CN209978416U

CN209978416U - Heliostat support with corner brace

Info

Publication number: CN209978416U
Application number: CN201920703061.2U
Authority: CN
Inventors: 李红星; 何邵华; 许可; 薛珉
Original assignee: Northwest Electric Power Design Institute of China Power Engineering Consulting Group
Current assignee: Northwest Electric Power Design Institute of China Power Engineering Consulting Group
Priority date: 2019-05-16
Filing date: 2019-05-16
Publication date: 2020-01-21
Anticipated expiration: 2029-05-16

Abstract

The utility model discloses a heliostat support of area corner brace relates to the equipment support of solar thermal power plant mirror factory. A heliostat support with a corner brace comprises a stand column, wherein a torque tube for executing sun-chasing actions is arranged on the stand column; torque tube end plates are arranged on two end faces of the torque tube, upper chords for supporting trusses are arranged on the upper end faces of the torque tube end plates, and lower chords for supporting trusses are arranged below the lower end faces of the torque tube end plates; a plurality of main purlins are arranged on the two supporting trusses, the length of each main purlin is larger than the distance between the outer end faces of the supporting trusses, and mirror faces are placed on the main purlins; and a corner brace is arranged between the main purlines with preset number and the lower chord. The space rigidity of the supporting truss and the main purline can be increased through the corner brace, so that the deformation of the structure under the action of wind load is obviously improved, the wind vibration effect of the mirror surface is weakened, and the light condensation efficiency of the structure is improved.

Description

Heliostat support with corner brace

Technical Field

The utility model relates to an equipment support of solar thermal power plant mirror factory, concretely relates to heliostat support of area corner brace.

Background

In a solar thermal power station, a heliostat is one of the most core components of a light condensation system, and is a main mechanism for realizing the actions of sun-fixing and sun-following, and the power generation efficiency is directly influenced by the quality of the light condensation effect, so that the wind vibration effect of a heliostat support under the action of wind load needs to be reduced.

The traditional supporting structure of the heliostat mirror surface is often a single truss, although the requirement of engineering rigidity is met, the mirror surface is not strongly restrained by purlins, a stable space supporting system is difficult to form, and the structure is easy to vibrate under the action of wind load. Therefore, when the support is subjected to the action of strong wind, the support can generate larger vibration, and the mirror surface is unstable due to fatigue damage of the structure, so that the light condensation efficiency is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned prior art's shortcoming, provide a heliostat support of taking corner brace.

In order to achieve the above purpose, the utility model adopts the following technical scheme to realize:

a heliostat support with a corner brace comprises a stand column, wherein a torque tube for executing sun-chasing actions is arranged on the stand column;

torque tube end plates are arranged on two end faces of the torque tube, upper chords for supporting trusses are arranged on the upper end faces of the torque tube end plates, and lower chords for supporting trusses are arranged below the lower end faces of the torque tube end plates;

a plurality of main purlins are erected between the two upper chords, the length of each main purlin is greater than the distance between the outer end faces of the support trusses, and mirror faces are placed on the main purlins;

and a corner brace is arranged between the main purlines with preset number and the lower chord.

Furthermore, at least two corner supports are arranged on the main purlines of the corner supports and are positioned on two sides of the lower chord.

Furthermore, the angle braces are distributed in an axial symmetry mode relative to the lower chord, and the geometric shape formed by two angle braces positioned on the same main purline on two sides of the lower chord and the orthographic projection of the two angle braces on the main purline is a triangle.

Furthermore, a straight web member and an inclined web member are arranged between the lower chord member and the upper chord member.

Furthermore, the tail end of the main purline is provided with a side purline.

Furthermore, the top elevation of the main purline is the same as that of the side purlines.

Furthermore, the sun tracking action of the torque tube comprises the action of rotating by taking the center line of the torque tube as a rotating shaft, and the rotation is realized by a hydraulic push rod.

Furthermore, the sun-tracking action of the torque tube comprises the action of rotating by taking the center line of the upright post as a rotating shaft, and the rotation is realized by a rotary speed reducer.

