CN203247919U - 220kV-electric transmission line double-return tangent tower used in wind area with air speed of 28 meters per second and altitude below 4000 meters - Google Patents
220kV-electric transmission line double-return tangent tower used in wind area with air speed of 28 meters per second and altitude below 4000 meters Download PDFInfo
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- CN203247919U CN203247919U CN 201320076326 CN201320076326U CN203247919U CN 203247919 U CN203247919 U CN 203247919U CN 201320076326 CN201320076326 CN 201320076326 CN 201320076326 U CN201320076326 U CN 201320076326U CN 203247919 U CN203247919 U CN 203247919U
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Abstract
The utility model discloses a 220kV-electric transmission line double-return tangent tower used in a wind area with air speed of 28 meters per second and altitude below 4000 meters. The 220kV-electric transmission line double-return tangent tower comprises tower legs, a tower body and a tower head, wherein the tower body is a one-time-slope-varying tower body. The tower head comprises a ground wire support and a wire cross arm, and is in a drum shape. The wire hanging points of the front end of the ground wire support is of a triangular tower structure, and the wire cross arm is in a triangular cross arm shape. The wire cross arm comprises an upper cross arm structure, a middle cross arm structure and a lower cross arm structure all of which are vertically arranged. Wires are arranged in series in an I-shaped mode on the wire cross arm, and are vertically arranged. Connecting legs of the tower body are non-public legs. The 220kV-electric transmission line double-return tangent tower can be used normally under the special environment in the Tibet region, the discharging risks cannot be produced, cost is controlled to the maximum, and the 220kV-electric transmission line double-return tangent tower can meet special application demands of 28m/s wind areas and complex climate and topographic conditions.
Description
Technical field
The utility model relates to the two tangent towers that return of the following 28m wind of a kind of height above sea level 4000m district 220kV transmission line of electricity.
Background technology
Tibet Autonomous Region's height above sea level is main parts of Qinghai-Tibet Platean about 4000 meters, and the title of " roof of the world " is arranged.Along with the Tibet region is day by day 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 there is special requirement, sets 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, need one of design to be used for the following regional 28m/s wind district 220kV transmission line of electricity of height above sea level 4000m.Because 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 for above-mentioned situation, provides the following 28m wind of a kind of height above sea level 4000m district 220kV transmission line of electricity two tangent towers that return.
The purpose of this utility model realizes by following technical proposals:
The two tangent towers that return of the following 28m wind of a kind of height above sea level 4000m district 220kV transmission line of electricity comprise tower leg, body of the tower and tower head, and described body of the tower is for once becoming sloping body of the tower; Tower head comprises earth wire support and wire cross-arm, described tower head pattern is drum type, the front end hanging wire point of described earth wire support is the triangle tower structure, described wire cross-arm is triangle cross-arm pattern, described wire cross-arm comprises the upper cross-arm of vertical arrangement, middle cross-arm, lower cross-arm three layer construction, I string is arranged wire on it, the wire vertical arrangement, and the leg that connects of described body of the tower is unshared leg.
As optimal way, earth wire support length A 1 is 8000mm, upper cross-arm length A 2 is 6600 mm, the length A 3 of middle cross-arm is 7950 mm, the length A 4 of lower cross-arm is 6950 mm, once become the wide A5 of groove and be 3600 mm, it is 10200 mm that positive full root is opened A6, earth wire support height B 1 is 2000 mm, and upper cross-arm is 10100 mm to the height B 2 of middle cross-arm, and middle cross-arm is 9500 mm to the height B 3 of lower cross-arm, the tower head height B is 22200 mm, lower cross-arm is 3000 mm to the height C1 of knick point, and the high C2 of tower leg is 11000 mm, and exhaling high C is 36000 mm.
As optimal way, earth wire support length A 1 is 8550mm, upper cross-arm length A 2 is 7050 mm, the length A 3 of middle cross-arm is 8500 mm, the length A 4 of lower cross-arm is 7500mm, once become the wide A5 of groove and be 3800 mm, it is 11000 mm that positive full root is opened A6, earth wire support height B 1 is 2000 mm, and upper cross-arm is 10300 mm to the height B 2 of middle cross-arm, and middle cross-arm is 9600 mm to the height B 3 of lower cross-arm, the tower head height B is 22500 mm, lower cross-arm is 3000 mm to the height C1 of knick point, and the high C2 of tower leg is 12000 mm, and exhaling high C is 39000 mm.
