CN203008474U - Single circuit line tower for 220kv electric transmission lines in areas of elevations below 4000m and wind speed of 28m/s - Google Patents
Single circuit line tower for 220kv electric transmission lines in areas of elevations below 4000m and wind speed of 28m/s Download PDFInfo
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- CN203008474U CN203008474U CN 201220712755 CN201220712755U CN203008474U CN 203008474 U CN203008474 U CN 203008474U CN 201220712755 CN201220712755 CN 201220712755 CN 201220712755 U CN201220712755 U CN 201220712755U CN 203008474 U CN203008474 U CN 203008474U
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Abstract
The utility model discloses a single circuit line tower for 220kv electric transmission lines in areas of elevations below 4000m and wind speed of 28m/s and relates to power transmission equipment. The single circuit line tower comprises a tower head, a tower body and a tower leg. The tower head is in the shape of a goblet and comprises a crank arm, a wire transverse bracket and a ground wire support. The wire transverse bracket comprises two wire side transverse brackets which are triangular and a wire middle transverse bracket which is in the shape of two connected trapezoids, wires are arranged in the shape of I on the wire side transverse brackets, and wires are arranged in the shape of V on the wire middle transverse brackets. A wire hanging point at the front end of the ground wire support is in the structure of a cantilever. The tower body is in the shape of a trapezoid. The tower leg is in the non-common structure. The single circuit line tower can perfectly meet the requirements of safety, reliability, advancement, applicability economy and reasonability of the engineering, resource saving and environment friendliness.
Description
Technical field
The utility model relates to a kind of D.C. high voltage transmission tower, particularly relates to one one kinds and returns tangent tower for the following regional 28m/s wind district 220kV transmission line of electricity list of height above sea level 4000m.
Background technology
Rapid growth along with China's economy, making smooth advances of strategy to develop western regions, the Tibet region is more and more vigorous to the demand of electric power, for satisfying the need for electricity of Tibet region people of all nationalities, need to carry out to the Tibet region long distance power transmission, and the Tibet region mountain shape is dangerously steep, features as poor geologic condition, have inconvenient traffic, the specific condition such as height above sea level, complicated plateau climate, icing are serious, transmission line of electricity is also had special requirement, set up difficulty and cost all very high.For addressing this problem, realize the allocating task of the electric power energy that the Qinghai-Tibet DC line is carried, our specialized designs one be used for the following regional 28m/s wind district 220kV transmission line of electricity of height above sea level 4000m.Due to the special applied environment of this circuit, existing tangent tower can not satisfy its application requirements, must design novel tangent tower, make its normal operation under the special environment in Tibet region, neither produce the danger of discharge, control cost to greatest extent again, satisfy special applications requirement under 28m/s wind district and complicated weather and orographic condition.
The utility model content
The purpose of this utility model is the defective for prior art, proposes tangent tower a kind of and that the following regional 28m/s wind district 220kV transmission line of electricity of height above sea level 4000m is supporting, to satisfy its special application requirements.
The purpose of this utility model realizes by following technical proposals:
A kind of list for transmission line of electricity returns tangent tower, comprises tower leg 1, tower body 2 and tower head 3, and described tower body 2 is trapezoidal tower body; Described tower head 3 by crank arm 31, wire cross-arm 32 and earth wire support 33 consist of, described tower head pattern is " wine glass-shaped ", described cranking arm 31 is connected in the tower body top, described wire cross-arm 32 is positioned at described 31 tops of cranking arm, wire during described wire cross-arm 32 hangs by " V " type insulator string with described 31 the inboard of cranking arm, described wire cross-arm 32 outsides hang the limit wire by " I " type insulator string; Described earth wire support 33 is located on described wire cross-arm 32.
