Ring purlin type support device for heliostat
By using a ring purlin support device, external force is converted into tensile force, which solves the problems of large weight and high cost of heliostat support structure, achieves lightweight and low-cost load-bearing capacity, and reduces operating and manufacturing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-15
- Publication Date
- 2026-04-07
AI Technical Summary
Existing heliostat support structures are heavy and costly, and their load-bearing capacity is insufficient under dynamic conditions, increasing operating and manufacturing costs.
The ring purlin support device is adopted, including ring seat and purlin assembly. The purlin assembly converts external force into tensile force by tilting and crossing. By utilizing the tensile properties of steel, the amount of steel used is reduced and lightweighting is achieved.
This reduces the weight and material costs of the heliostat system while increasing its load-bearing capacity, and lowering operating energy consumption and manufacturing costs.
Smart Images
Figure CN224094639U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a support device for a heliostat, and more particularly to a ring purlin support device for a heliostat. Background Technology
[0002] A heliostat is a device that collects and utilizes solar radiation energy. It tracks the sun and reflects sunlight to a fixed location for use. In existing technology, a heliostat includes a reflecting surface, a support and drive mechanism, and an automatic tracking and control system. The reflecting surface consists of multiple mirrors arranged separately, resulting in a large volume and tight installation; therefore, the mounting brackets for the support and drive mechanism need to have strong support capacity. In existing technology, the heliostat is mounted on a truss support frame (base). Because the heliostat is a large planar structure, its support structure needs to have a high wind load resistance. To ensure support strength, the truss structure is large and heavy, resulting in a large amount of steel used and a high weight, thus increasing costs. Furthermore, while the truss structure itself is practical for bearing static loads, the heliostat is a dynamic structure and is affected by the natural environment (wind direction), resulting in a complex stress state. For the supports of the truss structure, the only way to improve load-bearing capacity is to increase the strength of the structure itself. Therefore, the supports are heavy, increasing the overall weight of the heliostat system, thus increasing the drive load and ultimately increasing operating costs.
[0003] Therefore, it is necessary to improve the existing heliostat mounting supports to reduce their weight and incorporate targeted mechanical design, thereby making the overall mounting supports lighter and simpler in structure. Compared with traditional truss structures, this not only saves material costs but also reduces operating energy consumption and saves manufacturing and usage costs. Utility Model Content
[0004] In view of this, the present invention provides a ring purlin support device for a heliostat, which is lightweight and has a targeted mechanical design, so that the overall mounting support is lightweight and the structure is relatively simple. Compared with the traditional truss structure, it not only saves material costs, but also reduces operating energy consumption and saves manufacturing and usage costs.
[0005] The present invention relates to a ring purlin support device for a heliostat, comprising a purlin assembly and at least two ring seats that are radially fitted in sequence.
[0006] The purlin group includes a first purlin group and a second purlin group. The first purlin group includes a plurality of first purlins arranged in a circumferential direction and fixedly connected between adjacent ring seats. The second purlin group includes a plurality of second purlins arranged in a circumferential direction and fixedly connected between adjacent ring seats.
[0007] The ring seat has a set dimension in the axial direction, and the first purlin group and the second purlin group are arranged side by side along the axial direction of the ring seat.
[0008] Furthermore, at least a portion of the first purlin is inclined to one side in the radial direction, and at least a portion of the second purlin is inclined to the other side in the radial direction.
[0009] Furthermore, adjacent first purlins are inclined in opposite directions in the radial direction, and adjacent second purlins are inclined in opposite directions in the radial direction.
[0010] Furthermore, the first purlin or the second purlin is inclined to one side in the radial direction, or adjacent first purlins or second purlins are inclined in opposite directions in the radial direction.
[0011] Furthermore, when the first purlin and the second purlin are in the same axial plane, the first purlin and the second purlin are integrally formed, and a hollowed-out arrangement is provided between the first purlin and the second purlin.
[0012] Furthermore, the number of ring seats is predetermined, with the innermost one being the central ring seat, followed by the middle ring seat and the outer ring seat from the inside out. The first purlin and the second purlin are segmented and fixedly installed between adjacent ring seats, or they are a single piece that is sequentially fixedly connected to the central ring seat, the middle ring seat, and the outer ring seat.
