Fabricated transition section and wind power generation tower

Abstract

The utility model discloses an assembly type transition section and a wind power generation tower, the wind power generation tower comprises the assembly type transition section, and the assembly type transition section comprises a main cylinder body, lattice type corner columns and connecting components. The main cylinder body is a cylindrical steel cylinder. The multiple lattice type corner columns are evenly arranged around the central axis of the main cylinder body in the circumferential direction at intervals. The height of the connecting components is smaller than that of the main cylinder body, and each lattice type corner column is connected with the side wall of the main cylinder body through one connecting component. The height of the cross section of the connecting component is gradually reduced from the main cylinder body to the lattice type corner column, and the gradually-reduced structure is convenient to connect with the lattice type corner column. The device has the characteristics of reasonable structural design, high stability, prefabricated construction and simplicity and convenience in installation and operation.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power generation equipment, in particular to an assembled transition section and a wind power tower. Background Technique

[0002] The prestressed concrete-filled steel tubular lattice tower is an important component of wind power generation equipment, mainly including a steel cylinder, an assembled transition section and a concrete foundation. The generator set is connected to the top of the steel cylinder, the concrete foundation is fixed on the ground, and the steel cylinder is connected to the concrete foundation through the assembled transition section. During use, the stability of the assembled transition section directly affects the structural stability of the entire prestressed concrete-filled steel tubular lattice tower.

[0003] For the existing prestressed assembled transition section, due to the reason of structural design, its transition section has a complex structure, excessive weight and poor stability. Content of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the technical problem to be solved by the utility model is to provide an assembled transition section and a wind power tower, which have the characteristics of reasonable structural design, high stability, assembled construction and simple installation operation.

[0005] In order to achieve the above purpose, the utility model is realized by the following technical solutions: An assembled transition section, comprising:

[0006] A main cylinder, which is a cylindrical steel cylinder;

[0007] Lattice angle columns, there are multiple of them, and the multiple lattice angle columns are circumferentially and evenly spaced around the central axis of the main cylinder; and

[0008] A connecting member, the height of the connecting member is less than the height of the main cylinder, each lattice angle column is connected to the side wall of the main cylinder through a connecting member, and the height of the cross-section of the connecting member gradually decreases from the main cylinder to the lattice angle column.

[0009] Further, the lattice angle column includes a central cylinder, an outer sleeve cylinder and a connecting plate, the outer sleeve cylinder is sleeved outside the central cylinder, there are multiple connecting plates, and the multiple connecting plates are circumferentially spaced and connected between the central cylinder and the outer sleeve cylinder.

[0010] Further, the lattice angle column further includes angle column ring ribs, there are two angle column ring ribs, and the two angle column ring ribs are sleeved and fixed at the upper and lower ends of the outer sleeve cylinder, and the connecting member is connected to the two angle column ring ribs.

[0011] Further, a plurality of stiffening plates are circumferentially spaced on the outer walls of the upper and lower ends of the main cylinder.

[0012] Further, the cross-section of the connecting member is in the shape of an I-beam.

[0013] Further, there are four lattice-type corner columns.

[0014] Advantages of the present utility model:

[0015] The above-mentioned prefabricated transition section and wind power tower. The prefabricated transition section includes a main cylinder, lattice-type corner columns and connecting members. The main cylinder is a cylindrical steel barrel. There are multiple lattice-type corner columns, and the multiple lattice-type corner columns are circumferentially and evenly spaced around the central axis of the main cylinder. The height of the connecting member is less than the height of the main cylinder, and each lattice-type corner column is connected to the side wall of the main cylinder through a connecting member. The height of the cross-section of the connecting member gradually decreases from the main cylinder to the lattice-type corner column, and this gradually decreasing structure facilitates the connection with the lattice-type corner column. The wind power tower includes a prefabricated transition section, a steel barrel and a concrete foundation. The generator set is connected to the top of the steel barrel, the concrete foundation is fixed on the ground, and the steel barrel is connected to the concrete foundation through the prefabricated transition section.

[0016] During use, connect the present prefabricated transition section between the steel barrel and the concrete foundation. The four lattice-type corner columns can play an auxiliary supporting role, thereby improving the stability of the entire tower. In addition, the entire transition section has a simple structure, is easy to install and operate, saves costs, and can shorten the installation period. Description of the drawings

[0017] In order to more clearly illustrate the specific implementation manners of the present utility model, the drawings required for the specific implementation manners will be briefly introduced below. In all the drawings, the elements or parts do not necessarily draw according to the actual scale.

[0018] Figure 1 Schematic diagram of a prefabricated transition section provided by an embodiment of the present utility model;

[0019] Figure 2 For Figure 1 Schematic diagram at position A in

[0020] Reference signs:

[0021] 100, main cylinder; 110, stiffening plate; 200, lattice-type corner column; 210, central cylinder; 220, outer sleeve cylinder; 230, connecting plate; 240, corner column ring rib; 300, connecting member. Specific implementation manners

[0022] The embodiments of the technical solution of the present utility model will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present utility model, so they are only examples and cannot be used to limit the protection scope of the present utility model.

[0023] Please refer to Figures 1 to 2 , the present utility model provides an assembled transition section, which includes a main cylinder 100, a lattice angle column 200, and a connecting member 300.

[0024] Specifically, the main cylinder 100 is a cylindrical steel cylinder. There are multiple lattice angle columns 200, and the multiple lattice angle columns 200 are circumferentially and evenly spaced around the central axis of the main cylinder 100. In a specific implementation, the number of lattice angle columns 200 can be four, and the four lattice angle columns 200 can improve the stability of the entire transition section.