as optimal way, in described tangent tower, tower body 2 is trapezoidal tower body, extends above described tower leg, described wire cross-arm 32 comprises cross-arm 321 and polygon leg cross-arm 322 in wire, in described wire, cross-arm 321 is positioned at the inboard of cranking arm, be the trapezoidal cross-arm pattern of closing in type, described polygon leg cross-arm 322 is positioned at the outside of cranking arm, be triangle cross-arm pattern, in described wire, cross-arm 322 arranges middle wire insulation substring hanging point 42 with 31 the junction of cranking arm, be used for hanging wire insulation substring 52, described middle wire insulation substring 52 forms " V " string, its lower extreme point 62 is used for hanging wire, the outboard end of described polygon leg cross-arm 322 arranges limit wire insulation substring hanging point 41, be used for hanging limit wire insulation substring 51, described limit wire insulation substring 51 vertical hangings, form " I " string, its lower extreme point 61 is used for hanging the limit wire, the limit wire horizontal symmetrical of both sides is arranged, described earth wire support 33 is erected on described polygon leg cross-arm 322, and extends to the oblique outside, and described earth wire support 33 is cantilever beam structures, and its outer point is provided for hanging the ground wire hanging point 7 of ground wire.
as optimal way, the tower height of described tangent tower is 39.5-42.5m, wherein tower leg height A 2 is 9m, tower body height B 1 is 14-17m, the height C1 that cranks arm is 13-14.4m, wire cross-arm and earth wire support height C2 are 3.5m, tower leg width A1 is 7.8-8.72m, the width B 2 at tower body top 21 is 3.2-3.8m, the two spacing C6 that crank arm mid point are 8.4-8.6m, polygon leg cross-arm width C 3 is 3.9-4.9m, in wire, cross-arm width C 5 is 3.6-3.9m, the wire cross-arm is 2-2.2m with the width C 4 of the connecting portion of cranking arm, the ground wire hanging point is 8.3-9.5m to the distance C 7 of tower body axis, " V " string angle α that described middle wire insulation substring 52 forms is the 90-110 degree.
As optimal way, in described tangent tower, described tower leg (1) is unshared leg structure, namely only limits the height of one leg, and all the other tower leg height are adjusted according to the landform needs.
As optimal way, in described tangent tower, the front and back side of described wire cross-arm all arranges " V " type insulator string, namely adopts two string modes to hang wire.
As optimal way, the model of the wire that hangs on described tangent tower is 2 * LJG-400/50 type.
As optimal way, the described tangent tower of described tangent tower adopts equal leg angle to build, and described equal leg angle is bolted each other.
The beneficial effects of the utility model:
1, tangent tower described in the utility model can satisfy that engineering safety is reliable, advanced and applicable, economical rationality, resources conservation and eco-friendly requirement.
2, arrangements of conductors adopts the mode that horizontal symmetrical is arranged, good looking appearance not only, and make steel tower stressed evenly.Wire hanging wire mode adopts " IVI " to arrange, can reduce cross-arm length, tower weight can significantly be reduced thus, has obvious economic advantages.
3, the tower head pattern is " wine glass-shaped ", and profile is light and handy, and power transmission is clear, and the node requirement on machining accuracy is lower, easy for installation.
4, the polygon leg cross-arm is triangle cross-arm pattern, and power transmission is clear, and node processing is simple, the requirement of very practical and 220kV conductor load; In wire, cross-arm is the trapezoidal cross-arm pattern of closing in type, tower head is combined more tight with middle phase conductor electric clearance, has optimized the tower head size, and tower weight is lighter, and economic advantages are obvious.
5, the front end hanging wire point of earth wire support is cantilever beam structures, and simple structure satisfies simultaneously the requirement of 220kV ground line load fully.
6, tower leg adopts unshared leg structure, makes the unequal leg of steel tower more can satisfy the landform requirement of cliffy mountain, can reduce the evolution of tangent tower basal plane, does not destroy landform and the vegetation in mountain area, thereby is conducive to environmental protection.
7, rational size design makes the tangent tower can normal operation under the special environment in Tibet region, neither produces the danger of discharge, controls cost to greatest extent again, satisfies simultaneously special applications requirement under 28m/s wind district and complicated weather and orographic condition.
Description of drawings
Fig. 1 is schematic diagram of the present utility model.
The specific embodiment
Below in conjunction with specific embodiments and the drawings, the utility model is further described.
