CN219976784U

CN219976784U - Heliostat structure

Info

Publication number: CN219976784U
Application number: CN202321238632.2U
Authority: CN
Inventors: 刘天野; 韩缚龙; 廉磊
Original assignee: Hengji Nengmai New Energy Technology Co ltd
Current assignee: Hengji Nengmai New Energy Technology Co ltd
Priority date: 2023-05-19
Filing date: 2023-05-19
Publication date: 2023-11-07
Anticipated expiration: 2033-05-19

Abstract

The utility model relates to the technical field of heliostats, in particular to a heliostat structure; the main beam avoiding problem in the prior art is solved, the integral strength of the structure is ensured, and the volume of the supporting seat is reduced; comprising the following steps: a reflecting mirror for reflecting sunlight; the truss is used for integrally supporting the reflecting mirror, and the reflecting mirror is arranged on the truss; the main beam is provided with a necking part in the middle part and straight pipe parts on two sides, and the diameter of the necking part is smaller than that of the straight pipe parts; the truss is arranged at the straight pipe part on the main beam; the support seat is used for supporting the main beam and driving the main beam to rotate and revolve, and the necking part of the main beam is connected with the support seat. A conical transition part is arranged between the neck part and the straight pipe part of the main beam. The support seat comprises a rotary speed reducer, a mounting seat arranged at the output shaft of the rotary speed reducer, a bracket hinged to the mounting seat and a driving assembly for providing power for rotation of the bracket, and the necking part of the main beam is arranged at the bracket.

Description

Heliostat structure

Technical Field

The utility model relates to the technical field of heliostats, in particular to a heliostat structure.

Background

In a photo-thermal tower type power generation system, heliostats bear the core function of concentrating and collecting heat, the heliostats reflect and collect the heat of sunlight to the top of a heat absorption tower, and the heat absorption tower uses solar energy for a subsequent power generation system through heat absorption or heat conduction media.

For example, the Chinese patent utility model discloses a heliostat (publication No. CN 206469525U) for a tower type solar thermal power plant, which comprises a heliostat body, a connecting seat, a horizontal angle driving device, an azimuth angle driving device and an upright post; the mirror body comprises a reflecting surface and a reflecting surface bracket for supporting the reflecting surface; the reflecting surface bracket comprises a main beam and an auxiliary beam which is vertically and fixedly connected with the main beam, and the reflecting surface is fixedly connected with the auxiliary beam; the connecting seat comprises a central rotating shaft, a base and a support column positioned between the central rotating shaft and the base, and the central rotating shaft is rotationally connected with the main beam through a first connecting piece; the horizontal angle driving device is hinged with the main beam through a second connecting piece; the azimuth driving device is fixedly connected with the base of the connecting seat; the upright posts are used for supporting the whole heliostat; the first connecting piece and/or the second connecting piece are/is fixedly connected with the main beam through the reinforcing plate. Through setting up the reinforcing plate can effectively increase the area of contact between connecting piece and the girder surface, improve the intensity of fixed connection between connecting piece and the girder surface, extension heliostat's life.

However, when the present inventors embodied this device, the following drawbacks were found to exist: in the heliostat structure, the main girder bears the main supporting and wind deformation resisting functions, so that the main girder needs to be increased in rigidity as much as possible, and in the mode of increasing the rigidity, the diameter of the main girder is increased most directly and effectively; however, in the operation process of the heliostat, the main beam needs to perform rotary motion around the supporting shaft to adjust the pitch angle of the mirror surface, and the following problems are caused by the overlarge main beam diameter:

1. the volume of the main beam supporting seat can be increased, the structural design difficulty is increased, the avoiding distance between the main beam supporting seat and the center of the main beam is increased, the supporting seat is difficult to model, and the cost is increased;

2. the girder is conventionally designed in the middle, the axis is aligned with the center of the mirror surface of the heliostat, the diameter of the girder is increased, so that the distance between the rotation center of the supporting seat and the center of the heliostat is increased, and the dead weight and wind load moment to be overcome when the heliostat rotates are increased.

Disclosure of Invention

Therefore, the technical problem to be solved by the utility model is to overcome the main beam avoiding problem in the prior art, and simultaneously ensure the integral strength of the structure and reduce the volume of the support seat.

To this end, the present utility model provides a heliostat structure comprising:

a reflecting mirror for reflecting sunlight;

the truss is used for integrally supporting the reflecting mirror, and the reflecting mirror is arranged on the truss;

the main beam is provided with a necking part in the middle part and straight pipe parts on two sides, and the diameter of the necking part is smaller than that of the straight pipe parts; the truss is arranged at the straight pipe part on the main beam;

the support seat is used for supporting the main beam and driving the main beam to rotate and revolve, and the necking part of the main beam is connected with the support seat.

