame. The use of second support frames 30 of different lengths and orientations, along with a matching strip support surface 201, ensures the near-circular characteristics of the assembled mirror body, while simplifying the installation process and reducing manufacturing costs. Furthermore, the application of the triangular support structure and the adapter component 40 further enhances the structural strength, making the entire heliostat frame more robust and durable. This design is not only suitable for tower-type solar thermal power plants but can also be widely applied to other solar energy utilization scenarios requiring efficient focusing of sunlight, significantly improving solar energy conversion efficiency and system reliability. Its simple structure, convenient installation, and improved heliostat frame strength also give it excellent wind resistance.

[0062] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0063] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0064] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0065] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0066] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0067] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A heliostat frame, characterized in that, include: Main beam (10); The first support layer is disposed on the main beam (10); The second support layer is configured to support the sub-lens. The second support layer includes a plurality of second support frames (30), which are spaced apart on the first support layer. At least two second support frames (30) form a sub-lens mounting area (301) for supporting the sub-lens. Wherein, at least some of the second support frames (30) have different lengths, and / or at least some of the second support frames (30) have different extension directions, so as to form different sub-mirror mounting areas (301).

2. The heliostat frame according to claim 1, characterized in that, All of the sub-mirror mounting areas (301) are coplanar and extend in a direction parallel to the axis of the main beam (10). All of the sub-mirror mounting areas (301) are distributed sequentially along the first radial direction of the main beam (10). Wherein, the first radial direction of the main beam (10) is a radial direction in which the main beam (10) is parallel to the sub-mirror mounting area (301); each of the sub-mirror mounting areas (301) is formed by at least two adjacent second support frames (30) of the same length.

3. The heliostat frame according to claim 2, characterized in that, The second support frame (30) is a purlin, and a plurality of the purlins are installed at first radial intervals along the main beam (10) on the first support layer; The axes of all the purlins are parallel to each other, and the axis of any one of the purlins is parallel to the axis of the main beam (10); Among them, all the purlins include at least three lengths of purlins, and the length of the purlins gradually decreases from the main beam (10) to both sides along the first radial direction of the main beam (10).

4. The heliostat frame according to claim 3, characterized in that, All the purlins include three lengths, namely the first purlin (33), the second purlin (32) and the third purlin (31), and there are multiple first purlins (33), second purlins (32) and third purlins (31); The first purlin (33) is the longest, and multiple first purlins (33) are arranged at first radial intervals along the main beam (10) in the middle of the first support layer; The third purlin (31) is the shortest, and multiple third purlins (31) are respectively spaced apart on the outside of the first support layer along the first radial direction of the main beam (10); The length of the second purlin (32) is greater than the length of the third purlin (31) and less than the length of the first purlin (33). A plurality of second purlins (32) are arranged at first radial intervals along the main beam (10) between the innermost third purlin (31) on the first support layer and the outermost first purlin (33) on the first support layer. Wherein, along the first radial direction of the main beam (10), the portion of the first support layer close to the axis of the main beam (10) is the middle part of the first support layer; along the first radial direction of the main beam (10), the portions on both sides of the first support layer that are far from the axis of the main beam (10) are the outer part of the first support layer.

5. The heliostat frame according to claim 1, characterized in that, The outer contour formed by splicing the multiple sub-lens mounting areas (301) is approximately circular, so that the lenses mounted on the multiple sub-lens mounting areas (301) are spliced ​​to form an approximately circular shape.

6. The heliostat frame according to any one of claims 1-5, characterized in that, The first support layer includes a plurality of first support frames (20), which are spaced apart on the main beam (10) along the axis of the main beam (10); The second support frame (30) is mounted on the first support frame (20), and each of the second support frames (30) is supported by at least two of the first support frames (20).

7. The heliostat frame according to claim 6, characterized in that, The first support frame (20) is a secondary beam (21), and multiple secondary beams (21) are spaced apart on the main beam (10) along the axis of the main beam (10); The axes of all the sub-beams (21) are parallel to each other, and the axis of any one of the sub-beams (21) is perpendicular to the axis of the main beam (10). The center of the axis of all the sub-beams (21) is located on one side of the axis of the main beam (10). Among them, all the sub-beams (21) include at least three lengths of sub-beams (21), and the length of the sub-beams (21) gradually decreases from the middle of the main beam (10) to both sides along the axis of the main beam (10).

8. The heliostat frame according to claim 7, characterized in that, All of the sub-beams (21) include three lengths, namely the first sub-beam (213), the second sub-beam (212), and the third sub-beam (211), and there are multiple first sub-beams (213), second sub-beams (212), and third sub-beams (211); The first sub-beam (213) is the longest, and multiple first sub-beams (213) are spaced apart along the axis of the main beam (10) in the middle of the main beam (10); The third sub-beam (211) is the shortest, and multiple third sub-beams (211) are respectively arranged at intervals on both sides of the main beam (10) along the axis of the main beam (10); The length of the second sub-beam (212) is greater than the length of the third sub-beam (211) and less than the length of the first sub-beam (213). Multiple second sub-beams (212) are spaced apart along the axis of the main beam (10) between the innermost third sub-beam (211) and the outermost first sub-beam (213).

9. The heliostat frame according to claim 7, characterized in that, The heliostat frame also includes a secondary beam connector (23) and a diagonal brace (22); Each of the sub-beams (21) is installed on the main beam (10) through the sub-beam connecting seat (23), and at least one of the diagonal braces (22) is provided at both ends of any one of the sub-beam connecting seats (23) and the sub-beam (21) thereon.

10. The heliostat frame according to claim 9, characterized in that, One end of the sub-beam (21) is the first end, and the other end is the second end; The diagonal brace (22) connected to the first end of the sub-beam (21) on the same sub-beam connecting seat (23) is the first diagonal brace. The connection point between the first diagonal brace and the sub-beam connecting seat (23) is located on the side of the sub-beam connecting seat (23) away from the sub-beam (21) and close to the first end of the sub-beam (21). The diagonal brace (22) connected to the second end of the sub-beam (21) on the same sub-beam connecting seat (23) is the second diagonal brace. The connection point between the second diagonal brace and the sub-beam connecting seat (23) is located on the side of the sub-beam connecting seat (23) away from the sub-beam (21) and close to the second end of the sub-beam (21). There is one first diagonal brace and one second diagonal brace; the connection between the first diagonal brace and the sub-beam (21) is located at the first end of the sub-beam (21), and the connection between the second diagonal brace and the sub-beam (21) is located at the second end of the sub-beam (21).

11. The heliostat frame according to claim 6, characterized in that, The heliostat frame also includes an adapter assembly (40), through which any one of the second support frames (30) is connected to at least one of the first support frames (20) that provides support thereto.

12. The heliostat frame according to claim 11, characterized in that, The adapter assembly (40) includes an adapter base (41), a first fastener, and a second fastener. The adapter base (41) is a right-angled base formed by connecting two mutually perpendicular adapter plates. One side of the adapter base (41) abuts against the side of the first support frame (20), and the other side of the adapter base (41) abuts against the side of the second support frame (30). One side of the adapter base (41) is connected to the first support frame (20) by the first fastener, and the other side of the adapter base (41) is connected to the second support frame (30) by the second fastener. Each of the second support frames (30) is connected to all the first support frames (20) that provide support thereto via the adapter assembly (40).

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