CN206128800U - Novel thoughtlessly press three return circuit view towers - Google Patents

Abstract

A new type of mixed-pressure three-circuit landscape tower, including tower body, cross-arm and hanging string, cross-arm includes landscape cross-arm, middle-level conductor cross-arm and lower-level conductor cross-arm, landscape cross-arm is placed on the top of the tower body, perpendicular to the line Arrange cross arms on both sides in the direction, place the cross arms on both sides perpendicular to the direction of the line, arrange the cross arms on both sides perpendicular to the direction of the line, place the cross arms on the lower layer under the cross arms of the middle line, arrange the cross arms on both sides perpendicular to the direction of the line, and hang The strings are respectively placed on the cross-arms on both sides of the landscape cross-arm, the middle-level conductor cross-arm and the lower-level conductor cross-arm, and the landscape cross-arm adopts a three-layer horse head structure. Beneficial effects of the utility model: This new model proposes a tower head scheme of "500kV/220kV left and right mixed voltage arrangement", compared with the "500kV/220kV up and down mixed voltage" scheme, which effectively reduces the line load bending moment effect and reduces the size of the tower head. Reduce the height of the tower, realize the parallel operation of 500kV and 220kV lines in windows, and effectively improve the convenience of line operation and maintenance.

Description

A new mixed-pressure three-circuit landscape tower

technical field

The utility model relates to the technical field of high-voltage transmission lines, in particular to a novel mixed-voltage three-circuit landscape tower.

Background technique

At present, the existing conventional three-circuit transmission line adopts the arrangement of the upper circuit and the lower circuit. For the 500kV/220kV mixed voltage line, due to the influence of conductor sag and electrical clearance, the distance between lines of different voltage levels is relatively large, increasing the The size of the tower head of the tower is increased. Since 500kV is located on the upper part of the tower body, the line load and bending moment effect of the tower is obvious, which intensifies the force on the tower and increases the consumption of tower materials. 500kV and 220kV are arranged vertically. When 500kV is overhauled, the 220kV line needs to be stopped, which increases the difficulty of operation and overhaul.

Utility model content

In order to overcome the deficiencies of the existing technology, the utility model provides a new type of mixed pressure three-circuit landscape tower, which proposes a tower head scheme of "500kV/220kV left and right mixed pressure arrangement", which is different from "500kV/220kV Compared with the "upper and lower mixed pressure" scheme, it can effectively reduce the load bending moment effect of the line, reduce the size of the tower head, reduce the height of the tower, realize the horizontal parallel operation of the 500kV and 220kV lines, and effectively improve the convenience of line operation and maintenance.

The technical solution adopted by the utility model to solve the problems of the technologies described above is:

A new type of mixed-pressure three-circuit landscape tower, including a tower body, a cross arm and a suspension string. The cross arm includes a landscape cross arm, a middle-level conductor cross-arm and a lower-level conductor cross-arm. , Arrange cross arms on both sides perpendicular to the line direction, place the cross arm of the middle conductor under the landscape cross arm, arrange the cross arms on both sides perpendicular to the direction of the line, place the cross arm of the lower conductor under the cross arm of the middle conductor, and arrange both sides perpendicular to the direction of the line As for the cross arm, the hanging strings are respectively placed on the two side cross arms of the landscape cross arm, the middle-level wire cross-arm and the lower-level wire cross-arm, and the landscape cross-arm adopts a three-layer horse head structure.

The suspension strings include 500kV suspension strings, 220kV suspension strings and ground wire suspension strings. One 500kV suspension string is suspended on one side of the lower layer of the landscape cross-arm, and two 220kV suspension strings are suspended on the other side and the middle of the lower layer. The landscape cross-arm The ground wire is suspended from the suspension string of the fixed ground wire at the middle layer, and a 500kV suspension string is suspended from one side of the middle layer wire cross arm and the lower layer wire cross arm, and the other side of the middle layer wire cross arm and the lower layer wire cross arm is slightly Two 220kV suspension strings are suspended in the middle and the middle.

