CN110159049A - A kind of Y type tower - Google Patents

Abstract

The application discloses a Y-shaped tower, including a Y-shaped tower body, the Y-shaped tower tower body includes a tower pole arranged vertically and a bifurcated tower head connected to the top of the tower pole; several groups of composite cross arms are symmetrically arranged On the tower body of the Y-shaped pole, each group of composite cross arms is provided with at least one apex angle for connecting the wires. Due to the symmetrical structure of the Y-shaped tower tower, the asymmetrical force of the tower body is reduced. At the same time, the composite crossarm has light weight, high mechanical properties and good insulation strength, which can effectively reduce the weight of the tower body material, compress the line corridor, and save land resources. In addition, because the composite cross arm itself has good insulation performance, it can meet the safety insulation distance between the wire and the Y-shaped tower body, so the setting of the pendant insulator can be cancelled, and the Y-type pole can be reduced. The height of the tower tower is reduced, and the problem of wind deflection and flashover caused by the wind swing of the pendant insulator is avoided.

Description

A Y-shaped tower

technical field

The present application relates to the technical field of power transmission insulation equipment, in particular to a Y-shaped tower.

Background technique

In the field of power equipment, the cross arm used for transmission lines is an important supporting structure for single-pole towers, which is used to support wires, etc., and keep them at a certain safe distance according to regulations. At present, the commonly used single-pole towers are usually all-steel towers or towers with concrete shafts and steel cross-arms.

Conventional steel pipe towers are "up"-shaped structures, and there are problems of wide transmission line corridors and high towers. And the tower is an asymmetric structure, and the force is inconsistent. In order to meet the load force, more materials are used for the main material of the tower. The connection between the tower and the wire adopts a hanging insulator, which will cause the wire to swing under the action of the strong wind, which is prone to the problem of wind deflection and flashover.

SUMMARY OF THE INVENTION

The present application provides a Y-shaped tower, which can solve the problems of a conventional steel pipe tower with wide line corridors, heavy towers, many consumables, and easy wind and partial flashover.

In order to solve the above-mentioned technical problems, a technical solution adopted in the present application is to provide a Y-shaped tower, comprising: a Y-shaped tower tower body, the Y-shaped tower tower body includes a vertical tower rod and a tower rod connected to the top of the tower rod. A bifurcated tower head; several groups of composite cross-arms are symmetrically arranged on the Y-shaped tower and tower body, and each group of the composite cross-arms is provided with at least one apex angle for hanging wires.

Further, each group of the composite cross arm includes a pillar insulator and a first cable-stayed insulator; the pillar insulator is horizontally connected to the Y-shaped tower body; one end of the first cable-stayed insulator is connected to the pillar insulator away from One end of the Y-shaped tower body forms the apex angle, and the other end is connected to the bifurcated tower head.

Further, the post insulator is connected at the connection point of the tower rod and the bifurcated tower head.

Further, the bifurcated tower head includes two symmetrically arranged tower head rods, the tower head rods are in the shape of a broken line, and the other end of the first cable-stayed insulator is connected to the broken line-shaped tower head corner of the rod.

Further, the other end of the first cable-stayed insulator is connected to the top of the bifurcated tower head.

Further, the first cable-stayed insulator includes a metal segment and an insulating segment connected to each other, the metal segment is connected to the top of the bifurcated tower head, and the insulating segment is connected to the pillar insulator.

Further, the two top ends of the bifurcated tower head are respectively connected with a second cable-stayed insulator arranged opposite to each other, and the two second cable-stayed insulators are connected to each other by connecting fittings, and the connecting fittings are used for hanging wires. .

Further, the connecting hardware is one of a hanging ring, a hanging plate, and an adjustment plate.

Further, the composite cross-arms are provided with two groups, and the two groups of the composite cross-arms are respectively arranged on both sides of the Y-shaped tower body, and the two groups of the composite cross-arms and the bifurcated tower head are respectively arranged. on the same plane.

Further, the body of the Y-shaped tower is a steel pipe tower, a flange is fixed on the tower, and the pillar insulator is fixedly connected to the flange.

