CN209976137U - 110kV double-loop drilling and crossing tower - Google Patents
110kV double-loop drilling and crossing tower Download PDFInfo
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- CN209976137U CN209976137U CN201821955802.8U CN201821955802U CN209976137U CN 209976137 U CN209976137 U CN 209976137U CN 201821955802 U CN201821955802 U CN 201821955802U CN 209976137 U CN209976137 U CN 209976137U
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Abstract
A110 kV double-loop crossing tower relates to the field of electric power towers. The method comprises the following steps: the tower body comprises a tower body main material, a tower body cross oblique material, tower legs and leg oblique materials connected with the tower legs; the tower body is provided with a cross arm structure which is a ground wire cross arm and a lead wire cross arm from top to bottom in sequence; the ground wire cross arm and the lead wire cross arm are symmetrically arranged on two sides of the tower body; the whole tower of the drilling crossing tower is made of angle steel. The application provides a tower is crossed to 110kV double circuit bores, including two-layer cross arm structure, be ground wire cross arm and wire cross arm respectively, can effectively reduce the total height of shaft tower. The whole tower crossing the tower is made of angle steel, the structure is simple, the processing and the manufacturing are convenient, the rigidity of the tower can be guaranteed, and the safety is guaranteed. The application provides a 110kV double-circuit bores tower more has greatly reduced the head height of iron tower, has reduced the total height of iron tower. The 110kV double-loop crossing tower provided by the application can be used for saving the corridor width, reducing the manufacturing cost and improving the environment friendliness of the engineering.
Description
Technical Field
The application relates to the technical field of electric power tower, in particular to a 110kV double-loop crossing tower.
Background
With the construction of power grids becoming more and more intensive, the 110kV power transmission line project often has the situation that the tower is drilled over other towers, and the drilling over the tower needs to keep enough clear distance and ground distance of cross crossing, so the drilling over the tower needs to be reasonably designed to ensure the safety of a power transmission grid.
At present, a plurality of 110kV common-tower double-circuit crossing towers are generally provided with three layers of cross arms, namely a ground wire cross arm, an upper wire cross arm and a middle-lower wire cross arm from top to bottom. The three-layer cross arms are vertically arranged, the tower heads of the towers are high, the construction difficulty is high, the construction engineering quantity is large, the difficulty is increased when other lines are drilled, the original transmission line needs to be transformed sometimes in order to meet the drilling and crossing requirements, the transformation cost is high, and the construction period is prolonged.
SUMMERY OF THE UTILITY MODEL
The application provides a 110kV double-circuit bores tower more to solve 110kV and bore tower head height more, the construction degree of difficulty is big, area is big problem more of tower more.
A 110kV dual-loop crossing tower, comprising: the tower body comprises a tower body main material, a tower body cross oblique material, tower legs and leg oblique materials connected with the tower legs; the tower body is provided with a cross arm structure which comprises a ground wire cross arm and a lead wire cross arm from top to bottom in sequence;
the ground wire cross arm and the lead wire cross arm are symmetrically arranged on two sides of the tower body;
the whole tower of the drilling crossing tower is made of angle steel.
Optionally, the section of the ground wire cross arm along the central axis of the tower body is a trapezoid, the upper side of the trapezoid is parallel to the horizontal plane, and the lower side of the trapezoid is shorter than the upper side of the trapezoid and is arranged in an inclined manner; the total length of the ground wire cross arm is 25.4 m.
Optionally, two sides of the ground wire cross arm are provided with two hanging wire holes; the distance between the first wire hanging hole and the central axis of the tower body is 6.45m, and the distance between the second wire hanging hole and the central axis of the tower body is 12.7 m.
Optionally, the cross-section of the wire cross arm along the central axis of the tower body is a trapezoid, a side edge of the trapezoid, which is far away from the central axis of the tower body, is parallel to the central axis, and a lower edge of the trapezoid is parallel to a horizontal plane; the total length of the wire cross arm is 27 m.
Optionally, two sides of the wire cross arm are provided with three hanging wire holes; the distance between the first wire hanging hole and the central axis of the tower body is 4.1m, the distance between the second wire hanging hole and the central axis of the tower body is 8.8m, and the distance between the third wire hanging hole and the central axis of the tower body is 13.5 m.
Optionally, the vertical distance between the slope change position and the wire cross arm is 3 m.
Optionally, the cross section of the tower body above the slope change position is square, and the width of the tower body at the slope change position is 2.6 m.
Optionally, the total height of the drilling tower is 14-20 m.