Embodiment 1
A kind of list for transmission line of electricity returns tangent tower, comprises tower leg 1, tower body 2 and tower head 3, and described tower body 2 is trapezoidal tower body; Described tower head 3 by crank arm 31, wire cross-arm 32 and earth wire support 33 consist of, described tower head pattern is " wine glass-shaped ", described cranking arm 31 is connected in the tower body top, described wire cross-arm 32 is positioned at described 31 tops of cranking arm, wire during described wire cross-arm 32 hangs by " V " type insulator string with described 31 the inboard of cranking arm, described wire cross-arm 32 outsides hang the limit wire by " I " type insulator string; Described earth wire support 33 is located on described wire cross-arm 32.
Embodiment 2
as shown in Figure 1, a kind ofly return tangent tower for regional 28m/s wind district 220kV transmission line of electricity list below height above sea level 4000m, comprise tower leg 1, tower body 2 and tower head 3, described tower leg 1 is unshared leg structure, namely only limits the height of one leg, and all the other tower leg height all can be adjusted according to the landform needs, described tower body 2 is trapezoidal tower body, extends above described tower leg, described tower head 3 is by cranking arm 31, wire cross-arm 32 and earth wire support 33 consist of, described tower head pattern is " wine glass-shaped ", described cranking arm 31 is connected in the tower body top, described wire cross-arm 32 is erected at described 31 tops of cranking arm, comprise cross-arm 321 and polygon leg cross-arm 322 in wire, in described wire, cross-arm 321 is positioned at the inboard of cranking arm, be the trapezoidal cross-arm pattern of closing in type, described polygon leg cross-arm 322 is positioned at the outside of cranking arm, be triangle cross-arm pattern, in described wire, cross-arm 322 arranges middle wire insulation substring hanging point 42 with 31 the junction of cranking arm, be used for hanging wire insulation substring 52, described middle wire insulation substring 52 forms " V " string, its lower extreme point 62 is used for hanging wire, the outboard end of described polygon leg cross-arm 322 arranges limit wire insulation substring hanging point 41, be used for hanging limit wire insulation substring 51, described limit wire insulation substring 51 vertical hangings, form " I " string, its lower extreme point 61 is used for hanging the limit wire, the limit wire horizontal symmetrical of both sides is arranged, described earth wire support 33 is erected on described polygon leg cross-arm 322, and extends to the oblique outside, and described earth wire support 33 is cantilever beam structures, and its outer point is provided for hanging the ground wire hanging point 7 of ground wire.
This tower tower height is 39.5m, wherein tower leg height A 2 is 9m, tower body height B 1 is 14m, the height C1 that cranks arm is 13m, wire cross-arm and earth wire support height C2 are 3.5m, tower leg width A1 is 7.8m, the width B 2 at tower body top 21 is 3.2m, the two spacing C6 that crank arm mid point are 8.4m, polygon leg cross-arm width C 3 is 3.9m, and in wire, cross-arm width C 5 is 3.6m, and the wire cross-arm is 2m with the width C 4 of the connecting portion of cranking arm, the ground wire hanging point is 8.3m to the distance C 7 of tower body axis, and " V " string angle α that described middle wire insulation substring 52 forms is 90 degree.
Embodiment 3
a kind of described tangent tower of the present utility model, tower height is 42.5m, wherein tower leg height A 2 is 9m, tower body height B 1 is 17m, the height C1 that cranks arm is 13m, wire cross-arm and earth wire support height C2 are 3.5m, tower leg width A1 is 8.6m, the width B 2 at tower body top 21 is 3.4m, the two spacing C6 that crank arm mid point are 8.6m, polygon leg cross-arm width C 3 is 4.2m, in wire, cross-arm width C 5 is 3.9m, the wire cross-arm is 2m with the width C 4 of the connecting portion of cranking arm, the ground wire hanging point is 8.9m to the distance C 7 of tower body axis, " V " string angle α that described middle wire insulation substring 52 forms is 96 degree.
