Connecting structure for improving surface shape quality of heliostat
Technical Field
The utility model belongs to the energy is collected and is utilized the field, concretely relates to a connection structure for improving heliostat shape of face quality.
Background
At present, a heliostat is the most basic light-gathering unit body in a tower type solar photo-thermal power station, and as a key part of the tower type solar photo-thermal power station, the heliostat occupies the main part of the investment of the power station and occupies the main field of the power station.
With the continuous development and progress of the photo-thermal power generation technology, the heliostat has the characteristics of large area and multiple sub-mirrors. Each heliostat consists of a plurality of sub-mirror units, and each sub-mirror consists of a glass mirror and a back plate structure. Each sub-mirror is connected to the heliostat support structure by 4 bolt columns. The secondary mirror is of a composite structure, and the heliostat supporting structure is mainly made of carbon steel. The sub-mirrors and heliostat support structures have different coefficients of thermal expansion. When the heliostat works, the ambient temperature changes. At present, the photothermal resources are mainly concentrated in the northwest of China, and the temperature difference change in the northwest is large. Because the coefficient of thermal expansion of the secondary mirror and the heliostat supporting structure is different, when the temperature changes, the deformation of the secondary mirror and the heliostat supporting structure is different, the surface shape cannot be ensured, the reflection efficiency of the heliostat is influenced, and the power generation efficiency of the photo-thermal power plant is influenced.
Disclosure of Invention
The utility model discloses a connection structure for improving heliostat shape of face quality to solve any problem in the above-mentioned and other potential problems of prior art.
In order to achieve the above purpose, the technical scheme of the utility model is that: a connecting structure for improving the surface shape quality of a heliostat comprises a plurality of connecting structure units, wherein a back plate of each sub-mirror of a heliostat mirror surface is connected with a heliostat supporting structure through one connecting structure unit, the structure and the installation mode of each connecting structure unit are the same, and each connecting structure unit comprises 4 connecting bolts and 4 supports;
the 4 supports are a fixed support, a horizontal sliding support, a vertical sliding support and a diagonal sliding support in sequence;
4 connecting bolts all with the backplate is connected, fixed support, horizontal sliding support, vertical sliding support and diagonal sliding support connect one respectively connecting bolts, just fixed support, horizontal sliding support, vertical sliding support and diagonal sliding support all with heliostat bearing structure is connected.
Further, the fixed support with diagonal sliding support is the diagonal setting, horizontal sliding support and vertical sliding support are the diagonal setting.
Further, the fixed support and the horizontal sliding support are symmetrically arranged, and the vertical sliding support and the diagonal sliding support are symmetrically arranged.
Further, the sliding distance of the horizontal sliding support, the vertical sliding support and the diagonal sliding support is not more than 1 mm.
Further, the horizontal sliding support, the vertical sliding support and the diagonal sliding support are all one-way sliding supports.
Further, the one-way sliding support comprises a shell with a sliding cavity, a lubricating layer and a sliding block;
the lubricating layer is arranged on the inner side surface of the shell with the sliding cavity, the sliding block is arranged inside the shell with the sliding cavity, a sliding block connecting port is formed in one end of the shell with the sliding cavity, and the connecting bolt penetrates through the sliding block connecting port to be fixedly connected with the sliding block.
Furthermore, the lubricating layer is made of polytetrafluoroethylene.
Furthermore, the shell containing the sliding cavity and the sliding block are made of carbon steel.
The heliostat comprises a heliostat mirror surface and a heliostat supporting structure, wherein the heliostat mirror surface comprises a plurality of sub-mirrors, and each sub-mirror is connected with the heliostat supporting structure through the connecting structure unit. .
The utility model has the advantages that: by adopting the technical scheme, the utility model connects the sub-mirror and the heliostat supporting structure by means of the fixed support and the sliding support, thereby solving the influence on the surface shape quality of the heliostat during the temperature change and improving the reflection efficiency; meanwhile, the device has the advantages of simple structure and convenience in use, reduces the maintenance frequency, and greatly improves the power generation efficiency.
Drawings
Fig. 1 is a schematic structural diagram of a connection structure for improving the surface shape quality of a heliostat according to the present invention;
fig. 2 is a schematic front view of a connection structure for improving the surface shape quality of a heliostat according to the present invention;
fig. 3 is a top view of a connection structure for improving the surface shape quality of a heliostat according to the present invention;
fig. 4 is a schematic structural view of the one-way sliding support of the present invention.
