CN201695737U - Double-loop high-voltage overhead line iron tower - Google Patents
Double-loop high-voltage overhead line iron tower Download PDFInfo
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- CN201695737U CN201695737U CN2010202322416U CN201020232241U CN201695737U CN 201695737 U CN201695737 U CN 201695737U CN 2010202322416 U CN2010202322416 U CN 2010202322416U CN 201020232241 U CN201020232241 U CN 201020232241U CN 201695737 U CN201695737 U CN 201695737U
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Abstract
The utility model discloses a double-loop high-voltage overhead line iron tower, which comprises a tower body (21) and a tower head (22), wherein the tower head (22) is arranged at the top part of the tower body and is used for carrying a first loop and a second loop of electricity transmission conducting wires, the tower head (22) further comprises a first cross beam (23) and a second cross beam (24) which are in horizontal arrangement, in addition, the left end, the middle end and the right end of each layer of cross beam are respectively provided with a phase electricity transmission conducting wire, in addition, three phase conducting wires are in a basically horizontal state, the two electricity transmission loops are respectively positioned at both sides of the tower body, and three phase electricity transmission conducting wires of the same loop are in approximately triangular arrangement. When being adopted, the double-loop high-voltage overhead line iron tower of the utility model effectively reduces the height and the weight of the iron tower, so the load and the basic action force of the iron tower can be reduced, and at the same time, the probability of tower top lightning strike can be reduced.
Description
Technical field
The utility model relates to a kind of transmission facility tower structure, relates in particular to a kind of high voltage overhead lines iron tower with two transmitting loops.
Background technology
At present, the tangent suspension tower that the conventional double loop of China 500KV high voltage overhead lines uses is the conventional tangent tower that the three-phase conducting wire vertical arrangement is suspended on the iron tower both sides, and the iron tower structure that adopts this implementation as shown in Figure 1.Comprise body of the tower 11 and tower head 12, described tower head 12 is parallel to be laid with three layers of cross-arm 13, and three layers of cross-arm 13 are symmetry with respect to body of the tower 11 and lay, and is positioned on the same vertical plane.
Wherein, two circuit six phase transmission pressures are evenly distributed on three layers of cross-arm, and the two-phase transmission pressure is laid in the both sides of every layer of relative body of the tower symmetry of cross-arm.As seen, adopt this implementation, satisfy at the lead distance to the ground under the prerequisite of rules requirement, owing to need to lay three layers of cross-arm, so the height of iron tower will reach 60m-70m, shared circuit corridor average out to 22m usually.Because the height of iron tower surpasses 60m usually, so the anti-damage to crops caused by thunder ability of iron tower is relatively poor, and the setting of three layers of cross-arm also significantly increased the weight of whole iron tower, makes iron tower engineering body cost cost improve.
33m exhale the common tower height of high iron tower all more than the 56m, convergence 60m or more than the 60m, adjust that coefficient is trembled convergence 1.6 or greater than 1.6 by existing DL/T5092-1999 " 110-500Kv aerial power transmission line designing technique rules " wind load,, need adopt according to existing national regulation " loading code for design of building structures " to increase piecemeal from down to up and weighted average should be less than 1.6 value to surpassing the iron tower of 60m by existing DL/T5092-1999 " 110-500Kv aerial power transmission line designing technique rules " requirement.500kv double loop iron tower when therefore in the past carrying out SDJ3-79 according to rules DL/T5092-1999 ratio and frame consumption steel index are taller.From engineering generally speaking, the blast of 500kv double loop tangent tower adjust coefficient near or greater than 1.6.Therefore, must cause the raising of engineering body cost, as seen reduce full tower height degree, blast is adjusted coefficient, and to be controlled at 1.5 are the feasible solutions that reduce consumption steel index.
The utility model content
Because the above-mentioned defective of prior art, technical problem to be solved in the utility model provides a kind of double loop high voltage overhead lines iron tower and transmission pressure arrangement architecture thereof of new structure, it adopts double-deck cross-arm structure and improved transmission pressure arrangement mode, has solved iron tower excessive height in the prior art, problem such as overweight.
For achieving the above object, the utility model provides a kind of double loop high voltage overhead lines iron tower, comprise body of the tower (21), be arranged on the tower head (22) that is used to carry first loop and the second loop transmission pressure at tower body top, wherein said tower head (22) further comprises horizontally disposed first cross-arm (23) and second cross-arm (24), described first cross-arm (23) is positioned at the top of described second cross-arm (24), described first cross-arm (23) and second cross-arm (24) are symmetrically distributed in described body of the tower (21) both sides respectively, and be positioned on the same vertical plane left end of described first cross-arm (23) and second cross-arm (24), intermediate ends and right-hand member are respectively arranged with the left end that articulates described transmission pressure and articulate a little, the centre articulates a little and right-hand member articulates a little totally three and articulates a little.
Further, described tower head (22) can further include vertically disposed left side wall (25) and right side wall (26), described left side wall (25) and right side wall (26) are symmetrically distributed in described body of the tower (21) both sides, described first cross-arm (23), second cross-arm (24), the first half of left side wall (25) and right side wall (26) forms tower window (27), second cross-arm (24), the latter half of left side wall (25) and right side wall (26) forms down tower window (28), the centre of wherein said first cross-arm (23) articulates and a little is positioned at the described tower window (27) of going up, and the centre of described second cross-arm (24) articulates and a little is positioned at described tower window (28) down.