Embodiment 4
a kind of described tangent tower of the present utility model, tower height is 42.5m, wherein tower leg height A 2 is 9m, tower body height B 1 is 16.2m, the height C1 that cranks arm is 13.8m, wire cross-arm and earth wire support height C2 are 3.5m, tower leg width A1 is 8.64m, the width B 2 at tower body top 21 is 3.6m, the two spacing C6 that crank arm mid point are 8.6m, polygon leg cross-arm width C 3 is 4.9m, in wire, cross-arm width C 5 is 3.6m, the wire cross-arm is 2.2m with the width C 4 of the connecting portion of cranking arm, the ground wire hanging point is 9.5m to the distance C 7 of tower body axis, " V " string angle α that described middle wire insulation substring 52 forms is 110 degree.
Embodiment 5
a kind of described tangent tower of the present utility model, tower height is 42.5m, wherein tower leg height A 2 is 9m, tower body height B 1 is 15.6m, the height C1 that cranks arm is 14.4m, wire cross-arm and earth wire support height C2 are 3.5m, tower leg width A1 is 8.72m, the width B 2 at tower body top 21 is 3.8m, the two spacing C6 that crank arm mid point are 8.6m, polygon leg cross-arm width C 3 is 4.4m, in wire, cross-arm width C 5 is 3.9m, the wire cross-arm is 2.2m with the width C 4 of the connecting portion of cranking arm, the ground wire hanging point is 9.3m to the distance C 7 of tower body axis, " V " string angle α that described middle wire insulation substring 52 forms is 96 degree.
The above is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. a list that is used for transmission line of electricity returns tangent tower, comprises tower leg (1), tower body (2) and tower head (3), it is characterized in that:
Described tower body (2) is trapezoidal tower body; Described tower head (3) is made of crank arm (31), wire cross-arm (32) and earth wire support (33), described tower head pattern is " wine glass-shaped ", described cranking arm (31) is connected in the tower body top, described wire cross-arm (32) is positioned at described cranking arm (31) top, described wire cross-arm (32) passes through wire in the suspension of " V " type insulator string with the inboard of described cranking arm (31), hangs the limit wire by " I " type insulator string outside described wire cross-arm (32); Described earth wire support (33) is located on described wire cross-arm (32).
2. tangent tower as claimed in claim 1, it is characterized in that: described tower body (2) is trapezoidal tower body, extends described tower leg top, described wire cross-arm (32) comprises cross-arm in wire (321) and polygon leg cross-arm (322), cross-arm in described wire (321) is positioned at the inboard of cranking arm, described polygon leg cross-arm (322) is positioned at the outside of cranking arm, cross-arm in described wire (322) arranges middle wire insulation substring hanging point (42) with the junction of crank arm (31), be used for hanging wire insulation substring (52), described middle wire insulation substring (52) forms " V " string, its lower extreme point (62) is used for hanging wire, the outboard end of described polygon leg cross-arm (322) arranges limit wire insulation substring hanging point (41), be used for hanging limit wire insulation substring (51), described limit wire insulation substring (51) vertical hanging, form " I " string, its lower extreme point (61) is used for hanging the limit wire, the limit wire horizontal symmetrical of both sides is arranged, described earth wire support (33) is erected on described polygon leg cross-arm (322), and extends to the oblique outside, and described earth wire support (33) is cantilever beam structures, and its outer point is provided for hanging the ground wire hanging point (7) of ground wire.
3. tangent tower as claimed in claim 2, it is characterized in that: tower height is 39.5-42.5m, wherein tower leg height (A2) is 9m, tower body height (B1) is 14-17m, the height (C1) of cranking arm is 13-14.4m, wire cross-arm and earth wire support height (C2) are 3.5m, tower leg width (A1) is 7.8-8.72m, the width (B2) at tower body top (21) is 3.2-3.8m, two spacings (C6) of cranking arm mid point are 8.4-8.6m, polygon leg cross-arm width (C3) is 3.9-4.9m, in wire, cross-arm width (C5) is 3.6-3.9m, the wire cross-arm is 2-2.2m with the width (C4) of the connecting portion of cranking arm, the ground wire hanging point is 8.3-9.5m to the distance (C7) of tower body axis, " V " the string angle (α) that described middle wire insulation substring (52) forms is the 90-110 degree.