As optimal way, earth wire support length A 1 is 8950mm, upper cross-arm length A 2 is 7400 mm, the length A 3 of middle cross-arm is 8900 mm, the length A 4 of lower cross-arm is 7900mm, once become the wide A5 of groove and be 4000 mm, it is 11200 mm that positive full root is opened A6, earth wire support height B 1 is 2000 mm, and upper cross-arm is 10600 mm to the height B 2 of middle cross-arm, and middle cross-arm is 9900 mm to the height B 3 of lower cross-arm, the tower head height B is 23100 mm, lower cross-arm is 3000 mm to the height C1 of knick point, and the high C2 of tower leg is 12000 mm, and exhaling high C is 39000 mm.
As optimal way, earth wire support length A 1 is 8950mm, upper cross-arm length A 2 is 7400 mm, the length A 3 of middle cross-arm is 8900 mm, the length A 4 of lower cross-arm is 7900mm, once become the wide A5 of groove and be 4200 mm, it is 11400 mm that positive full root is opened A6, earth wire support height B 1 is 2000 mm, and upper cross-arm is 11100 mm to the height B 2 of middle cross-arm, and middle cross-arm is 10400 mm to the height B 3 of lower cross-arm, the tower head height B is 24100 mm, lower cross-arm is 3000 mm to the height C1 of knick point, and the high C2 of tower leg is 12000 mm, and exhaling high C is 39000 mm.
As optimal way, described tower leg is unshared leg, 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, 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 are as follows:
1 arrangement of conductor and serial type: adopt the mode of " 3I " string vertical arrangement, good looking appearance not only, and make steel tower stressed evenly, tower weight is lighter, has obvious economic advantages.
2 tower head patterns: the tower head pattern is " drum type ", and profile is light and handy, and power transmission is clear; The node requirement on machining accuracy is lower, easy for installation.
3 cross-arm patterns: the wire 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.
4 earth wire support patterns: the front end hanging wire point of earth wire support is the triangle tower structure, has avoided hanging wire position angle steel directly to be subjected to curved, has guaranteed the integral rigidity of upper cross-arm and earth wire support.
5 bodies of the tower connect leg: all connect leg and all adopt unshared leg, make the unequal leg of steel tower more can satisfy the landform requirement of Lhasa periphery cliffy mountain, reduce engineering evolution amount, satisfy the requirement that the Tibet region environment-protective water is protected.
6, 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.
Among the figure, 1 is tower leg, and 2 is body of the tower, and 3 is tower head, and 4 is earth wire support, and 5 is upper cross-arm, and 6 is middle cross-arm, and 7 is lower cross-arm.
The specific embodiment
Below in conjunction with specific embodiments and the drawings the utility model is further described.
As shown in Figure 1, the two tangent towers that return of the following 28m wind of a kind of height above sea level 4000m district 220kV transmission line of electricity comprise tower leg 1, body of the tower 2 and tower head 3, and described body of the tower 2 is for once becoming sloping body of the tower; Tower head 3 comprises earth wire support 4 and wire cross-arm, described tower head pattern is drum type, the front end hanging wire point of described earth wire support is the triangle tower structure, described wire cross-arm is triangle cross-arm pattern, described wire cross-arm comprises upper cross-arm 5, middle cross-arm 6, lower cross-arm 7 three layer constructions of vertical arrangement, I string is arranged wire on it, the wire vertical arrangement, and the leg that connects of described body of the tower is unshared leg.
The variation of size can have following several scheme:
Scheme one: earth wire support length A 1 is 8000mm, upper cross-arm length A 2 is 6600 mm, the length A 3 of middle cross-arm is 7950 mm, the length A 4 of lower cross-arm is 6950 mm, once become the wide A5 of groove and be 3600 mm, it is 10200 mm that positive full root is opened A6, earth wire support height B 1 is 2000 mm, upper cross-arm is 10100 mm to the height B 2 of middle cross-arm, middle cross-arm is 9500 mm to the height B 3 of lower cross-arm, and the tower head height B is 22200 mm, and lower cross-arm is 3000 mm to the height C1 of knick point, the high C2 of tower leg is 11000 mm, and exhaling high C is 36000 mm.
