CN109356429B - A 110kV double circuit tower drilling - Google Patents
A 110kV double circuit tower drilling Download PDFInfo
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- CN109356429B CN109356429B CN201811419228.9A CN201811419228A CN109356429B CN 109356429 B CN109356429 B CN 109356429B CN 201811419228 A CN201811419228 A CN 201811419228A CN 109356429 B CN109356429 B CN 109356429B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/02—Structures made of specified materials
- E04H12/08—Structures made of specified materials of metal
- E04H12/10—Truss-like structures
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Abstract
一种110kV双回路钻越塔，涉及电力杆塔领域。包括：塔身，塔身包括塔身主材、塔身交叉斜材、塔腿以及连接塔腿的腿部斜材；塔身上设有横担结构，由上至下依次为地线横担、导线横担；地线横担、导线横担均对称设置在塔身两侧；钻越塔全塔采用角钢制作。本申请提供的110kV双回路钻越塔，包括两层横担结构，分别为地线横担和导线横担，能够有效降低杆塔的总高。钻越塔全塔均采用角钢制作，结构简单，加工制造方便，而且能够保证杆塔刚度，保证安全性。本申请提供的110kV双回路钻越塔极大了缩减了铁塔的头部高度，降低了铁塔的总高。使用本申请提供的110kV双回路钻越塔，能够节省走廊宽度、降低造价，提高工程的环境友好性。
A 110kV double-circuit drilling tower relates to the field of power pole towers. It comprises: a tower body, the tower body comprises a tower body main material, a tower body cross diagonal material, a tower leg and a leg diagonal material connecting the tower legs; a cross arm structure is provided on the tower body, which is a ground wire cross arm and a conductor cross arm from top to bottom; the ground wire cross arm and the conductor cross arm are symmetrically arranged on both sides of the tower body; the entire drilling tower is made of angle steel. The 110kV double-circuit drilling tower provided in the present application comprises a two-layer cross arm structure, namely a ground wire cross arm and a conductor cross arm, which can effectively reduce the total height of the pole tower. The entire drilling tower is made of angle steel, which has a simple structure, is easy to process and manufacture, and can ensure the rigidity of the pole tower and ensure safety. The 110kV double-circuit drilling tower provided in the present application greatly reduces the head height of the iron tower and reduces the total height of the iron tower. Using the 110kV double-circuit drilling tower provided in the present application can save corridor width, reduce construction costs, and improve the environmental friendliness of the project.
Description
Technical Field
The application relates to the technical field of power towers, in particular to a 110kV double-loop drilling tower.
Background
As the power grid construction becomes denser, the situation of drilling other towers often exists in 110kV power transmission line engineering, and the drilling towers need to keep enough clear distance and ground distance of crossing, so the drilling towers need to be reasonably designed to ensure the safety of the power transmission power grid.
Currently, a plurality of 110kV same-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 and lower wire cross arm from top to bottom. The three layers of cross arms are vertically arranged, the tower head of the tower is higher, the construction difficulty is high, the construction engineering quantity is large, the difficulty is increased when other lines are drilled, the original power transmission line is sometimes required to be modified in order to meet the drilling requirements, the modification cost is high, and the construction period is prolonged.
Disclosure of Invention
The application provides a 110kV double-loop drilling tower, which aims to solve the problems of high tower head, high construction difficulty and large occupied area of the 110kV drilling tower.
A 110kV dual-loop drilling tower comprising: the tower body comprises a main tower body material, a cross tower body inclined material, tower legs and leg inclined materials connected with the tower legs; the tower body is provided with a cross arm structure, and a ground wire cross arm and a wire cross arm are sequentially arranged from top to bottom;
The ground wire cross arms and the lead cross arms are symmetrically arranged on two sides of the tower body;
The drilling tower Quan Da 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 edge of the trapezoid is parallel to the horizontal plane, and the lower edge of the trapezoid is shorter than the upper edge and is obliquely arranged; the total length of the ground wire cross arm is 25.4m.
Optionally, two hanging wire holes are formed on two sides of the ground wire cross arm; the first wire hanging hole is 6.45m away from the central axis of the tower body, and the second wire hanging hole is 12.7m away from the central axis of the tower body.
