CN203846844U - Double-circuit line joint use coordinated transposition post tower - Google Patents
Double-circuit line joint use coordinated transposition post tower Download PDFInfo
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- CN203846844U CN203846844U CN201420151691.0U CN201420151691U CN203846844U CN 203846844 U CN203846844 U CN 203846844U CN 201420151691 U CN201420151691 U CN 201420151691U CN 203846844 U CN203846844 U CN 203846844U
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Abstract
The utility model discloses a double-circuit line joint use coordinated transposition post tower which comprises a tower body. The double-circuit line joint use coordinated transposition post tower is characterized in that one side of the upper end of the tower body is provided with a first group of three-layer cross arms, the other side of the upper end of the tower body is provided with a second group of three-layer cross arms, and the distance between an upper layer of the second group of three-layer cross arms and a lower layer of the first group of three-layer cross arms is 4500-6000 mm. The double-circuit line joint use coordinated transposition post tower is safe in structure and low in fabricating cost; due to the facts that cable cross spanning is no longer adopted and a four-base-tower direct spanning is no longer adopted either, the engineering cost can be effectively reduced during double-circuit line joint use cross spanning and is a half of ordinary design engineering cost, and an occupied space is small.
Description
Technical field
The utility model relates to a kind of improvement of double-circuit line shaft tower, and specifically a kind of double-circuit line is joint used coordinated transposition shaft tower.
Background technology
Present stage, the power construction of national basis facility, high-voltage fence is along with expanding economy, and also fast development is got up.Dotted electrical network interts in large ground, and circuit corridor is also more and more nervous.With shaft tower double loop, multi circuit transmission lines, get more and more.To same shaft tower double-circuit line, owing to affected by scheduling, double back need be carried out coordinated transposition with tower erection circuit.The double-circuit line shaft tower using at present, comprise tower body, in the upper end of tower body one side, be provided with first group of three layers of cross-arm, at the upper end of tower body opposite side, be provided with second group of three layers of cross-arm, first group of three layers of cross-arm and second group of three layers of cross-arm symmetry, the deficiency of this double-circuit line shaft tower is: when transposition, need adopt cable transposition, as shown in Figure 3, adopt after cable transposition, engineering cost increases greatly, and increased joint, to operation maintenance, brought potential safety hazard; If do not adopt cable, change single back line shaft tower into and carry out coordinated transposition, because the structure of single back line shaft tower comprises tower body, in the upper end of tower body, one side is provided with a cross-arm, is provided with two cross-arms of symmetry at the downside of a cross-arm, so at least need to adopt four base shaft towers ability coordinated transpositions, as shown in Figure 4, owing at least needing to adopt four base shaft towers, institute is so that land occupation area rolls up, and construction costs is also higher.Known by retrieving, have not yet to see by upper end one side at tower body and be provided with first group of three layers of cross-arm, at the upper end of tower body opposite side, lower than the position of first group of three layers of cross-arm, be provided with second group of three layers of cross-arm coordinated transposition and do not adopt cable, thereby solved that when double-circuit line shaft tower adopts cable transposition, engineering cost is large, joint increases or adopted single back line four base shaft towers to carry out the report of the shaft tower that cost is high, floor space is large that coordinated transposition brings.
Summary of the invention
The purpose of this utility model be to provide a kind of cost low, double back joint use when crossing elimination is crossed over, do not adopt cable, engineering cost low, do not increase joint, also do not increase floor space, and double-circuit line simple in structure is joint used coordinated transposition shaft tower simultaneously.
In order to reach above object, the technical scheme that the utility model adopts is: this double-circuit line is joint used coordinated transposition shaft tower, comprises tower body, it is characterized in that: upper end one side of described tower body is provided with first group of three layers of cross-arm; At the upper end of tower body opposite side, be provided with second group of three layers of cross-arm; Distance between the lower floor of the upper strata of second group of three layers of cross-arm and first group of three layers of cross-arm is 4500-6000mm; The length of first group of upper strata cross-arm of first group of described three layers of cross-arm is 2500-3200mm, and the length of first group of middle level cross-arm is 3100-3900mm, and the length of first group of lower floor's cross-arm is 2600-3400mm; The length of second group of upper strata cross-arm of second group of described three layers of cross-arm is 3400-3900mm, and the length of second group of middle level cross-arm is 4000-4500mm, and the length of second group of lower floor's cross-arm is 3400-3900mm.
