阅读说明：本技术 一种光伏支架立柱与预应力管桩连接系统及其工作方法 (Photovoltaic support stand column and prestressed pipe pile connecting system and working method thereof ) 是由 邓明基 张立英 高建辉 郭辰 张庆 张国 于 2021-10-27 设计创作，主要内容包括：本发明公开了一种光伏支架立柱与预应力管桩连接系统及其工作方法,属于光伏发电技术领域,通过在光伏支架立柱上预先焊接定位法兰盘,并通过水平测量,选择通过不同型号的调位托板钢筋,将预应力管桩顶部相对较低的高程垫高来实现满足安装的桩顶水平度要求,再进行立柱在管桩内部调整位置,满足水平度要求,实现立柱与预应力管桩的初步定位,并将调位托板钢筋、预应力管桩顶部短板、定位法兰进行点焊或建筑胶粘结初步定位,然后将细石混凝土通过定位法兰顶部预留孔灌入,最终实现光伏支架立柱与管桩的固定。系统的安装效率高、安装精度高,连接质量高。能够根据不同支架设计方案进行调整,方便灵活,节省了人力成本,节约了时间。(The invention discloses a photovoltaic support stand column and prestressed pipe pile connecting system and a working method thereof, and belongs to the technical field of photovoltaic power generation. The system has high installation efficiency, high installation precision and high connection quality. Can adjust according to different support design, convenient nimble, save the human cost, save the time.)

1. A photovoltaic support upright post and prestressed pipe pile connecting system is characterized by comprising a photovoltaic support upright post (1), a positioning flange plate (2), a positioning support plate (3) and a prestressed pipe pile (4);

the positioning flange (2) is of a hollow structure, the positioning flange (2) is sleeved on the photovoltaic support stand column (1), the photovoltaic support stand column (1) is installed in the prestressed tubular pile (4) and penetrates through the top surface of the prestressed tubular pile (4), and the photovoltaic support stand column (1) and the prestressed tubular pile (4) are coaxial;

the positioning supporting plate (3) is arranged at the top of the prestressed pipe pile (4);

the positioning flange plate (2) comprises a hollow bottom plate (2-3), and a reserved hole channel (2-2) is formed in the bottom plate (2-3);

the prestressed pipe piles (4) are filled with fine aggregate concrete (5).

2. The photovoltaic bracket column and prestressed pipe pile connecting system according to claim 1, wherein the positioning support plate (3) comprises a horizontally arranged support plate (3-2) and a positioning support plate steel bar (3-1) vertically arranged on the support plate (3-2).

3. The photovoltaic support column and prestressed pipe pile connecting system according to claim 1, wherein the diameter of the positioning support plate steel bar (3-1) is 8-32 mm, and the adjustable height is 24 mm.

4. The photovoltaic bracket upright post and prestressed pipe pile connecting system according to claim 1, wherein a plurality of reserved hole channels (2-2) are provided, including a feeding hole and an exhaust hole;

and a flange plate stiffening rib (2-1) is arranged between the adjacent reserved channels (2-2).

5. The photovoltaic support column and prestressed pipe pile connection system according to claim 1, wherein the diameter of the preformed hole (2-2) is 30 mm.

6. The photovoltaic support column and prestressed pipe pile connection system according to claim 2, wherein the inner diameter of the bottom plate (2-3) is larger than the diameter of the photovoltaic support column (1);

the bottom of the bottom plate (2-3) is welded with a steel pipe, and the diameter of the steel pipe is smaller than that of the photovoltaic support stand column (1).

7. The photovoltaic support column and prestressed pipe pile connection system according to claim 1, wherein the fine stone concrete (5) satisfies a maximum grain size of less than 16 mm.

8. The photovoltaic support column and prestressed pipe pile connecting system according to claim 1, wherein the inner diameter of the prestressed pipe pile (4) is more than 35mm larger than the outer diameter of the photovoltaic support column (1).