[0013] Furthermore, the first purlin and the second purlin are respectively subjected to preload.
[0014] Furthermore, the ring seat is circular, and the first purlin and the second purlin are segmented, with the first purlin and the second purlin between adjacent ring seats being tangent to the ring seat on the radially inner side; or, the first purlin and the second purlin are integral, with the first purlin being tangent to the central ring seat;
[0015] Alternatively, the ring seat is polygonal, the first purlin and the second purlin are segmented, and the first purlin and the second purlin between adjacent ring seats are fitted and fixed to the sides of the polygonal ring seat on the radially inner side; or, the first purlin and the second purlin are integral and are fitted and fixed to the sides of the polygonal ring seat of the center seat ring.
[0016] Furthermore, the axial dimension of the ring seat gradually decreases from the inside to the outside, and all the ring seats are aligned with the end corresponding to the heliostat and adapted to the plane where the heliostat is located. The first purlin is fixed to the end of the ring seat corresponding to the heliostat to form a mounting surface; the second purlin is adapted to the axial dimension of the ring seat and is inclined along the axial direction.
[0017] Furthermore, the first purlin is provided with a connector for mounting heliostat lenses.
[0018] The beneficial effects of this utility model are as follows: The ring purlin support device for heliostats of this utility model adopts a ring seat combined with a purlin structure, which has a targeted mechanical design. This structure is different from the static bearing structure. It is a dynamic bearing that follows the movement of the sun. When bearing load, the external force on different directions of the bearing surface can be converted into the tensile force component of the purlin. It is adapted to the tensile characteristics of steel. Unlike the web members of the truss which are subjected to compressive load and require greater strength, it can reduce the amount of steel used. In the end, the weight of the mounting base of this utility model is reduced, achieving lightweight and simple structure. Compared with the traditional truss structure, it not only saves material costs, but also reduces operating energy consumption and saves manufacturing and use costs. Attached Figure Description
[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0020] Figure 1 This is a schematic diagram of the planar structure of this utility model (the purlins are arranged radially);
[0021] Figure 2 for Figure 1 The side view section (also serving as) Figure 3 and Figure 4 (Side view sectional view);
[0022] Figure 3 This is a schematic diagram of the planar structure of this utility model (the purlins are arranged in a segmented, inclined manner);
[0023] Figure 4 This is a schematic diagram of the planar structure of this utility model (the purlins are inclined as a single piece);
[0024] Figure 5 A schematic diagram of the first and second purlins, which are integrally formed. Detailed Implementation
[0025] As shown in the figure: The ring purlin support device for a heliostat in this embodiment includes a ring seat and a purlin assembly, wherein there are at least two ring seats arranged radially in sequence;
[0026] The purlin group includes a first purlin group and a second purlin group. The first purlin group includes a plurality of first purlins arranged in a circumferential direction and fixedly connected between adjacent ring seats. The second purlin group includes a plurality of second purlins arranged in a circumferential direction and fixedly connected between adjacent ring seats.
[0027] The ring seat has a predetermined dimension in the axial direction, and the first purlin group and the second purlin group are arranged side by side along the axial direction of the ring seat, such as... Figure 2 As shown;
[0028] The ring seat of this utility model is a ring structure, not limited to a circular ring structure. It can be a polygonal (including triangular and above shapes) ring structure. Radial refers to the diameter direction of the circle or the radial direction of the circumcircle (or incircle) of the polygonal structure, which will not be elaborated here.
[0029] The ring seat and purlins are generally made of steel, which will not be elaborated here. The ring seat and the first and second purlins fixed to the ring seat can be fixed by welding, riveting, or bolts, etc., which can be detachably fixed. The purlins can be radially distributed or inclined, both of which can achieve the purpose of the utility model. With the ring purlin layout structure, when the ring seat and purlins are subjected to external forces, torque and direct gravity components will be generated. The ring purlin structure will convert most of the torque and gravity components into tensile forces on the purlins. Based on the strong tensile strength of steel, the overall load-bearing capacity of the mounting base is improved. Compared with trusses with the same load-bearing capacity, the overall weight of steel is greatly reduced.