Scheme two: earth wire support length A 1 is 8550mm, upper cross-arm length A 2 is 7050 mm, the length A 3 of middle cross-arm is 8500 mm, the length A 4 of lower cross-arm is 7500mm, once become the wide A5 of groove and be 3800 mm, it is 11000 mm that positive full root is opened A6, earth wire support height B 1 is 2000 mm, upper cross-arm is 10300 mm to the height B 2 of middle cross-arm, middle cross-arm is 9600 mm to the height B 3 of lower cross-arm, and the tower head height B is 22500 mm, and lower cross-arm is 3000 mm to the height C1 of knick point, the high C2 of tower leg is 12000 mm, and exhaling high C is 39000 mm.
Scheme three: earth wire support length A 1 is 8950mm, upper cross-arm length A 2 is 7400 mm, the length A 3 of middle cross-arm is 8900 mm, the length A 4 of lower cross-arm is 7900mm, once become the wide A5 of groove and be 4000 mm, it is 11200 mm that positive full root is opened A6, earth wire support height B 1 is 2000 mm, upper cross-arm is 10600 mm to the height B 2 of middle cross-arm, middle cross-arm is 9900 mm to the height B 3 of lower cross-arm, and the tower head height B is 23100 mm, and lower cross-arm is 3000 mm to the height C1 of knick point, the high C2 of tower leg is 12000 mm, and exhaling high C is 39000 mm.
Scheme four: earth wire support length A 1 is 8950mm, upper cross-arm length A 2 is 7400 mm, the length A 3 of middle cross-arm is 8900 mm, the length A 4 of lower cross-arm is 7900mm, once become the wide A5 of groove and be 4200 mm, it is 11400 mm that positive full root is opened A6, earth wire support height B 1 is 2000 mm, upper cross-arm is 11100 mm to the height B 2 of middle cross-arm, middle cross-arm is 10400 mm to the height B 3 of lower cross-arm, and the tower head height B is 24100 mm, and lower cross-arm is 3000 mm to the height C1 of knick point, the high C2 of tower leg is 12000 mm, and exhaling high C is 39000 mm.
Described tower leg 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.
Described tangent tower adopts equal leg angle to build, and described equal leg angle is bolted each other.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (7)
1. the two tangent towers that return of the following 28m wind of height above sea level 4000m district 220kV transmission line of electricity comprise tower leg, body of the tower and tower head, and it is characterized in that: described body of the tower is for once becoming sloping body of the tower; Tower head comprises earth wire support and wire cross-arm, described tower head pattern is drum type, the front end hanging wire point of described earth wire support is the triangle tower structure, described wire cross-arm is triangle cross-arm pattern, described wire cross-arm comprises the upper cross-arm of vertical arrangement, middle cross-arm, lower cross-arm three layer construction, I string is arranged wire on it, the wire vertical arrangement, and the leg that connects of described body of the tower is unshared leg.
2. two tangent towers that return of the following 28m wind of height above sea level 4000m as claimed in claim 1 district 220kV transmission line of electricity is characterized in that:
Earth wire support length A 1 is 8000mm, and upper cross-arm length A 2 is 6600 mm, and the length A 3 of middle cross-arm is 7950 mm, and the length A 4 of lower cross-arm is 6950 mm, once becomes the wide A5 of groove and is 3600 mm, and it is 10200 mm that positive full root is opened A6,
Earth wire support height B 1 is 2000 mm, and upper cross-arm is 10100 mm to the height B 2 of middle cross-arm, and middle cross-arm is 9500 mm to the height B 3 of lower cross-arm, and the tower head height B is 22200 mm,
Lower cross-arm is 3000 mm to the height C1 of knick point, and the high C2 of tower leg is 11000 mm, and exhaling high C is 36000 mm.