As a preferable scheme, a conical transition part is arranged between the neck part and the straight pipe part of the main beam.

As a preferable scheme, the supporting seat comprises a rotary speed reducer, a mounting seat arranged at an output shaft of the rotary speed reducer, a bracket hinged on the mounting seat and a driving component for providing power for rotation of the bracket, and the necking part of the main beam is arranged at the bracket; further, the driving assembly can adopt a driving cylinder, the driving cylinder is hinged to the support, the output end of the driving cylinder is hinged to the mounting seat, and further the driving cylinder can adopt a hydraulic cylinder, an electric cylinder or a pneumatic cylinder and the like, and the electric cylinder is preferred.

As a preferable scheme, the support comprises a connecting seat hinged with the mounting seat and a bearing seat hinged with the driving assembly, and the connecting seat and the bearing seat are fixedly connected with the neck part of the main beam.

As a preferable scheme, arc-shaped bearing plates are arranged at the connecting seat and the bearing seat; further arc bearing plate and girder necking down portion welding as an organic whole.

As a preferable scheme, a clamping plate seat is arranged at the straight pipe part of the main beam, and the truss is fixedly arranged at the clamping plate seat; the further clamping plate seat comprises two steel plates which are arranged flatly, the steel plates are welded with the straight pipe parts of the main beam, the truss is positioned between the two steel plates, and the truss is detachably connected with the steel plates through bolts; in another embodiment the truss may also be welded to the steel plate.

As a preferable scheme, the straight pipe part, the shrinkage part and the conical transition part of the main beam are of an integrated structure; furthermore, the main beam can be integrally cast and formed, and the straight pipe part, the necking part and the conical transition part section can be welded and connected into a whole after being forged; or are integrally connected through flanges, bolts and the like.

As a preferable scheme, a plurality of uniformly distributed supporting pieces are arranged on the truss, each supporting piece comprises a screw rod screwed on the truss and a tray fixedly arranged on the screw rod, and the tray is fixedly connected with the reflecting mirror.

The technical scheme provided by the utility model has the following advantages:

according to the heliostat structure, the diameter of the main beam at the middle part of the supporting seat, namely the necking part of the main beam, is smaller, so that the structural design difficulty and the rotation load are reduced; the support seat is not required to be enlarged, the modeling design difficulty of the support seat is reduced, and the production cost of the support seat is reduced; the distance between the rotation center of the supporting seat and the center of the reflecting mirror is reduced, so that the dead weight and wind load moment which need to be overcome when the heliostat rotates are effectively reduced; and the diameter of the main beam is increased at the positions close to the two ends of the reflecting mirror far away from the supporting seat, namely the straight pipe parts of the main beam, so that the overall rigidity of the main beam is improved, the overall supporting strength of the main beam is ensured, and the overall wind resistance of the heliostat structure is improved.

Drawings

In order to more clearly illustrate the technical solutions in the prior art or in the embodiments of the present utility model, the following brief description is given of the drawings used in the description of the prior art or the embodiments.

FIG. 1 is a schematic bottom perspective view of a heliostat structure of the utility model.

Fig. 2 is a schematic bottom plan view of fig. 1.

FIG. 3 is a schematic cross-sectional view of the structure at A-A in FIG. 2.

FIG. 4 is a schematic view of the cross-sectional structure at B-B in FIG. 3.

Fig. 5 is a schematic perspective view of the main beam.

Reference numerals: 1. a reflecting mirror; 2. truss; 3. a main beam; 4. a neck part is contracted; 5. a straight pipe section; 6. a support base; 7. a tapered transition portion; 8. a rotary speed reducer; 9. a mounting base; 10. a drive assembly; 11. a connecting seat; 12. a support bracket; 13. arc-shaped supporting plates; 14. a clamping plate seat; 15. a screw; 16. and a tray.

Detailed Description

In order that those skilled in the art will better understand the present solution, a technical solution according to an embodiment of the present utility model will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiment is only a part of the embodiment of the present utility model, not all of the embodiment. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, shall fall within the scope of the utility model.

It should be noted that the terms "first," "second," and the like in the claims and description herein are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. 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 limited to those steps or elements that are expressly listed or inherent to such process, method, article, or apparatus.