[0030] The first and second purlins can be arranged radially with the innermost seat ring as the center, such as... Figure 1 As shown, it can also achieve the effect of converting torque (possessing the dynamic support) and gravity component into tension, but the conversion efficiency is different from that of the inclined setting; it can also be set to tilted in the radial direction, which improves the efficiency of converting into tension, but will not be elaborated here.
[0031] In this embodiment, at least a portion of the first purlins are radially inclined to one side, and at least a portion of the second purlins are radially inclined to the other side. "At least a portion" means that at least a portion of the first and second purlins are inclined, with the remainder arranged radially; alternatively, all purlins may be inclined, which will not be elaborated further here. This embodiment uses a fully inclined arrangement. Figure 3 (Segmented purlin type) and Figure 4 As shown in the (whole purlin type) diagram, the number of ring seats can be three, namely, from the radial direction from the inside to the outside: a central ring seat 1 located in the center, an intermediate ring seat 2 located in the middle, and an outermost ring seat 3 located on the outermost side. The first purlin 4, 401 and the second purlin 5, 501 (in this utility model, when the first and second purlins are segmented structures, different reference numerals are used for identification; when they are a single piece, the same reference numerals are used, such as...) Figure 3 and Figure 4As shown, the rings intersect in space (the intersection point is generally located between the ring seats) connecting the central ring seat 1 and the intermediate ring seat 2, as well as the intermediate ring seat 2 and the outer ring seat 3; as shown in the figure, when it is a heliostat with a larger area, the number of ring seats can be more, and there can be multiple intermediate ring seats 2 in the figure, which will not be elaborated here; radial direction refers to the diameter direction of the circle or the radial direction of the circumcircle (or incircle) of the polygonal structure, which will not be elaborated here; radial inclination to one side means that the purlin is not on the diameter, but is set at an inclination relative to the diameter (not perpendicular to the tangent of the circle), in this case Without further elaboration; in this structure, when subjected to external forces generating torque and gravity components in the mounting plane between the seat rings, the first and second purlins, which intersect spatially, convert most or even all of the torque and gravity components into tensile and supporting forces, with tension being the dominant force; based on the strong tensile strength of steel, the overall load-bearing capacity of the mounting base is improved, and the overall weight of the steel is greatly reduced compared to trusses with equivalent load-bearing capacity; it is particularly suitable for the dynamic load-bearing process of heliostats, and has good adaptability to different directional changes in torque during the dynamic process.
[0032] Of course, the following structure can also be adopted: adjacent first purlins 4 are inclined in opposite directions in the radial direction, forming an intersection between the ring seats or on the extension line; adjacent second purlins 5 are inclined in opposite directions in the radial direction, also forming an intersection between the ring seats or on the extension line. In this embodiment, an intersection is formed between adjacent ring seats. In this structure, the adjacent first purlins 4 of the first purlin group are inclined in opposite directions and intersected, and can be fixedly connected at the intersection point, thereby forming a combined effect of tensile force and supporting force, improving the load-bearing capacity. Similarly, the adjacent second purlins 5 of the second purlin group are inclined in opposite directions and intersected, and can be fixedly connected at the intersection point, thereby forming a combined effect of tensile force and supporting force, improving the load-bearing capacity. Thus, the first purlin group and the second purlin group can respectively withstand tensile forces in two directions and provide supporting forces in opposite directions, further increasing the load-bearing capacity of the same purlin group, and reducing the amount of steel used under the premise of the same load-bearing capacity. The plan view shown in this structure is consistent with... Figure 3 and Figure 4 It is consistent, except that the reference numerals 5 and 501 for the second purlin are missing (in the plan view, the second purlin is blocked by the first purlin).
[0033] Of course, one of the first purlins or the second purlin can be inclined to one side in the radial direction, while the other is arranged radially, both of which can achieve some of the intended mechanical purpose; or, adjacent first purlins or second purlins can be inclined in opposite directions in the radial direction; similarly, the first purlin and the second purlin can also be arranged to intersect or have their extensions intersect, both of which can achieve the invention's purpose that is superior to the prior art.
[0034] In this embodiment, when the first purlin and the second purlin are in the same axial plane, the first purlin and the second purlin are integrally formed, and a hollowed-out arrangement is provided between the first purlin and the second purlin; for example... Figure 5 As shown, when the first purlin and the second purlin are both arranged radially or have the same inclination angle, the first purlin 4 and the second purlin 5 are integrally formed by machining methods such as stamping, and a hollow part a is formed between them, which helps to improve the stability of the structure and further increase its strength.