The beneficial effects of the present application are: different from the situation in the prior art, since the tower body of the Y-shaped tower is a symmetrical structure, the asymmetrical force of the tower body is reduced. At the same time, the composite crossarm has light weight, high mechanical properties and good insulation strength. Using the composite crossarm to connect the wire with the Y-shaped tower body can effectively reduce the weight of the tower body material, compress the line corridor, and save land resources. In addition, because the composite cross arm itself has good insulation performance, it can meet the requirements of the safe insulation distance between the wire and the Y-shaped tower body. Therefore, the setting of the pendant insulator can be cancelled, and the same wire-to-ground distance is satisfied. The height of the Y-type tower tower body is high, and the problem of wind deflection flashover caused by wind swing of the pendant insulator is avoided.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present application more clearly, the following briefly introduces the drawings that are used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, under the premise of no creative work, other drawings can also be obtained from these drawings, wherein:

Fig. 1 is the overall structure schematic diagram of an embodiment of the Y-type tower of the present application;

Fig. 2 is the partial structure schematic diagram of another embodiment of the Y-type tower of the present application;

FIG. 3 is a schematic partial structure diagram of another embodiment of the Y-shaped tower of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

Please refer to FIG. 1 , which is a schematic diagram of the overall structure of an embodiment of the Y-shaped tower of the present application.

As shown in FIG. 1 , a Y-shaped tower 01 according to an embodiment of the present application includes a Y-shaped tower body 11 and several groups of composite cross arms 12 . The tower body 11 of the Y-shaped pole tower includes a vertical tower pole 111 and a bifurcated tower head 112 connected to the top of the tower pole 111; At least one top corner is provided for hooking wires. Since the tower body 11 of the Y-shaped tower is a symmetrical structure, the asymmetrical force of the tower body is reduced, thereby reducing the weight of the tower body material. The composite cross arm 12 has light weight, high mechanical properties and good insulation strength. Using the composite cross arm 12 to connect the wire with the Y-shaped tower body 11 can effectively reduce the weight of the tower body material, compress the line corridor, and save land resources. In addition, because the composite cross arm 12 itself has good insulation performance, it can meet the safety insulation distance between the wire and the Y-shaped tower body 11, so the setting of the pendant insulator can be cancelled, and the same wire-to-ground distance is satisfied. The height of the tower body 11 of the Y-type pole tower is reduced, and the problem of wind deflection flashover caused by the wind swing of the pendant insulator is avoided.

In one embodiment, as shown in FIG. 1 , the top corners of each set of composite cross-arms 12 are directly connected to wires through the metal flanges 13 at the ends of the composite cross-arms 12 . After the metal flange 13 is connected to the end fitting string or the hanging clip, the wire can be hung. In other embodiments, the top corners of each group of composite cross-arms 12 can also be connected to other common types of wire-hanging fittings by using other connection methods such as plate-type connection, cross-pin connection, etc. for hanging wires. In one embodiment, as shown in FIG. 1 , the tower body 11 of the Y-shaped tower is a steel pipe tower, and the composite cross arm 12 is made of composite materials. Specifically, the composite cross arm 12 includes an insulator inside and a rubber shed covering the insulator. Specifically, the insulator may be an insulating tube or an insulating mandrel. The insulating pipe can be glass fiber reinforced plastic steel pipe impregnated with epoxy resin, or aramid fiber pipe impregnated with epoxy resin, and the insulating mandrel can be glass fiber or aramid fiber impregnated with epoxy resin. The solid mandrel or hollow pultruded tube is wound and pultruded, and the rubber shed can be made of high temperature vulcanized silicone rubber or other forms of rubber materials. In other embodiments, the composite cross arm 12 may also be other composite materials, which is not limited here.