Optionally, the cross arm of the wire is a trapezoid along the central axis of the tower body, the side edge of the trapezoid far away from the central axis of the tower body is parallel to the central axis, and the lower edge of the trapezoid is parallel to the horizontal plane; the total length of the wire cross arm is 27m.
Optionally, three wire hanging holes are formed in two sides of the wire cross arm; the first wire hanging hole is 4.1m away from the central axis of the tower body, the second wire hanging hole is 8.8m away from the central axis of the tower body, and the third wire hanging hole is 13.5m away from the central axis of the tower body.
Optionally, the vertical distance between the slope changing position and the wire cross arm is 3m.
Optionally, the cross section of the tower body above the variable slope is square, and the width of the tower body at the variable slope is 2.6m.
Optionally, the total height of the drilling tower is 14-20 m.
The technical scheme provided by the application has the following beneficial technical effects:
Compared with the prior art, a 110kV double-circuit drilling tower comprises: the tower body comprises a main tower body material, a cross inclined tower body material, tower legs and leg inclined materials connected with the tower legs; the tower body is provided with a cross arm structure, and a ground wire cross arm and a wire cross arm are sequentially arranged from top to bottom; the ground wire cross arms and the lead cross arms are symmetrically arranged at two sides of the tower body; the drilling tower Quan Da is made of angle steel. The 110kV double-loop crossing tower provided by the application comprises a two-layer cross arm structure, namely a ground wire cross arm and a lead cross arm, wherein the height of the tower head is 5m. Each side of the ground wire cross arm is provided with two hanging wire points, and each side of the lead cross arm is provided with three hanging wire points. The drilling tower Quan Da is made of angle steel, the tower plate is high in efficiency, simple in structure and convenient to process and manufacture, rigidity of the tower can be guaranteed, and safety is guaranteed. The 110kV double-loop crossing tower provided by the application has only one layer of ground wire cross arm and one layer of wire cross arm, and three-phase wires are hung on one side of the wire cross arm, so that the head height of the iron tower is greatly reduced, and the total height of the iron tower is reduced. The 110kV double-loop drilling tower provided by the application can save the width of a corridor, reduce the manufacturing cost and improve the environmental friendliness of engineering.
Drawings
In order to more clearly illustrate the technical solution of the present application, the drawings that are needed in the embodiments will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a schematic diagram of a 110kV double-loop drilling tower according to an embodiment of the present application.
Reference numerals illustrate:
1. a main tower body material; 2. the tower body is crossed with the inclined material; 3. a tower leg; 4. leg inclined materials; 5. a ground wire cross arm; 6. a wire cross arm; 7. and a slope is changed.
Detailed Description
Referring to fig. 1, a structure of a 110kV double-loop drilling tower according to an embodiment of the present application is shown.
A 110kV dual circuit drilling tower, comprising: the tower body comprises a main tower body material 1, a cross tower body 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 sequentially provided with a ground wire cross arm 5 and a lead cross arm 6 from top to bottom; the ground wire cross arms 5 and the lead cross arms 6 are symmetrically arranged at two sides of the tower body; the drilling tower Quan Da is made of angle steel.
The 110kV double-loop crossing tower provided by the embodiment of the application comprises a two-layer cross arm structure, wherein a ground wire cross arm and a lead cross arm are sequentially arranged from top to bottom, the crossing tower Quan Da is made of angle steel, the steel types used for tower components are Q235B, Q345B and Q420B, and all components of the tower, including bolts, spikes, gaskets and the like, are galvanized and corrosion-resistant, so that the durability of the tower in the service period is improved, the service life is prolonged, and the safety of the tower is ensured.
As shown in fig. 1, the tower body comprises three parts, the upper section is in a trapezoid column shape, the horizontal section of the section is square, and the square area at the upper part is slightly smaller than the square area at the lower part; the interruption is in a trapezoid column shape, the interruption is connected with the upper section through a slope changing part 7, the horizontal section of the section is square, and the square area at the upper part is smaller than the square area at the lower part; the lower end is a splayed tower leg 3.