[0035] The first and second purlins can also be integrally formed by stamping or other machining methods, and can also form a hollow structure to reduce weight and increase bending resistance, while also improving the production efficiency of the purlin structure.
[0036] In this embodiment, the number of ring seats is predetermined. The innermost ring seat is the central ring seat 1, and from the inside out, they are the intermediate ring seat 2 and the outer ring seat 3. The first purlin 4 and the second purlin 5 are segmented and fixedly arranged between adjacent ring seats (the first purlin 401 and the second purlin 501 located between the intermediate ring seat 2 and the outer ring seat 3). In this embodiment, the number of intermediate ring seats can be zero or more as needed, which will not be elaborated here.
[0037] Of course, the first purlin 4 and the second purlin 5 can also be a single piece, sequentially fixed to the central ring seat 1, the intermediate ring seat 2, and the outer ring seat 3. The first purlin 4 and the second purlin 5 adopt a single-piece structure, fixed to the central ring seat, the intermediate ring seat, and the outer ring seat respectively. Conventional welding or bolt-type detachable connections are acceptable, utilizing existing mechanical connection methods, which will not be elaborated upon here. Of course, using a segmented structural design between adjacent ring seats can still achieve the purpose of the utility model, which will not be elaborated upon here either.
[0038] The ring seats are arranged radially from the inside out as needed. The purpose is to determine the number of ring seats based on the area of the heliostat and the magnitude of gravity, so as to ensure the load-bearing capacity.
[0039] In actual use, the central ring seat is used to receive the driving power of the drive system installed on the column, thereby completing the tracking of the sun and realizing the function of the heliostat, which will not be elaborated here.
[0040] In this embodiment, the first purlin 4 and the second purlin 5 (in the segmented purlin structure, the first purlin 401 and the second purlin 501 are also included) are respectively subjected to preload. The purlin and the ring seat are generally connected by bolts, and the preload is formed by applying a preset tensile stress to ensure the stability of the structure.
[0041] In this embodiment, as Figure 3As shown, the ring seat is circular, and the first and second purlins are segmented. The first and second purlins between adjacent ring seats are tangent to the radially inner ring seats. Here, adjacent ring seats refer to the relationship between the central ring seat and the intermediate ring seat, as well as between the intermediate ring seat and the outer ring seat. As shown in the figure, the first purlin 4 and the second purlin 5 between the central ring seat and the intermediate ring seat are tangent to the central ring seat, and the first purlin 401 and the second ring seat 501 between the intermediate ring seat and the outer ring seat are tangent to the intermediate ring seat. This tangent structure better conforms to the mechanical characteristic of torque being converted into tensile force, and can maximize the conversion of the borne torque and gravity component into tensile force and support force, thereby further improving the load-bearing capacity; or, as Figure 4 As shown, the first purlin and the second purlin are integral pieces. The first purlin is tangent to the central ring seat. Since the central ring seat is the power input position, the technical effect produced by the tangent connection structure is also more obvious. Figure 3 and Figure 4 What is shown is a plan view; its side sectional view is different. Figure 2 The same applies; its side sectional view is omitted here.
[0042] Of course, the ring seat does not have to be circular; it can also be polygonal. Similarly, the first and second purlins are segmented, and the first and second purlins between adjacent ring seats are fixed to the polygonal edges of the radially inner ring seat. Alternatively, the first and second purlins are integral and are fixed to the polygonal edges of the central ring seat. It has essentially the same function as the circular ring seat, and will not be elaborated further here.
[0043] The part where the ring seat connects to the first purlin 4 and the second purlin 5 can be specially treated, such as by thickening or opening connecting holes, which will not be elaborated here.
[0044] In this embodiment, the axial dimension of the ring seat gradually decreases from the inside out, that is, the axial dimensions of the central ring seat, the intermediate ring seat (including the space between adjacent intermediate ring seats), and the outer ring seat gradually decrease, and the end corresponding to the heliostat is aligned with the plane where the heliostat is located, which is used to cooperate with the first purlin to install the heliostat and ensure stability; the first purlin is fixed to the end of the ring seat corresponding to the heliostat to form a mounting surface; the second purlin is inclined along the axial direction to adapt to the axial dimension of the ring seat.
