CN110259252A - A kind of 110 kilovolts are bored across dual-purpose anchor support - Google Patents

Abstract

The invention relates to the field of transmission line towers, in particular to a 110 kV drill-span dual-purpose tension tower, which includes tower legs and a tower body arranged on the tower legs, and is characterized in that: the tower body is respectively arranged from top to bottom There are upper road cross arm and lower road cross arm, the upper road cross arm is composed of upper ground wire cross arm, upper upper phase wire cross arm and upper lower phase wire cross arm arranged from top to bottom, the lower layer The road cross arm is composed of the lower ground wire cross arm, the lower upper phase conductor cross arm and the lower lower phase conductor cross arm arranged from top to bottom. The uniqueness of the present invention lies in that when encountering a line that needs to be drilled or crossed, there is no need to build a new pole tower, but to use the vertical height of the pole tower itself under the premise of ensuring a safe electrical clearance, to realize the spanning by the cross arm of the upper layer. The cross arm of the lower road can realize drilling, which can not only avoid the land occupation of the new tower, but also can adapt to various working conditions and has a wide range of applications.

Description

A 110 kV drill-span dual-purpose strain tower

technical field

The invention relates to the field of transmission line towers, in particular to a 110 kV drill-span dual-purpose tension tower.

Background technique

With the vigorous development of electric power construction, the corridors of line paths are becoming more and more tense. Considering the factors of urban planning, some high-voltage lines often run along parallel lines such as existing expressways and railways. If new lines cross the original lines, they often face demand. In two adjacent consecutive gears, one gear crosses the original high-voltage line, and the other gear crosses the expressway or railway. In order to ensure the safe distance of drilling and crossing the safe distance, the conventional practice in the past is to use a low-profile special tower for drilling and then use a high straight tower to raise the height of the conductor of the adjacent gear to cross the highway or railway. The clear span and tower layout requirements are relatively strict, and there are many conditions subject to on-site constraints. Under extreme conditions, it is even necessary to change to a cable scheme for unified drilling, which brings problems such as complex engineering construction schemes and high investment costs.

Contents of the invention

The purpose of the present invention is to provide a 110 kV drill-span dual-purpose strain tower. When encountering a line that needs to be drilled or crossed, it is not necessary to build a new tower, but to use the vertical structure of the tower itself under the premise of ensuring a safe electrical clearance. Highly realize drilling or crossing.

The technical solution for realizing the purpose of the present invention is: a 110 kV drill-span dual-purpose tension tower, including tower legs and a tower body arranged on the tower legs, characterized in that: the tower body is respectively provided with The upper road cross arm and the lower road cross arm, the upper road cross arm is composed of the upper ground wire cross arm, the upper upper phase wire cross arm and the upper lower phase wire cross arm arranged from top to bottom, the lower road The cross arm is composed of the lower ground wire cross arm, the lower upper phase wire cross arm and the lower lower phase wire cross arm arranged from top to bottom.

Moreover, it has an upper ground wire and a lower ground wire, the upper ground wire is connected to the upper ground wire cross arm through a tension string, and the lower ground wire is connected to the lower ground wire cross arm through a tension string.

Moreover, the upper road cross arm is provided with an upper road three-phase wire, and the upper road three-phase wire is composed of a first upper phase wire, a first lower phase inner wire and a first lower phase outer wire. An upper-phase conductor is connected to the cross-arm of the upper-layer upper-phase conductor through a tension string, and the first lower-phase inner conductor and the first lower-phase outer conductor are respectively connected to the inner and outer sides of the upper-layer lower-phase conductor cross-arm through a strain-resistant string , the three-phase conductors of the upper road are arranged in a triangle, the three-phase conductors of the lower road are arranged on the cross arm of the lower road, and the three-phase conductors of the lower road are composed of the second upper phase conductor and the second lower phase inner conductor and the second lower phase outer wire, the second upper phase wire is connected to the lower layer upper phase wire crossarm through the tension string, and the second lower phase inner wire and the second lower phase outer wire are respectively connected through the tension string It is connected with the inner side and the outer side of the crossarm of the lower phase conductor of the lower layer, and the three-phase conductors of the lower layer are arranged in a triangle.

Moreover, the first upper phase wire communicates with the second upper phase wire through the first wire connection, and the first wire connection is drawn from the second upper phase wire, and passes through a set on the tower body and the upper upper phase wire cross arm. The series of support insulators are vertically led up, and then jump from the side of the tower body to the side where the upper road cross arm is located through the jumper string connected to the upper ground wire cross arm, and finally connect with the first phase conductor set on the upper phase wire cross arm. An upper phase wire connection.

And the inner wire of the first lower phase is communicated with the inner wire of the second lower phase through the second wire connection, and the second wire connection is drawn from the inner wire of the second lower phase, and is arranged on the cross arm of the lower phase wire of the upper layer and the upper layer of the lower layer. A series of supporting insulators on the cross arm of the phase conductor and the ground wire of the lower layer are led upward, and finally connected with the first lower phase inner conductor arranged on the lower phase conductor cross arm of the upper layer.

