Installation method of tubular busbar for stepped concrete tower barrel

Abstract

The present invention belongs to the technical field of power transmission and distribution equipment, and particularly relates to an installation method for tubular busbars of a stepped concrete tower barrel. In the present invention, a tower barrel support platform is installed approximately every 30 meters along the height direction of the concrete tower barrel to bear the integral tubular busbar body of each layer. The support base is used to fix and lift the integral tubular busbar body, so that it is at a certain height relative to the tower barrel support platform to provide an installation space for the butt joint section of the tubular busbar body. The side support bracket connects the integral tubular busbar body with the ladder, which can reduce the swaying frequency of the integral tubular busbar and ensure the reliability of installation.

Description

Technical Field

[0001] The present invention belongs to the technical field of power transmission and distribution equipment, and particularly relates to a method for installing tubular busbars on a stepped concrete tower barrel.

Background Art

[0002] Currently, since the new onshore wind turbine models in the wind power field are mainly developing towards the low-wind-speed areas in the central and eastern regions of China, the wind turbines in these low-wind-speed areas require higher tower barrels, larger blades to capture better wind resources, and also require larger wind turbine capacities to achieve cost reduction. However, traditional steel tower barrels cannot meet these requirements because steel tower barrels are extremely prone to deformation and bending, and even tower collapse accidents after exceeding a height of 120 meters, and can no longer meet the requirements of wind turbine tower barrels with a height exceeding 140 meters in low-wind-speed areas. The height of concrete tower barrels can reach 230 meters. Concrete tower barrels not only meet these requirements, but also have better economy and technical stability.

[0003] There are various types of structures for concrete tower barrels. One type of concrete tower barrel with a stepped shape has stepped inner and outer walls. Therefore, it is difficult to directly install and lay the straight long-shaped integral tubular busbar body on the steel tower barrel wall before hoisting the steel tower barrel in the conventional hoisting method for steel tower barrels. For the stepped concrete tower barrel, it is necessary to first install the tower bottom platform and the bottommost tower barrel ring, then hoist the entire integral tubular busbar body to the bottom platform of the concrete tower barrel, and then hoist the remaining tower barrel rings. Finally, the internal hoisting of the integral tubular busbar body is carried out.

[0004] However, due to the large number and various shapes of internal components in the stepped concrete tower barrel, it is necessary to avoid important components such as lighting, ladder brackets, platforms, cables, and steel tendons inside the tower barrel at the same time. Therefore, the installation of the integral tubular busbar body is very difficult and has a relatively high risk.

Summary of the Invention

[0005] In order to solve the problem in the prior art that due to the large number and various shapes of internal components in the stepped concrete tower barrel and the need to avoid important components inside the tower barrel at the same time, the installation is very difficult. The present invention provides a method for installing tubular busbars on a stepped concrete tower barrel.

[0006] The present invention is realized through the following technical solutions:

[0007] A method for installing tubular busbars on a stepped concrete tower barrel includes the following steps:

[0008] S1: Dispose tower barrel support platforms for supporting the integral tubular busbar body at intervals in the vertical direction within the tower barrel ring;

[0009] S2: Install the support base on the tower barrel support platform and connect it through fasteners;

[0010] S3: Use the internal crane to hoist the integral tubular busbar body located on the bottom platform of the tower barrel ring onto the support base and connect it through fasteners;

[0011] S4: Install side support brackets for connecting the integral tubular busbar body and the ladder along the vertical direction of the ladder;

[0012] S5: Repeat steps S2 - S4 until the installation of the support base, the integral tubular busbar body, and the side support brackets on the remaining tower barrel support platforms is completed;

[0013] S6: Install the butt - section tubular busbar body between two adjacent integral tubular busbar bodies.

[0014] A method for installing a tubular busbar of a stepped concrete tower barrel as described above, wherein the tower barrel support platform is provided with a crane opening for the internal crane and the integral tubular busbar to pass through, and a ladder opening for the ladder to pass through.

[0015] A method for installing a tubular busbar of a stepped concrete tower barrel as described above, wherein the bottom of the tower barrel support platform is provided with reinforcing ribs, the reinforcing ribs are located at the bottom of the integral tubular busbar body, and both ends thereof are respectively connected to the inner wall of the tower barrel.

[0016] A method for installing a tubular busbar of a stepped concrete tower barrel as described above, wherein the support base includes a plurality of support frames for supporting the integral tubular busbar body, and support feet for keeping the support frames in an upright state.