9. A working method of a photovoltaic support upright post and prestressed pipe pile connecting system is characterized by comprising the following steps:

the positioning flange plate (2) is welded on the photovoltaic support upright post (1) in advance, and the height of a welding point at the photovoltaic support upright post (1) meets the requirement of the height of a square matrix, so that the height of the photovoltaic support upright post (1) meets the requirement of anchoring;

the positioning support plate (3) is placed into the prestressed pipe pile (4), the top elevation of the prestressed pipe pile (4) is adjusted, the photovoltaic support stand column (1) is inserted into the pipe pile, the horizontal position of the photovoltaic support stand column (1) in the prestressed pipe pile (4) is adjusted, and the positioning flange (2) and the top end plate of the prestressed pipe pile (4) are temporarily fixed through spot welding or building adhesive bonding;

a temporary template (6) is placed at the top of the prestressed pipe pile (4), a hole is formed in the top of the positioning flange plate (2) for pouring fine aggregate concrete (5), and finally the photovoltaic support upright post (1) is connected with the prestressed pipe pile (4).

10. The working method of the photovoltaic bracket upright post and prestressed pipe pile connecting system according to claim 9,

the height difference of the positioning support plate steel bars (3-1) is adjusted to be 2mm, steel gaskets with the same diameter as the top end plate of the prestressed tubular pile (4) are arranged, and the adjustment precision is within 1 mm;

and after the fine stone concrete (5) is poured, standing for 3 days under natural conditions, wherein the strength of the fine stone concrete (5) after solidification is not lower than C30.

Technical Field

The invention belongs to the technical field of photovoltaic power generation, and relates to a photovoltaic support stand column and prestressed pipe pile connecting system and a working method thereof.

Background

The photovoltaic support is an important supporting object of a photovoltaic power station, and along with the increasing popularization and application of large-size components, higher requirements are put forward on the height and span of the support in an agricultural light complementation project, more and more projects are adopted for adopting prestressed pipe piles, along with the progress of a pile foundation construction technology, the verticality, the horizontal position and the pile top height precision of a pile foundation are better and better, the horizontal error and the elevation error are within 30mm, and the beneficial use conditions are provided for adopting the pre-installed support and adopting a stand column to be inserted into the pipe pile for connection. At present, the photovoltaic project has large scale, short time, uneven technical level of installers and other adverse factors, the elevation adjustment on site is changed into factory production by welding a positioning flange on a photovoltaic support upright, and holes are formed in the upper part of a flange plate, so that the requirement of pouring fine aggregate concrete for connection is met.

Disclosure of Invention

In order to overcome the defects of large scale, short time and uneven technical level of installation workers in photovoltaic projects in the prior art, the invention aims to provide a photovoltaic support stand column and prestressed pipe pile connecting system and a working method thereof.

In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose:

a connecting system of a photovoltaic support stand column and a prestressed pipe pile comprises the photovoltaic support stand column, a positioning flange plate, a positioning support plate and the prestressed pipe pile;

the positioning flange is of a hollow structure and is sleeved on a photovoltaic support stand column, the photovoltaic support stand column is installed in the prestressed tubular pile and penetrates through the top surface of the prestressed tubular pile, and the photovoltaic support stand column and the prestressed tubular pile are coaxial;

the position adjusting supporting plate is arranged at the top of the prestressed pipe pile;

the positioning flange plate comprises a hollow bottom plate, and a reserved hole channel is formed in the bottom plate;

and fine stone concrete is filled in the prestressed pipe pile.

Preferably, the positioning support plate comprises a horizontally arranged support plate and a positioning support plate steel bar vertically arranged on the support plate.

Preferably, the diameter of the steel bar of the position-adjusting supporting plate is 8-32 mm, and the adjustable height is 24 mm.

Preferably, the reserved hole channels are provided with a plurality of hole channels, and each hole channel comprises a feeding hole and an exhaust hole;

and a flange plate stiffening rib is arranged between the adjacent reserved channels.

Preferably, the diameter of the preformed hole is 30 mm.

Preferably, the inner diameter of the bottom plate is larger than the diameter of the photovoltaic bracket upright;

the bottom of the bottom plate is welded with a steel pipe, and the diameter of the steel pipe is smaller than that of the photovoltaic support stand column.

Preferably, the fine stone concrete satisfies that the maximum grain size is less than 16 mm.

Preferably, the inner diameter of the prestressed pipe pile is more than 35mm larger than the outer diameter of the photovoltaic support upright post.

