Installation method of rectangular tube wind power tower

Abstract

A method for installing a wind power tower containing a rectangular tube, characterized in that it includes the following steps: (1) making a honeycomb columnar force-bearing structure, firstly processing a columnar pad tube of a corresponding height according to the height of the inner opening of the rectangular tube body, processing the upper plate and the lower plate of the columnar pad tube according to the distribution of the rectangular tube bolt holes on the rectangular tube body, opening holes in the upper plate and the lower plate, installing the columnar pad tube into the holes in the upper plate and the lower plate to form a honeycomb structure, and then installing the honeycomb columnar force-bearing structure into the inside of an opening at one end of the rectangular tube body through connecting bolts to form a rectangular tube; (2) connecting four The supporting circular tube is installed on the ground, and the supporting units of each layer of the connecting structure are installed. One end of the two oblique tubes and two horizontal tubes is installed on the supporting circular tube, and the other end of the two oblique tubes and two horizontal tubes is installed on the connecting plate through fixing bolts; one end of the two rectangular tubes is fixed to the supporting circular tube, and then the fixing bolts are respectively passed through the fixing plate 1, the rectangular tube 1, the connecting plate, the rectangular tube 2, and the fixing plate 2 to connect; (3) The supporting units of each layer of the connecting structure are connected to each other, and the adjacent fixing plates 2 are connected by connecting tubes, and the opposite fixing plates 2 are connected by tie rods.

Description

Technical Field

[0001] The invention belongs to the technical field of wind power towers, and in particular relates to a rectangular tube, a wind power tower containing the rectangular tube, and an installation method thereof. Background Art

[0002] With the increase of wind power projects in my country, some wind farms with good wind resources have been gradually developed. In order to make better use of wind resources at higher altitudes, wind power towers are gradually developing towards high towers. Theoretical research has shown that when the height of a wind power tower exceeds 100 meters, the structural advantages of the combination of lattice towers and tower barrels are prominent. This structural form can greatly save materials, solve problems such as expensive transportation costs, and thus save engineering costs. However, due to the fatigue problem of wind power tower structures, for welded structures, the fatigue allowable stress amplitude is low and the material utilization rate is low.

[0003] With the development of tall steel structures and wind power towers, frame-type steel structure towers are used to improve the utilization rate of lower materials and overall stiffness in order to address the problem of significant fatigue effects on tall steel structures, especially wind power towers, under wind loads and mechanical operation. However, the fatigue problem of steel structures has become a limiting condition for the full utilization of structural materials.

[0004] In the prior art, the frame-type steel structure tower is connected by rectangular tubes. However, when the top plate of the rectangular tube is subjected to tension and lateral pressure, it deforms greatly and has low pressure resistance. It cannot be used as a node for bolt shear force. This problem is urgently needed. Summary of the invention

[0005] In order to solve the above problems, the present invention decides to develop a rectangular tube, a wind power tower containing the rectangular tube and an installation method thereof.

[0006] A rectangular tube comprises a rectangular tube body and a honeycomb columnar force-bearing structure, wherein a plurality of rectangular tube bolt holes are respectively arranged on the upper and lower sides of one end of the rectangular tube body, and a honeycomb columnar force-bearing structure is arranged inside one end of the rectangular tube, and the honeycomb columnar force-bearing structure comprises an upper plate, a lower plate, a side plate and a columnar pad tube, one side of the upper plate and the lower plate are respectively connected by the side plate and a plurality of columnar pad tubes are arranged between the upper plate and the lower plate, and upper plate holes and lower plate holes corresponding to the rectangular tube bolt holes on the upper and lower sides of the rectangular tube body are respectively arranged on the upper plate and the lower plate, and the two ends of the plurality of columnar pad tubes are respectively fixed to the corresponding upper plate holes and lower plate holes.

[0007] Furthermore, the side plate is provided with a connecting hole, and the honeycomb columnar force-bearing structure is installed inside the rectangular tube body through connecting bolts and the connecting hole.

[0008] Furthermore, the diameter of the rectangular tube bolt hole is 22-30 mm.

