Novel regular octagonal heliostat mounting device

Abstract

The utility model discloses a novel regular octagonal heliostat installation device which mainly comprises a reflecting mirror surface assembly and a back support assembly. And the back of the reflecting mirror surface assembly is fixedly connected with the back bracket assembly. The outer contour of the reflection mirror surface assembly is of a regular octagonal structure composed of eight mirror surfaces, each mirror surface is composed of a bottom support, a bottom anti-friction pad, a lens, a top anti-friction pad, a top support and a hinge, and the lens is provided with a bottom friction pad and a top friction pad between the bottom support and the top support. The top support and the bottom support are connected through a hinge and a bolt. The back support assembly comprises a connecting disc, an overhanging truss and a bottom support, and the overhanging truss is connected with the bottom support and the connecting disc. The novel regular octagonal heliostat installation device has the advantages of being high in disassembly and assembly efficiency, easy to replace, small in material consumption, high in sunlight collection efficiency, low in overall cost and the like.

Description

Technical field:

[0001] The utility model belongs to the technical field of tower-type solar heliostats, and particularly relates to a novel regular octagonal heliostat installation device. Background technology:

[0002] As a clean energy source, solar energy plays a crucial role in promoting global clean energy use, improving human productivity, and escaping the energy crisis. Tower solar thermal is a type of solar power generation that uses heliostats to focus sunlight onto a heat receiver. The receiver stores the heat and maintains it at a high temperature. When needed, it is used to heat water to generate steam, which drives a steam turbine to generate electricity.

[0003] Traditional tower-type solar heliostats utilize rectangular or pentagonal structures, primarily consisting of the mirror, a back support truss, beams, and columns. Rectangular structures are relatively complex and require rigid columns and beams. The presence of beams increases the amount of steel used, increasing construction costs. Furthermore, rectangular structures have a smaller reflective surface and lower light utilization. Pentagonal structures reduce steel usage to some extent, but still require more steel and still underutilize light. Tower-type heliostats were modeled using circular mirrors, but were constructed using rectangular mirrors, reducing light utilization.

[0004] Traditional tower heliostats have multiple mirror panels, requiring the production of heliostat lenses in a variety of shapes. During installation, each mirror panel is equipped with multiple fixing connectors. These connectors have threaded grooves, and metal brackets are fixed to the mirror panels using bolts, thereby supporting the mirror panels. To ensure support stability, numerous bolts are usually required, making installation and removal relatively cumbersome.

[0005] Therefore, a heliostat installation device is needed that is easy to assemble and disassemble, has strong practicality, high light utilization rate, and uses less steel. Utility model content:

[0006] To solve the above technical problems, the utility model provides a new regular octagonal heliostat installation device with the characteristics of simple structure, low steel consumption, high light utilization rate and easy assembly and disassembly. At the same time, the wind resistance performance of the structure is as stable as that of traditional rectangular heliostats.

[0007] The technology adopted by the present invention in this embodiment is: a novel regular octagonal heliostat installation device, comprising a reflective mirror assembly and a back support assembly; the back of the reflective mirror assembly is fixedly connected to the back support assembly;

[0008] The reflective mirror assembly is composed of a plurality of reflectors, and the plurality of reflectors are spliced together to form a regular octagonal focusing mirror surface that is uniformly concave inwards;

[0009] The regular octagon structure consists of eight sub-lenses. Each sub-lens consists of a bottom bracket, a bottom anti-friction pad, a lens, a top anti-friction pad, a top bracket, and a hinge. A bottom friction pad is provided between the lens and the bottom bracket, and a top friction pad is provided between the lens and the top bracket. When the lens is not installed, the top bracket and the bottom bracket are connected by a hinge. After the lens is installed, the top bracket and the bottom bracket are pre-tightened and connected by bolts.

[0010] The back bracket assembly includes a disc and an outrigger truss. The bottom bracket of the lens is fixedly connected to the outrigger truss, and the disc is bolted to the outrigger truss.