The utility model is also implemented by following measure: the top of described tower body connects lightning rod by flange.
Described tower body adopts four pipe towers, and its structure is known technology, therefore seldom state, adopts four pipe towers, can realize the object that floor space is little, can be used for hills, level land, urban district etc., and its feature is to combine the advantage of double back tower and single time built on stilts scissors crossing.
The beneficial effects of the utility model are: this double-circuit line is joint used coordinated transposition shaft tower, structure is used safety, cost low, owing to no longer adopting cable scissors crossing, also no longer adopt four Ji Ta directly to cross over, so when double back is joint used crossing elimination leap, can effectively reduce construction costs, be half of common project engineering cost, and floor space is little.
Accompanying drawing explanation
Fig. 1 is that structure master of the present utility model looks schematic diagram.
Fig. 2 is that crossing elimination of the present utility model is crossed over application state schematic diagram.
Fig. 3 has provided current double-circuit line shaft tower and has adopted cable transposition stringing schematic top plan view.
Fig. 4 has provided current single back line shaft tower and has carried out coordinated transposition stringing schematic top plan view.
In figure: 1, tower body; 2, first group of three layers of cross-arm; 21; First group of upper strata cross-arm; 22, first group of middle level cross-arm; 23, first group of lower floor's cross-arm; 3, second group of three layers of cross-arm; 31, second group of upper strata cross-arm; 32, second group of middle level cross-arm; 33, second group of lower floor's cross-arm; 4, lightning rod; 5, double-circuit line shaft tower; 6, single back line shaft tower.
The specific embodiment
With reference to Fig. 1, make the utility model.Fig. 1 has provided a shaft tower embodiment who meets the scissors crossing of 110kV double-circuit line.This double-circuit line is joint used coordinated transposition shaft tower, comprises tower body 1, it is characterized in that: upper end one side of described tower body 1 is provided with first group of three layers of cross-arm 2, hangs a return wire; At the upper end of tower body 1 opposite side, be provided with second group of three layers of cross-arm 3, hang another return wire; Distance between the lower floor of the upper strata of second group of three layers of cross-arm 3 and first group of three layers of cross-arm 2 is 4500-6000mm; The length of first group of upper strata cross-arm 21 of first group of described three layers of cross-arm 2 is 2500-3200mm, and the length of first group of middle level cross-arm 22 is 3100-3900mm, and the length of first group of lower floor's cross-arm 23 is 2600-3400mm; The length of second group of upper strata cross-arm 31 of second group of described three layers of cross-arm 3 is 3400-3900mm, and the length of second group of middle level cross-arm 32 is 4000-4500mm, and the length of second group of lower floor's cross-arm 33 is 3400-3900mm; The length of each group, each layer of cross-arm and wire spacing can be determined by span and electric pressure adjustment; The effect of each group, each layer of cross-arm is mainly carried wire weight and is met electrical distance requirement, the angle steel of L80*8, consists of.
As improvement of the present utility model: the top of described tower body 1 connects lightning rod 4 by flange.
Described tower body 1 adopts four pipe towers, and its structure is known technology, therefore seldom state, adopts four pipe towers, can realize the object that floor space is little, can be used for hills, level land, urban district etc., and its feature is to combine the advantage of double back tower and single time built on stilts scissors crossing.
Use this to use when novel, as shown in Figure 2, need in the line to establish two base double-circuit lines and joint use coordinated transposition shaft tower A1, A2, two base double-circuit lines are joint used coordinated transposition shaft tower A1, first group of three layers of cross-arm 2 of A2 and the opposite direction of second group of three layers of cross-arm 3, at two base double-circuit lines, joint use coordinated transposition shaft tower A1, the outside of A2 is provided with many bases double-circuit line shaft tower B1, B2, B3, B4, double-circuit line shaft tower B1, the circuit I of B2 mono-side cross-arm joint uses coordinated transposition shaft tower A1 by two base double-circuit lines, second group of three layers of cross-arm, the 3 access double-circuit line shaft tower B3 of A2, the cross-arm of the opposite side of B4, realized intersection, in like manner, the circuit II of double-circuit line shaft tower B1, B2 opposite side cross-arm joint uses the cross-arm of a side of first group of three layers of cross-arm 2 access double-circuit line shaft tower B3, the B4 of coordinated transposition shaft tower A1, A2 by two base double-circuit lines, realized intersection, like this, just, not adopting cable scissors crossing, also no longer adopt four Ji Ta directly to cross over.