In one embodiment, as shown in FIG. 1 , each group of composite cross arms 12 includes a pillar insulator 121 and a first cable-stayed insulator 122. The pillar insulator 121 is horizontally connected to the Y-shaped tower body 11, and one end of the first cable-stayed insulator 122 is horizontally connected. It is connected to one end of the column insulator 121 away from the tower body 11 of the Y-shaped tower to form a top angle, and the other end is connected to the bifurcated tower head 112 . The pillar insulator 121 performs the functions of electrical insulation and mechanical support, and the first cable-pulled insulator 122 is connected to the pillar insulator 121 by cable-pulling, so as to offset the downward pulling force at the end of the pillar insulator 121 due to the hanging wire. Specifically, in this embodiment, metal flanges 13 are provided at both ends of the pillar insulator 121 , U-shaped fittings are provided at the end of the first diagonal-pulled insulator 122 , a connection plate is provided on the metal flange 13 , and the connection plate is provided with a U-shaped fitting. The connection holes correspond to the connection holes on the U-shaped fittings, and then they can be fixed and connected by bolts and nuts. Compared with the non-horizontally connected pillar insulator 121, the pillar insulator 121 horizontally connected to the Y-shaped tower body 11 has a longer safe insulation distance under the condition of a certain length of the pillar insulator 121, that is, when a certain safety insulation distance needs to be guaranteed. In this case, the horizontally connected post insulators 121 can save material to a certain extent. Of course, the present application is not limited to this, and in other embodiments, each group of composite cross arms 12 may also include only post insulators 121 , and the post insulators 121 are arranged horizontally.

Further, as shown in Figure 1, the composite cross arm 12 is provided with two groups, the two groups of composite cross arms 12 are respectively arranged on both sides of the Y-shaped tower body 11, the two groups of composite cross arms 12 and the bifurcated tower head 112. in the same plane. Therefore, the length of the first diagonal-pulled insulator 122 can be shortened to save material and cost. In other embodiments, the composite cross arms 12 are also provided with four groups or six groups, which can be symmetrically arranged on both sides of the Y-shaped tower body 11 in sequence.

Further, as shown in FIG. 1 , the column insulator 121 is connected to the connection point of the tower pole 111 and the bifurcated tower head 112 , so as to ensure the maximum wire-to-ground distance under the condition of compressing the corridor width. Specifically, the tower rod 111 is provided with a flange, which corresponds to the flange 13 at the end of the pillar insulator 121 and is fixedly connected. Specifically, common connection methods such as welding, gluing, and bolted connection can be used.

Further, as shown in FIG. 1 , the other end of the first cable-stayed insulator 122 is connected to the top of the bifurcated tower head 112 , so that the first cable-stayed insulator 122 can ensure sufficient safety insulation with the bifurcated tower head 112 distance, and the top of the bifurcated tower head 112 is more convenient to install and fix the first inclined-stayed insulator 122 and is not easy to slip off. Further, the first cable-pulled insulators 122 are connected vertically.

In another embodiment, please refer to FIG. 2 , which is a partial structural schematic diagram of another embodiment of the Y-shaped tower of the present application. In this embodiment, the first cable-stayed insulator 222 includes a metal segment 2221 and an insulating segment 2222 connected to each other, the metal segment 2221 is connected to the top of the bifurcated tower head 212, and the insulating segment 2222 is connected to the pillar insulator 221 away from the Y-shaped tower tower One end of the body, specifically, the insulating section 2222 is connected to the flange 23 at the end of the post insulator 221 . When there is a sufficient safety insulation distance between the first cable-stayed insulator 222 and the bifurcated tower head 212 , a metal piece can be used to replace the composite insulation for the part of the section where the first cable-stayed insulator 222 and the bifurcated tower head 212 are directly connected. materials to save costs.

In yet another embodiment, please refer to FIG. 3 , which is a partial structural schematic diagram of yet another embodiment of the Y-shaped tower of the present application. In this embodiment, the bifurcated tower head 312 includes two symmetrically arranged tower head rods 3121 , the tower head rods 3121 are zigzag-shaped, and the first inclined-pull insulator 322 is connected to the corners of the zigzag-shaped tower head rods 3121 . Under the condition that the safety insulation distance is satisfied, the length of the first cable-stayed insulator 322 can be shortened by connecting to the corner of the tower head rod 3121, thereby saving materials and costs. In addition, compared with the straight part of the tower head rod 3121, the corners of the tower head rod 3121 are convenient for installation and fixing of the first inclined-pulled insulator 322, and are not easy to slip off.