[0011] In one embodiment, the outer contour position of the inwardly uniformly recessed regular octagon condenser mirror is 20 mm higher than the central position, so that the mirror has a focusing function and is more conducive to light collection.

[0012] In one embodiment, a limiting groove is provided inside the bottom bracket, and the bottom friction pad, the lens, and the top friction pad are sequentially clamped in the limiting groove from bottom to top.

[0013] In one embodiment, each reflecting mirror surface is an integral lens, and the material of the lens is multi-layer coated glass. The overall thickness of the multi-layer coated glass mirror is 8-10 mm. The lenses are spaced and fixed by limiting grooves.

[0014] In one embodiment, the bottom friction pad and the top friction pad are respectively located at the top and bottom of the lens. The top friction pad and the bottom friction pad are both made of flexible materials.

[0015] In one embodiment, a top bracket is provided on the top friction pad, and an extrusion plate is provided on one side of the top bracket close to the bottom bracket. The thickness dimension of the extrusion plate is greater than the remaining dimension of the limiting groove (the remaining dimension after removing the dimensions of the top friction pad, the bottom friction pad, and the lens).

[0016] In one embodiment, the shapes of the bottom bracket and the bottom friction pad are both large isosceles triangles composed of four isosceles triangles. The shapes of the top bracket and the top friction pad are hollow large isosceles triangle structures.

[0017] In one embodiment, an installation gap is provided between two adjacent reflecting mirrors, and each outrigger truss is arranged in the installation gap.

[0018] In one embodiment, one end of the outrigger truss is fixedly connected to the bottom bracket, the other end of the outrigger truss is fixedly connected to the disc, and the disc is connected to the driving device and the support member to form an integral body.

[0019] In one of the embodiments, the disc is circular.

[0020] The novel octagonal solar mirror mounting device provided by the above embodiments has the following beneficial effects:

[0021] For the novel octagonal solar mirror mounting device of the present utility model, the crossbeam structure in the traditional solar mirror is cancelled, and at the same time, eight long support arms are adopted to replace the support structure of one long and one short, a total of ten support arms of the existing pentagonal solar mirror. Only one type of support arm needs to be produced, reducing the overall steel consumption of the structure and the manufacturing cost of the solar mirror. Only one shape of lens needs to be produced and no extra cutting is required. The structure is relatively simple, and a single reflecting mirror surface can be assembled in the factory in advance, with less on-site operation required, so the on-site construction difficulty can be effectively reduced.

[0022] For the novel octagonal solar mirror mounting device of the present utility model, the reflecting mirror surface assembly adopts an octagonal structure, which can make greater use of solar light and avoid light loss. Its outer contour is closer to a circle. When the solar light is sufficient, it can reflect sunlight to a greater extent, reduce light loss caused by the shape of the solar mirror, and increase light utilization rate.

[0023] For the novel octagonal solar mirror mounting device of the present utility model, by providing a top friction pad and a bottom friction pad, the bottom friction pad is arranged at the bottom of the lens, and the top friction pad is arranged on the surface of the lens. The top friction pad and the bottom friction pad squeeze on both sides of the lens, thus ensuring the stable installation of the lens. At the same time, due to the friction pads made of flexible materials, when the mirror panel is affected by wind force or rotation force, it can have a certain buffer to avoid deformation.

[0024] For the novel octagonal solar mirror mounting device of the present utility model, by providing a mounting frame and a support component, a limiting groove is opened on the inner side of the mounting frame, and an extrusion plate is arranged on the top bracket. Rotating and tightening the bolt can make the extrusion plate press the mirror panel tightly. During installation and disassembly, only the screw needs to be operated, which is convenient to operate and improves the installation and disassembly efficiency of the solar mirror. Description of the drawings:

[0025] Figure 1 It is the back structure diagram of the solar mirror structure of the present utility model;

[0026] Figure 2 It is a partial cross-sectional view of the mirror surface of the solar mirror structure of the present utility model;

[0027] Figure 3 For the present utility model Figure 2 The enlarged schematic diagram of A therein;

[0028] Figure 4 For the present utility model Figure 2 An enlarged schematic view of B in it;

[0029] Figure 5 It is the front structure diagram of the heliostat structure of the present utility model.