Furthermore, the sun-tracking action of the torque tube is driven by the driving device.

Compared with the prior art, the utility model discloses following beneficial effect has:

in the heliostat support with the corner brace, the corner brace is arranged between the lower chord and some main purlines to provide supporting force for the main purlines, which is helpful for resisting external force and keeping the stability of the heliostat support; furthermore, the main purlines positioned on the two sides of the supporting truss are respectively provided with a corner brace, and the orthographic projections of the two corner braces and the corner brace on the main purlines are triangular, so that the space rigidity of the supporting truss and the main purlines can be increased, the deformation of the structure under the action of wind load is obviously improved, the wind vibration effect of a mirror surface is further weakened, and the light gathering efficiency of the structure is improved; furthermore, a plurality of corner supports can be arranged on one main purline, and the corner supports on two sides of the support truss on any two same main purlines and the orthographic projections of the corner supports on the main purlines are triangular, so that the space rigidity of the support truss is further increased; furthermore, the straight web members and the inclined web members between the lower chord member and the upper chord member improve the mechanical stability of the support truss; the edge purlines at the tail ends of the main purlines can enhance the overall rigidity outside the plane of the main purlines; the heliostat support with the corner brace can greatly reduce the wind vibration effect and greatly improve the light condensation efficiency.

Drawings

FIG. 1 is a three-dimensional view of a heliostat support structure with a corner brace of the present invention;

FIG. 2 is a front view of a heliostat support structure with a corner brace of the invention;

FIG. 3 is a top view of a heliostat support structure with a corner brace of the present invention;

FIG. 4 is a left side view of a heliostat support structure with a corner brace of the invention;

fig. 5 is a left side view of the torque tube end plate of the present invention;

fig. 6 is the front view of the torque tube end plate of the present invention.

Wherein: 1-upright column; 2-torque tube; 3-supporting a truss; 4-main purlin; 5-edge purline; 6-a knee brace; 7-mirror surface; 8-a drive device; 9-torque tube end plate.

Detailed Description

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The present invention will be described in further detail with reference to the accompanying drawings:

referring to fig. 1, fig. 1 is a three-dimensional view of a heliostat support with a corner brace according to the present invention; the heliostat support with the angle brace comprises a vertical column 1, a torque tube 2, a support truss 3, a main purline 4, an edge purline 5, the angle brace 6, a mirror surface 7, a driving device 8 and a torque tube end plate 9; the solar energy sun tracking device is characterized in that a torque tube 2 used for executing sun tracking actions is arranged on a stand column 1, two ends of the torque tube 2 are provided with equal torque tube end plates 9, a support truss 3 comprises upper chords, lower chords, straight web members and inclined web members, all the components are welded to form the solar energy sun tracking device, the torque tube end plates 9 are located between the upper chords and the lower chords, a plurality of main purlins 4 are arranged between the two upper chords and extend outwards, the tail ends of the main purlins 4 with preset number are provided with side purlins 5, the corner braces 6 are arranged between the lower chords and the main purlins 4 and are symmetrically distributed about the lower chords, the geometric figures of line segments between two corner braces 6 on the same main purlins 4 and the two corner braces are triangular, the mechanical property of the main purlins 4 is more stable, and in addition, a plurality of groups of corner braces 6.

The upright column 1 can be a concrete cylinder or a hollow round steel column and is positioned at the lower part of the structure; the driving device 8 is rigidly connected with the upper part of the upright post 1 through a flange plate, the torque tube 2 is connected with the driving device 8 in the middle part, and the two ends of the torque tube are respectively bolted with the torque tube end plates 9 on the two sides; the torque tube end plate 9 is formed by combining two steel plates, and the peripheries of the steel plates are respectively welded with the two vertical web members and the upper and lower chords in the middle of the supporting truss 3; the main purline 4 is connected with the upper part of the support truss 3 through bolts, the edge purline 5 is an edge sealing purline of the main purline 4, and the upper surface of the edge sealing purline is flush with the main purline 4; one end of the angle brace 6 is connected with the supporting truss 3, and the other end is connected with the main purline 4 in a hinged mode; the mirror surface is supported on the upper surfaces of the main purlines 4 and the edge purlines 5.