Continuing to refer to FIG. 1 , in one embodiment, two top ends of the bifurcated tower head 112 are respectively connected with a second cable-stayed insulator 14 disposed opposite to each other. Specifically, one end of the two second cable-stayed insulators 14 is respectively connected to the two top ends of the bifurcated tower head 112 , and the other ends of the two second cable-stayed insulators 14 are connected to each other through the connecting fittings 15 , and the connecting fittings 15 are used for Hook up the wires. In this embodiment, the connecting hardware 15 adopts a hanging plate. In other embodiments, other common connecting hardware structures such as a hanging ring and an adjustment plate can also be used, which are not limited here. The wire can be hung after the connecting fitting 15 is connected to the end fitting string or the hanging clip, or the connecting fitting 15 itself can be directly connected to the wire.

To sum up, by adopting the Y-shaped tower body 11, and setting the composite cross arm 12 on the Y-shaped tower body 11, the composite cross arm 12 is provided with a top angle for hooking wires. Because the tower body 11 of the Y-shaped tower is a symmetrical structure, the asymmetrical force of the tower body is reduced. At the same time, the composite cross arm 12 has light weight, high mechanical properties and good insulation strength. Using the composite cross arm 12 to connect the wires to the Y-shaped tower body 11 can effectively reduce the weight of the tower body material, compress the line corridor, and save land resources. In addition, since the composite cross arm 12 itself has good insulation performance, it can meet the safety insulation distance between the wire and the Y-shaped tower body 11, so the setting of the pendant insulator can be cancelled, and the same wire-to-ground distance is satisfied. The height of the tower body 11 of the Y-shaped tower is reduced, and the problem of wind deflection flashover caused by the wind swing of the pendant insulator is avoided.

The above description is only an embodiment of the present application, and is not intended to limit the scope of the patent of the present application. Any equivalent structure or equivalent principle transformation made by using the contents of the description and drawings of the present application, or directly or indirectly applied to other related technologies Fields are similarly included within the scope of patent protection of this application.

Claims (10)

1. a kind of Y type tower characterized by comprising

Y type shaft tower tower body, the Y type shaft tower tower body include the tower bar being vertically arranged and the branch type tower that is connected at the top of tower bar Head；

The compound cross-arm of several groups is symmetrically disposed on the Y type shaft tower tower body, and compound cross-arm described in every group is equipped at least one top Angle, for mounting conducting wire.

2. Y type tower as described in claim 1, which is characterized in that compound cross-arm described in every group includes support insulator and first Oblique pull insulator；

The support insulator horizontal connection is in the Y type shaft tower tower body；

Described first oblique pull insulator one end be connected to the support insulator formed far from Y type shaft tower tower body one end it is described Apex angle, the other end are connected to the branch type tower head.

3. Y type tower as claimed in claim 2, which is characterized in that the support insulator is connected to the tower bar and described point At the tie point of forked type tower head.

4. Y type tower as claimed in claim 2, which is characterized in that the branch type tower head includes two symmetrically set tower head Bar, the tower head bar are fold-line-shaped, and the other end of the first oblique pull insulator is connected to the tower head bar of fold-line-shaped Corner.

5. Y type tower as claimed in claim 2, which is characterized in that the other end of the first oblique pull insulator is connected to The top of the branch type tower head.

6. Y type tower as claimed in claim 5, which is characterized in that the first oblique pull insulator includes metal interconnected Section and insulating segment, the metal segments are connected to the top of the branch type tower head, and the insulating segment is connected to the post insulator Son.

7. Y type tower as described in claim 1, which is characterized in that two tops of the branch type tower head are connected separately with one The second oblique pull insulator being oppositely arranged, two the second oblique pull insulators are connected with each other by connection gold utensil, the connection Fitting is for mounting conducting wire.

8. Y type tower as claimed in claim 7, which is characterized in that the connection gold utensil is link, hanging plate, one in adjustment plate Kind.

9. Y type tower as described in claim 1, which is characterized in that the compound cross-arm is provided with two groups, and compound described in two groups Cross-arm is respectively arranged at the two sides of the Y type shaft tower tower body, compound cross-arm described in two groups and the branch type tower head same flat Face.

10. Y type tower as claimed in claim 2, which is characterized in that the Y type shaft tower tower body is steel pipe tower, in the tower bar Ring flange is fixedly installed, the support insulator is fixedly connected with the ring flange.