Top precision deviation rectifying device for prefabricated concrete stand column of heliostat

Abstract

The utility model belongs to the technical field of heliostat installation, and particularly relates to a heliostat prefabricated concrete stand column top precision deviation rectifying device which comprises a stand column body. The upright post end plate is fixed at the top of the upright post body; the base plate is arranged at the top of the stand column end plate, and a middle stand column is fixed to the center of the top of the base plate; the azimuth angle flange plate is arranged at the top of the middle stand column; and the heliostat body is fixed at the top of the azimuth flange plate. A plurality of parts such as the upright post end plate, the base plate, the middle upright post and the azimuth angle flange plate are arranged at the top of the heliostat upright post to form the deviation rectifying device, so that comprehensive precision deviation rectifying of the azimuth angle and levelness of the top of the heliostat upright post can be realized, the control precision is high, the operation is convenient, simple and flexible, and the installation precision of the heliostat is ensured; the method is suitable for high-precision deviation correction of stand columns such as photo-thermal power generation heliostats.

Description

Technical Field

[0001] The utility model belongs to the technical field of heliostat installation, and in particular relates to a precision deviation correction device for the top of a prefabricated concrete column of a heliostat. Background Art

[0002] Solar thermal power generation heliostat is a mirror reflector supported by a truss installed on a column, and it reflects sunlight to the heat absorption tower through polar axis rotation. The column is a part of the heliostat, and the orientation of each heliostat needs to be set according to the design requirements. The performance of the heliostat directly affects the overall performance of the heliostat. Therefore, the installation accuracy requirements of the heliostat column are very strict, specifically: the center position coordinate error is ±50mm, the top horizontal error is <1.5°, the vertical error is 0-1°, and the column azimuth angle error α is <+ / -2°.

[0003] In order to enable the installed heliostat column to achieve the installation accuracy, relevant devices are disclosed in the prior art. For example, the patent CN219528590U discloses a device for controlling the installation accuracy of a precast concrete column of a solar thermal power generation heliostat, including a positioning fixture, an azimuth control compass is fixedly connected to the positioning fixture, a direction arm is fixedly connected to the azimuth control compass, and the direction arm includes three arms, each of which is fixedly connected to a vertical laser, one of which is provided with a reading hole and a fixing bolt hole, and the fixing is installed on the hoisting column. The device disclosed in the patent eliminates the obstruction of the column structure itself when using traditional measuring instruments to control the center position, and the center position, azimuth, column verticality, and top horizontality are effectively controlled at the same time. When installing the column, it eliminates the simultaneous operation of multiple surveyors and multiple measuring tools, eliminates frequent operations, greatly reduces the mechanical and manual operation time, improves efficiency and energy saving, and reduces costs. It is undeniable that the device disclosed in the patent can indeed achieve the above-mentioned effects, but it still has certain shortcomings. The accuracy of the installation of the heliostat precast concrete columns is controlled by setting components such as an azimuth control compass, and the accuracy of the heliostat precast concrete columns that have been grouted and cured underground cannot be adjusted.

[0004] In the existing construction process, due to the difficulty in controlling the horizontality and azimuth of the top of the column, it is inevitable that there will be a small amount of construction errors in the horizontality and azimuth of the top of the column that exceed the design and specification requirements, thus affecting the overall performance of the heliostat. In order to ensure the installation accuracy of the column and adjust the accuracy, correction is required, but after the column is implanted and grouting is completed, the part below the ground has solidified, making adjustment very difficult. If rework is performed, since the position coordinates of the column have been determined by the design, excavation in situ and re-implantation of the column after pulling it out will affect the bearing capacity of the foundation, and the operation is very difficult; and it is impossible to guarantee that the accuracy error of the re-implanted column meets the standard; in addition, this operation requires multiple people to cooperate with multiple large equipment to work at the same time, the work efficiency is extremely low, and the cost of correction construction is high.

