Modularly assembled steel tubular tower pole for transmission lines of different voltage classes and method of assembly

Abstract

The modularized steel pipe tower rod suitable for different voltage grade transmission lines relates to a transmission tower for high voltage transmission lines. The tower is composed of multiple main pipes connected in sequence from top to bottom. The two ends of each main pipe are provided with flanges. The flanges of two connected main pipes correspond in size, so that the two main pipes can be fixed and connected by bolts. The lowermost main pipe is fixed and connected to a base embedded in the ground through the flange. The base is a reinforced concrete foundation. A connecting seat matched with the lowermost main pipe is arranged above the foundation. A plurality of long screws are arranged on the connecting seat. The flange of the lower end of the lowermost main pipe is inserted into the long screws and screwed by nuts. The upper main pipes are fixedly installed with cross arms. The cross arms are connected with high voltage transmission lines through insulators.

Description

Technical Field

[0001] This invention relates to a modularly assembled steel pipe tower suitable for transmission lines of different voltage levels and an assembly method thereof, which relates to a transmission tower for high-voltage transmission lines and a corresponding installation method. Background Technology

[0002] In modern power systems, high-voltage transmission lines are critical infrastructure for urban power transmission, and their operational status affects the stability of electricity consumption and the normal operation of cities. However, due to increasingly frequent extreme weather events, such as strong winds, ice storms, or floods, the risk of damage to transmission lines has significantly increased. Existing transmission towers are mostly truss structures. These towers are complex to assemble, require high labor costs, and occupy a large area of ​​ground. Furthermore, due to their large windward area, their strength is often insufficient under extreme weather conditions. Moreover, their installation in the confined spaces of urban areas is often constrained by conditions, and they require separate designs for different voltage levels, resulting in poor versatility.

[0003] Based on this, it is necessary to design a modularly assembled steel pipe tower suitable for transmission lines of different voltage levels. The modular design of this transmission tower achieves the versatility of components and meets the load-bearing capacity requirements of steel pipe transmission towers of different heights under different voltage levels, thereby effectively improving the erection efficiency and operational reliability of urban transmission lines. Summary of the Invention

[0004] To address the shortcomings and challenges in the aforementioned background technology, this invention provides a modularly assembled steel pipe tower suitable for transmission lines of different voltage levels. This type of steel pipe tower achieves structural versatility, meets the load-bearing capacity requirements of steel pipe towers of different heights at different voltage levels, and has good application and promotion effects. Specifically, it is achieved through the following technical solution:

[0005] A modular steel pipe tower suitable for transmission lines of different voltage levels is constructed by sequentially connecting multiple main pipe sections from top to bottom. Each main pipe has flanges at both ends, with corresponding flange sizes on every two connected sections for easy bolt fixing. The lowest main pipe is fixedly connected to a base deeply buried in the ground via a flange. The base is a reinforced concrete platform, with a connecting seat on top that matches the lowest main pipe. The connecting seat has multiple long threaded rods protruding from its surface. The flange at the lower end of the lowest main pipe is inserted into these long threaded rods and tightened with nuts. A crossarm is fixedly installed on the upper main pipe, and high-voltage transmission lines are connected to the crossarm via insulators.

[0006] Specifically, the upper main pipe has a pair of threaded holes on its outer wall, and the steel crossbeam has a corresponding flange at its end. Bolts are fixedly connected to the main pipe through the flange at the end of the crossbeam.

[0007] The number of crossarms is not limited to one; when there are multiple crossarms, a sufficient and safe distance should be left between the upper and lower crossarms.

[0008] Furthermore, when there are multiple crossarms, the length of the upper crossarm should not be greater than that of the lower crossarm, thereby rationalizing the load-bearing capacity of the transmission tower and avoiding instability caused by top-heavy structures.

[0009] The cross-sectional dimensions of the multi-section main pipe increase sequentially from top to bottom. This design ensures that the strength of the main pipe increases towards the bottom, thus guaranteeing that the upper main pipe is lightweight while the lower main pipe has sufficient strength.

[0010] The cross-section of the main tube is circular or a regular polygon, preferably a regular octagon.

[0011] Furthermore, a metal ladder is fixedly installed on one side of the main pipe by welding. All the metal ladders on the main pipe are located on one side, which makes it convenient for maintenance personnel to climb the tower for maintenance.