[0017] A method for installing a tubular busbar of a stepped concrete tower barrel as described above, wherein the support frame includes two symmetrically arranged first legs, a fixing part arranged between the first legs and used for connecting the support feet, and a first installation part arranged at the bottom end of the first legs and used for connecting the tower barrel support platform, and the first installation part is connected to the tower barrel support platform through fasteners.

[0018] A method for installing a tubular busbar of a stepped concrete tower barrel as described above, wherein the support foot includes a second leg connected to the support frame, and a second installation part arranged at the bottom end of the second leg and used for connecting the tower barrel support platform, the second installation part is connected to the tower barrel support platform through fasteners, and a triangular structure is formed between the support foot and the support frame.

[0019] A method for installing tubular busbars of a stepped concrete tower barrel as described above. The side support bracket includes side support legs for connecting the main body of the integral tubular busbar, and locking members for connecting the side support legs. When the side support legs are connected to the locking members, the main body of the integral tubular busbar is connected to the ladder.

[0020] A method for installing tubular busbars of a stepped concrete tower barrel as described above. There is an interference fit between the side support bracket and the ladder, and they are connected by fixing members.

[0021] A method for installing tubular busbars of a stepped concrete tower barrel as described above further includes a cover for closing the crane opening, and a flange provided around the crane opening and extending upward. When the cover is sleeved with the flange, the crane opening is kept closed.

[0022] Compared with the prior art, the present invention has the following advantages:

[0023] In the method for installing tubular busbars of a stepped concrete tower barrel of the present invention, a tower barrel support platform is installed at intervals of about 30 meters along the height direction of the concrete tower barrel to bear the main body of the integral tubular busbar on each layer. The support base is used to fix and lift the main body of the integral tubular busbar to a certain height relative to the tower barrel support platform to provide an installation space for the butt section of the tubular busbar main body. The side support bracket connects the main body of the integral tubular busbar to the ladder, which can reduce the swaying frequency of the integral tubular busbar and ensure the reliability of the installation.

Description of the Drawings

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for description in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0025] Figure 1 It is a diagram of the tubular busbar installation scheme;

[0026] Figure 2 It is a schematic diagram of the planar installation layout at the tower barrel support platform;

[0027] Figure 3 It is a three-dimensional installation schematic at the tower barrel support platform Figure 1 ;

[0028] Figure 4 It is a three-dimensional installation schematic at the tower barrel support platform Figure 2 ;

[0029] Figure 5 It is a partial installation drawing at the tower barrel support platform of the installation scheme;

[0030] Figure 6 It is a schematic diagram of the side support bracket;

[0031] Figure 7 It is a schematic diagram of the installation of the support base;

[0032] Figure 8 It is a schematic diagram of the support base;

[0033] Figure 9 It is an exploded view of the integral tubular busbar and the butt - section tubular busbar body;

[0034] Figure 10 It is the front view of the integral tubular busbar body;

[0035] Figure 11 It is an exploded view of the limit device and the protection component;

[0036] Figure 12 It is the front view of the fixing buckle and the longitudinal flat steel;

[0037] Figure 13 It is the side view of the integral tubular busbar body.

Specific implementation manner

[0038] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the following further elaborates on the present invention in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0039] Please refer to Figures 1 to 13 , a method for installing a tubular busbar of a stepped concrete tower barrel, comprising the following steps:

[0040] S1: The tower - barrel support platforms 100 for supporting the integral tubular busbar body 1 are arranged at intervals in the concrete tower barrel 600 in the vertical direction;

[0041] S2: Use the internal crane 200 to install the support base 300 on the tower - barrel support platform 100 and connect it through fixing parts;

[0042] S3: Use the internal crane 200 to hoist the integral tubular busbar body 1 located on the bottom platform 610 of the tower - barrel ring to the support base 300 and connect it through fixing parts;

[0043] S4: Install the side support brackets 500 for connecting the integral tubular busbar body 1 and the ladder 400 in the vertical direction along the ladder 400;

[0044] S5: Repeat steps S2 - S4 until the installation of the support base 300, the integral tubular busbar body 1, and the side support bracket 500 on the remaining tower barrel support platform 100 is completed;

[0045] S6: Install the butt - section tubular busbar body 2 between the upper and lower sections of the integral tubular busbar body 1.