[0030] Reference numerals:

[0031] 1. Bottom bracket; 11. Limit groove; 2. Top bracket; 21. Extrusion plate; 3. Lens; 4. Hinge; 5. Bottom friction pad; 6. Top friction pad; 7. Bolt; 8. Disc; 9. Outrigger truss. Specific implementation manner:

[0032] Next, the technology in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0033] See Figure 1 As shown, the back bracket assembly includes an intermediate connecting disc 8, an outrigger truss 9 and a bottom bracket 1. Among them, the bottom bracket 1 can restrain the lens 3 and serve as the skeleton structure of the heliostat. The disc 8 is installed at the center of the reflecting mirror assembly, the bottom bracket 1 is installed on the back of each reflecting lens 3, and the outrigger truss 9 is evenly arranged in a circumferential manner along the back of the reflecting mirror with the disc 8 as the center. The outrigger truss 9 is fixedly connected to the bottom bracket 1 on the back of the reflecting mirror. In this embodiment, the back bracket assembly serves as the skeleton structure of the entire heliostat. Through the design of the disc 8 and the outrigger truss 9, the back bracket assembly is a middle-outrigger truss structure. The outrigger truss 9 and the bottom bracket 1 on the back of the reflecting mirror form a reticular skeleton system, reducing the steel consumption of the structure and the manufacturing cost of the heliostat.

[0034] See Figures 2 to 4As shown, specifically, it includes a bottom bracket 1 and a top bracket 2. The bottom bracket 1 includes a limiting groove 11, and the top bracket 2 includes a pressing plate 21. Inside the inner side of the limiting groove 11, a lens 3, a top friction pad 6 made of a flexible material, and a bottom friction pad 5 are installed. The bottom friction pad 5 and the top friction pad 6 are installed on the top and bottom of the lens 3 respectively. On the other sides of the bottom friction pad 5 and the top friction pad 6 are the top bracket 2 and the bottom bracket 1 respectively. When the lens 3 is not installed, the top bracket 2 and the bottom bracket 1 are connected by a hinge 4. After the lens 3 is installed, the top bracket 2 and the bottom bracket 1 are tightened and connected by a bolt 7; in this embodiment, the thickness dimension of the pressing plate 21 is greater than the remaining dimension of the limiting groove 11 (the remaining dimension after removing the dimensions of the top friction pad 6, the lens 3, and the bottom friction pad 5). Through the setting of the flexible friction pads, when the pressing plate 21 is pressed and tightened, the lens 3 can have a certain buffer space, and when affected by external wind force and rotational stress, it can perform a certain buffer to avoid the deformation of the lens 3. This bracket is convenient for installation and disassembly, which can improve the overall disassembly and assembly efficiency of the solar heliostat.

[0035] See Figure 1 , 2 As shown in FIGS. 5, the reflecting mirror assembly is composed of eight reflecting mirrors. These eight reflecting lenses 3 are arranged in a circular array, forming a reflecting mirror assembly with a regular octagon outer contour structure. The adjacent two reflecting mirrors are separated by the bottom bracket 1 and the top bracket 2. The reflecting mirror is composed of multi-layer coated glass. Among them, the thickness of the silver-plated glass mirror is 8 - 10 mm, and a gap is reserved between each reflecting mirror to make the disassembly more convenient. In the horizontal direction, the outer contour position of the regular octagon mirror is 20 mm higher than the central position, so that the mirror can have a focusing function and is more conducive to the collection of light. By designing the reflecting mirror assembly as a regular octagon structure, the amount of light collected by the overall mirror is increased, and the amount of light collected by the overall mirror is increased.