A working method of a photovoltaic support upright post and prestressed pipe pile connecting system comprises the following steps:

the positioning flange plate is welded on the photovoltaic support upright in advance, and the height of the welding point on the photovoltaic support upright meets the requirement of the height of the square matrix, so that the height of the photovoltaic support upright meets the anchoring requirement;

placing the positioning support plate into the prestressed pipe pile, adjusting the elevation of the top of the prestressed pipe pile, inserting the photovoltaic support stand column into the pipe pile, adjusting the horizontal position of the photovoltaic support stand column in the prestressed pipe pile, and temporarily fixing the positioning flange plate and the top end plate of the prestressed pipe pile through spot welding or building adhesive bonding;

and placing a temporary template at the top of the prestressed pipe pile, opening a hole at the top of the positioning flange plate to pour the fine stone concrete, and finally connecting the photovoltaic support stand column with the prestressed pipe pile.

Preferably, the height difference of the steel bars of the positioning support plate is adjusted to be 2mm, a steel gasket with the same diameter as that of the top end plate of the prestressed pipe pile is arranged, and the adjustment precision is within 1 mm;

and after the fine stone concrete is poured, standing for 3 days under natural conditions, wherein the strength of the fine stone concrete after solidification is not lower than C30.

Compared with the prior art, the invention has the following beneficial effects:

the invention discloses a photovoltaic panel support upright post and prestressed pipe pile connecting system, which is characterized in that a positioning flange plate is welded on a photovoltaic support upright post in advance, positioning support plate steel bars of different types are selected through horizontal measurement, the relatively lower elevation of the top of a prestressed pipe pile is heightened to meet the requirement of the levelness of the top of the installed pile, the position of the upright post in the pipe pile is adjusted to meet the requirement of the levelness, the initial positioning of the upright post and a prestressed pipe pile is realized, the positioning support plate steel bars, a short plate at the top of the prestressed pipe pile and a positioning flange are subjected to spot welding or building glue bonding initial positioning, fine stone concrete is poured in through a preformed hole at the top of the positioning flange, and the fixation of the photovoltaic support upright post and the pipe pile is finally realized.

Further, weld the locating flange dish in the mill in the photovoltaic support stand, the installation accuracy is high to anticorrosive treatment has been carried out.

Furthermore, the steel bars of the positioning support plate are welded on site, steel bars with the diameter of 8-32 mm are selected, the manufacturing is simple, measurement can be performed in advance, statistics can be performed, and the adjustment range is large.

Further, the internal diameter of the prestressed pipe pile is different from the diameter of the photovoltaic support column, the internal diameter of the prestressed pipe pile can be compared with the internal diameter of the prestressed pipe pile according to the design of the column diameter, when the requirement of the maximum gap is not met, the position of the welding flange can be adjusted when the support is designed, and the lower part of the welding flange is welded with steel pipes with smaller diameters or 3 steel bars with 25mm diameters, so that the device is convenient, flexible and strong in operability.

Furthermore, the height of the stand column is adjusted through horizontal measurement, the difficulty is low, the adjustment is performed by means of a steel gasket with the thickness of 1mm, the precision is improved to 1mm, the support is extremely favorable for stress, and the installation precision is greatly improved.

Furthermore, the fine aggregate concrete is self-compacting concrete and has the characteristic of early strength, so that the installation time of the bracket can be greatly prolonged.

Furthermore, the temporary template can be formed by mortar masonry, so that the construction difficulty is low, and convenience is brought to the operation.

According to the working method of the photovoltaic panel support upright post and prestressed pipe pile connecting system disclosed by the invention, the positioning flange is welded on the photovoltaic support upright post in advance, the positioning support plate steel bars with different types are selected through horizontal measurement, the relatively lower elevation padding height of the pile top of the prestressed pipe is realized to meet the requirement of the installed pile top levelness, the position of the upright post in the pipe pile is adjusted to meet the levelness requirement, the initial positioning of the upright post and the prestressed pipe pile is realized, the positioning support plate steel bars, the short plate at the top of the prestressed pipe pile and the positioning flange are subjected to spot welding or building adhesive bonding initial positioning, then fine aggregate concrete is poured in through the preformed hole at the top of the positioning flange, and finally the fixing of the photovoltaic support upright post and the pipe pile is realized. The system has high installation efficiency, high installation precision and high connection quality. Can adjust according to different support design, convenient nimble, save the human cost, save the time.