The technical scheme provided by the application comprises the following beneficial technical effects:
compared with the prior art, a 110kV double-circuit drilling tower comprises: the tower body comprises a tower body main material, a tower body cross oblique material, tower legs and leg oblique materials connected with the tower legs; the tower body is provided with a cross arm structure which is a ground wire cross arm and a lead wire cross arm from top to bottom in sequence; the ground wire cross arm and the lead wire cross arm are symmetrically arranged on two sides of the tower body; the whole tower of the drilling crossing tower is made of angle steel. The application provides a tower is crossed to 110kV double circuit brill, including two-layer cross arm structure, be ground wire cross arm and wire cross arm respectively, the tower head height is 5 m. Each side of ground wire cross arm all is equipped with two string line points, and each side of wire cross arm all is equipped with three string line point. The whole tower crossing the tower is made of angle steel, the tower plate is high in efficiency, simple in structure and convenient to machine and manufacture, the rigidity of the tower can be guaranteed, and safety is guaranteed. The application provides a 110kV two return circuits are bored tower more and are only one deck ground wire cross arm and one deck wire cross arm, and three-phase conductor is hung to wire cross arm one side, has greatly reduced the head height of iron tower, has reduced the total height of iron tower. The 110kV double-loop crossing tower provided by the application can be used for saving the corridor width, reducing the manufacturing cost and improving the environment friendliness of the engineering.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without any creative effort.
Fig. 1 is a schematic structural diagram of a 110kV double-circuit drilling tower according to an embodiment of the present application.
Description of reference numerals:
1. a tower body main material; 2. crossing oblique materials of the tower body; 3. tower legs; 4. leg diagonal members; 5. a ground wire cross arm; 6. a wire cross arm; 7. and (5) changing slopes.
Detailed Description
Referring to fig. 1, a structure of a 110kV double-circuit drilling tower provided in an embodiment of the present application is shown.
A110 kV double-circuit drilling tower is characterized by comprising: the tower body comprises a tower body main material 1, a tower body cross inclined material 2, tower legs 3 and leg inclined materials 4 connected with the tower legs 3; the tower body is provided with a cross arm structure which is a ground wire cross arm 5 and a lead wire cross arm 6 from top to bottom in sequence; the ground wire cross arm 5 and the lead wire cross arm 6 are symmetrically arranged on two sides of the tower body; the whole tower of the drilling crossing tower is made of angle steel.
The 110kV double-circuit that this application embodiment provided bores tower more, including two-layer cross arm structure, from the top down be ground wire cross arm and wire cross arm in proper order, bore tower more and all adopt the angle steel preparation, the used steel grade of shaft tower component is Q235B, Q345B and Q420B, and all components of shaft tower, including bolt, foot nail, packing ring etc. all adopt hot dip galvanizing anticorrosive, in order to improve the durability of shaft tower in life cycle, improve life, guarantee shaft tower security.
As shown in fig. 1, the tower body comprises three parts, wherein the upper section is in a trapezoidal column shape, the horizontal section of the section is in a square shape, and the area of the square on the upper part is slightly smaller than that of the square on the lower part; the interruption is in a trapezoidal column shape, the interruption is connected with the upper section through a slope change part 7, the horizontal section of the section is square, and the area of the square at the upper part is smaller than that of the square at the lower part; the lower end is a splayed tower leg 3.
According to the 110kV double-loop crossing tower provided by the embodiment of the application, the tower body main materials 1 are connected through the tower body cross inclined materials 2, and two cross tower body cross inclined materials 2 are arranged between every two tower body main materials 1 where the ground wire cross arm 5 is located; more than two tower body crossed inclined materials 2 are arranged between every two tower body main materials 1 where the wire cross arm 6 is located to form a plurality of triangular units so as to enhance the rigidity of the tower. A plurality of tower body cross oblique materials 2 and leg oblique materials 4 are arranged between the main tower body materials 1 and between the tower legs 3 below the cross arm structure to form a plurality of triangular units.
As shown in fig. 1, the ground wire cross arm 5 and the wire cross arm 6 are both symmetrical structures using the central axis of the tower body as a symmetry axis, and both have a common connection point on the tower body, and only one node connection part is arranged at the connection point, so that the cost input and the construction difficulty can be reduced, and the construction efficiency can be improved.
The tower member connection mainly takes bolt connection as a main part, and the tower member connection and the tower foot plate are connected in a welding connection mode.