[0005] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0006] The utility model aims to provide a precision deviation correction device for the top of a heliostat precast concrete column, so as to solve the problem that the installation precision control device for the heliostat precast concrete column in the background technology controls the installation precision of the heliostat precast concrete column by setting components such as an azimuth control compass, and cannot adjust the precision of the heliostat precast concrete column whose underground part has been grouted and cured.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A precision deviation correction device for the top of a prefabricated concrete column of a heliostat, comprising:

[0009] Column body;

[0010] A column end plate fixed to the top of the column body;

[0011] A base plate is arranged on the top of the column end plate, and an intermediate column is fixed at the center position of the top of the base plate;

[0012] An azimuth flange disposed on the top of the intermediate column;

[0013] A heliostat body is fixed on the top of the azimuth flange.

[0014] Preferably, the outer diameter of the column end plate is the same as the outer diameter of the base plate.

[0015] Preferably, a plurality of ribs are evenly spaced and fixed on the outer wall of the middle column, and the base plate is welded to the bottom of the ribs.

[0016] Preferably, the azimuth flange is sleeved on the top of the middle column and a groove corresponding to the rib is opened on the inner wall.

[0017] Preferably, a connecting flange corresponding to the azimuth flange is fixed to the bottom of the heliostat body, and bolts are passed through the azimuth flange and the connecting flange and then threadedly connected with nuts to fix the heliostat body to the top of the azimuth flange.

[0018] Preferably, the connecting flange and the azimuth flange are provided with bolt holes corresponding to the bolts.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] The utility model forms a correction device by arranging a plurality of components such as a column end plate, a base plate, an intermediate column and an azimuth flange at the top of the heliostat column, so as to realize the comprehensive precision correction of the azimuth and horizontality of the top of the heliostat column, and has high control precision, simple and flexible operation, ensures the installation precision of the heliostat, and is suitable for high-precision correction of columns such as solar thermal power generation heliostats. Moreover, the precision correction of the azimuth and horizontality of the top of the heliostat column can be completed without rework, which is conducive to the smooth development of construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is a structural schematic diagram of the base plate and the middle column;

[0023] Figure 3 for Figure 2 A top view of

[0024] Figure 4 It is a schematic diagram of the structure of the azimuth flange.

[0025] Description of main reference numerals:

[0026] 1. Column body;

[0027] 2. Column end plate;

[0028] 3. Base plate;

[0029] 4. Middle column; 41. Rib plate;

[0030] 5. Azimuth flange; 51. Slot; 52. Bolt hole

[0031] 6. Heliostat body; 61. Connecting flange. DETAILED DESCRIPTION

[0032] The following is a clear and complete description of the technical solution of the utility model patent. Obviously, the described embodiments are part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by technicians in this field without creative work are within the scope of protection of the utility model.

[0033] Example

[0034] See attached Figure 1-4 , a precision deviation correction device for the top of a prefabricated concrete column of a heliostat, comprising:

[0035] Column body 1;

[0036] A column end plate 2 fixed to the top of the column body 1;

[0037] A base plate 3 is arranged on the top of the column end plate 2, and an intermediate column 4 is fixed at the center of the top of the base plate 3; in this embodiment, the outer diameter of the column end plate 2 is the same as the outer diameter of the base plate 3; a plurality of ribs 41 are evenly spaced and fixed on the outer wall of the intermediate column 4, and the bottom of the ribs 41 is welded to the base plate 3;

[0038] An azimuth flange 5 is arranged on the top of the middle column 4; specifically, the azimuth flange 5 is sleeved on the top of the middle column 4, and a slot 51 corresponding to the rib 41 is opened on the inner wall of the azimuth flange 5;

[0039] The heliostat body 6 is fixed to the top of the azimuth flange 5; specifically, a connecting flange 61 corresponding to the azimuth flange 5 is fixed to the bottom of the heliostat body 6, and a bolt 7 is passed through the azimuth flange 5 and the connecting flange 61 and then threadedly connected to a nut, thereby fixing the heliostat body 6 to the top of the azimuth flange 5. Here, it is not difficult to understand that bolt holes 52 corresponding to the bolts 7 are opened on the connecting flange 61 and the azimuth flange 5.

