CN201753534U - Ultra-high voltage DC heavy-ice separate tower - Google Patents
Ultra-high voltage DC heavy-ice separate tower Download PDFInfo
- Publication number
- CN201753534U CN201753534U CN 201020504090 CN201020504090U CN201753534U CN 201753534 U CN201753534 U CN 201753534U CN 201020504090 CN201020504090 CN 201020504090 CN 201020504090 U CN201020504090 U CN 201020504090U CN 201753534 U CN201753534 U CN 201753534U
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- Prior art keywords
- tower
- lead wire
- high voltage
- heavy
- ultra
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- Expired - Lifetime
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 16
- 229910052742 iron Inorganic materials 0.000 abstract description 8
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 abstract 8
- 239000000725 suspension Substances 0.000 abstract 2
- 230000005540 biological transmission Effects 0.000 description 11
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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- Suspension Of Electric Lines Or Cables (AREA)
Abstract
The utility model discloses an ultra-high voltage DC heavy-ice separate tower which comprises a first tower body (1) and a second tower body (2). The first tower body (1) and the second tower body (2) are configured adjacently and are respectively provided with a lead wire suspension point (3). The lead wire suspension points (3) are respectively used for suspending an anode lead wire and a cathode lead wire of the DC lead wire. The ultra-high voltage DC heavy-ice separate tower has the following advantages: simple structure, ingenious concept, and suitability for the state of ultra-high voltage DC heavy-ice area. The problem generated by a form that the DC lead wire is suspended on the cross arm of the tower with a shape similar with a Chinese character ''gan'' originally. In the technical solution of the utility model, the anode DC lead wire and the cathode DC lead wire are directly suspended on the tower body thereby preventing a state that the iron tower bears the torque. The force bearing state of the iron tower at the ultra-high voltage heavy-ice area is improved. The tower weight is reduced correspondingly. The safety and economic performance are improved in engineering application thereby obtaining a purpose of cost reduction when the design requirement is ensured.
Description
Technical field
The utility model belongs to the transmission facility technical field, relates to extra-high voltage direct-current heavy ice split tower concretely.
Background technology
± 800kV extra-high voltage direct-current transmission engineering is the present the highest DC power transmission line of electric pressure in the world, the DC power transmission line maximum voltage grade that put into operation of China is ± 500kV before this, and abroad the DC power transmission line maximum voltage grade that has put into operation is ± 660kV.
Compare with routine ± 500kV DC power transmission line, the characteristics of ± 800kV extra high voltage direct current transmission line: 1. transmission capacity is big, is ± about 2 times of 500kV DC power transmission line; 2. under the equal conditions, tower height ± 500kV wants about high 15.0m; 3. the iron tower load is big; 4. cross-arm is long, tower head is big.
Doing the font tower is routine ± 500kV DC power transmission line the most frequently used tower both at home and abroad, belongs to ripe tower, characteristics such as have that form is succinct, power transmission is clear, tower weight is lighter, basic cost saving, busy line corridor be narrower, and operation maintenance is convenient.But when dried font angle tower commonly used is used in heavy icing area, because heavy icing area exists icing, wire breaking and inhomogeneous deicing, make iron tower bear great torsion, simultaneously since this tower lead hanging point away from body of the tower, make iron tower produce bigger torque, cause the torsional deflection of this tower big, anti-twisting property is relatively poor.
For ± 800kV extra-high voltage direct-current heavy icing area angle tower, because die opening very big (minimum needs 22m), its toggle is ± about 1.5 times of 500kV, according to calculating, moment of torsion is the principal element that influences heavy icing area angle tower tower weight.The tower weight that the moment of torsion that the moment of torsion that is produced when icing, wire breaking and inhomogeneous checking computations ice is produced causes is about 1.25 times of tower weight under the no torque condition.Therefore, how dwindling die opening, to reduce moment of torsion, reach the purpose that reduces tower weight, is the key that extra-high voltage heavy icing area angle tower pattern is optimized.And dried font angle tower commonly used, the principal element that produces torsion be the lead hanging point away from body of the tower, have above-mentioned pointed defective.
The utility model content
The purpose of this utility model provided a kind of simple in structure, can prevent effectively that body of the tower distortion is particularly useful for the split tower of extra-high voltage direct-current heavy icing area.
The technical solution of the utility model is as follows:
Extra-high voltage direct-current heavy ice split tower, this split tower comprises first body of the tower, second body of the tower, the adjacent layout with second body of the tower of described first body of the tower is provided with the lead hanging point on described first body of the tower and second body of the tower, this lead hanging point hangs the positive and negative polarities lead of dc wire respectively.