[0046] A method for installing a tubular busbar of a stepped concrete tower barrel of the present invention installs a tower barrel support platform every about 30 meters along the height direction of the concrete tower barrel, which is used to bear the integral tubular busbar body of each layer. The support base is used to fix and lift the integral tubular busbar body, so that it is at a certain height relative to the tower barrel support platform to provide an installation space for the butt - section tubular busbar body. The side support bracket connects the integral tubular busbar body with the ladder, which can reduce the swaying frequency of the integral tubular busbar and ensure the reliability of the installation.

[0047] Further, as a preferred implementation manner of this solution rather than a limitation, the tower barrel support platform 100 is provided with a crane opening 110 for the internal crane 200 and the integral tubular busbar body 1 to pass through, and a ladder opening 120 for the ladder 400 to pass through.

[0048] Further, as a preferred implementation manner of this solution rather than a limitation, the bottom of the tower barrel support platform 100 is provided with reinforcing ribs 130, and the reinforcing ribs 130 are located at the bottom of the integral tubular busbar body 1, and both ends thereof are respectively connected to the inner wall of the tower barrel.

[0049] In this embodiment, the reinforcing ribs are I - beams with excellent strength. The reinforcing ribs pass through the support base at the bottom of the integral tubular busbar, and both ends of the reinforcing ribs are respectively connected to the tower barrel wall, making the tower barrel support platform stronger. Also, the gravity of the integral tubular busbar body is stressed on the tower barrel wall through the reinforcing ribs at the bottom of the tower barrel support platform, making the support force of the integral tubular busbar body more reasonable.

[0050] Further, as a preferred implementation manner of this solution rather than a limitation, the support base 300 includes a plurality of support frames 310 for supporting the integral tubular busbar body 1, and support feet 320 for keeping the support frames 310 in an upright state.

[0051] In this embodiment, the support frames lift the integral tubular busbar body to a certain height to provide space for the installation of the butt - section tubular busbar body. The support feet play an auxiliary support role, and the cooperation between the support frames and the support feet is more stable and reliable.

[0052] Further, as a preferred implementation manner rather than a limitation of the present solution, the support frame 310 includes two symmetrically arranged first legs 3110, a fixing portion 3120 disposed between the first legs 3110 and used for connecting the support feet 320, and a first mounting portion 3130 disposed at the bottom end of the first legs 3110 and used for connecting the tower barrel support platform 100. The first mounting portion 3130 is connected to the tower barrel support platform 100 through a fixing member.

[0053] In this embodiment, the fixing portion is disposed between the symmetrically arranged first legs, so that the force on the fixing portion in the outward direction of the first legs can be kept uniform, making it more stable. The first mounting portion is welded to the first legs. By means of the first mounting portion, the contact area with the tower barrel support platform is increased, so that the stress surface of the tower barrel support platform is enlarged, avoiding damage to the surface of the tower barrel support platform. The fixing member is a screw or a self-tapping screw or a bolt.

[0054] Further, as a preferred implementation manner rather than a limitation of the present solution, the support foot 320 includes a second leg 3210 connected to the support frame 310, and a second mounting portion 3220 disposed at the bottom end of the second leg 3210 and used for connecting the tower barrel support platform 100. The second mounting portion 3220 is connected to the tower barrel support platform 100 through a fixing member. The support foot 320 and the support frame 310 form a triangular structure.

[0055] In this embodiment, the second mounting portion is welded to the second leg. By means of the second mounting portion, the contact area with the tower barrel support platform is increased, so that the stress surface of the tower barrel support platform is enlarged, avoiding damage to the surface of the tower barrel support platform. The fixing member is a screw or a self-tapping screw or a bolt.

[0056] Further, as a preferred implementation manner rather than a limitation of the present solution, the side support bracket 500 includes a side support leg 510 for connecting the integral tubular busbar body 1, and a locking member 520 for connecting the side support leg 510. When the side support leg 510 is connected to the locking member 520, the integral tubular busbar body 1 is connected to the ladder 400.

[0057] In this embodiment, the side support bracket is made of high-strength steel plate. A pair of side support brackets is installed at an interval of every 2.5 meters in height. And the side support bracket is small and has high strength.

[0058] Further, as a preferred implementation manner rather than a limitation of the present solution, the side support bracket 500 and the ladder 400 are in interference fit and are connected through a fixing member.

[0059] In this embodiment, the interference fit has the characteristics of simple structure, good centering property, large load-bearing capacity and good impact resistance.

[0060] Further, as a preferred implementation manner rather than a limitation of this solution, it further includes a cover for closing the crane opening 110, and a flange 140 provided around the crane opening 110 and extending upward. When the cover is sleeved with the flange 140, the crane opening 110 is kept closed.