3. two tangent towers that return of the following 28m wind of height above sea level 4000m as claimed in claim 1 district 220kV transmission line of electricity, it is characterized in that: earth wire support length A 1 is 8550mm, upper cross-arm length A 2 is 7050 mm, the length A 3 of middle cross-arm is 8500 mm, the length A 4 of lower cross-arm is 7500mm, once become the wide A5 of groove and be 3800 mm, it is 11000 mm that positive full root is opened A6
Earth wire support height B 1 is 2000 mm, and upper cross-arm is 10300 mm to the height B 2 of middle cross-arm, and middle cross-arm is 9600 mm to the height B 3 of lower cross-arm, and the tower head height B is 22500 mm,
Lower cross-arm is 3000 mm to the height C1 of knick point, and the high C2 of tower leg is 12000 mm, and exhaling high C is 39000 mm.
4. two tangent towers that return of the following 28m wind of height above sea level 4000m as claimed in claim 1 district 220kV transmission line of electricity, it is characterized in that: earth wire support length A 1 is 8950mm, upper cross-arm length A 2 is 7400 mm, the length A 3 of middle cross-arm is 8900 mm, the length A 4 of lower cross-arm is 7900mm, once become the wide A5 of groove and be 4000 mm, it is 11200 mm that positive full root is opened A6
Earth wire support height B 1 is 2000 mm, and upper cross-arm is 10600 mm to the height B 2 of middle cross-arm, and middle cross-arm is 9900 mm to the height B 3 of lower cross-arm, and the tower head height B is 23100 mm,
Lower cross-arm is 3000 mm to the height C1 of knick point, and the high C2 of tower leg is 12000 mm, and exhaling high C is 39000 mm.
5. two tangent towers that return of the following 28m wind of height above sea level 4000m as claimed in claim 1 district 220kV transmission line of electricity, it is characterized in that: earth wire support length A 1 is 8950mm, upper cross-arm length A 2 is 7400 mm, the length A 3 of middle cross-arm is 8900 mm, the length A 4 of lower cross-arm is 7900mm, once become the wide A5 of groove and be 4200 mm, it is 11400 mm that positive full root is opened A6
Earth wire support height B 1 is 2000 mm, and upper cross-arm is 11100 mm to the height B 2 of middle cross-arm, and middle cross-arm is 10400 mm to the height B 3 of lower cross-arm, and the tower head height B is 24100 mm,
Lower cross-arm is 3000 mm to the height C1 of knick point, and the high C2 of tower leg is 12000 mm, and exhaling high C is 39000 mm.
6. two tangent towers that return of the following 28m wind of height above sea level 4000m as claimed in claim 1 district 220kV transmission line of electricity, it is characterized in that: described tower leg is unshared leg, namely only limits the height of one leg, all the other tower leg height are adjusted according to the landform needs.
7. such as the two tangent towers that return of the following 28m wind of the described height above sea level 4000m of any one among claim 1-6 district 220kV transmission line of electricity, it 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 201320076326 CN203247919U (en) | 2013-02-19 | 2013-02-19 | 220kV-electric transmission line double-return tangent tower used in wind area with air speed of 28 meters per second and altitude below 4000 meters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320076326 CN203247919U (en) | 2013-02-19 | 2013-02-19 | 220kV-electric transmission line double-return tangent tower used in wind area with air speed of 28 meters per second and altitude below 4000 meters |
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| Publication Number | Publication Date |
|---|---|
| CN203247919U true CN203247919U (en) | 2013-10-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320076326 Expired - Lifetime CN203247919U (en) | 2013-02-19 | 2013-02-19 | 220kV-electric transmission line double-return tangent tower used in wind area with air speed of 28 meters per second and altitude below 4000 meters |
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| CN (1) | CN203247919U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821401A (en) * | 2014-01-03 | 2014-05-28 | 国家电网公司 | Method for designing transmission tower striding over high speed railway |
| CN104652912A (en) * | 2014-12-25 | 2015-05-27 | 徐光第 | Tri-fork cross arm power transmission tower |
-
2013
- 2013-02-19 CN CN 201320076326 patent/CN203247919U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821401A (en) * | 2014-01-03 | 2014-05-28 | 国家电网公司 | Method for designing transmission tower striding over high speed railway |
| CN103821401B (en) * | 2014-01-03 | 2016-04-20 | 国家电网公司 | A kind of method for designing of crossing over high-speed railway transmission tower |
| CN104652912A (en) * | 2014-12-25 | 2015-05-27 | 徐光第 | Tri-fork cross arm power transmission tower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
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 |
|
| 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. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131023 |