The 110kV double-circuit that this application embodiment provided bores tower more, including two-layer cross arm structure, can effectively reduce, tower head height to reduce the height of shaft tower, guarantee that transmission line bores normal, the safe of being under construction more and go on. And the whole tower of the tower is made of angle steel, so that the tower plate has the advantages of simple structure and convenience in processing and manufacturing. All components of the tower are subjected to hot-dip galvanizing and corrosion prevention, so that the durability of the tower can be improved, and the safety of the tower is ensured. The application provides a 110kV two return circuits bore tower more only one deck ground wire cross arm and one deck wire cross arm, and three-phase conductor is hung to wire cross arm one side, uses the 110kV two return circuits that this application provided to bore tower more, can save corridor width, reduce the cost, improves the environment friendly nature of engineering.
Optionally, the section of the ground wire cross arm 5 along the central axis of the tower body is a trapezoid, the upper side of the trapezoid is parallel to the horizontal plane, and the lower side of the trapezoid is shorter than the upper side of the trapezoid and is arranged in an inclined manner; the total length of the ground cross-arm 5 is 25.4 m.
As shown in fig. 1, the section of the ground wire cross arm 5 along the central axis of the tower body is a trapezoid, wherein the upper side is parallel to the horizontal plane; the first side edge close to one side of the tower body is a part of the main tower body material 1; the lower edge opposite to the upper edge is obliquely arranged and is shorter than the upper edge in length; the second side edge far away from one side of the tower body is connected with the upper edge and the lower edge.
Crossed angle steel is arranged in the first unit of the ground wire cross arm 5, namely the part close to the tower body to connect the upper side and the lower side; other units, i.e. the other part away from the tower, are provided with only a single inclined angle connecting the upper and lower edges. Here, the unit is bounded by vertically disposed angle iron.
The total height of the ground wire cross arm 5 is up to 2m, and the total length is up to 25.4 m.
Optionally, two sides of the ground wire cross arm 5 are provided with two hanging wire holes; the distance between the first wire hanging hole and the central axis of the tower body is 6.45m, and the distance between the second wire hanging hole and the central axis of the tower body is 12.7 m.
Two sides of the ground wire cross arm 5 are provided with two hanging wire holes, and the distance between each hanging wire hole and the central axis of the tower body is 6.45m and 12.7m respectively so as to meet the requirements of lightning protection, electrical clearance, electromagnetic environment and insulation distance.
Optionally, the cross arm 6 is an irregular quadrangle in cross section along the central axis of the tower body, the side of the irregular quadrangle far away from the central axis of the tower body is parallel to the central axis, and the lower side of the irregular quadrangle is parallel to the horizontal plane; the total length of the wire cross arm 6 is 27 m.
As shown in fig. 1, the cross arm 6 has a trapezoid cross section along the central axis of the tower body, wherein the lower side is parallel to the horizontal plane; the first side edge close to one side of the tower body is a part of the main tower body material 1; the upper side opposite to the lower side is obliquely arranged and is longer than the lower side in length, and one end of the upper side and the ground wire cross arm 5 are provided with a common connection point; keep away from the second side of tower body one side and be parallel with the axis, connect the higher authority and the lower side, the height on second side is 1 m.
The first unit of the wire cross arm 6, namely the part close to the tower body, is provided with crossed angle steel to form a plurality of triangular units so as to enhance the rigidity of the tower; other units, namely, the other part far away from the tower body is provided with crossed angle steel for connecting the upper side and the lower side.
The wire cross arm 6 is up to 3m in total and 27m in total.
Optionally, three hanging wire holes are formed in two sides of the wire cross arm 6; the distance between the first wire hanging hole and the central axis of the tower body is 4.1m, the distance between the second wire hanging hole and the central axis of the tower body is 8.8m, and the distance between the third wire hanging hole and the central axis of the tower body is 13.5 m.
Different from the prior art, the 110kV double-circuit tower that gets across is bored to this application embodiment, respectively sets up three string hole on the wire cross arm 6 of both sides, and the distance of hanging the line hole apart from body of the tower axis is 4.1m, 8.8m and 12.7m respectively to satisfy lightning protection requirement, electric clearance requirement, electromagnetic environment requirement, insulating distance requirement.
Optionally, the vertical distance between the slope change part 7 and the wire cross arm 6 is 3 m.
In order to meet the requirements of lightning protection, electrical clearance, electromagnetic environment and insulation distance, the distance between the slope change part 7 and the wire cross arm 6 in the vertical direction is 3 m.
Optionally, the cross section of the tower body above the variable slope 7 is square, and the width of the tower body of the variable slope 7 is 2.6 m.
As shown in fig. 1, in the 110kV double-circuit drilling tower provided in the embodiment of the present application, the upper section is a trapezoidal column, which is bounded by the slope-changing portion 7, the width of the tower body at the upper portion of the upper section is 2.0m, and the width of the tower body at the slope-changing portion 7 is 2.6 m.