According to the 110kV double-loop drilling tower provided by the embodiment of the application, main tower materials 1 are connected through the cross tower materials 2, and two cross tower body cross inclined materials 2 which are crossed are arranged between every two main tower materials 1 where a ground wire cross arm 5 is positioned; the wire cross arm 6 is arranged between every two tower body main materials 1, and more than two tower body cross inclined materials 2 are arranged to form a plurality of triangle units so as to strengthen the rigidity of the tower. And a plurality of tower body crossed inclined materials 2 and leg inclined materials 4 are arranged between the tower body main materials 1 and the tower legs 3 below the cross arm structure to form a plurality of triangle units.
As shown in fig. 1, the ground wire cross arm 5 and the wire cross arm 6 are symmetrical structures with the central axis of the tower body as a symmetrical axis, and are provided with a common connection point on the tower body, and the connection point is provided with a node connection part, so that the cost input and the construction difficulty can be reduced, and the construction efficiency can be improved.
The connection of the tower components is mainly based on the connection of bolts, and the connection of the tower components and the tower foot plate adopts a welding connection mode.
The 110kV double-loop crossing tower provided by the embodiment of the application comprises a two-layer cross arm structure, and can effectively reduce the height of the tower head, thereby reducing the height of the tower and ensuring the normal and safe proceeding of crossing construction of a power transmission line. And, shaft tower Quan Da all adopts the angle steel preparation, and the column plate effect, simple structure, processing manufacturing is convenient. All components of the tower are galvanized and corrosion-resistant, so that the durability of the tower can be improved, and the safety of the tower is ensured. The 110kV double-loop crossing tower provided by the application has only one layer of ground wire cross arm and one layer of wire cross arm, and one side of the wire cross arm is hung with a three-phase wire.
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 obliquely arranged; the total length of the ground crossarm 5 is 25.4m.
As shown in fig. 1, the section of the ground wire cross arm 5 along the central axis of the tower body is trapezoid, wherein the upper edge is parallel to the horizontal plane; the first side edge close to one side of the tower body is a part of the main material 1 of the tower body; the lower edge opposite to the upper edge is obliquely arranged and shorter than the length of the upper edge; the second side far away from one side of the tower body is connected with the upper side and the lower side.
The first unit of the ground wire cross arm 5 is internally provided with crossed angle steel which is close to the tower body and is connected with the upper edge and the lower edge; the other units, namely the other part far away from the tower body, are only provided with a single inclined angle steel to connect the upper edge and the lower edge. Here, the unit is bounded by angle steel arranged vertically.
The total height of the ground wire cross arm 5 is up to 2m, and the total length is up to 25.4m.
Optionally, two wire hanging holes are formed on two sides of the ground wire cross arm 5; the first wire hanging hole is 6.45m from the central axis of the tower body, and the second wire hanging hole is 12.7m from the central axis of the tower body.
Two sides of the ground wire cross arm 5 are respectively provided with two wire hanging holes, and the distance between each wire hanging hole and the central axis of the tower body is 6.45m and 12.7m respectively so as to meet lightning protection requirements, electric clearance requirements, electromagnetic environment requirements and insulation distance requirements.
Optionally, the section of the wire cross arm 6 along the central axis of the tower body is a trapezoid, the side edge of the trapezoid far away from the central axis of the tower body is parallel to the central axis, and the lower edge of the trapezoid is parallel to the horizontal plane; the total length of the wire crossarm 6 is 27m.
As shown in fig. 1, the cross arm 6 of the wire is trapezoid in 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 material 1 of the tower body; the upper edge opposite to the lower edge is obliquely arranged and longer than the length of the lower edge, and one end of the upper edge and the ground wire cross arm 5 are provided with a common connection point; the second side of keeping away from body of a tower one side is parallel with the axis, connects top and lower limit, and the height of second side is 1m.
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 strengthen the rigidity of the tower; the other units, namely the other part far away from the tower body, are provided with crossed angle steel to connect the upper edge and the lower edge.
The total height of the wire cross arm 6 is up to 3m and the total length is up to 27m.
Optionally, three wire hanging holes are formed on two sides of the wire cross arm 6; the first wire hanging hole is 4.1m away from the central axis of the tower body, the second wire hanging hole is 8.8m away from the central axis of the tower body, and the third wire hanging hole is 13.5m away from the central axis of the tower body.