[0061] In this embodiment, after the internal crane stops working, the crane opening needs to be covered with a cover to ensure the safety of installers when working on the tower barrel support platform.

[0062] It also discloses an integral tubular busbar dedicated to a wind power concrete tower barrel, which includes an integral tubular busbar main body 1; or includes multiple integral tubular busbar main bodies 1, and a butt joint section tubular busbar main body 2 for connecting the two integral tubular busbar main bodies 1; the integral tubular busbar main body 1 includes a protection device 3, one or more tubular busbars 4 arranged in the protection device 3, a box body 5 connected to the bottom end of the tubular busbar 4, and one or more limiting devices 6 for restricting the swing of the tubular busbar 4.

[0063] For the integral tubular busbar dedicated to a wind power concrete tower barrel of this application, when leaving the factory, the integral tubular busbar main body, the protection device, the box body, and the limiting device can be directly connected as a whole and transported to the wind turbine site, without the need to transport and install at the tower barrel factory, improving efficiency. And under the action of the protection device, the integral tubular busbar has high strength and can be directly hoisted. By connecting with the butt joint section tubular busbar, the installation of the integral tubular busbar applicable to the concrete tower barrel can be completed more efficiently.

[0064] Further, as a preferred implementation manner rather than a limitation of this solution, the protection device 3 includes a support assembly 32 arranged on the box body 5, a support plate 33 for protecting the top end of the tubular busbar 4, and one or more sections of protection assemblies 31 for connecting the support assembly 32 and the support plate 33. The protection assemblies can be assembled at the production factory without the need to transport and install at the tower barrel factory, saving costs. And under the action of the protection device, the strength can be improved, meeting the requirements of on-site hoisting and improving efficiency.

[0065] Further, as a preferred implementation manner rather than a limitation of this solution, the protection assembly 31 includes multiple longitudinal flat steels 311 arranged around the tubular busbar 4, and the multiple longitudinal flat steels 311 are connected by multiple transverse flat steels 312 or diagonal flat steels 313 and fixed in a triangular structure, making the overall strength of the protection assembly high, which can effectively protect the tubular busbar, thus meeting the requirements of loading and hoisting.

[0066] Further, as a preferred implementation manner rather than a limitation of this solution, the protection device 3 further includes a limiting device 6 disposed between the two protection components 31. The limiting device 6 includes a limiting member 61 disposed on one side of the protection component 31 for the tubular busbar 4 to pass through, and a fixing member 62 disposed on the other side of the protection component 31 for fixing the limiting member 61, which helps to avoid damage to the tubular busbar due to large shaking amplitude during the installation of a relatively high tower barrel.

[0067] Further, as a preferred implementation manner rather than a limitation of this solution, it further includes a fixing buckle 7. The fixing buckle 7 is used to connect two of the integral tubular busbar bodies 1, making the loading and transportation more secure, playing a limiting role, and being small, practical, low-cost, and high-strength.

[0068] Further, as a preferred implementation manner rather than a limitation of this solution, the spacing distance between the limiting devices 6 is kept consistent with the length of the longitudinal flat steel 311, which helps to improve the efficiency during the assembly of the protection components without the need to cut off the redundant flat steel.

[0069] Further, as a preferred implementation manner rather than a limitation of this solution, it further includes a buffer device 8. The buffer device is disposed at the connection between the box body 5 and the bottom end of the tubular busbar 4, at the connection between the support plate 33 and the top end of the tubular busbar 4, and at the connection between the tubular busbar 4 and the limiting device 6, so that it has vertical shock absorption and buffering performance while enhancing the overall strength.

[0070] Further, as a preferred implementation manner rather than a limitation of this solution, it further includes a first connection mechanism 21. The first connection mechanism 21 includes a first connecting member 211 disposed at the bottom of the butt-joint section tubular busbar body 2, and a second connecting member 212 disposed at the top of the integral tubular busbar body 1 for connecting the first connecting member 211. During transportation, the support plate is fixed to the top of the integral tubular busbar body to protect the second connecting member and the top of the tubular busbar from damage. During installation, the support plate is detached from the top of the integral tubular busbar body, and the second connecting member is connected to the first connecting member to achieve rapid installation and improve efficiency.

[0071] Further, as a preferred implementation manner rather than a limitation of this solution, it further includes a second connection mechanism 22. The second connection mechanism 22 includes a third connecting member 221 disposed at the top of the butt-joint section tubular busbar body 2, and a fourth connecting member 222 disposed at the bottom of the integral tubular busbar body 1 within the box body 5 for connecting the third connecting member 221.