[0009] Furthermore, the diameter of the cylindrical gasket tube is 52-80 mm.

[0010] A wind power tower containing rectangular tubes includes four supporting circular tubes and several layers of connection structures. Each layer of the connection structure includes four supporting units, connecting tubes, and tie rods. The supporting units include rectangular tube 1, rectangular tube 2, oblique tubes, transverse tubes, connecting plates, fixed plate 1, and fixed plate 2. The oblique tubes and transverse tubes are respectively installed on the connecting plates and supporting circular tubes by fixing bolts. The fixing bolts respectively penetrate the fixed plate 1, rectangular tube 1, connecting plate, rectangular tube 2, and fixed plate 2 for connection; adjacent fixed plates 2 are connected by connecting tubes, and the opposite fixed plates 2 are connected by tie rods.

[0011] Furthermore, connecting pipe fixing plates are provided at both ends of the connecting pipe, and the connecting pipe is fixed to fixing plate 2 through the connecting pipe fixing plates.

[0012] A method for installing a wind power tower containing a rectangular tube, characterized by comprising the following steps:

[0013] (1) Making a honeycomb columnar stress-bearing structure, firstly, according to the height of the inner opening of the rectangular tube body, processing a columnar pad tube of a corresponding height, processing the upper plate and the lower plate of the columnar pad tube according to the distribution of the rectangular tube bolt holes on the rectangular tube body, opening holes in the upper plate and the lower plate, installing the columnar pad tube into the holes in the upper plate and the lower plate to form a honeycomb structure, and then installing the honeycomb columnar stress-bearing structure into the opening at one end of the rectangular tube body through connecting bolts to form a rectangular tube;

[0014] (2) Install four supporting circular tubes on the ground, install the supporting units of each layer of the connecting structure, install one end of the two oblique tubes and two horizontal tubes on the supporting circular tubes, and install the other ends of the two oblique tubes and two horizontal tubes on the connecting plate through fixing bolts; fix one end of the two rectangular tubes to the supporting circular tubes, and then respectively pass the fixing bolts through the fixing plate 1, rectangular tube 1, connecting plate, rectangular tube 2, and fixing plate 2 to connect;

[0015] (3) The supporting units of each layer of the connection structure are connected to each other, adjacent fixing plates are connected by connecting pipes, and opposite fixing plates are connected by tie rods.

[0016] The beneficial effects achieved by the present invention are as follows: the rectangular tube is used in the horizontal and oblique rod structure of the prestressed frame steel tube wind power tower, which solves the problem of large deformation of the rectangular tube when subjected to pressure; the rectangular tube in the prior art is subjected to shear force friction surface node structure, and the rectangular tube node is easy to deform under low pressure. By inventing this honeycomb columnar steel tube cushion column, the force structure of the rectangular tube is improved, and the original force of 500n / m can be improved to more than 500n / m to 5000n / m. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a structural schematic diagram of a honeycomb columnar stress-bearing structure;

[0018] Figure 2 It is a schematic diagram of the structure of a rectangular tube;

[0019] Figure 3 It is the front view of the wind power tower with rectangular tubes;

[0020] Figure 4 It is a partial enlarged view of the wind power tower A containing a rectangular tube;

[0021] Figure 5 Exploded view of rectangular tube installation;

[0022] Figure 6 A top view of a wind power tower connection structure including a rectangular tube;

[0023] Figure 7 It is a partial enlarged view of the connection structure B of the wind power tower containing a rectangular tube;

[0024] Figure 8 is a top view of the connecting plate;

[0025] The accompanying drawings in the figure are marked as follows:

[0026] 1 rectangular tube body, 2 upper plate, 3 lower plate, 4 side plate, 5 connecting bolts, 6 columnar gasket, 7 rectangular tube bolt holes, 8 supporting round tubes, 9 rectangular tubes, 10 inclined tubes, 11 horizontal tubes, 12 connecting tubes, 13 tie rods, 14 fixing plate 1, 15 connecting plate, 16 fixing holes, 17 fixing bolts, 18 connecting holes, 19 connecting tube fixing plate, 20 rectangular tube 1, 21 rectangular tube 2, 22 fixing plate 2, 23 upper plate holes, 24 supporting unit. DETAILED DESCRIPTION Example 1