Unlike the prior art, the 110kV double-loop drilling tower provided by the embodiment of the application has the advantages that three wire hanging holes are respectively formed in the wire cross arms 6 at two sides, and the distances between the wire hanging holes and the central axis of the tower body are respectively 4.1m, 8.8m and 12.7m so as to meet the lightning protection requirement, the electric gap requirement, the electromagnetic environment requirement and the insulation distance requirement.
Alternatively, the vertical distance between the slope 7 and the wire cross arm 6 is 3m.
In order to meet the lightning protection requirement, the electric clearance requirement, the electromagnetic environment requirement and the insulation distance requirement, the distance between the slope changing part 7 and the wire cross arm 6 in the vertical direction is 3m.
Optionally, the cross section of the tower body above the variable slope position 7 is square, and the width of the tower body at the variable slope position 7 is 2.6m.
As shown in FIG. 1, the 110kV double-loop drilling tower provided by the embodiment of the application has a trapezoid column upper section, the upper section is bounded by a slope change position 7, the width of the tower body at the upper part of the upper section is 2.0m, and the width of the tower body at the slope change position 7 is 2.6 m.
Optionally, the total height of the drilling tower is 14-20 m.
The 110kV double-loop drilling tower provided by the embodiment of the application has the total height range of 14-20 m. According to the construction condition, when the minimum calling height is 9m, the tower root opening is 4.28m, and the total height of the tower is 14m; when the call height is 15m at the highest, the tower root opening is 5.96m, and the total height of the tower is 20m.
According to the 110kV double-loop crossing tower provided by the embodiment of the application, two wire hanging points are respectively arranged on two sides of the ground wire cross arm 5, three wire hanging points are respectively arranged on two sides of the wire cross arm 6, and only two layers of cross arms are arranged, so that the height of the tower head can be effectively reduced, the total height of the control tower is in a control range, and the safety of a power transmission line in crossing is ensured. Meanwhile, the whole tower is made of angle steel materials, so that the tower plate effect is achieved, the structure is simple, and the processing and manufacturing are convenient. All components of the tower are galvanized and corrosion-resistant, so that the durability of the tower can be improved, and the safety of the tower is ensured. The 110kV double-loop crossing tower provided by the application has only one layer of ground wire cross arm and one layer of wire cross arm, and one side of the wire cross arm is hung with a three-phase wire.
It should 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 one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing is only a specific embodiment of the application to enable those skilled in the art to understand or practice the 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 will be understood that the 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 (6)
1. A 110kV dual circuit drilling tower, comprising: the tower body comprises a main tower body material (1), a cross tower body 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, and a ground wire cross arm (5) and a wire cross arm (6) are sequentially arranged from top to bottom;
The ground wire cross arms (5) and the lead cross arms (6) are symmetrically arranged on two sides of the tower body; two wire hanging holes are formed in two sides of the ground wire cross arm (5); the first wire hanging hole is 6.45m away from the central axis of the tower body, and the second wire hanging hole is 12.7m away from the central axis of the tower body; three wire hanging holes are formed in two sides of the wire cross arm (6); the first wire hanging hole is 4.1m away from the central axis of the tower body, the second wire hanging hole is 8.8m away from the central axis of the tower body, and the third wire hanging hole is 13.5m away from the central axis of the tower body; one side of the wire cross arm (6) is hung with a three-phase wire;
The drilling tower Quan Da is made of angle steel.
2. The double-circuit drilling tower according to claim 1, characterized in that the section of the ground wire cross arm (5) along the central axis of the tower body is a trapezoid, the upper side of which is parallel to the horizontal plane, the lower side is shorter than the upper side, and is obliquely arranged; the total length of the ground wire cross arm (5) is 25.4m.
3. The double-circuit drilling tower according to claim 1, characterized in that the cross-section of the wire cross arm (6) along the central axis of the tower body is a trapezoid, 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 27m.
4. Double-circuit drilling tower according to claim 1, characterized in that the vertical distance of the ramp (7) from the wire crossarm (6) is 3m.