Drawings

FIG. 1 is an overall structural elevation view of a photovoltaic panel support column and pre-stressed pipe pile connection system of the present invention;

FIG. 2 is a front view of a photovoltaic support column with a pre-welded locating flange of the present invention;

FIG. 3 is a front view of the locating flange of the present invention;

FIG. 4 is a top view of the locating flange of the present invention;

FIG. 5 is a front view of the positioning pallet of the present invention;

in the figure: 1-photovoltaic support columns; 2-positioning a flange plate; 2-1-flange plate stiffening rib; 2-2-reserving a pore channel; 2-3-a bottom plate; 3-positioning a supporting plate; 3-1-positioning the supporting plate steel bars; 3-2-pallet; 4-prestressed pipe piles; 5-fine aggregate concrete.

Detailed Description

The invention is described in further detail below with reference to the accompanying drawings:

example 1

A photovoltaic support upright post and prestressed pipe pile connecting system comprises a photovoltaic support upright post 1, a positioning flange 2, a positioning support plate 3 and a prestressed pipe pile 4; the positioning flange 2 is of a hollow structure, the positioning flange 2 is sleeved on the photovoltaic support stand column 1, the photovoltaic support stand column 1 is installed in the prestressed tubular pile 4 and penetrates through the top surface of the prestressed tubular pile 4, and the photovoltaic support stand column 1 and the prestressed tubular pile 4 are coaxial; the positioning support plate 3 is arranged at the top of the prestressed pipe pile 4; the positioning flange 2 comprises a hollow bottom plate 2-3, and a reserved hole 2-2 is formed in the bottom plate 2-3; the prestressed pipe pile 4 is filled with fine stone concrete 5.

Example 2

A photovoltaic support upright post and prestressed pipe pile connecting system comprises a photovoltaic support upright post 1, a positioning flange plate 2, a positioning support plate 3, a positioning support plate reinforcing steel bar 3-1, a prestressed pipe pile 4, fine stone concrete 5 and a temporary template, wherein the positioning flange plate 2 is welded on the photovoltaic support upright post 1, the positioning support plate 3 is placed in the prestressed pipe pile 4 as shown in figure 2, the top elevation of the prestressed pipe pile 4 is adjusted by adjusting the diameter of the positioning support plate reinforcing steel bar 3-1, the photovoltaic support upright post 1 is inserted into the prestressed pipe pile 4, the horizontal position of the photovoltaic support upright post 1 in the prestressed pipe pile 4 is adjusted, the positioning flange plate 2, the positioning support plate reinforcing steel bar 3-1 and the top end plate of the prestressed pipe pile 4 are temporarily fixed through spot welding or building adhesive bonding, the temporary template is placed at the top of the prestressed pipe pile 4, the fine stone concrete 5 is poured through an opening at the top of the positioning flange plate 2, and finally connecting the photovoltaic bracket upright post 1 with the prestressed pipe pile 4.

Example 3

The contents are the same as those of example 1 except for the following.

As shown in fig. 3 and 4, the positioning flange 2 comprises a hollow bottom plate 2-3, reserved holes 2-2 are formed in the bottom plate 2-3, flange stiffening ribs 2-1 are arranged between every two adjacent reserved holes 2-2, 6 reserved holes 2-2 are provided, the diameter of each reserved hole 2-2 is more than 30mm, feeding materials are carried out on 3 reserved holes 2-2, and the other 3 reserved holes 2-2 are used as exhaust holes.

As shown in FIG. 5, the positioning pallet 3 comprises a horizontally arranged pallet 3-2 and a positioning pallet steel bar 3-1 vertically arranged on the pallet 3-2.