Optionally, the total height of the drilling tower is 14-20 m.
The 110kV double-loop crossing tower provided by the embodiment of the application has the total height range of 14-20 m. According to the construction situation, when the lowest breath height is 9m, the root of the tower is 4.28m, and the total height of the tower is 14 m; when the highest breath height is 15m, the root of the tower is 5.96m, and the total height of the tower is 20 m.
The 110kV double-circuit that this application embodiment provided bores tower more, and the both sides of ground wire cross arm 5 respectively are equipped with two hanging wire points, and the both sides of wire cross arm 6 respectively are equipped with three hanging wire point, only set up two-layer cross arm, can effectively reduce tower head height to control the full height of shaft tower in control range, guaranteed the security of transmission line when boring more. Meanwhile, the whole tower is made of angle steel materials, so that the tower plate has the advantages of being simple in structure and convenient to process and manufacture. All components of the tower are subjected to hot-dip galvanizing and corrosion prevention, so that the durability of the tower can be improved, and the safety of the tower is ensured. The application provides a 110kV two return circuits bore tower more only one deck ground wire cross arm and one deck wire cross arm, and three-phase wire is hung to wire cross arm one side, uses the 110kV two return circuits that this application provided to bore tower more, can save the corridor width, alleviates the land used nervous, reduces the cost, improves the environment friendly nature of engineering.
It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
It is to be understood that the present application is not limited to what has been described above, and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.
Claims (8)
1. A110 kV double-circuit drilling tower is characterized by comprising: the tower body comprises a tower body main material (1), a tower body cross inclined material (2), tower legs (3) and leg inclined materials (4) connected with the tower legs (3); the tower body is provided with a cross arm structure which is a ground wire cross arm (5) and a lead wire cross arm (6) from top to bottom in sequence;
the ground wire cross arm (5) and the wire cross arm (6) are symmetrically arranged on two sides of the tower body, and three wire hanging holes are formed in two sides of the wire cross arm (6);
the whole tower of the drilling crossing tower is made of angle steel.
2. The double-circuit drilling tower according to claim 1, wherein the section of the ground wire cross arm (5) along the central axis of the tower body is a trapezoid, the upper side of the trapezoid is parallel to the horizontal plane, and the lower side of the trapezoid is shorter than the upper side of the trapezoid and is obliquely arranged; the total length of the ground wire cross arm (5) is 25.4 m.
3. The double-circuit crossing tower according to claim 2, wherein two hanging wire holes are arranged on both sides of the ground wire cross arm (5); the distance between the first wire hanging hole and the central axis of the tower body is 6.45m, and the distance between the second wire hanging hole and the central axis of the tower body is 12.7 m.
4. The double-circuit drilling tower according to claim 1, wherein the cross arm (6) is trapezoid along the central axis of the tower body, the side of the trapezoid away from the central axis of the tower body is parallel to the central axis, and the lower side of the trapezoid is parallel to the horizontal plane; the total length of the wire cross arm (6) is 27 m.
5. The double loop crossing tower according to claim 4, wherein three string hanging holes are provided on both sides of the wire cross arm (6): the distance between the first wire hanging hole and the central axis of the tower body is 4.1m, the distance between the second wire hanging hole and the central axis of the tower body is 8.8m, and the distance between the third wire hanging hole and the central axis of the tower body is 13.5 m.
6. Double loop crossing tower according to claim 1, characterized in that the vertical distance of the ramp (7) to the wire cross arm (6) is 3 m.
7. The dual circuit drilling tower according to claim 6, wherein the cross section of the tower body above the grade change (7) is square, and the width of the tower body at the grade change (7) is 2.6 m.
8. The dual circuit drill tower of claim 1 wherein the drill tower has an overall height of from 14 to 20 m.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821955802.8U CN209976137U (en) | 2018-11-26 | 2018-11-26 | 110kV double-loop drilling and crossing tower |
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| CN201821955802.8U CN209976137U (en) | 2018-11-26 | 2018-11-26 | 110kV double-loop drilling and crossing tower |
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| CN209976137U true CN209976137U (en) | 2020-01-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109356429A (en) * | 2018-11-26 | 2019-02-19 | 中国能源建设集团陕西省电力设计院有限公司 | A kind of double loop 110kV, which is bored, gets over tower |
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2018
- 2018-11-26 CN CN201821955802.8U patent/CN209976137U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109356429A (en) * | 2018-11-26 | 2019-02-19 | 中国能源建设集团陕西省电力设计院有限公司 | A kind of double loop 110kV, which is bored, gets over tower |
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