Fig. 3 has provided current double-circuit line shaft tower and has adopted cable transposition stringing schematic top plan view, and as can be seen from Figure 3, on double-circuit line shaft tower 5, the circuit II of a side accesses opposite side circuit II on another double-circuit line shaft tower 5 by cable.
Fig. 4 has provided current single back line shaft tower and has carried out coordinated transposition stringing schematic top plan view, as can be seen from Figure 3, has adopted four base single back line shaft towers 6, has just completed coordinated transposition stringing.
Claims (2)
1. double-circuit line is joint used coordinated transposition shaft tower, comprises tower body (1), it is characterized in that: upper end one side of described tower body (1) is provided with first group three layers cross-arm (2); Upper end opposite side at tower body (1) is provided with second group three layers cross-arm (3); Distance between the lower floor of the upper strata of second group three layers cross-arm (3) and first group three layers cross-arm (2) is 4500-6000mm; The length of first group of upper strata cross-arm (21) of described first group three layers cross-arm (2) is 2500-3200mm, and the length of first group of middle level cross-arm (22) is 3100-3900mm, and the length of first group of lower floor's cross-arm (23) is 2600-3400mm; The length of second group of upper strata cross-arm (31) of described second group three layers cross-arm (3) is 3400-3900mm, and the length of second group of middle level cross-arm (32) is 4000-4500mm, and the length of second group of lower floor's cross-arm (33) is 3400-3900mm.
2. double-circuit line according to claim 1 is joint used coordinated transposition shaft tower, it is characterized in that: the top of described tower body (1) connects lightning rod (4) by flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420151691.0U CN203846844U (en) | 2014-04-01 | 2014-04-01 | Double-circuit line joint use coordinated transposition post tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420151691.0U CN203846844U (en) | 2014-04-01 | 2014-04-01 | Double-circuit line joint use coordinated transposition post tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203846844U true CN203846844U (en) | 2014-09-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420151691.0U Expired - Fee Related CN203846844U (en) | 2014-04-01 | 2014-04-01 | Double-circuit line joint use coordinated transposition post tower |
Country Status (1)
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| CN (1) | CN203846844U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405167A (en) * | 2014-12-01 | 2015-03-11 | 国家电网公司 | Mixed-voltage multi-circuit cross high-voltage wire tower |
| CN105680400A (en) * | 2016-03-09 | 2016-06-15 | 国家电网公司 | Single-loop power distribution overhead line junction pole and wiring structure thereof |
| CN106088772A (en) * | 2016-07-01 | 2016-11-09 | 国家电网公司 | A kind of mountain region side slope tangent tower of vertical adjustable cross-arm |
| CN114458068A (en) * | 2022-02-22 | 2022-05-10 | 国核电力规划设计研究院有限公司 | Power transmission system |
-
2014
- 2014-04-01 CN CN201420151691.0U patent/CN203846844U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405167A (en) * | 2014-12-01 | 2015-03-11 | 国家电网公司 | Mixed-voltage multi-circuit cross high-voltage wire tower |
| CN105680400A (en) * | 2016-03-09 | 2016-06-15 | 国家电网公司 | Single-loop power distribution overhead line junction pole and wiring structure thereof |
| CN105680400B (en) * | 2016-03-09 | 2018-03-20 | 国家电网公司 | A kind of single loop distribution overhead line junction pole and its wiring construction |
| CN106088772A (en) * | 2016-07-01 | 2016-11-09 | 国家电网公司 | A kind of mountain region side slope tangent tower of vertical adjustable cross-arm |
| CN106088772B (en) * | 2016-07-01 | 2018-07-24 | 国家电网公司 | A kind of mountainous region side slope tangent tower of vertical adjustable cross-arm |
| CN114458068A (en) * | 2022-02-22 | 2022-05-10 | 国核电力规划设计研究院有限公司 | Power transmission system |
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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: 20140924 Termination date: 20170401 |