[0012] This invention provides a modularly assembled steel pipe tower suitable for transmission lines of different voltage levels, applicable to 66KV, 110KV and 220KV transmission lines;

[0013] The modular steel pipe towers used for transmission lines of different voltage levels, such as 66KV, 110KV and 220KV, can also be set up in pairs and connected to the main pipe by a horizontal connecting rod, which can increase the transmission capacity as needed.

[0014] During installation, prepare the corresponding number and size of main pipes, crossarms, and insulators according to the actual construction needs; connect the main pipes in sequence, install the crossarms on the upper main pipes, fix the assembled multi-section main pipes to the base with bolts, then install the insulators on the crossarms, and finally install the high-voltage wires on the insulators.

[0015] The beneficial effects of this application are as follows:

[0016] This invention uses a main pipe made of steel pipe as the backbone, with a crossbeam installed on the upper part of the main pipe. The components are simple in form, occupy little space, are easy to process and transport in a modular manner, and effectively reduce the economic and time costs of the project.

[0017] Furthermore, the main pipe in this invention achieves a high degree of modularity, and the main pipe and crossarm can be freely assembled, which is convenient and efficient, effectively saving the time and cost of tower erection; the main pipe can achieve modularization through combined structural forms, reducing economic costs, while meeting the load-bearing capacity requirements of towers under different voltage levels. Attached Figure Description

[0018] Figure 1 This is a schematic diagram (including the base) of the present invention, showing the structure of two main pipes connected by a horizontal connecting rod.

[0019] Figure 2 This is a schematic diagram (excluding the base) of a modularly assembled steel pipe tower for transmission lines of different voltage levels when using a single main pipe, according to the present invention.

[0020] Figure 3 This is a schematic diagram of the main tube structure of the modular splicing of different call heights according to the present invention (from left to right, the call heights are 12 meters, 15 meters, 18 meters, 21 meters, 24 meters, 27 meters and 30 meters). Detailed Implementation

[0021] The following will refer to the appendices in the embodiments of the present invention. Figures 1-3 The technical solutions in the embodiments of the present invention are clearly and completely described herein. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0022] A modular steel pipe tower suitable for transmission lines of different voltage levels is constructed by connecting multiple main pipe sections 1 sequentially from top to bottom. Each main pipe section 1 has a flange at both ends, and the flanges on every two sections of main pipe 1 connected end to end are of corresponding dimensions, facilitating fixed connection by bolts. The lowest main pipe section 1 is fixedly connected to a base 2 deeply buried in the ground via a flange. The base 23 is a reinforced concrete platform, and a connecting seat matching the lowest main pipe section is provided on the platform. The connecting seat has multiple long screws 2-1 protruding from the surface. The flange at the lower end of the lowest main pipe section 1 is inserted into the long screws 2-1 and tightened with nuts. A crossarm 3 is fixedly installed on the upper main pipe section 1, and a high-voltage transmission line is connected to the crossarm 3 via insulators.

[0023] Specifically, the upper main pipe 1 has a pair of threaded holes on its outer wall, and the steel crossbeam 3 has a corresponding flange at its end. Bolts are fixedly connected to the main pipe 1 through the flange at the end of the crossbeam 3.

[0024] The number of crossarms 3 is not limited to one; when there are multiple crossarms 3, a sufficient and safe distance should be left between the upper and lower crossarms 3.

[0025] Furthermore, when there are multiple crossarms 3, the length of the upper crossarm 3 should not be greater than that of the lower crossarm 3, thereby rationalizing the load-bearing capacity of the transmission tower and avoiding instability caused by top-heavy structures.

[0026] The cross-sectional dimensions of the multi-section main pipe 1 increase sequentially from top to bottom. This arrangement ensures that the strength of the main pipe 1 increases towards the bottom, thereby guaranteeing that the upper main pipe 1 is lightweight while the lower main pipe 1 has sufficient strength.

[0027] The cross-section of the main tube 1 is circular or a regular polygon, preferably a regular octagon.

[0028] Furthermore, a metal ladder is also fixedly installed on one side of the main pipe 1 by welding. All the metal ladders on the main pipes are located on one side, which makes it convenient for maintenance personnel to climb the tower for maintenance.

[0029] This invention provides a modularly assembled steel pipe tower suitable for transmission lines of different voltage levels, applicable to 66KV, 110KV and 220KV transmission lines;

[0030] Furthermore, the modular steel pipe towers for 66KV transmission lines of different voltage levels can also be configured as two towers, connected to the main pipe 1 by a horizontal connecting rod 4, which can increase the transmission capacity as needed.