The suspension string adopts a V-shaped string design, and the size of the cross-arm is affected by the spacing of the 500kV and 220kV wires, which can effectively reduce the limitation of the wire spacing and reduce the width of the cross-arm.

Beneficial effects of the utility model: This new model proposes a tower head scheme of "500kV/220kV left and right mixed voltage arrangement", compared with the "500kV/220kV up and down mixed voltage" scheme, which effectively reduces the line load bending moment effect and reduces the size of the tower head. Reduce the height of the tower, realize the parallel operation of 500kV and 220kV lines in windows, and effectively improve the convenience of line operation and maintenance.

Description of drawings

Further description will be given below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is a structural representation of the utility model.

detailed description

As shown in Figure 1, a new type of mixed pressure three-circuit landscape tower consists of tower body 1, landscape cross arm 2, middle conductor cross arm 3, lower conductor cross arm 4, 500kV suspension string 5, 220kV suspension string 6 and ground wire The hanging string consists of 7.

The landscape cross arm 2 is set on the top of the tower body 1, and the landscape cross arm 2 refers to the Huizhou architectural style, adopts a three-layer horse head wall design, and is arranged vertically to the direction of the line; Two 220kV suspension strings 6 are hung on the other side and the middle of the lower layer, the landscape cross arm 2 middle layer is used to fix the ground wire suspension string 7 to hang the ground wire, and the landscape cross arm 2 upper layer cross arm is mainly used for aesthetics. The middle-level conductor cross-arm 3 is set under the landscape cross-arm 2, and the lower-level conductor cross-arm 4 is arranged under the middle-level conductor cross-arm 3, all of which are arranged perpendicular to the line direction. And two 220kV suspension strings 6 in the middle.

The suspension string adopts a V-shaped string design, and the size of the cross-arm is affected by the spacing of the 500kV and 220kV wires, which can effectively reduce the limitation of the wire spacing and reduce the width of the cross-arm.

The utility model has been described through the above embodiments, but it should be understood that the above embodiments are only for the purpose of illustration and description, and are not intended to limit the utility model to the scope of the described embodiments. In addition, those skilled in the art can understand that the utility model is not limited to the above-mentioned embodiments, and more variations and modifications can be made according to the teaching of the utility model, and these variations and modifications all fall within the scope of the utility model. within the scope of protection.

Claims (3)

1. A novel mixed-pressure three-circuit landscape tower is characterized in that it comprises a tower body, a cross-arm and a suspension string, and the cross-arm comprises a landscape cross-arm, a middle-level wire cross-arm and a lower-level wire cross-arm, and the landscape cross-arm Placed on the top of the tower body, the cross arms on both sides are arranged perpendicular to the direction of the line, the cross arm of the middle conductor is placed under the landscape cross arm, the cross arms on both sides are arranged perpendicular to the direction of the line, the cross arm of the lower conductor is placed under the cross arm of the middle conductor, The cross arms on both sides are arranged perpendicular to the line direction, and the hanging strings are respectively placed on the two side cross arms of the landscape cross arm, the middle layer conductor cross arm and the lower layer conductor cross arm, and the landscape cross arm adopts a three-layer horse head structure. 2. A new type of mixed pressure three-circuit landscape tower according to claim 1, characterized in that, the suspension strings include 500kV suspension strings, 220kV suspension strings and ground wire suspension strings, and the lower side of the landscape cross-arm is slightly suspended One 500kV suspension string, two 220kV suspension strings are suspended on the other side and the middle of the lower layer, the ground wire is fixed on the middle portion of the landscape cross arm, the suspension string is suspended from the ground wire, and the middle layer wire cross arm and the lower layer wire cross arm are slightly suspended on one side. A 500kV suspension string is suspended from the top, and two 220kV suspension strings are suspended from the other side and the middle of the middle layer conductor cross-arm and the lower layer conductor cross-arm. 3. A new type of mixed pressure three-circuit landscape tower according to claim 1, characterized in that the suspension string is a V-shaped structure.