In the figure:
1. glass, 2. a back plate, 3. a connecting bolt, 4. a support, 4-1. a fixed support, 4-2 sliding supports, 4-3. sliding supports, 4-4. sliding supports, 5. a one-way sliding support, 5-1. a shell, 5-2. a lubricating layer, 5-3. a sliding block and 5-4. a sliding block connecting port.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
On the contrary, the invention is intended to cover alternatives, modifications, equivalents and alternatives which may be included within the spirit and scope of the invention as defined by the appended claims. Furthermore, in order to provide a better understanding of the present invention to the public, certain specific details are set forth in the following detailed description of the invention. It will be apparent to those skilled in the art that the present invention may be practiced without these specific details.
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described with reference to the accompanying drawings and specific embodiments, but not limited thereto. The embodiments of the present invention will be described in detail below with reference to the accompanying drawings:
as shown in fig. 1, the utility model relates to a connection structure for improving the surface shape quality of a heliostat, the connection structure comprises a plurality of connection structure units, a back plate 2 of each sub-mirror of the surface of the heliostat is connected with a heliostat supporting structure through one connection structure unit, the structure and the installation mode of each connection structure unit are the same, and each connection structure unit comprises 4 connecting bolts 3 and 4 supports 4;
wherein, the 4 supports are a fixed support 4-1, a horizontal sliding support 4-2, a vertical sliding support 4-3 and a diagonal sliding support 4-4 in sequence;
the 4 connecting bolts 3 are all connected with the back plate 2, the fixed support 4-1, the horizontal sliding support 4-2, the vertical sliding support 4-3 and the diagonal sliding support 4-4 correspond to one connecting bolt 3 respectively and are connected with one end of the connecting bolt 3, and the fixed support 4-1, the horizontal sliding support 4-2, the vertical sliding support 4-3 and the diagonal sliding support 4-4 are all connected with the heliostat supporting structure.
The fixed support 4-1 and the diagonal sliding support 4-3 are arranged diagonally, and the horizontal sliding support 4-2 and the vertical sliding support 4-3 are arranged diagonally, as shown in fig. 3.
The fixed support 4-1 and the horizontal sliding support 4-2 are symmetrically arranged, and the vertical sliding support 4-3 and the diagonal sliding support 4-4 are symmetrically arranged, as shown in fig. 2.
The sliding distance between the horizontal sliding support 4-2, the vertical sliding support 4-3 and the diagonal sliding support 4-4 is not more than 1 mm.
The horizontal sliding support 4-2, the vertical sliding support 4-3 and the diagonal sliding support 4-4 are all one-way sliding supports.
As shown in fig. 4, the one-way sliding support 5 comprises a shell 5-1 containing a sliding cavity, a lubricating layer 5-2 and a sliding block 5-3;
the lubricating layer 5-2 is arranged on the inner side surface of the shell 5-1 with the sliding cavity, the sliding block 5-3 is arranged inside the shell 5-1 with the sliding cavity, one end of the shell 5-1 with the sliding cavity is provided with a sliding block connecting port 5-4, and the connecting bolt 3 penetrates through the sliding block connecting port 5-4 to be fixedly connected with the sliding block 5-3.
The lubricating layer 5-2 is made of polytetrafluoroethylene.
The shell 5-1 containing the sliding cavity and the sliding block 5-3 are made of carbon steel.
Each sub-mirror of the heliostat mirror surface is connected with the heliostat supporting structure through the connecting structure unit.
Example (b):
as shown in fig. 1, 4 connecting bolts 3 are arranged on a back plate 2 of each sub-mirror constituting the heliostat mirror surface, the 4 connecting bolts 3 constitute a rectangle, the 4 supports are arranged in the order of a fixed support 4-1, a horizontal sliding support 4-2, a vertical sliding support 4-3 and a diagonal sliding support 4-4, the fixed support 4-1 and the horizontal sliding support 4-2 are symmetrically arranged, the vertical sliding support 4-3 and the diagonal sliding support 4-4 are symmetrically arranged, the fixed support 4-1 and the diagonal sliding support 4-3 are arranged diagonally, the horizontal sliding support 4-2 and the vertical sliding support 4-3 are arranged, when the heliostat mirror surface is deformed at high temperature, the fixed support 4-1 is immovable and passes through the horizontal sliding support 4-2, the vertical sliding bearing 4-3 and the diagonal sliding bearing 4-4 release the deformation stress.
The above embodiments are only used for illustrating and not limiting the technical solutions of the present invention. Therefore, modifications or partial replacements, such as forms of fixed support and sliding support, etc., without departing from the spirit and scope of the present invention, should be covered within the protection scope of the present invention.