4. tangent tower as claimed in claim 2, it is characterized in that: tower height is 39.5m, wherein tower leg height (A2) is 9m, tower body height (B1) is 14m, the height (C1) of cranking arm is 13m, wire cross-arm and earth wire support height (C2) are 3.5m, tower leg width (A1) is 7.8m, the width (B2) at tower body top (21) is 3.2m, two spacings (C6) of cranking arm mid point are 8.4m, polygon leg cross-arm width (C3) is 3.9m, in wire, cross-arm width (C5) is 3.6m, the wire cross-arm is 2m with the width (C4) of the connecting portion of cranking arm, the ground wire hanging point is 8.3m to the distance (C7) of tower body axis, " V " the string angle (α) that described middle wire insulation substring (52) forms is 90 degree.
5. tangent tower as claimed in claim 2, it is characterized in that: tower height is 42.5m, wherein tower leg height (A2) is 9m, tower body height (B1) is 17m, the height (C1) of cranking arm is 13m, wire cross-arm and earth wire support height (C2) are 3.5m, tower leg width (A1) is 8.6m, the width (B2) at tower body top (21) is 3.4m, two spacings (C6) of cranking arm mid point are 8.6m, polygon leg cross-arm width (C3) is 4.2m, in wire, cross-arm width (C5) is 3.9m, the wire cross-arm is 2m with the width (C4) of the connecting portion of cranking arm, the ground wire hanging point is 8.9m to the distance (C7) of tower body axis, " V " the string angle (α) that described middle wire insulation substring (52) forms is 96 degree.
6. tangent tower as claimed in claim 2, it is characterized in that: tower height is 42.5m, wherein tower leg height (A2) is 9m, tower body height (B1) is 16.2m, the height (C1) of cranking arm is 13.8m, wire cross-arm and earth wire support height (C2) are 3.5m, tower leg width (A1) is 8.64m, the width (B2) at tower body top (21) is 3.6m, two spacings (C6) of cranking arm mid point are 8.6m, polygon leg cross-arm width (C3) is 4.9m, in wire, cross-arm width (C5) is 3.6m, the wire cross-arm is 2.2m with the width (C4) of the connecting portion of cranking arm, the ground wire hanging point is 9.5m to the distance (C7) of tower body axis, " V " the string angle (α) that described middle wire insulation substring (52) forms is 110 degree.
7. tangent tower as claimed in claim 2, it is characterized in that: tower height is 42.5m, wherein tower leg height (A2) is 9m, tower body height (B1) is 15.6m, the height (C1) of cranking arm is 14.4m, wire cross-arm and earth wire support height (C2) are 3.5m, tower leg width (A1) is 8.72m, the width (B2) at tower body top (21) is 3.8m, two spacings (C6) of cranking arm mid point are 8.6m, polygon leg cross-arm width (C3) is 4.4m, in wire, cross-arm width (C5) is 3.9m, the wire cross-arm is 2.2m with the width (C4) of the connecting portion of cranking arm, the ground wire hanging point is 9.3m to the distance (C7) of tower body axis, " V " the string angle (α) that described middle wire insulation substring (52) forms is 96 degree.
8. tangent tower as described in any one in claim 1-7 is characterized in that: described tower leg (1) is unshared leg structure, namely only limits the height of one leg, and all the other tower leg height are adjusted according to the landform needs.
9. tangent tower as described in any one in claim 1-7, it is characterized in that: the front and back side of described wire cross-arm all arranges insulator string.