Adopt said structure lead hanging point position to move on on the body of the tower, then the toggle of the torque that produces is 0, and then iron tower is not just turned round situation, only for the moment of flexure combination, can reduce tower weight significantly thus.According to the force analysis of heavy icing area angle tower, we make former traditional same tower bipolar DC angle tower into " the split type angle tower " of one tower, one utmost point.
Be provided with the ground line bracket on the top of described first body of the tower and second body of the tower.
Second body of the tower 2 is provided with the wire jumper cross-arm therein.
Beneficial effect: the utility model is simple in structure, be skillfully constructed, at the situation of extra-high voltage direct-current heavy icing area, solved original because dc wire hangs on the problem that form produced of doing font tower cross-arm, positive and negative dc wire all directly hangs on the body of the tower in this programme, avoided iron tower to be subjected to the situation of moment of torsion like this, make extra-high voltage heavy icing area iron tower stressing conditions better, the corresponding minimizing of tower weight, engineering is used upward safer more economical, thereby can when guaranteeing designing requirement, can reach the purpose that reduces cost.
Description of drawings
The utility model will illustrate by example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 structural representation of the present utility model.
The specific embodiment
As shown in Figure 1: extra-high voltage direct-current heavy ice split tower, this split tower comprises first body of the tower 1, second body of the tower 2, described first body of the tower 1 and second body of the tower, 2 adjacent layouts, be provided with lead hanging point 3 on described first body of the tower 1 and second body of the tower 2, this lead hanging point 3 hangs the positive and negative polarities lead of dc wire respectively.
Be provided with ground line bracket 4 on the top of described first body of the tower 1 and second body of the tower 2.
Second body of the tower 2 is provided with wire jumper cross-arm 5 therein.
Claims (3)
1. extra-high voltage direct-current heavy ice split tower, it is characterized in that: this split tower comprises first body of the tower (1), second body of the tower (2), described first body of the tower (1) and the adjacent layout of second body of the tower (2), be provided with lead hanging point (3) on described first body of the tower (1) and second body of the tower (2), this lead hanging point (3) hangs the positive and negative polarities lead of dc wire respectively.
2. extra-high voltage direct-current heavy ice split tower according to claim 1 is characterized in that: be provided with ground line bracket (4) on the top of described first body of the tower (1) and second body of the tower (2).
3. extra-high voltage direct-current heavy ice split tower according to claim 1 and 2, it is characterized in that: second body of the tower (2) is provided with wire jumper cross-arm (5) therein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020504090 CN201753534U (en) | 2010-08-25 | 2010-08-25 | Ultra-high voltage DC heavy-ice separate tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020504090 CN201753534U (en) | 2010-08-25 | 2010-08-25 | Ultra-high voltage DC heavy-ice separate tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201753534U true CN201753534U (en) | 2011-03-02 |
Family
ID=43621266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020504090 Expired - Lifetime CN201753534U (en) | 2010-08-25 | 2010-08-25 | Ultra-high voltage DC heavy-ice separate tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201753534U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929412A (en) * | 2015-06-10 | 2015-09-23 | 国核电力规划设计研究院 | Extra-high-voltage alternating current split linear tower |
| CN110306861A (en) * | 2019-08-13 | 2019-10-08 | 中国电建集团贵州电力设计研究院有限公司 | A kind of combined type power transmission tower suitable for heavy icing area |
-
2010
- 2010-08-25 CN CN 201020504090 patent/CN201753534U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929412A (en) * | 2015-06-10 | 2015-09-23 | 国核电力规划设计研究院 | Extra-high-voltage alternating current split linear tower |
| CN104929412B (en) * | 2015-06-10 | 2017-05-24 | 国核电力规划设计研究院 | Extra-high-voltage alternating current split linear tower |
| CN110306861A (en) * | 2019-08-13 | 2019-10-08 | 中国电建集团贵州电力设计研究院有限公司 | A kind of combined type power transmission tower suitable for heavy icing area |
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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 |
|
| CP03 | Change of name, title or address |
Address after: 610041 No. 18 Dongfeng Road, Sichuan, Chengdu Patentee after: China Power Engineering Consulting Group Southwest Electric Power Design Institute Co., Ltd. Address before: 610041 18 power grid engineering branch of Dongfeng Road, Chengdu, Sichuan Patentee before: Southwest Electric Power Design Institute of China Power Engineering Consulting Group Corporation |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110302 |
|
| CX01 | Expiry of patent term |