CN201332250Y - Tangent tower in shape of cathead of same-tower and three-circuit transmission line - Google Patents
Tangent tower in shape of cathead of same-tower and three-circuit transmission line Download PDFInfo
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- CN201332250Y CN201332250Y CNU2008201676469U CN200820167646U CN201332250Y CN 201332250 Y CN201332250 Y CN 201332250Y CN U2008201676469 U CNU2008201676469 U CN U2008201676469U CN 200820167646 U CN200820167646 U CN 200820167646U CN 201332250 Y CN201332250 Y CN 201332250Y
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Abstract
A tangent tower in the shape of cathead of a same-tower and three-circuit transmission line mainly comprises tower legs, a tower body, a tower head and a three-phase conducting wire insulator string fixedly connected on the tower head, and the tower head comprises a single-circuit tower head and a double-circuit tower head; the single-circuit tower head in the shape of cathead comprises a tower window and two side-phase conducting wire crossarms, a middle-phase conducting wire is positioned in the tower window, the three-phase conducting wires are arranged in a triangular mode, and the side-phase conducting wire crossarms of the single-circuit tower head are wholly designed into a swallowtail-type lower pulling structure; the single-circuit tower head and the double-circuit tower head are arranged in an upper position and a lower position, and the single-circuit tower head is positioned in the upper position; an earth wire upper frame is arranged at the top of the single-circuit tower head, and the single-circuit tower head and the double-circuit tower head share the earth wire upper frame; and three return circuits including nine phases of conducting wires adopt the V-shaped three-phase conducting wire insulator string to connect with a steel tower conducting wire crossarm. Therefore, through the optimal arrangement of the tower head structure and the improvement of the mode of insulator string, the tangent tower reduces the dimension of the tower head, effectively reduces the width of the circuit corridor, reduces the consumption quantity of the tower material and improves the transmission power of the unit corridor.
Description
Technical field
The utility model relates to a kind of overhead transmission line iron tower, in particular, relate to a kind of same tower three back transmission line tangent towers of cat head shape.
Background technology
The development of China's electric utility is at present advanced by leaps and bounds, and superhigh pressure, big capacity, multiloop are carried the inexorable trend that has become the electric power conveying, but ultra-high-tension power transmission line causes various contradictions more and more outstanding owing to taking too much, the wide problem in corridor.High pressure and extra high voltage network adopt the situation of multi-circuits transmission lines on single tower to be obvious ascendant trend in recent years.
Existing superhigh pressure with tower multiloop transmission line mainly based on the double loop, growing tension along with circuit corridor resource, also begin to apply to engineering design with tower four loops, their common feature is that feeder number is even number, left and right symmetrically is distributed in the body of the tower both sides, has greatly reduced the circuit corridor.
At the situation of 3 times supertension lines under needing to arrange in same corridor, the general practice is the scheme that adopts a common-tower double-return Lu Jiayi single loop parallel at present, needs to take very wide circuit corridor for this reason.If a common-tower double-return road and a single loop are made up on same iron tower, form one with tower three loops, will solve transmission line effectively and take too much, the wide problem in corridor.The utility model will be to studying with tower three loops series iron tower, and develop a kind of with tower three back transmission line tangent suspension towers.
Summary of the invention
The purpose of this utility model is to overcome the deficiency that prior art exists, and can optimize the same tower three back transmission line cat head shape tangent towers that take up room and provide a kind of.
The purpose of this utility model is achieved by the following technical solution, and it mainly includes tower leg, body of the tower, tower head and is fixedly connected on three-phase conducting wire insulator string on the tower head, and described tower head is made up of single loop tower head and double loop tower head; Described single-circuit steel tower capitiform such as cat head shape, it is made of tower window and both sides phase conductor cross-arm, and middle phase conductor is positioned at the tower window, and three-phase conducting wire is delta arrangement.
The limit phase conductor cross-arm global design of described single loop tower head becomes the dovetail type pull-down structure; This single loop tower head and double loop tower head are presented down layout, and the single loop tower head is positioned at top; Be provided with the ground wire upper frame at the top of single loop tower head, the shared ground wire upper frame of single, double loop tower head; And three loops totally nine phase conductors all adopt V-arrangement three-phase conducting wire insulator string and iron tower lead cross-arm to connect.
Described double loop tower head is positioned at the bottom of single loop tower head, is made of three layer conductor cross-arms of vertical arrangement, symmetric arrangement, and the more upper and lower lead cross-arm of middle phase conductor cross-arm is long, and is double loop six phase conductors of drum type.
The utility model is from iron tower structural configuration and stressed angle with rational, to having carried out economic technology with the multiple structure scheme of tower three back transmission line iron towers relatively, propose a kind of single loop last, double loop under " pyramid " formula layout.
Compared with prior art, the beneficial effects of the utility model are: by the improvement to the preferred arrangement and the insulator string pattern of tower head structure, reduce the tower head size, thereby reduced circuit width of corridor, reduction tower material consumption effectively, improved the transmission power of unit corridor.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
Label shown in the figure is: 1 single-circuit steel tower is lead cross-arm, 4 tower legs, 5 bodies of the tower, 6 double loop lower wire cross-arms, 7 ground wire upper frames, 8 " V " shape insulator string, 9 single loop tower heads, 10 single-circuit steel tower windows, 11 double loop tower heads in phase conductor cross-arm, 2 double loop upper conductor cross-arms, 3 double loops in front.