In the present utility model, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present utility model and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations. Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present utility model can be understood by those skilled in the art according to the specific circumstances. In addition, the term "plurality" shall mean two as well as more than two. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

The utility model will be described in detail below with reference to the drawings in connection with embodiments.

The heliostat structure provided in this embodiment, as shown in fig. 1-4, includes: a reflecting mirror 1 for reflecting sunlight; truss 2, is used for supporting the whole of the reflecting mirror 1, the reflecting mirror 1 is installed on truss 2; the main beam 3, the middle part of the main beam 3 is provided with a necking part 4, two sides are provided with straight pipe parts 5, and the diameter of the necking part 4 is smaller than that of the straight pipe parts 5; the truss 2 is arranged at a straight pipe part 5 on the main beam 3; the support seat 6 is used for supporting the main beam 3 and driving the main beam 3 to rotate and revolve, and the neck 4 of the main beam 3 is connected with the support seat 6; more specifically, the diameters of the constricted portion 4 and the straight portion 5 of the main beam 3 are adaptively designed according to the overall weight of the truss 2 and the reflecting mirror 1, and are not further limited herein.

In the heliostat structure provided by the embodiment, a conical transition part 7 is arranged between the necking part 4 and the straight pipe part 5 of the main beam 3; a tapered transition area with a certain length is reserved between the shrinkage part 4 and the straight pipe part 5, so that the diameter of the main beam 3 is changed gently, the internal stress of the main beam 3 caused by the diameter change is reduced, and the structural strength and the bearing capacity of the main beam 3 are ensured.

The heliostat structure provided by the embodiment comprises a supporting seat 6, a rotating speed reducer 8, a mounting seat 9 arranged at an output shaft of the rotating speed reducer 8, a bracket hinged to the mounting seat 9 and a driving assembly 10 for providing power for rotation of the bracket, wherein a necking part 4 of a main beam 3 is arranged at the bracket; further, the driving assembly 10 may adopt a driving cylinder, the driving cylinder is hinged on the bracket, the output end of the driving cylinder is hinged with the mounting seat 9, and further the driving cylinder may adopt a hydraulic cylinder, an electric cylinder or a pneumatic cylinder, etc., preferably an electric cylinder; the main beam 3 is driven to do circular motion in the horizontal direction through the rotary speed reducer 8, so that the direction of the reflecting mirror 1 on the truss 2 is adjusted, the rotation angle of the main beam 3 on the bracket is adjusted by controlling the output end of the driving cylinder to stretch or shorten, the inclination angle of the reflecting mirror 1 is adaptively adjusted, the reflecting mirror 1 is positioned at the optimal reflecting position and reflecting angle of sunlight, and the sunlight reflectivity is improved; furthermore, the driving cylinder and the rotary speed reducer 8 can realize automatic control through an external PLC system, and the position and the angle of the reflecting mirror 1 can be automatically adjusted according to the movement of the sun.

The heliostat structure provided by the embodiment comprises a connecting seat 11 hinged with a mounting seat 9 and a bearing seat 12 hinged with a driving assembly 10, wherein the connecting seat 11 and the bearing seat 12 are fixedly connected with the necking part 4 of a main beam 3; the bracket adopts a mode of separating the connecting seat 11 from the bearing seat 12 to realize the fixed support of the shrinkage part 4 of the main beam 3, so that the installation convenience of the shrinkage part 4 of the main beam 3 can be improved; the connecting seat 11 provides pulling force for the main beam 3, the bearing seat 12 provides supporting force for the main beam 3, and the weight of the main beam 3 is transferred to the installation seat 9 through the connecting seat 11 and the bearing seat 12, so that the stress balance of the installation seat 9 is ensured, the installation seat 9 is prevented from excessively bearing the acting force deviating from the central axis of the installation seat, and the installation stability of the heliostat structure is ensured.

In the heliostat structure provided by the embodiment, arc-shaped bearing plates 13 are arranged at the connecting seat 11 and the bearing seat 12; the further arc-shaped supporting plate 13 is welded with the neck 4 of the main beam 3 into a whole; the contact area of the connecting seat 11 and the neck 4 of the main beam 3 can be increased through the arc-shaped bearing plate 13, so that the connection firmness of the connecting seat 11 and the neck 4 of the main beam 3 can be improved.