Moreover, the first lower phase outer wire is connected to the second lower phase outer wire through the third wire connection. The insulator is led up, and finally connected with the first lower phase outer conductor arranged on the lower phase conductor cross arm of the upper layer.

The advantage of the present invention is that when encountering a line that needs to be drilled or crossed, there is no need to build a new tower, but to use the vertical height of the tower itself under the premise of ensuring a safe electrical clearance, the cross arm of the upper road is used to cross, and the lower road The cross-arm realizes over-drilling, which can not only avoid land occupation for new towers, but also can adapt to various working conditions and has a wide range of applications.

Description of drawings

Figure 1 is the front view of the 110 kV drill-span dual-purpose strain tower;

Fig. 2 is the rear view of the 110 kV drill-span dual-purpose strain tower;

Figure 3 is the right view of the 110 kV drill-span dual-purpose strain tower.

Detailed ways

Referring to Figs. 1-3, the present invention will be further described below in conjunction with the embodiments.

The present invention relates to the field of power transmission line towers, in particular to a 110 kV drill-span dual-purpose tension tower, which includes a tower leg 13 and a tower body 14 arranged on the tower leg 13, and is characterized in that: the tower body 14 is composed of The upper road cross arm and the lower road cross arm are respectively arranged from top to bottom. The upper road cross arm is composed of upper ground wire cross arm 1.1, upper upper phase wire cross arm 1.2 and upper lower phase wire cross arm arranged from top to bottom. Composed of 1.3, the lower road cross arm is composed of the lower ground wire cross arm 2.1, the lower upper phase wire cross arm 2.2 and the lower lower phase wire cross arm 2.3 arranged from top to bottom.

When encountering a line that needs to be drilled or crossed, there is no need to build a new tower, but to use the vertical height of the tower itself under the premise of ensuring a safe electrical clearance, the cross arm of the upper layer is used to achieve crossing, and the cross arm of the lower layer is used to achieve drilling. It can not only avoid land occupation for new towers, but also can adapt to various working conditions and has a wide range of applications.

And there are upper ground wires 9 and lower ground wires 10, the upper ground wires are connected to the upper ground wire cross arm 1.1 through the tension string 15, and the lower ground wires 10 are connected to the lower ground wires through the tension strings 15 Crossarm 2.1 upper.

Both the upper ground wire 9 and the lower ground wire 10 are connected to the cross arm through the tension string 15, which ensures a reasonable electrical distance between them and the tower body.

A further technical solution may be that the upper road crossarm is provided with an upper road three-phase wire, and the upper road three-phase wire is composed of the first upper phase wire 3, the first lower phase inner wire 6.1 and the first lower phase wire. The outer wire 6.2 is composed of the first upper phase wire 3 connected to the upper upper phase wire cross arm 1.2 through the tension string 15, and the first lower phase inner wire 6.1 and the first lower phase outer wire 6.2 are connected through the tension string 15 are respectively connected to the inner side and the outer side of the upper and lower phase wire crossarm 1.3, the upper layer three-phase wires are arranged in a triangle, the lower layer three-phase wires are arranged on the lower layer cross arm, and the lower layer three-phase wires The phase conductors are composed of the second upper phase conductor 4, the second lower phase inner conductor 7.1 and the second lower phase outer conductor 7.2, the second upper phase conductor 4 is connected to the upper phase conductor cross arm 2.2 of the lower layer through the tension string 15, The second lower phase inner conductor 7.1 and the second lower phase outer conductor 7.2 are respectively connected to the inner side and outer side of the lower lower phase conductor crossarm 2.3 through the tension string 15, and the lower three-phase conductors are arranged in a triangle.

The respective lower-phase conductors of the double circuits in the drill-over gear are jump-connected to the side of the spanning gear at the bottom cross-arm, and then connected to the respective lower-phase wires of the double-circuits of the spanning gear through wire connections to realize the crossing; The upper-phase wires of the upper-phase wires are led up on the same side through the support insulator 12 provided by the tower body 14, and then jump to the side of the spanning gear through the wire connection, and are connected to the respective upper-phase wires of the double circuits to realize the spanning.

The three-phase conductors of the upper and lower roads are arranged in a triangle, which can effectively compress the vertical height of the tower and reduce the bending moment at the root of the tower while ensuring a safe distance.

And the first upper phase wire 3 communicates with the second upper phase wire 4 through the first wire connection 5. A series of supporting insulators 12 on the wire cross arm 1.2 are vertically led up, and then jump from the side of the tower body to the side where the upper road cross arm is located via the jumper string 11 connected to the upper ground wire cross arm 1.1, and finally connect with the setting The first upper phase wire 3 on the upper layer upper phase wire cross arm 1.2 is connected.

The first upper-phase conductor 3 communicates with the second upper-phase conductor 4 through the first conductor connecting line 5 to realize crossover.

