Steel tower support system for a solar tower power plant

Abstract

The present disclosure relates to the technical field of tower type photo-thermal power generation, and provides a steel frame support system of a heliostat of a tower type photo-thermal power station. The support system comprises a central column, a ring-shaped main beam, a plurality of radial secondary beams, a ring-shaped reinforcing ring and an extension mechanism. The central column is vertically arranged on a work ground; the ring-shaped main beam is sleeved on the top end of the central column and is rotationally connected with the central column; the plurality of radial secondary beams are arranged at intervals in the circumferential direction of the ring-shaped main beam, and the heliostat is arranged on the plurality of radial secondary beams; the radial secondary beam comprises opposite first and second ends, and the first end is rotationally connected with the ring-shaped main beam; the ring-shaped reinforcing ring is arranged around the outer side of the plurality of radial secondary beams in the circumferential direction, and the second end is connected with the ring-shaped reinforcing ring; one end of the extension mechanism is rotationally connected with the ring-shaped main beam, and the other end is rotationally connected with the heliostat. According to the support system provided by the present disclosure, the stability of the support system in supporting the heliostat can be ensured.

Description

Technical Field

[0001] This disclosure relates to the field of tower-type concentrated solar power (CSP) technology, and more particularly to a steel frame support system for a heliostat in a tower-type CSP power plant. Background Technology

[0002] In a tower solar thermal power plant, the heliostat is the core concentrating component, which uses a reflector to focus sunlight onto the receiver of the solar tower.

[0003] In existing technologies, heliostats generally require a support structure for support and lifting, but some support structures have problems such as insufficient rigidity and inability to adjust the angle. Utility Model Content

[0004] In order to solve the above-mentioned technical problems, or at least partially solve the above-mentioned technical problems, this utility model provides a steel frame support system for a heliostat in a tower-type solar thermal power plant.

[0005] This application provides a steel frame support system for a heliostat in a tower-type solar thermal power plant. The steel frame support system for the heliostat includes: a central column, which is vertically positioned on the working ground; an annular main beam, which is fitted onto the top of the central column and rotatably connected to it; multiple radial secondary beams, which are spaced circumferentially on the annular main beam, with the heliostat mounted on each of the radial secondary beams, each radial secondary beam having a first end and a second end opposite to each other, the first end being rotatably connected to the annular main beam; an annular reinforcing ring, which surrounds the outer circumference of the multiple radial secondary beams, with the second end connected to the annular reinforcing ring; and a telescopic mechanism, one end of which is rotatably connected to the annular main beam, and the other end of which is rotatably connected to the heliostat.

[0006] According to the embodiments of this application, the steel frame support system for the heliostat in a tower-type solar thermal power plant can ensure the stability of the support system for the heliostat by setting radial secondary beams and annular reinforcing rings. The angle rotation of the heliostat can be adjusted by setting an annular main beam that can rotate relative to the central column. The tilt angle of the heliostat can be adjusted by setting a telescopic mechanism to adapt to the solar angle at different times and improve the energy utilization rate of the heliostat.

[0007] In one possible implementation of this application, the steel frame support system of the heliostat in a tower-type solar thermal power plant includes: a plurality of auxiliary secondary beams, each of which corresponds one-to-one with the radial secondary beams. The auxiliary secondary beams are located below the radial secondary beams. Each auxiliary secondary beam includes a third end and a fourth end, the third end of which is rotatably connected to the annular main beam, and the fourth end of which is connected to the annular reinforcing ring.

[0008] In one possible implementation of this application, the steel frame support system of the heliostat in a tower-type solar thermal power plant includes: a plurality of support rods, the support rods being located between the radial secondary beams and the auxiliary secondary beams, one end of the support rods being connected to the radial secondary beams and the other end being connected to the auxiliary secondary beams.

[0009] In one possible implementation of this application, the support rod is inclined toward the annular main beam in a top-to-bottom direction.