[0025] The height of the connecting member 300 is less than the height of the main cylinder 100, and each lattice angle column 200 is connected to the side wall of the main cylinder 100 through a connecting member 300. The height of the cross-section of the connecting member 300 gradually decreases from the main cylinder 100 to the lattice angle column 200, and this gradually decreasing structure is convenient for connecting with the lattice angle column 200.

[0026] When in use, the assembled transition section is connected between the steel cylinder and the concrete foundation. The four lattice angle columns 200 can play an auxiliary supporting role, thereby improving the stability of the entire tower. In addition, the entire transition section has a simple structure, is easy to install and operate, saves costs, and can shorten the installation period.

[0027] Specifically, the lattice angle column 200 includes a central cylinder 210, an outer sleeve cylinder 220, and a connecting plate 230. The outer sleeve cylinder 220 is sleeved outside the central cylinder 210. There are multiple connecting plates 230, and the multiple connecting plates 230 are circumferentially spaced and connected between the central cylinder 210 and the outer sleeve cylinder 220. With this structure, through the connection of the connecting plates 230, the strength of the entire lattice angle column 200 can be ensured, and at the same time, the weight of the entire lattice angle column 200 can be reduced.

[0028] As a preferred implementation manner, the lattice angle column 200 further includes angle column ring ribs 240. There are two angle column ring ribs 240, and the two angle column ring ribs 240 are sleeved and fixed at the upper and lower ends of the outer sleeve cylinder 220. The connecting member 300 is connected to the two angle column ring ribs 240. By adopting the connection mode of the connecting member 300 and the angle column ring ribs 240, the force on the entire lattice angle column 200 can be made uniform.

[0029] As another preferred embodiment, a plurality of stiffening plates 110 are circumferentially spaced on the outer walls at the upper and lower ends of the main cylinder 100. The stiffening plates 110 can prevent local buckling of the main cylinder 100 during use.

[0030] In addition, in this embodiment, the cross-section of the connecting member 300 is in the shape of an I-beam. The I-beam shape can improve the stiffness and strength of the entire connecting member 300. In specific implementation, the welding connection method between the connecting member 300 and the main cylinder 100 and the corner column can be welding fixation. Of course, it can also be other dry connection methods, such as bolt connection.

[0031] The adoption of the prefabricated transition section has the following advantages:

[0032] 1. A number of stiffening plates 110 arranged around the main cylinder 100 can prevent local buckling of the main cylinder 100;

[0033] 2. The lattice-type corner columns 200 are located at the four corners of the transition section and can play a role in stable support;

[0034] 3. Two circles of corner column ring ribs 240 are arranged on each lattice-type corner column and connected to the connecting member 300, which can improve the support stability of the entire main cylinder 100;

[0035] 4. The cross-section of the connecting member 300 between the main cylinder 100 and the lattice-type corner column 200 is in the shape of an I-beam, which can improve the stiffness and strength of the connecting member 300 and prevent the connecting member 300 from being bent under force.

[0036] In addition, the present utility model also provides a wind power tower, including the above-mentioned prefabricated transition section, and further including a steel cylinder and a concrete foundation. The generator set is connected to the top of the steel cylinder, the concrete foundation is fixed on the ground, and the steel cylinder is connected to the concrete foundation through the prefabricated transition section.

[0037] For the wind power tower adopting the above-mentioned prefabricated transition section, the stability of the entire wind power tower is greatly improved.

[0038] The above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present utility model, and they should all be covered by the scope of the claims and the description of the present utility model.

Claims

1. An assembled transition section, characterized in that, Comprising: A main cylinder body, which is a cylindrical steel cylinder; Lattice type corner columns, there are multiple of them, and the multiple lattice type corner columns are circumferentially and evenly spaced around the central axis of the main cylinder body; And Connecting members, the height of the connecting members is less than the height of the main cylinder body, each lattice type corner column is connected to the side wall of the main cylinder body through one of the connecting members, and the height of the cross-section of the connecting member gradually decreases from the main cylinder body to the lattice type corner column; The lattice type corner column includes a central cylinder, an outer sleeve cylinder and connecting plates, the outer sleeve cylinder is sleeved outside the central cylinder, there are multiple of the connecting plates, and the multiple connecting plates are connected between the central cylinder and the outer sleeve cylinder at intervals along the circumference of the central cylinder.

2. The fabricated transition section according to claim 1, wherein The lattice type corner column further includes corner column ring ribs, there are two of the corner column ring ribs, and the two corner column ring ribs are sleeved and fixed at the upper and lower ends of the outer sleeve cylinder, and the connecting member is connected to the two corner column ring ribs.

3. The prefabricated transition section according to claim 1, wherein A plurality of stiffening plates are circumferentially spaced on the outer walls at the upper and lower ends of the main cylinder body.

4. The prefabricated transition section according to claim 1, characterized in that, The cross-section of the connecting member is in the shape of an I.

5. The fabricated transition section according to claim 1, characterized in that, There are four lattice type corner columns.

6. A wind power tower, characterized in that, Comprising the prefabricated transition section according to any one of claims 1-5, further comprising a steel cylinder and a concrete foundation, a generator set is connected to the top of the steel cylinder, the concrete foundation is fixed on the ground, and the steel cylinder is connected to the concrete foundation through the prefabricated transition section.

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