[0027] like Figure 1-8 A rectangular tube comprises a rectangular tube body 1 and a honeycomb columnar force-bearing structure, wherein a plurality of rectangular tube bolt holes 7 are respectively arranged on the upper and lower sides of one end of the rectangular tube body 1, and a honeycomb columnar force-bearing structure is arranged inside one end of the rectangular tube body 1, and the honeycomb columnar force-bearing structure comprises an upper plate 2, a lower plate 3, a side plate 4 and a columnar pad tube 6, and one side of the upper plate 2 and the lower plate 3 are respectively connected by the side plate 4 and a plurality of columnar pad tubes 6 are arranged between the upper plate 2 and the lower plate 3, and upper plate holes 23 and lower plate holes corresponding to the rectangular tube bolt holes 7 on the upper and lower sides of the rectangular tube body 1 are respectively arranged on the upper plate 2 and the lower plate 3, and the two ends of the plurality of columnar pad tubes 6 are respectively fixed to the corresponding upper plate holes 23 and lower plate holes.

[0028] The diameter of the rectangular tube bolt hole is 22 mm, and the diameter of the cylindrical gasket tube is 52 mm.

[0029] The side plate 4 is provided with a connecting hole 18 , and the honeycomb columnar force-bearing structure is installed inside the rectangular tube body 1 through the connecting bolts 5 and the connecting hole 18 .

[0030] A wind power tower containing rectangular tubes, comprising four supporting circular tubes 8 and several layers of connection structures, wherein each layer of the connection structure comprises four supporting units 24, connecting tubes 12, and tie bars 13, wherein the supporting units 24 comprise rectangular tube 1 20, rectangular tube 2 21, inclined tube 10, transverse tube 11, connecting plate 15, fixing plate 14, and fixing plate 22, wherein the inclined tube 10 and transverse tube 11 are respectively mounted on the connecting plate 15 and the supporting circular tubes 8 by fixing bolts 17, wherein the fixing bolts 17 respectively penetrate the fixing plate 14, rectangular tube 1 20, connecting plate 15, rectangular tube 21, and fixing plate 22 for connection; adjacent fixing plates 22 are connected by connecting tubes 12, and opposite fixing plates 22 are connected by tie bars 13.

[0031] Connecting pipe fixing plates 19 are provided at both ends of the connecting pipe 12 , and the connecting pipe 12 is fixed to a second fixing plate 22 through the connecting pipe fixing plates 19 .

[0032] A method for installing a wind power tower containing a rectangular tube, characterized by comprising the following steps:

[0033] (1) Making a honeycomb columnar force-bearing structure, firstly, according to the height of the inner opening of the rectangular tube body 1, a columnar gasket tube 6 of a corresponding height is processed, and according to the distribution of the rectangular tube bolt holes 7 on the rectangular tube body 1, the upper plate 2 and the lower plate 3 of the columnar gasket tube are processed, and holes are opened in the upper plate 2 and the lower plate 3, and the columnar gasket tube 6 is installed in the upper plate hole 23 and the lower plate hole to form a honeycomb structure, and then the honeycomb columnar force-bearing structure is installed in the opening of one end of the rectangular tube body 1 through the connecting bolts 5 to form a rectangular tube;

[0034] (2) Install four supporting circular tubes 8 on the ground, install the supporting units 24 of each layer of the connecting structure, install one end of the two oblique tubes 10 and the two horizontal tubes 11 on the supporting circular tubes 8, and install the other ends of the two oblique tubes 10 and the two horizontal tubes 11 on the connecting plate 15 through fixing bolts; fix one end of the two rectangular tubes to the supporting circular tube 8, and then respectively penetrate the fixing plate 14, the rectangular tube 1 20, the connecting plate 15, the rectangular tube 2 21, and the fixing plate 2 22 for connection;

[0035] (3) The supporting units 24 of each layer of the connection structure are connected to each other, the adjacent second fixing plates 22 are connected by the connecting pipes 12, and the opposite second fixing plates 22 are connected by the tie bars 13. Example 2