In the heliostat structure provided by the embodiment, the clamping plate seat 14 is arranged at the straight pipe part 5 of the main beam 3, and the truss 2 is fixedly arranged at the clamping plate seat 14; the further clamping plate seat 14 comprises two steel plates which are arranged flatly, the steel plates are welded with the straight pipe part 5 of the main beam 3, the truss 2 is positioned between the two steel plates, and the truss 2 is detachably connected with the steel plates through bolts; truss 2 may also be welded to the steel plate in another embodiment; more specifically, the clamping plate seat 14 is welded on the main beam 3, and the beam frame on the truss 2 is installed at the clamping plate seat 14, so that the installation firmness of the truss 2 and the straight pipe part 5 of the main beam 3 can be improved, and the overall strength of the heliostat structure is further improved.

In the heliostat structure provided by the embodiment, the straight pipe part 5, the necking part 4 and the conical transition part 7 of the main beam 3 are of an integrated structure; furthermore, the main beam 3 can be integrally cast and formed, and the straight pipe part 5, the necking part 4 and the conical transition part 7 can be integrally welded after being forged in a segmented mode; or are connected into a whole through a flange, a bolt and the like; preferably, the straight pipe part 5, the necking part 4 and the conical transition part 7 are integrally cast and formed, the structural strength of the main beam 3 in the processing mode is optimal, the main beam 3 is not required to be assembled, and the installation convenience is improved.

In the heliostat structure provided by the embodiment, a plurality of uniformly distributed supporting pieces are arranged on a truss 2, each supporting piece comprises a screw 15 screwed on the truss 2 and a tray 16 fixedly arranged on the screw 15, and the tray 16 is fixedly connected with a reflecting mirror 1; through support piece, can increase the area of contact between truss 2 and the speculum 1 to improve the support stability of truss 2 to speculum 1, provide the installation stability of speculum 1 in truss 2 department, effectively reduce simultaneously that speculum 1 single point concentrates the atress and appears breaking the condition emergence.

When the heliostat structure of the embodiment is used, the heliostat structure is installed at a required position, an external driver is controlled by an external PLC system to drive a rotary speed reducer 8 to start, a mounting seat 9 drives a main beam 3 to rotate in the horizontal direction, the output end of a driving cylinder is controlled to extend or shorten, and the main beam 3 on a bracket is driven to rotate, so that the inclination angle of a reflecting mirror 1 is adjusted, and the heliostat structure is in an optimal reflecting state of sunlight.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. And obvious changes and modifications which are extended therefrom are still within the scope of the present innovative teachings.

Claims

1. A heliostat structure, comprising:

a reflecting mirror (1) for reflecting sunlight;

the truss (2) is used for integrally supporting the reflector (1), and the reflector (1) is mounted on the truss (2);

the main beam (3), the middle part of the main beam (3) is provided with a shrinking neck part (4), two sides are provided with straight pipe parts (5), and the diameter of the shrinking neck part (4) is smaller than that of the straight pipe parts (5); the truss (2) is arranged at a straight pipe part (5) on the main beam (3);

the support seat (6) is used for supporting the main beam (3) and driving the main beam (3) to rotate and revolve, and the neck (4) of the main beam (3) is connected with the support seat (6).

2. Heliostat structure according to claim 1, characterized in that a conical transition (7) is provided between the neck (4) and the straight tube (5) of the girder (3).

3. Heliostat structure according to claim 1, characterized in that the support (6) comprises a slewing reducer (8), a mounting (9) mounted at the output shaft of the slewing reducer (8), a bracket hinged to the mounting (9) and a driving assembly (10) powering the rotation of the bracket, the neck (4) of the girder (3) being mounted at the bracket.

4. A heliostat structure according to claim 3, wherein the support comprises a connection seat (11) hinged to the mounting seat (9) and a bearing seat (12) hinged to the driving assembly (10), both the connection seat (11) and the bearing seat (12) being fixedly connected to the neck (4) of the main beam (3).

5. Heliostat structure according to claim 4, characterized in that the connection base (11) and the support base (12) are each provided with an arc-shaped support plate (13).

6. Heliostat structure according to claim 2, characterized in that the straight tube portion (5) of the girder (3) is fitted with a clamp plate seat (14), the truss (2) being fixedly fitted at the clamp plate seat (14).

7. Heliostat structure according to claim 2, characterized in that the straight tube portion (5), the necked portion (4) and the tapered transition portion (7) of the main beam (3) are of unitary construction.

8. Heliostat structure according to claim 1, characterized in that the truss (2) is provided with a plurality of uniformly distributed supporting elements, the supporting elements comprise screws (15) screwed on the truss (2) and trays (16) fixedly mounted on the screws (15), and the trays (16) are fixedly connected with the reflecting mirror (1).