A further technical solution may also be that the first lower-phase inner wire 6.1 communicates with the second lower-phase inner wire 7.1 through the second wire connection 8.1, and the second wire connection 8.1 is drawn from the second lower-phase inner wire 7.1, and passes through A series of support insulators 12 set on the upper lower phase conductor cross arm 1.3, the lower upper phase conductor cross arm 2.2 and the lower ground wire cross arm 2.1 lead up, and finally connect with the first lower insulator set on the upper lower phase conductor cross arm 1.3. Phase inside wire 6.1 connection.

The inner wire 6.1 of the first lower phase communicates with the inner wire 7.1 of the second lower phase through the second wire connection 8.1 to realize crossover.

Moreover, the first lower phase outer wire 6.2 communicates with the second lower phase outer wire 7.2 through the third lower phase outer wire 8.2. The supporting insulator 12 on the cross arm 2.3 leads upwards, and finally connects with the first lower phase outer conductor 6.2 arranged on the lower phase conductor cross arm 1.3 of the upper layer.

The outer conductor 6.2 of the first lower phase communicates with the outer conductor 7.2 of the second lower phase through the third conductor connecting line 8.2 to realize crossover.

The present invention has applied for a utility model patent on the same subject on the same day.

Claims (6)

1. a kind of 110 kilovolts are bored across dual-purpose anchor support, including tower leg and the tower body being arranged on tower leg, it is characterised in that: described Overlying roaduay cross-arm and lower layer's road cross-arm are from top to bottom respectively arranged on tower body, the overlying roaduay cross-arm by arranging from top to bottom Upper layer ground wire cross-arm, phase conductor cross-arm forms under phase conductor cross-arm and upper layer on upper layer, lower layer's road cross-arm is by from upper And phase conductor cross-arm forms under phase conductor cross-arm and lower layer on lower layer's ground wire cross-arm of lower arrangement, lower layer.

2. it is according to claim 1 it is a kind of 110 kilovolts bore across dual-purpose anchor support, it is characterised in that: have upper layer ground wire and Lower layer's ground wire, the upper layer ground wire are connected on the ground wire cross-arm of upper layer by strain insulator-string, and lower layer's ground wire passes through strain insulator String is connected on lower layer's ground wire cross-arm.

3. a kind of 110 kilovolts according to claim 1 are bored across dual-purpose anchor support, it is characterised in that: the overlying roaduay is horizontal Load is equipped with overlying roaduay three-phase conducting wire, the overlying roaduay three-phase conducting wire by phase conductor on first, the first lower phase inboard wire and First lower phase outboard wire forms, and phase conductor is connect by strain insulator-string with phase conductor cross-arm on upper layer on described first, described First lower phase inboard wire and the first lower phase outboard wire by strain insulator-string respectively with the inside of phase conductor cross-arm under upper layer and outer Side connection, the overlying roaduay three-phase conducting wire are triangularly arranged, and lower layer's road cross-arm is equipped with lower layer road three-phase conducting wire, Lower layer's road three-phase conducting wire is made of phase conductor, the second lower phase inboard wire and the second lower phase outboard wire on second, institute It states phase conductor on second to connect by strain insulator-string with phase conductor cross-arm in lower layer, under the described second lower phase inboard wire and second Phase outboard wire is connect with the inside and outside of phase conductor cross-arm under lower layer respectively by strain insulator-string, and lower layer's road three-phase is led Line is triangularly arranged.

4. a kind of 110 kilovolts according to claim 3 are bored across dual-purpose anchor support, it is characterised in that: phase conductor is logical on first Phase conductor connection on the first conducting wire line and second is crossed, which draws from phase conductor from second, via setting In a series of supporting insulator vertical drawings on tower body and upper layer on phase conductor cross-arm, then via being connected to upper layer ground wire cross-arm On side of the jumper string from tower body side where skipping to overlying roaduay cross-arm, finally be arranged on upper layer on phase conductor cross-arm First on phase conductor connection.

5. a kind of 110 kilovolts according to claim 3 are bored across dual-purpose anchor support, it is characterised in that: led on the inside of the first lower phase Line is connected to by the second conducting wire line with the second lower phase inboard wire, which draws from phase inboard wire under second Out, a series of supports by the way that phase conductor cross-arm under upper layer is arranged in, in lower layer on phase conductor cross-arm and lower layer's ground wire cross-arm are exhausted Edge draws, and finally connect with the first lower phase inboard wire being arranged under upper layer on phase conductor cross-arm.

6. a kind of 110 kilovolts according to claim 3 are bored across dual-purpose anchor support, it is characterised in that: led on the outside of the first lower phase Line is connected to by privates line with the second lower phase outboard wire, which draws from phase outboard wire under second Out, drawn by the supporting insulator being arranged under lower layer on phase conductor cross-arm, finally be arranged under upper layer phase conductor cross-arm On the first lower phase outboard wire connection.