[0040] During the construction process, if it is found that the accuracy of the azimuth and horizontality of the top of the heliostat column body 1 after installation does not meet the design and specification requirements, the accuracy deviation is measured and remeasured. Mark the azimuth error on the side of the column end plate 2 fixed to the top of the column body 1, and measure and mark the azimuth error on the side of the base plate 3 accordingly. Place the base plate 3 on the top of the column end plate 2, adjust the side mark of the base plate 3 to coincide with the side mark of the column end plate 2, and fix the base plate 3 and the column end plate 2 by spot welding. Align the slot 51 of the azimuth flange 5 with the rib 41 on the middle column 4, install the azimuth flange 5 on the middle column 4, use an electronic level to adjust the horizontality of the azimuth flange 5 to meet the design and specification requirements, and spot weld the middle column 4 to the azimuth flange 5. Then, the gap between the base plate 3 and the column end plate 2, and the gap between the middle column 4 and the azimuth flange 5 are fully welded. After welding, the part of the middle column 4 that exceeds the top of the azimuth flange 5 is polished and smoothed to complete the deviation correction.

[0041] When installing the heliostat body 6 , the bolts 7 are passed through the azimuth flange 5 and the connecting flange 61 and then threadedly connected with nuts, so that the heliostat body 6 can be fixed on the top of the azimuth flange 5 .

[0042] In this embodiment, the base plate 3, the rib plate 41, the middle column 4 and the azimuth flange 5 are all made of 20 mm thick Q235C steel. The connection between the rib plate 41 and the base plate 3 is enlarged to increase the force, and the size of the slot 51 of the azimuth flange 5 is 2 mm larger than the upper size of the rib plate 41 to facilitate the installation of the azimuth flange 5 on the middle column 4.

[0043] The base plate 3, the rib plate 41, the middle column 4 and the azimuth flange 5 are all processed in the factory, and the base plate 3, the rib plate 41 and the middle column 4 are assembled and welded. Figure 2 and Figure 3 As shown. Azimuth flange 5 is installed and welded on the construction site. All welds are welded with continuous double-sided fillet welds, the weld leg size Hf = 6mm, and the weld grade requirement is level 1. After the device is installed and the weld is tested and qualified, the heliostat can be installed.

[0044] The foregoing description of specific exemplary embodiments of the utility model is for the purpose of illustration and illustration. These descriptions are not intended to limit the utility model to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the utility model and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the utility model and various different options and changes. The scope of the utility model is intended to be defined by the claims and their equivalents.

Claims

1. A precision deviation correction device for the top of a precast concrete column of a heliostat, characterized in that: include: Column body; A column end plate fixed to the top of the column body; A base plate is arranged on the top of the column end plate, and an intermediate column is fixed at the center position of the top of the base plate; An azimuth flange disposed on the top of the intermediate column; A heliostat body fixed to the top of the azimuth flange; wherein, The outer wall of the middle column is evenly spaced and fixed with a plurality of ribs, and the bottom of the ribs is welded with the base plate; The azimuth flange is sleeved on the top of the middle column and has a slot corresponding to the rib plate on its inner wall; A connecting flange corresponding to the azimuth flange is fixed at the bottom of the heliostat body, and a nut is threadedly connected by a bolt penetrating the azimuth flange and the connecting flange, thereby fixing the heliostat body on the top of the azimuth flange.

2. The precision deviation correction device for the top of the precast concrete column of the heliostat according to claim 1 is characterized in that: The outer diameter of the column end plate is the same as the outer diameter of the base plate.

3. The precision deviation correction device for the top of the precast concrete column of the heliostat according to claim 1 is characterized in that: The connecting flange and the azimuth flange are provided with bolt holes corresponding to the bolts.

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