CN202706629U

CN202706629U - Electric transmission pole tower adopting novel crisscross-shaped grounding method

Info

Publication number: CN202706629U
Application number: CN 201220360955
Authority: CN
Inventors: 陈焰彦; 王力; 罗正帮; 朱晓鹏; 董江戎; 刘西民; 梁东跃; 于永洋; 葛宜俊; 夏新运; 杨雪锋; 李静坤
Original assignee: Anhui Huadian Engineering Consulting and Design Co Ltd
Current assignee: Anhui Huadian Engineering Consulting and Design Co Ltd
Priority date: 2012-07-19
Filing date: 2012-07-19
Publication date: 2013-01-30
Anticipated expiration: 2022-07-19

Abstract

An electric transmission pole tower adopting a novel crisscross-shaped grounding method relates to the technical field of high-voltage electric transmission lines. The electric transmission pole tower comprises a pole tower main body and a grounding device, wherein the bottom of the pole tower main body is connected with the grounding device through conductors; the grounding device is composed of a horizontal grounding body and vertical grounding bodies; the horizontal grounding body is composed of an outer frame and a cross-shaped frame, the outer frame is sleeved out of foundation main columns, four end points of the cross-shaped frame are respectively welded with middle points of four edges of the outer frame, the outer frame and the cross-shaped frame are combined to form a crisscross shape, and the vertical grounding bodies are respectively welded at the middle points of the four edges of the outer frame and at the centre point of the cross-shaped frame. Angle steel is respectively welded at the middle points of the four edges of the outer frame and at the centre point of the cross-shaped frame, so that the grounding resistance is greatly reduced. The electric transmission pole tower adopting the novel crisscross-shaped grounding method, provided by the utility model, has the advantages of avoidance of digging of grounding troughs, reduced land clearing fees, lowered difficulty in coordination of civil matters, reduced vegetation destruction and construction cost, and protection of the environment.

Description

A kind of transmission tower that adopts the novel grounded mode of matrix pattern

Technical field:

The utility model relates to the ultra-high-tension power transmission line technical field.

Background technology:

Electric power line pole tower comprises shaft tower main body and ground device, ground device is generally by band or the ring of horizontal laying, some simple ground connectoies such as the pipe of vertically burying underground or angle steel combine, horizontal laying artificial earth electrode combination form commonly used has block form at present, circular ring type, windmill type, square frame band ray type, well word frame etc., generally, the length of side of block form horizontal laying ground device will surpass 15m, the windmill type ground device housing length of side surpasses 8m, radioactive ray will surpass 4m and just can meet the demands, its size is excavated scope greater than pole and tower foundation, therefore need to outside the foundation construction scope, further excavate the ground connection groove, thereby cause following adverse effect:

1, excavation ground connection groove further destroys arable land and crop in the farmland, causes damages to increase, and civil coordination difficulty increases;

2, excavation ground connection groove advances to cause a large amount of vegetation deteriorations in the forest land, is unfavorable for environmental protection, has also increased damages simultaneously;

3, the distance shaft tower radioactive ray far away destruction of in During Process of Long-term Operation, very easily being cultivated or dig, cause the hidden danger of transmission line of electricity safe operation.

The utility model content:

The purpose of this utility model provides a kind of transmission tower that adopts the novel grounded mode of matrix pattern, and it has avoided excavation ground connection groove, thereby reduces the land clearing expense; reduce civil coordination difficulty; minimizing had both reduced construction cost to the destruction of vegetation, had protected again environment.

In order to solve the existing problem of background technology, the utility model is by the following technical solutions: it comprises shaft tower main body, ground device, the shaft tower bottom part body is connected with conductor with ground device, described ground device is made of horizontal grounding objects and Grounding Grids, wherein horizontal grounding objects is comprised of housing and cross, outer frame set places outside the basic principal post, four end points of cross weld together with the mid point on four limits of housing respectively, and described housing and cross form a sphere of movements for the elephants shape.

Described Grounding Grids is welded on respectively mid point and the cross central point on four limits of housing.

When ground device is installed, finish foundation construction, when foundation ditch partly is backfilled to and is slightly larger than 0.8m with ground distance, adopting diameter 12mm round steel to make housing is placed in outside the basic stand column, the mid point on four limits of 4 end points of cross and housing is welded together, again 5 Grounding Grids being close to vertical ground in the mid point on four limits of housing and cross central spot squeezes into downwards in the backfill earthing, and weld together with housing and cross, make conventional down conductor at housing near corner location, then continue to finish pit backfill, after tower erection is finished, well be connected with steel tower by down conductor, ground resistance is significantly reduced.

It has avoided excavation ground connection groove the utility model, thereby reduces the land clearing expense, reduces civil coordination difficulty, reduces the destruction to vegetation, has both reduced construction cost, has protected again environment.

Description of drawings:

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the top view of ground device.

The specific embodiment:

With reference to Fig. 1-2, a kind of transmission tower that adopts the novel grounded mode of matrix pattern, it comprises shaft tower main body 1, ground device 2, shaft tower main body 1 bottom is connected with ground device 2 usefulness conductors, described ground device 2 is made of horizontal grounding objects and Grounding Grids 5, wherein horizontal grounding objects is comprised of housing 3 and cross 4, housing 3 is placed on outside the basic principal post, four end points of cross 4 weld together with the mid point on four limits of housing 3 respectively, and described housing 3 forms a sphere of movements for the elephants shape with cross 4.

Described Grounding Grids 5 is welded on respectively mid point and cross 4 central points on 3 four limits of housing.

Claims

1. transmission tower that adopts the novel grounded mode of matrix pattern, it comprises shaft tower main body (1), ground device (2), shaft tower main body (1) bottom is connected with conductor with ground device (2), described ground device (2) is made of horizontal grounding objects and Grounding Grids (5), wherein horizontal grounding objects is comprised of housing (3) and cross (4), housing (3) is placed on outside the basic principal post, four end points of cross (4) weld together with the mid point on four limits of housing (3) respectively, it is characterized in that described housing (3) forms a sphere of movements for the elephants shape with cross (4).

2. a kind of transmission tower that adopts the novel grounded mode of matrix pattern according to claim 1 is characterized in that, described Grounding Grids (5) is welded on respectively mid point and cross (4) central point on (3) four limits of housing.