[0036] like Figure 1-8A rectangular tube comprises a rectangular tube body 1 and a honeycomb columnar force-bearing structure, wherein a plurality of rectangular tube bolt holes 7 are respectively arranged on the upper and lower sides of one end of the rectangular tube body 1, and a honeycomb columnar force-bearing structure is arranged inside one end of the rectangular tube body 1, and the honeycomb columnar force-bearing structure comprises an upper plate 2, a lower plate 3, a side plate 4 and a columnar pad tube 6, and one side of the upper plate 2 and the lower plate 3 are respectively connected by the side plate 4 and a plurality of columnar pad tubes 6 are arranged between the upper plate 2 and the lower plate 3, and upper plate holes 23 and lower plate holes corresponding to the rectangular tube bolt holes 7 on the upper and lower sides of the rectangular tube body 1 are respectively arranged on the upper plate 2 and the lower plate 3, and the two ends of the plurality of columnar pad tubes 6 are respectively fixed to the corresponding upper plate holes 23 and lower plate holes.

[0037] The diameter of the rectangular tube bolt hole is 30 mm, and the diameter of the cylindrical gasket tube is 80 mm.

[0038] The rest is the same as Example 1.

Claims

1. A method for installing a rectangular tube wind power tower, the rectangular tube wind power tower comprising four supporting circular tubes and several layers of connecting structures, each layer of connecting structures comprising four supporting units, connecting tubes and braces, the supporting units comprising rectangular tube 1, rectangular tube 2, oblique tube, transverse tube, connecting plate, fixing plate 1 and fixing plate 2, the oblique tube and transverse tube being respectively installed on the connecting plate and the supporting circular tube by fixing bolts, the fixing bolts respectively penetrate the fixing plate 1, rectangular tube 1, connecting plate, rectangular tube 2 and fixing plate 2 for connection; adjacent fixing plates 2 are connected by connecting tubes, and the opposite fixing plates 2 are connected by braces; the rectangular tube comprises A rectangular tube body and a honeycomb columnar force-bearing structure, wherein a plurality of rectangular tube bolt holes are respectively arranged on the upper and lower sides of one end of the rectangular tube body, and a honeycomb columnar force-bearing structure is arranged inside one end of the rectangular tube, and the honeycomb columnar force-bearing structure comprises an upper plate, a lower plate, a side plate and a columnar pad tube, and one side of the upper plate and the lower plate are respectively connected by the side plate and a plurality of columnar pad tubes are arranged between the upper plate and the lower plate, and upper plate holes and lower plate holes corresponding to the rectangular tube bolt holes on the upper and lower sides of the rectangular tube body are respectively arranged on the upper plate and the lower plate, and the two ends of the plurality of columnar pad tubes are respectively fixed to the corresponding upper plate holes and lower plate holes; it is characterized in that The following steps are involved: (1) Making a honeycomb columnar stress-bearing structure, firstly, according to the height of the inner opening of the rectangular tube body, processing a columnar pad tube of a corresponding height, processing the upper plate and the lower plate of the columnar pad tube according to the distribution of the rectangular tube bolt holes on the rectangular tube body, opening holes in the upper plate and the lower plate, installing the columnar pad tube into the holes in the upper plate and the lower plate to form a honeycomb structure, and then installing the honeycomb columnar stress-bearing structure into the opening at one end of the rectangular tube body through connecting bolts to form a rectangular tube; (2) Install four supporting circular tubes on the ground, install the supporting units of each layer of the connecting structure, install one end of the two oblique tubes and two horizontal tubes on the supporting circular tubes, and install the other ends of the two oblique tubes and two horizontal tubes on the connecting plate through fixing bolts; fix one end of the two rectangular tubes to the supporting circular tubes, and then respectively pass the fixing bolts through the fixing plate 1, rectangular tube 1, connecting plate, rectangular tube 2, and fixing plate 2 to connect; (3) The supporting units of each layer of the connecting structure are connected to each other, adjacent fixing plates are connected by connecting pipes, and opposite fixing plates are connected by tie rods.

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