5. The double circuit drilling tower according to claim 4, characterized in that the cross section of the tower body above the varying slope (7) is square, the tower body width of the varying slope (7) being 2.6m.
6. The dual circuit drilling tower of claim 1, wherein the full height of the drilling tower is 14m to 20m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811419228.9A CN109356429B (en) | 2018-11-26 | 2018-11-26 | A 110kV double circuit tower drilling |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811419228.9A CN109356429B (en) | 2018-11-26 | 2018-11-26 | A 110kV double circuit tower drilling |
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| CN109356429A CN109356429A (en) | 2019-02-19 |
| CN109356429B true CN109356429B (en) | 2024-05-31 |
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| CN201811419228.9A Active CN109356429B (en) | 2018-11-26 | 2018-11-26 | A 110kV double circuit tower drilling |
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Families Citing this family (1)
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| CN110924732B (en) * | 2019-12-09 | 2022-07-22 | 广州增立钢管结构股份有限公司 | Main material and cross connecting plate assembly method of multi-main material iron tower |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101510679A (en) * | 2009-03-20 | 2009-08-19 | 江苏科能电力工程咨询有限公司 | 110KV double-loop T connection steel pipe pole |
| CN102817491A (en) * | 2012-08-08 | 2012-12-12 | 邯郸供电公司 | 110kV dual-loop line drilling iron tower |
| CN204691370U (en) * | 2015-04-09 | 2015-10-07 | 国家电网公司 | The novel butterfly in 110kV double loop, high altitude localities bores more tower |
| CN105155911A (en) * | 2015-09-07 | 2015-12-16 | 安徽华电工程咨询设计有限公司 | Double-loop double-side on-off steel tube role tower adopting triangular cross beam arrangement |
| CN205243135U (en) * | 2015-12-16 | 2016-05-18 | 龙源（北京）风电工程设计咨询有限公司 | Two times overhead transmission line alternately bores tower more |
| RU170640U1 (en) * | 2017-01-20 | 2017-05-03 | Евгений Вячеславович Хорошкеев | TWO-CHAIN INTERMEDIATE MULTI-DIMENSIONAL SUPPORT OF ELECTRIC TRANSMISSION LINES |
| WO2018059190A1 (en) * | 2016-09-29 | 2018-04-05 | 江苏神马电力股份有限公司 | Tower head of power transmission tower, and power transmission tower |
| CN209976137U (en) * | 2018-11-26 | 2020-01-21 | 中国能源建设集团陕西省电力设计院有限公司 | A 110kV double-circuit drilling tower |
-
2018
- 2018-11-26 CN CN201811419228.9A patent/CN109356429B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101510679A (en) * | 2009-03-20 | 2009-08-19 | 江苏科能电力工程咨询有限公司 | 110KV double-loop T connection steel pipe pole |
| CN102817491A (en) * | 2012-08-08 | 2012-12-12 | 邯郸供电公司 | 110kV dual-loop line drilling iron tower |
| CN204691370U (en) * | 2015-04-09 | 2015-10-07 | 国家电网公司 | The novel butterfly in 110kV double loop, high altitude localities bores more tower |
| CN105155911A (en) * | 2015-09-07 | 2015-12-16 | 安徽华电工程咨询设计有限公司 | Double-loop double-side on-off steel tube role tower adopting triangular cross beam arrangement |
| CN205243135U (en) * | 2015-12-16 | 2016-05-18 | 龙源（北京）风电工程设计咨询有限公司 | Two times overhead transmission line alternately bores tower more |
| WO2018059190A1 (en) * | 2016-09-29 | 2018-04-05 | 江苏神马电力股份有限公司 | Tower head of power transmission tower, and power transmission tower |
| RU170640U1 (en) * | 2017-01-20 | 2017-05-03 | Евгений Вячеславович Хорошкеев | TWO-CHAIN INTERMEDIATE MULTI-DIMENSIONAL SUPPORT OF ELECTRIC TRANSMISSION LINES |
| CN209976137U (en) * | 2018-11-26 | 2020-01-21 | 中国能源建设集团陕西省电力设计院有限公司 | A 110kV double-circuit drilling tower |
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