Example 4

A photovoltaic panel support column and pre-stressed pipe pile connection system, as shown in fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, comprising: the device comprises photovoltaic support stand columns 1, a positioning flange 2, flange stiffening ribs 2-1, reserved holes 2-2, a bottom plate 2-3, a positioning support plate 3, positioning support plate steel bars 3-1, a support plate 3-2, prestressed pipe piles 4 and fine aggregate concrete 5; the positioning flange plate 2 is welded on the photovoltaic support stand column 1 in advance, through horizontal measurement, positioning support plate steel bars 3-1 of different models are selected, the pile top levelness requirement of installation is met by heightening the relatively lower elevation of the top of the prestressed pipe pile 4, then the photovoltaic support stand column 1 is adjusted in position inside the prestressed pipe pile 4 to meet the levelness requirement, preliminary positioning of the photovoltaic support stand column 1 and the prestressed pipe pile 4 is achieved, spot welding or building glue bonding is conducted on the positioning support plate steel bars 3-1, the top end plate of the prestressed pipe pile 4 and the positioning flange plate 2 to preliminarily position, then the fine aggregate concrete 5 is poured into the photovoltaic support stand column 1 through the reserved hole 2-2 in the top of the positioning flange plate 2, and finally fixing of the photovoltaic support stand column 1 and the prestressed pipe pile 4 is achieved.

Example 5

A working method of a photovoltaic support upright post and prestressed pipe pile connecting system comprises the following steps:

the positioning flange plate 2 is welded on the photovoltaic support upright post 1 in advance, and the height of a welding point on the photovoltaic support upright post 1 meets the requirement of the height of a square matrix, so that the height of the photovoltaic support upright post 1 meets the anchoring requirement;

placing the positioning support plate 3 into the prestressed pipe pile 4, adjusting the top elevation of the prestressed pipe pile 4, inserting the photovoltaic support stand column 1 into the prestressed pipe pile 4, adjusting the horizontal position of the photovoltaic support stand column 1 in the prestressed pipe pile 4, and temporarily fixing the positioning flange 2 and the top end plate of the prestressed pipe pile 4 by spot welding or building adhesive bonding;

a temporary template is placed at the top of the prestressed tubular pile 4, a hole is formed in the top of the positioning flange 2 to pour the fine aggregate concrete 5, and finally the photovoltaic support upright post 1 is connected with the prestressed tubular pile 4.

Adjusting the span of the height difference of the position-adjusting supporting plate steel bars 3-1 to 2mm, arranging steel gaskets with the same diameter as the top end plate of the prestressed tubular pile 4, and adjusting the precision to within 1 mm;

and after the fine stone concrete 5 is poured, standing for 3 days under natural conditions, wherein the strength of the fine stone concrete 5 after solidification is not lower than C30.

The photovoltaic bracket preassembling platform system disclosed by the invention is in operation:

the positioning flange 2 is welded on the photovoltaic support upright post 1 in advance, so that the positioning flange 2 and the photovoltaic support upright post 1 are accurately positioned; determining the elevation difference of each pile head position through pile top horizontal measurement, selecting the combination of steel gaskets with the height of 1mm through different diameters of the positioning supporting plate steel bars 3-1, and finally controlling the elevation difference of the pile heads within 1 mm; preliminarily inserting the stand column into a prestressed pipe pile 4 filled with fine aggregate concrete 5, measuring the horizontal position, and adjusting the photovoltaic support stand column 1 to a straight line required by installation; and spot welding or building glue bonding is carried out on the positioning support plate steel bars 3-1, the top end plate of the prestressed pipe pile 4 and the positioning flange 2 in a spot welding or building glue bonding mode for primary positioning. By selecting concrete or other prefabricated wooden annular temporary templates 6, the height of the temporary templates exceeds the height of the hole at the top of the pile head and the bottom of the positioning flange plate, the fine stone concrete 5 is shaped and prevented from leaking slurry, and the fine stone concrete 5 is poured into the holes 2-2 reserved at the top of the positioning flange plate, so that the photovoltaic support upright 1 and the prestressed tubular pile 4 are fixed finally.

In conclusion, the photovoltaic support stand column and prestressed pipe pile connection and working method thereof provided by the invention can meet the requirement of convenient and quick connection of the support and the stand column, perform concrete pouring, realize high installation efficiency, high automation degree, high installation precision and good quality, save labor cost, ensure working quality, adjust according to different support design schemes, are convenient and flexible, save labor cost and save time.

The above-mentioned contents are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modification made on the basis of the technical idea of the present invention falls within the protection scope of the claims of the present invention.