[0010] In one possible implementation of this application, the angle between the extension direction of the support rod and the horizontal plane is greater than or equal to 60° and less than or equal to 75°.

[0011] In one possible implementation of this application, the telescopic mechanism is a telescopic rod, one end of which is rotatably connected to the annular main beam and the other end is rotatably connected to the heliostat.

[0012] In one possible implementation of this application, the radial secondary beam is detachably connected to the heliostat.

[0013] In one possible implementation of this application, the steel frame support system for the heliostat of the tower solar thermal power plant further includes: a support base, the support base being fixed to the working ground, and the central column being fixed to the support base. Attached Figure Description

[0014] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 Schematic diagram of the support system provided for some embodiments of this application; Figure 2 for Figure 1 Top view of the support system shown; Figure 3 for Figure 1 Side view of the support system shown; Figure 4 for Figure 1 The diagram shows another angle of the support system.

[0017] Figure label: 100. Support system; 110. Central column; 120. Circular main beam; 130. Radial secondary beams; 140. Telescopic mechanism; 150. Auxiliary secondary beams; 160. Support rod; 170. Support base; 200. Heliostat. Detailed Implementation

[0018] To better understand the above-mentioned objectives, features, and advantages of this utility model, the solution of this utility model will be further described below. It should be noted that, unless otherwise specified, the embodiments of this utility model and the features thereof can be combined with each other.

[0019] Many specific details are set forth in the following description in order to provide a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of the present invention, and not all embodiments.

[0020] In a tower solar thermal power plant, the heliostat is the core concentrating component, which uses a reflector to focus sunlight onto the receiver of the solar tower.

[0021] In existing technologies, heliostats generally require a support structure for support and lifting, but some support structures have problems such as insufficient rigidity and inability to adjust the angle.

[0022] To solve the above-mentioned technical problems, this application provides a steel frame support system 100 for a heliostat in a tower solar thermal power plant. The support system 100 may include: a central column 110, a ring main beam 120, multiple radial secondary beams 130, a ring reinforcing ring, and a telescopic mechanism 140.

[0023] Specifically, the central column 110 is vertically set on the working ground, and a support base 170 is provided on the working ground. The support base 170 is fixed to the working ground, and the central column 110 is fixed to the support base 170.

[0024] The central column 110 can be integrally formed with the support base 170, and the central column 110 can also be detachably connected with the support base 170.

[0025] In the specific implementation process, the support base 170 is formed by concrete pouring, and the central column 110, as the main load-bearing component of the entire system, is fixed at the bottom to the support base 170. The central column 110 preferably uses large-diameter thick-walled steel pipes, such as Q345B steel pipes, with an outer diameter between 1200mm and 1800mm. The interior of the central column 110 can be filled with high-strength concrete to enhance rigidity and stability.

[0026] The annular main beam 120 is fitted onto the top of the central column 110 and is rotatably connected to the central column 110. In the specific implementation process, the annular main beam 120 includes an outer ring and an inner ring. The outer ring is fitted onto the outer circumferential side of the inner ring. The outer ring and the inner ring are rotatably connected through bearings. The inner ring is fixedly connected to the central column 110 through high-strength flanges and bolts. The outer ring can rotate around the central axis of the central column 110.

[0027] The annular main beam 120 is preferably made of high-strength steel with a box-shaped cross-section. For example, the annular main beam 120 is formed by welding 200mm×200mm×10mm Q345D steel.

[0028] Multiple radial secondary beams 130 are circumferentially spaced around the annular main beam 120, forming an mounting surface and a stable annular foundation platform. The heliostat 200 is mounted on the radial secondary beams 130. Specifically, the lower wall of the heliostat 200 has multiple connecting rods with connection points. The radial secondary beams 130 have connection nodes that correspond to the connection points. These connection nodes can be ball joints or universal joints, allowing the heliostat 200 to adjust its tilt within a certain angle range to compensate for manufacturing and installation errors and thermal deformation. The connection nodes are connected to the radial secondary beams 130 via bolts.