[0031] Based on the steel pipe towers of 66KV transmission lines, the requirement can be met by further increasing the number of main pipes on the steel pipe towers of 110KV transmission lines.

[0032] Furthermore, the modular steel pipe towers for 110KV transmission lines of different voltage levels can also be configured as two towers, connected to the main pipe 1 by a horizontal connecting rod 4, which can increase the transmission capacity as needed.

[0033] A modularly assembled steel pipe tower suitable for transmission lines of different voltage levels can be adapted to 220KV transmission lines by increasing the number of main pipes 1 based on the steel pipe towers of 110KV transmission lines.

[0034] Furthermore, the modular steel pipe towers for 220KV transmission lines of different voltage levels can also be configured as two towers, connected to the main pipe 1 by a horizontal connecting rod 4, which can increase the transmission capacity as needed.

[0035] During installation, prepare the corresponding number and size of main pipe 1, crossarm 3 and insulators according to the actual construction needs; connect the main pipe 1 in sequence, and install the crossarm 3 on the upper main pipe 1. Fix the assembled multi-section main pipe 1 to the base 2 with bolts, then install the insulator on the crossarm 3, and finally install the high-voltage wire on the insulator.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A modularly assembled steel pipe tower suitable for transmission lines of different voltage levels, characterized in that, The system is composed of multiple main pipe sections connected sequentially from top to bottom. Each main pipe has a flange at both ends, and the flanges on every two connected main pipe sections are of corresponding sizes, facilitating a fixed connection using bolts. The lowest main pipe is fixedly connected to a base deeply buried in the ground via a flange. The base is a reinforced concrete platform, and a connecting seat matching the lowest main pipe is installed on top of the platform. The connecting seat has multiple long threaded rods protruding from the surface. The flange at the lower end of the lowest main pipe is inserted into the long threaded rods and tightened with nuts. A crossarm is fixedly installed on the upper main pipe, and a high-voltage transmission line is connected to the crossarm via insulators.

2. A modularly assembled steel pipe tower suitable for transmission lines of different voltage levels according to claim 1, characterized in that, The upper part of the main pipe has a pair of threaded holes on its outer wall, and the steel crossbeam has a corresponding flange at its end. Bolts are fixedly connected to the main pipe through the flange at the end of the crossbeam.

3. A modularly assembled steel pipe tower suitable for transmission lines of different voltage levels according to claim 1, characterized in that, The number of crossarms is not limited to one; when there are multiple crossarms, a sufficient and safe distance should be left between the upper and lower crossarms.

4. A modularly assembled steel pipe tower suitable for transmission lines of different voltage levels according to claim 3, characterized in that, When there are multiple crossarms, the length of the upper crossarm should not be greater than that of the lower crossarm.

5. A modularly assembled steel pipe tower suitable for transmission lines of different voltage levels according to claim 1, characterized in that, The cross-sectional dimensions of the multi-section main pipe increase sequentially from top to bottom.

6. A modularly assembled steel pipe tower suitable for transmission lines of different voltage levels according to claim 1, characterized in that, The cross-section of the main tube is circular or a regular polygon.

7. A modularly assembled steel pipe tower suitable for transmission lines of different voltage levels according to claim 1, characterized in that, A metal ladder is also fixedly installed on one side of the main pipe by welding, and all the metal ladders on the main pipe are located on one side.

8. A modularly assembled steel pipe tower suitable for transmission lines of different voltage levels according to any one of claims 1-7, characterized in that, Applicable to 66KV, 110KV and 220KV transmission lines; Among them, based on the steel pipe towers of 66KV transmission lines, the requirements can be met by further increasing the number of main pipes of the steel pipe towers of 110KV transmission lines; When adapting to 220KV transmission lines, the requirements can be met by further increasing the number of main pipes based on the steel pipe towers of 110KV transmission lines.

9. A modularly assembled steel pipe tower suitable for transmission lines of different voltage levels according to claim 8, characterized in that, The modular steel pipe towers used for transmission lines of different voltage levels, such as 66KV, 110KV and 220KV, can also be set up in pairs and connected to the main pipe by a horizontal connecting rod, which can increase the transmission capacity as needed.

10. An assembly method for modularly assembled steel pipe towers suitable for transmission lines of different voltage levels, characterized in that, During installation, prepare the corresponding number and size of main pipes, crossarms, and insulators according to the actual construction needs; connect the main pipes in sequence, install the crossarms on the upper main pipes, fix the assembled multi-section main pipes to the base with bolts, then install the insulators on the crossarms, and finally install the high-voltage wires on the insulators.

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