[0045] As shown in the figure, the ring seat is aligned with the end corresponding to the heliostat, which facilitates the installation of the heliostat lens. The size setting makes the bracket gradually thin from the middle to the outer edge, adapting to the changes in the magnitude of the load-bearing curve, ensuring load-bearing capacity while reducing the amount of steel used.
[0046] In this embodiment, the first purlin is provided with a connector 6 for mounting a heliostat lens. The connector 6 is fixed to the first purlin and is used to mount the heliostat lens. The mounting structure can adopt an existing mechanical connection structure, which will not be described in detail here; the mounting position of the connector is as follows: Figure 1 and Figure 2 As shown, in Figure 3 and Figure 4 In the structure shown, the installation of the connector is not special, and in order to more clearly illustrate the principle of this utility model and avoid interference, the connector is omitted in this figure and will not be described in detail here.
[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A ring-purlin support device for a heliostat, characterized in that: Includes purlin assembly and at least two radially fitted ring seats; The purlin group includes a first purlin group and a second purlin group. The first purlin group includes a plurality of first purlins arranged in a circumferential direction and fixedly connected between adjacent ring seats. The second purlin group includes a plurality of second purlins arranged in a circumferential direction and fixedly connected between adjacent ring seats. The ring seat has a set dimension in the axial direction, and the first purlin group and the second purlin group are arranged side by side along the axial direction of the ring seat.
2. The ring-purlin support device for a heliostat according to claim 1, characterized in that: At least a portion of the first purlin is inclined to one side in the radial direction, and at least a portion of the second purlin is inclined to the other side in the radial direction.
3. The ring-purlin support device for a heliostat according to claim 1, characterized in that: The adjacent first purlins are inclined in opposite directions in the radial direction, and the adjacent second purlins are inclined in opposite directions in the radial direction.
4. The ring-purlin support device for a heliostat according to claim 1, characterized in that: The first purlin or the second purlin is inclined to one side in the radial direction, or adjacent first purlins or second purlins are inclined in opposite directions in the radial direction.
5. The ring-purlin support device for a heliostat according to claim 2, 3 or 4, characterized in that: When the first purlin and the second purlin are in the same axial plane, the first purlin and the second purlin are integrally formed, and there is a hollowed-out space between the first purlin and the second purlin.
6. The ring-purlin support device for a heliostat according to claim 2, 3 or 4, characterized in that: The number of ring seats is predetermined, with the innermost one being the central ring seat, followed by the middle ring seat and the outer ring seat from the inside out. The first purlin and the second purlin are segmented and fixedly installed between adjacent ring seats, or they are a single piece that is sequentially fixedly connected to the central ring seat, the middle ring seat, and the outer ring seat.
7. The ring-purlin support device for a heliostat according to claim 2, 3 or 4, characterized in that: The first purlin and the second purlin are respectively subjected to preload.
8. The ring-purlin support device for a heliostat according to claim 6, characterized in that: The ring seat is circular, and the first purlin and the second purlin are segmented. The first purlin and the second purlin between adjacent ring seats are tangent to the ring seat on the radially inner side; or, the first purlin and the second purlin are integral, and the first purlin is tangent to the central ring seat. Alternatively, the ring seat is polygonal, the first purlin and the second purlin are segmented, and the first purlin and the second purlin between adjacent ring seats are fitted and fixed to the sides of the polygonal ring seat on the radially inner side; or, the first purlin and the second purlin are integral and are fitted and fixed to the sides of the polygonal ring seat of the center seat ring.
9. The ring-purlin support device for a heliostat according to claim 6, characterized in that: The axial dimension of the ring seat gradually decreases from the inside to the outside, and all the ring seats are aligned with the end corresponding to the heliostat and adapted to the plane where the heliostat is located. The first purlin is fixed to the end of the ring seat corresponding to the heliostat to form a mounting surface. The second purlin is adapted to the axial dimension of the ring seat and is inclined along the axial direction.
10. The ring-purlin support device for a heliostat according to claim 9, characterized in that: The first purlin is provided with a connector for mounting heliostat lenses.