The angle braces 6 are arranged on two sides of each supporting truss in a triangular mode, the space rigidity of the supporting trusses and the main purlines can be increased, the deformation of the structure under the action of wind load can be obviously improved, the wind vibration effect of the mirror face is weakened, and the light condensation efficiency of the structure is improved.

Referring to fig. 2, fig. 2 is the front view of heliostat supporting structure of area corner brace of the utility model, corner brace 6 in this embodiment sets up about the bracing truss 3 symmetry, the utility model discloses in do not do the restriction about bracing truss 3 symmetry to corner brace 6, the condition of asymmetric setting can increase bracing truss and main purlin space rigidity equally, also is in the utility model discloses a protection scope.

Referring to fig. 3, fig. 3 is a top view of the heliostat support with a corner brace of the present invention, wherein a part of the main purlins 4 are provided with the corner brace 6, the rest are not provided with the corner brace 6, and whether the corner brace 6 is required to be arranged on the main purlins 4 or not can be adjusted according to actual conditions.

Referring to fig. 4, fig. 4 is a left side view of the heliostat support structure with a corner brace of the present invention, and it can be seen that the support truss 3 includes an upper chord, a lower chord, a straight web member and an inclined web member, which improves the mechanical stability of the support truss.

Referring to fig. 5 and 6, fig. 5 and 6 are a left side view and a front view of the torque tube end plate of the present invention; the middle of the inside of the two steel plates is welded with a torque tube, the periphery of the torque tube is connected through bolts, and the whole end plate is welded with the truss. The torque tube 2 drives the truss and the mirror surface to rotate through the torque tube end plate.

The above contents are only for explaining the technical idea of the present invention, and the protection scope of the present invention cannot be limited thereby, and any modification made on the basis of the technical solution according to the technical idea of the present invention all fall within the protection scope of the claims of the present invention.

Claims

1. A heliostat support with a corner brace is characterized by comprising a vertical column (1), wherein a torque tube (2) for executing sun-chasing actions is arranged on the vertical column (1);

two end faces of the torque tube (2) are respectively provided with a torque tube end plate (9), the upper end face of each torque tube end plate (9) is provided with an upper chord member for supporting the truss (3), and the lower end face of each torque tube end plate (9) is provided with a lower chord member for supporting the truss (3);

a plurality of main purlines (4) are erected between the two upper chords, the length of each main purline (4) is larger than the distance between the outer end faces of the support trusses (3), and mirror faces (7) are placed on the main purlines (4);

and a corner brace (6) is arranged between the main purlines (4) with preset number and the lower chord.

2. Heliostat support with a corner brace according to claim 1, characterized in that at least two corner braces (6) are provided on the primary purlin (4) of a corner brace (6), said two corner braces (6) being located on either side of the lower chord.

3. Heliostat support with bracings according to claim 2, characterized in that said bracings (6) are distributed axisymmetrically with respect to the lower chord, the geometry of two bracings (6) on the same primary purlin (4) on both sides of the lower chord and their orthographic projection on said primary purlin (4) being triangular.

4. The heliostat support with a corner brace of claim 1 wherein a straight web member and a diagonal web member are provided between the lower chord and the upper chord.

5. Heliostat support with a corner brace according to claim 1, characterized in that the ends of the primary purlins (4) are provided with side purlins (5).

6. The heliostat support with a corner brace of claim 5, wherein the primary purlins (4) are at the same elevation as the edge purlins (5).

7. Heliostat support with a corner support according to claim 1, characterized in that the sun-tracking action of the torque tube (2) comprises an action of rotation about its own centre line as rotation axis, the rotation being achieved by hydraulic push-rods.

8. Heliostat support with a corner support according to claim 1, characterized in that the sun-tracking action of the torque tube (2) comprises an action of rotation about the central axis of the upright (1) as axis of rotation, the rotation being effected by means of a slewing reducer.

9. Heliostat support with a corner support according to claim 1, 7 or 8, characterized in that the sun-following action of the torque tube (2) is driven by a drive device (8).