[0029] Furthermore, multiple radial secondary beams 130 are evenly spaced circumferentially around the annular main beam 120, meaning that the included angle between any two adjacent radial secondary beams 130 is the same. Specifically, the number of radial secondary beams 130 can be 6, 7, 8, 9, 10, 11, or 12. Taking a number of 6 radial secondary beams 130 as an example, the included angle between adjacent radial secondary beams 130 is 60°. This ensures that the support strength of the corresponding system for the heliostat 200 at different positions is consistent.

[0030] The radial secondary beams 130 include a first end and a second end opposite to each other. The first end is rotatably connected to the annular main beam 120. An annular reinforcing ring is arranged around the circumferential outer side of the plurality of radial secondary beams 130. The second end is connected to the annular reinforcing ring. One end of the telescopic mechanism 140 is rotatably connected to the annular reinforcing ring, and the other end is rotatably connected to the heliostat 200.

[0031] The radial secondary beams 130 adopt variable cross-section I-beams or box beams. Specifically, the cross-section of the first end can be 300mm×200mm×10mm, and the cross-section of the second end can be 200mm×150mm×8mm. The material can be Q345B.

[0032] The annular reinforcing ring is preferably made of a box-shaped steel member (e.g., 200mm×150mm×8mm) that matches the second end section of the radial secondary beam 130, and is rigidly connected to each radial secondary beam 130 at the end by a full penetration weld.

[0033] One end of the telescopic mechanism 140 is rotatably connected to the annular main beam 120, and the other end is rotatably connected to the heliostat 200. It can be understood that since the radial secondary beam 130 is rotatably connected to the annular main beam 120, the connection position between the telescopic mechanism 140 and the heliostat 200 can be raised or lowered by the telescopic mechanism 140, thereby achieving the adjustment of the angle of the heliostat 200.

[0034] Specifically, the telescopic mechanism 140 is a telescopic rod, one end of which is rotatably connected to the annular main beam 120, and the other end is rotatably connected to the heliostat 200.

[0035] In this way, by setting radial secondary beams 130 and annular reinforcing rings, the stability of the support system 100 in supporting the heliostat 200 can be ensured. By setting annular main beam 120 that can rotate relative to the central column 110, the angle rotation of the heliostat 200 can be adjusted. By setting telescopic mechanism 140, the tilt angle of the heliostat 200 can be adjusted to adapt to the solar angle at different times, thereby improving the energy utilization rate of the heliostat 200.

[0036] In some embodiments of this application, the steel frame support system 100 of the heliostat 200 of the tower solar thermal power plant may include a plurality of auxiliary secondary beams 150, each of which corresponds to a radial secondary beam 130. The auxiliary secondary beam 150 is located below the radial secondary beam 130. Each auxiliary secondary beam 150 includes a third end and a fourth end, the third end of which is rotatably connected to the annular main beam 120, and the fourth end of which is connected to the annular reinforcing ring.

[0037] In the specific implementation process, when there are 6 radial secondary beams 130, there are also 6 auxiliary secondary beams 150; when there are 12 radial secondary beams 130, there are also 12 auxiliary secondary beams 150.

[0038] Therefore, by setting auxiliary secondary beams 150 that cooperate with radial secondary beams 130, the vertical structural strength of the support system 100 can be further improved, and the support stability of the support system 100 for the heliostat 200 can be further improved.

[0039] In some embodiments of this application, the steel frame support system 100 of the heliostat 200 of the tower solar thermal power plant may include a plurality of support rods 160. The support rods 160 are located between the radial secondary beams 130 and the auxiliary secondary beams 150. One end of the support rod 160 is connected to the radial secondary beams 130 and the other end is connected to the auxiliary secondary beams 150.

[0040] Therefore, by setting multiple support rods 160, the structural strength of the support system 100 in the vertical and horizontal directions can be further improved, the load transfer between the radial secondary beams 130 and the auxiliary secondary beams 150 can be improved, and the support stability of the support system 100 for the heliostat 200 can be further improved.