[0036] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structural transformation made under the inventive concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A novel octagonal heliostat mounting device, characterized by: a) comprising a reflective mirror assembly and a back support assembly; the back of the reflective mirror assembly is fixedly connected to the back support assembly; b) the reflective mirror assembly is composed of a plurality of reflectors, and the plurality of reflectors are spliced together to form a regular octagonal focusing mirror surface that is uniformly concave inwardly; c) The regular octagonal focusing mirror is composed of eight sub-lenses, each of which is composed of a bottom bracket (1), a bottom friction pad (5), a lens (3), a top friction pad (6), a top bracket (2) and a hinge (4). A bottom friction pad (5) is provided between the lens (3) and the bottom bracket (1), and a top friction pad (6) is provided between the lens (3) and the top bracket (2). The lens (3) is a multi-layer coated glass mirror. The outer contours of the top bracket (2), the bottom bracket (1), the bottom friction pad (5), and the top friction pad (6) are all isosceles triangle structures. When the lens is not installed, the top bracket (2) and the bottom bracket (1) are connected by a hinge (4). After the lens (3) is installed, the top bracket (2) and the bottom bracket (1) are pre-tightened and connected by bolts (7); d) The back support assembly comprises a disc (8) and an outrigger truss (9), the lens bottom support (1) is fixedly connected to the outrigger truss (9), and the disc (8) is connected to the outrigger truss (9) by bolts (7).

2. The novel regular octagonal heliostat installation device according to claim 1, characterized in that: The outer contour position of the regular octagonal focusing mirror surface that is uniformly concave inward is 20 mm higher than the center position, so that the mirror surface has a focusing function, which is more conducive to collecting light.

3. The novel regular octagonal heliostat installation device according to claim 1, characterized in that: A limiting groove (11) is provided on the inner side of the bottom bracket (1), and the bottom friction pad (5), the lens (3) and the top friction pad (6) are sequentially engaged in the limiting groove (11) from bottom to top.

4. The novel regular octagonal heliostat installation device according to claim 1, characterized in that: Each of the reflector surfaces is an integral lens (3), the material of the lens (3) is multi-layer coated glass, and the overall thickness of the multi-layer coated glass mirror surface is 8-10 mm; the lenses (3) are spaced and fixed by limiting grooves (11).

5. The novel regular octagonal heliostat installation device according to claim 4, characterized in that: The bottom friction pad (5) and the top friction pad (6) are respectively located on the top and bottom of the lens (3); the top friction pad (6) and the bottom friction pad (5) are both made of flexible materials.

6. The novel regular octagonal heliostat installation device according to claim 5, characterized in that: A top bracket (2) is provided on the top friction pad (6), and an extrusion plate (21) is provided on the side of the top bracket (2) close to the bottom bracket (1). The thickness of the extrusion plate (21) is greater than the remaining accommodation space size of the limiting groove (11), and the remaining accommodation space size is the remaining size after deducting the size of the top friction pad (6), the bottom friction pad (5) and the lens (3) from the total depth of the limiting groove (11).

7. The novel regular octagonal heliostat installation device according to claim 1, characterized in that: The bottom bracket (1) and the bottom friction pad (5) are both shaped as a large isosceles triangle composed of four isosceles triangles; the top bracket (2) and the top friction pad (6) are shaped as a large hollow isosceles triangle structure.

8. The novel regular octagonal heliostat installation device according to claim 1, characterized in that: Each of the outrigger trusses (9) is arranged in a gap between two adjacent reflectors.

9. The novel regular octagonal heliostat installation device according to claim 8, characterized in that: One end of the outrigger truss (9) is fixedly connected to the bottom bracket (1), and the other end of the outrigger truss (9) is fixedly connected to the disc (8). The disc (8) is connected to the driving device and the support member to form a whole.

10. The novel regular octagonal heliostat installation device according to claim 9, characterized in that: The disc (8) is circular.

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