10. tangent tower as described in any one in claim 1-7 is characterized in that: described tangent tower adopts equal leg angle to build, and described equal leg angle is bolted each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220712755 CN203008474U (en) | 2012-12-21 | 2012-12-21 | Single circuit line tower for 220kv electric transmission lines in areas of elevations below 4000m and wind speed of 28m/s |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220712755 CN203008474U (en) | 2012-12-21 | 2012-12-21 | Single circuit line tower for 220kv electric transmission lines in areas of elevations below 4000m and wind speed of 28m/s |
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| Publication Number | Publication Date |
|---|---|
| CN203008474U true CN203008474U (en) | 2013-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220712755 Expired - Lifetime CN203008474U (en) | 2012-12-21 | 2012-12-21 | Single circuit line tower for 220kv electric transmission lines in areas of elevations below 4000m and wind speed of 28m/s |
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| CN (1) | CN203008474U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545061A (en) * | 2015-12-24 | 2016-05-04 | 广东迪生电力钢构器材有限公司 | Novel power transmission tower capable of achieving safe and convenient construction |
| CN105569414A (en) * | 2015-12-24 | 2016-05-11 | 广东迪生电力钢构器材有限公司 | Cup type tower safer and more convenient to construct |
| CN106088774A (en) * | 2016-08-08 | 2016-11-09 | 成都城电电力工程设计有限公司 | A kind of 500kV single back line bores more extra high voltage line wineglass tower |
| CN106285171A (en) * | 2016-09-29 | 2017-01-04 | 江苏神马电力股份有限公司 | The tower head of a kind of transmission tower and transmission tower |
| CN106555501A (en) * | 2016-09-26 | 2017-04-05 | 安徽华电工程咨询设计有限公司 | A kind of cat-head transmission tower suitable for single time overhead transmission line cable T joint |
| CN106639492A (en) * | 2016-12-22 | 2017-05-10 | 国网福建省电力有限公司 | 3V bunch iron tower and construction process thereof |
| CN110485791A (en) * | 2019-09-02 | 2019-11-22 | 中国能源建设集团湖南省电力设计院有限公司 | A kind of gradient slope gun shaped single loop tangent tower |
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2012
- 2012-12-21 CN CN 201220712755 patent/CN203008474U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545061A (en) * | 2015-12-24 | 2016-05-04 | 广东迪生电力钢构器材有限公司 | Novel power transmission tower capable of achieving safe and convenient construction |
| CN105569414A (en) * | 2015-12-24 | 2016-05-11 | 广东迪生电力钢构器材有限公司 | Cup type tower safer and more convenient to construct |
| CN106088774A (en) * | 2016-08-08 | 2016-11-09 | 成都城电电力工程设计有限公司 | A kind of 500kV single back line bores more extra high voltage line wineglass tower |
| CN106555501A (en) * | 2016-09-26 | 2017-04-05 | 安徽华电工程咨询设计有限公司 | A kind of cat-head transmission tower suitable for single time overhead transmission line cable T joint |
| CN106285171A (en) * | 2016-09-29 | 2017-01-04 | 江苏神马电力股份有限公司 | The tower head of a kind of transmission tower and transmission tower |
| 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 |
| CN106285171B (en) * | 2016-09-29 | 2020-05-12 | 江苏神马电力股份有限公司 | Tower head of transmission tower and transmission tower |
| CN106639492A (en) * | 2016-12-22 | 2017-05-10 | 国网福建省电力有限公司 | 3V bunch iron tower and construction process thereof |
| CN110485791A (en) * | 2019-09-02 | 2019-11-22 | 中国能源建设集团湖南省电力设计院有限公司 | A kind of gradient slope gun shaped single loop tangent tower |
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Owner name: CHINA POWER ENGINEERING CONSULTING GROUP SOUTHWEST Free format text: FORMER NAME: SOUTHWEST ELECTRIC POWER DESIGN INSTITUTE OF CHINA POWER ENGINEERING CONSULTING GROUP CORPORATION |
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| CP01 | Change in the name or title of a patent holder |
Address after: 610021 Dongfeng Road, Chengdu, Sichuan, No. 18, No. Patentee after: Southwest Electric Power Design Institute CO., Ltd. of China Power Engineering Consulting Group Address before: 610021 Dongfeng Road, Chengdu, Sichuan, No. 18, No. Patentee before: SOUTHWEST ELECTRIC POWER DESIGN INSTITUTE OF CHINA POWER ENGINEERING CONSULTING Group Corp. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130619 |