[0041] In the actual process, the corresponding radial secondary beam 130 and auxiliary secondary beam 150 can be connected and supported by two support rods 160.

[0042] Furthermore, from top to bottom, the support rod 160 is inclined toward the annular main beam 120.

[0043] Understandably, the diagonal support rod 160 can directly resist horizontal loads (such as wind and seismic forces) while also sharing some of the vertical loads, thus preventing the structure from deforming or collapsing due to horizontal forces.

[0044] The angle between the extension direction of the support rod 160 and the horizontal plane is greater than or equal to 60° and less than or equal to 75°.

[0045] In the specific implementation process, the angle between the extension direction of the support rod 160 and the horizontal plane can be 60°, 65°, 70° or 75°.

[0046] In this way, the angle between the extension direction of the support rod 160 and the horizontal plane is set to be greater than or equal to 60° and less than or equal to 75°, so that the support rod 160 achieves a balance between the "core lateral resistance function" and the "auxiliary load-bearing function". This ensures that the horizontal component force is large enough to handle the horizontal load, and that the total axial force of the support rod 160 is not too large due to the angle being too small, or that the support rod loses its lateral resistance function due to the angle being too large.

[0047] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0048] The above description is merely a specific embodiment of this utility model, enabling those skilled in the art to understand or implement it. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this utility model. Therefore, this utility model is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features of the utility model herein.

Claims

1. A steel frame support system for a heliostat in a tower-type solar thermal power plant, characterized in that, include: A central column, which is vertically installed on the working ground; A ring-shaped main beam is fitted onto the top of the central column and is rotatably connected to the central column. Multiple radial secondary beams are arranged circumferentially on the annular main beam. A heliostat is mounted on the multiple radial secondary beams. Each radial secondary beam includes a first end and a second end opposite to each other. The first end is rotatably connected to the annular main beam. A ring-shaped reinforcing ring is provided around the circumferential outer side of the plurality of radial secondary beams, and the second end is connected to the ring-shaped reinforcing ring; The telescopic mechanism has one end rotatably connected to the annular main beam and the other end rotatably connected to the heliostat.

2. The steel frame support system for the heliostat of a tower-type solar thermal power plant according to claim 1, characterized in that, include: Multiple auxiliary secondary beams are provided, each corresponding to one of the radial secondary beams. The auxiliary secondary beams are located below the radial secondary beams. Each auxiliary secondary beam includes a third end and a fourth end, the third end of which is rotatably connected to the annular main beam, and the fourth end of which is connected to the annular reinforcing ring.

3. The steel frame support system for the heliostat of a tower-type solar thermal power plant according to claim 2, characterized in that, include: Multiple support rods are provided, which are located between the radial secondary beams and the auxiliary secondary beams. One end of each support rod is connected to the radial secondary beams, and the other end is connected to the auxiliary secondary beams.

4. The steel frame support system for the heliostat of a tower-type solar thermal power plant according to claim 3, characterized in that, From top to bottom, the support rod is inclined toward the annular main beam.

5. The steel frame support system for the heliostat of a tower-type solar thermal power plant according to claim 3, characterized in that, The angle between the extension direction of the support rod and the horizontal plane is greater than or equal to 60° and less than or equal to 75°.

6. The steel frame support system for the heliostat of a tower-type solar thermal power plant according to claim 3, characterized in that, The telescopic mechanism is a telescopic rod, one end of which is rotatably connected to the annular main beam, and the other end is rotatably connected to the heliostat.

7. The steel frame support system for the heliostat of a tower-type solar thermal power plant according to claim 1, characterized in that, The radial secondary beams are detachably connected to the heliostat.

8. The steel frame support system for the heliostat of a tower-type solar thermal power plant according to claim 1, characterized in that, Also includes: A support base is fixed to the working ground, and a central column is fixed to the support base.

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