Below in conjunction with accompanying drawing the utility model is described in further detail.Shown in Figure 1, the utility model mainly includes tower leg 4, body of the tower 5, tower head and is fixedly connected on three-phase conducting wire insulator string 8 on the tower head.Described tower head is made up of single loop tower head 9 and double loop tower head 6; Described single loop tower head 9 shapes such as cat head shape are called cat head shape tower head for this reason, and it is made of tower window 10 and both sides phase conductor cross-arm 1, are further control tower area of bed, and limit phase conductor cross-arm 1 global design becomes the dovetail type pull-down structure; Middle phase conductor is positioned at tower window 10, and three-phase conducting wire is delta arrangement.
Described single loop tower head 9 is up and down with double loop tower head 6 arranges that single loop tower head 9 is positioned at top; Be provided with ground wire upper frame 7 at the top of single loop tower head 9, the shared ground wire upper frame 7 of single, double loop tower head, ground wire upper frame 7 hanging points are positioned at beyond the phase conductor of single loop limit, to reach the purpose of the negative protection of opposite side phase conductor; And three loops totally nine phase conductors all adopt V-arrangement three-phase conducting wire insulator string and iron tower lead cross-arm to connect.
Described double loop tower head 6 is positioned at the bottom of single loop tower head 9, is made of three layer conductor cross-arms of vertical arrangement, symmetric arrangement, and middle phase conductor cross-arm 10 more upper and lower lead cross-arms are long, so double loop six phase conductors are cydariform.
Whole turriform axisymmetricly.
Because cat head shape single loop tower head three-phase conducting wire is delta arrangement, under the prerequisite that satisfies the electrical safety gap, can compress width of corridor effectively, but the tower head height needs corresponding increase.This kind turriform is than being more suitable for width of corridor control strictness but the looser circuit of lightning protection requirement.
As a kind of improvement, the single loop and the double loop that need be arranged in two circuit corridors usually synthesized one with tower three loops, double loop tower head 11 is arranged in down, single loop tower head 9 is arranged in, and shared ground wire upper frame 7 is positioned at single loop tower head upper end.Through after the structure optimization, reach the effect that deposits three loops with the width cloth in conventional double circuit line corridor.
As a kind of improvement, three loops totally nine phase conductors all adopt V-arrangement insulator string and iron tower lead cross-arm to connect, further compressed lines route road width of corridor.
As a kind of improvement, for making full use of the tower head gap, both sides phase conductor cross-arm 1 global design of single loop tower head becomes the dovetail type pull-down structure.
At last, it should be noted that above what enumerate only is specific embodiment of the utility model.Obviously, the utility model is not limited to above embodiment, and a lot of distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from the disclosed content of the utility model all should be thought protection range of the present utility model.
Claims (3)
1, a kind of with tower three back transmission line cat head shape tangent towers, it mainly includes tower leg, body of the tower, tower head and is fixedly connected on three-phase conducting wire insulator string on the tower head, it is characterized in that described tower head is made up of single loop tower head (9) and double loop tower head (6); Described single loop tower head (9) shape such as cat head shape, it is made of tower window (10) and both sides phase conductor cross-arms (1), and middle phase conductor is positioned at tower window (10), and three-phase conducting wire is delta arrangement.
2, according to claim 1 with tower three back transmission line cat head shape tangent towers, it is characterized in that limit phase conductor cross-arm (1) global design of described single loop tower head (9) becomes the dovetail type pull-down structure; This single loop tower head (9) is up and down with double loop tower head (6) arranges that single loop tower head (9) is positioned at top; Be provided with ground wire upper frame (7) at the top of single loop tower head (9), the shared ground wire upper frame of single, double loop tower head (7); And three loops totally nine phase conductors all adopt V-arrangement three-phase conducting wire insulator string and iron tower lead cross-arm to connect.
3, according to claim 1 and 2 with tower three back transmission line cat head shape tangent towers, it is characterized in that described double loop tower head (6) is positioned at the bottom of single loop tower head (9), three layer conductor cross-arms by vertical arrangement, symmetric arrangement constitute, the middle more upper and lower lead cross-arm of phase conductor cross-arm (10) is long, and is double loop six phase conductors of cydariform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201676469U CN201332250Y (en) | 2008-11-07 | 2008-11-07 | Tangent tower in shape of cathead of same-tower and three-circuit transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201676469U CN201332250Y (en) | 2008-11-07 | 2008-11-07 | Tangent tower in shape of cathead of same-tower and three-circuit transmission line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201332250Y true CN201332250Y (en) | 2009-10-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201676469U Expired - Fee Related CN201332250Y (en) | 2008-11-07 | 2008-11-07 | Tangent tower in shape of cathead of same-tower and three-circuit transmission line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201332250Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105178685A (en) * | 2015-09-10 | 2015-12-23 | 安徽华电工程咨询设计有限公司 | Novel three-circuit power transmission tower |
-
2008
- 2008-11-07 CN CNU2008201676469U patent/CN201332250Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105178685A (en) * | 2015-09-10 | 2015-12-23 | 安徽华电工程咨询设计有限公司 | Novel three-circuit power transmission tower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091021 Termination date: 20161107 |