[0072] Further, as a preferred implementation manner rather than a limitation of this solution, the buffer device 8 is made of rubber or sponge.

[0073] The working principle of this embodiment is as follows:

[0074] For the installation method of the tubular busbar of a stepped concrete tower barrel of the present invention, a tower barrel support platform is installed every about 30 meters along the height direction of the concrete tower barrel, which is used to bear the integral tubular busbar body of each layer. The support base is used to fix and lift the integral tubular busbar body, so that it is at a certain height relative to the tower barrel support platform to provide an installation space for the butt joint section of the tubular busbar body. The side support bracket connects the integral tubular busbar body with the ladder, which can reduce the shaking frequency of the integral tubular busbar and ensure the reliability of the installation.

[0075] The above are the implementation manners provided in combination with specific contents, and it is not considered that the specific implementation of this application is only limited to these descriptions. Any structure similar to the method of this application, or any technical deduction or replacement made under the premise of the concept of this application, should be regarded as the protection scope of this application.

Claims

1. A method for installing tubular busbars of a stepped concrete tower barrel, characterized in that, It includes the following steps: S1: The tower barrel support platform (100) for supporting the integral tubular busbar body (1) is arranged at intervals in the vertical direction within the concrete tower barrel (600); S2: Use the internal crane (200) to install the support base (300) on the tower barrel support platform (100) and connect it through fixing parts; S3: Use the internal crane (200) to hoist the integral tubular busbar body (1) located on the bottom platform (610) of the tower barrel ring onto the support base (300) and connect it through fixing parts; S4: Install the side support brackets (500) for connecting the integral tubular busbar body (1) and the ladder (400) along the vertical direction of the ladder (400); S5: Repeat steps S2 to S4 until the installation of the support base (300), the integral tubular busbar body (1), and the side support brackets (500) on the remaining tower barrel support platforms (100) is completed; S6: Install the butt joint section tubular busbar body (2) between two adjacent integral tubular busbar bodies (1); The tower barrel support platform (100) is provided with a crane opening (110) for the internal crane (200) and the integral tubular busbar body (1) to pass through, and a ladder opening (120) for the ladder (400) to pass through.

2. The installation method of the tubular busbar of a stepped concrete tower barrel according to claim 1, characterized in that, The bottom of the tower barrel support platform (100) is provided with reinforcing ribs (130), and the reinforcing ribs (130) are located at the bottom of the integral tubular busbar body (1), and its two ends are respectively connected to the inner wall of the tower barrel.

3. A method for installing tubular busbars of a stepped concrete tower barrel according to claim 1, characterized in that, The support base (300) includes a plurality of support frames (310) for supporting the integral tubular busbar body (1), and support feet (320) for keeping the support frames (310) in an upright state.

4. A method for installing tubular busbars of a stepped concrete tower barrel according to claim 3, characterized in that, The support frame (310) includes two symmetrically arranged first legs (3110), a fixing part (3120) arranged between the first legs (3110) and used for connecting the support feet (320), and a first installation part (3130) arranged at the bottom end of the first legs (3110) and used for connecting the tower barrel support platform (100), and the first installation part (3130) is connected to the tower barrel support platform (100) through fixing parts.

5. A method for installing tubular busbars of a stepped concrete tower barrel according to claim 3, characterized in that The support feet (320) include second legs (3210) connected to the support frames (310), and a second installation part (3220) arranged at the bottom end of the second legs (3210) and used for connecting the tower barrel support platform (100), and the second installation part (3220) is connected to the tower barrel support platform (100) through fixing parts, and a triangular structure is formed between the support feet (320) and the support frames (310).

6. The installation method of the tubular busbar of a stepped concrete tower barrel according to claim 1, characterized in that, The side support brackets (500) include side support legs (510) for connecting the integral tubular busbar body (1), and locking parts (520) for connecting the side support legs (510). When the side support legs (510) are connected to the locking parts (520), the integral tubular busbar body (1) is connected to the ladder (400).

7. A method for installing tubular busbars of a stepped concrete tower barrel according to claim 1, characterized in that, An interference fit is provided between the side support bracket (500) and the ladder (400), and they are connected by fixing members.

8. A method for installing tubular busbars of a stepped concrete tower barrel according to claim 1, characterized in that, It further includes a cover for closing the crane opening (110), and a flange (140) provided around the crane opening (110) and extending upward. When the cover is sleeved with the flange (140), the crane opening (110) is kept closed.

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