Preferably, the left end of described first cross-arm (23) articulates point, the centre articulates a little to articulate with right-hand member and a little articulates different three-phase conducting wires respectively, the transmission pressure that the centre of described first cross-arm (23) articulates a little is " V " type layout, and described first cross-arm (23) is gone up, and the three-phase power transmission lead of laying is approximate to be horizontal.
Preferably, the left end of described second cross-arm (24) articulates point, the centre articulates a little to articulate with right-hand member and a little articulates different three-phase conducting wires respectively, the transmission pressure that the centre of described second cross-arm (24) articulates a little is " V " type layout, and described second cross-arm (24) is gone up, and the three-phase power transmission lead of laying is approximate to be horizontal.
Preferably, in the three-phase power transmission lead in described first loop, wherein a phase transmission pressure is positioned on first cross-arm (23), and all the other two-phase transmission pressures are positioned on second cross-arm (24), and the three-phase power transmission lead in described first loop is subtriangular arrangement.
Preferably, in the three-phase power transmission lead in described second loop, wherein a phase transmission pressure is positioned on second cross-arm (24), and all the other two-phase transmission pressures are positioned on described first cross-arm (23), and the three-phase power transmission lead in described second loop is subtriangular arrangement.
Preferably, the three-phase power transmission lead in described first loop and the three-phase power transmission lead in described second loop lay respectively at the not homonymy of described body of the tower (21), and the three-phase power transmission lead in the three-phase power transmission lead in first loop and described second loop does not occur simultaneously.
Adopt the vertical arrangement iron tower of identical absolute altitude in the technical solution of the utility model and the prior art to compare, have following useful technique effect at least:
(1) the iron tower height has reduced about 10m, effectively reduces the load and the basic role power of iron tower, has also reduced the probability of thunderbolt cat head simultaneously, and lightning protection capability is promoted, and tower body weight reduces.
(2) double loop six phase transmission pressures adopt new arrangement mode, it is the distribution three-phase power transmission lead on every layer of cross-arm, and be horizontal, and the V-shaped setting of intermediate ends lead, reduced tower window size, further reduced iron tower weight, single basic iron tower steel have reduced 4 tons of-5 tons/bases, the construction costs cost reduces, and has also effectively improved the electromagnetic field intensity under the trolley line simultaneously.
Be described further below with reference to the technique effect of accompanying drawing, to understand the purpose of this utility model, feature and effect fully design of the present utility model, concrete structure and generation.
Description of drawings
Figure 1 shows that the structural representation of the double loop high voltage overhead lines iron tower that adopts prior art;
Figure 2 shows that the structural representation that adopts a preferred embodiment of the present utility model.
The specific embodiment
With reference to figure 2, be depicted as structural representation according to a kind of double loop high voltage overhead lines iron tower of a preferred embodiment of the present utility model.This double loop high voltage overhead lines iron tower comprises body of the tower 21 and tower head 22 two parts.Wherein, body of the tower 21 is similar with body of the tower 11 structures shown in Figure 1.
Described tower head 22 further comprises horizontally disposed first cross-arm 23 and second cross-arm 24, described first cross-arm 23 is positioned at the top of second cross-arm 24, and first cross-arm 23 and second cross-arm 24 are with respect to body of the tower 21 and are symmetrical set, and two-layer cross-arm is positioned at same vertical plane.
Described tower head 22 further comprises vertically disposed left side wall 25 and right side wall 26, and left side wall 25 and right side wall 26 are with respect to body of the tower 21 and are symmetrical set.Thereby, form a closed space by the first half of described first cross-arm 23, second cross-arm 24, left side wall 25 and right side wall 26, promptly go up tower window 27; The latter half by second cross-arm 24, left side wall 25 and right side wall 26 forms another closed space, promptly descends tower window 28.
The left end of described first cross-arm 23, intermediate ends and right-hand member are respectively arranged with that the left end that articulates described transmission pressure articulates a little 29, the centre articulate a little 30 and right-hand member articulate a little 31 totally three articulate a little, the centre of described first cross-arm 23 articulates a little 30 and is positioned at the described tower window 27 of going up.
The left end of described second cross-arm 24, intermediate ends and right-hand member are respectively arranged with that the left end that articulates described transmission pressure articulates a little 32, the centre articulate a little 33 and right-hand member articulate a little 34 totally three articulate a little, the centre of described second cross-arm 24 articulates a little 33 and is positioned at described tower window 28 down.
As seen, adopt the double loop high voltage overhead lines iron tower of the utility model one preferred embodiment shown in Figure 2, its two-layer cross-arm type structure decrease the setting of one deck cross-arm, therefore can effectively reduce the height and the iron tower weight of iron tower.For example, compare with the 500kv double loop iron tower of identical absolute altitude, the iron tower height has reduced about 10m.The probability that reduces also to have reduced the thunderbolt cat head of while tower body height, lightning protection capability is promoted, and has reduced the load and the basic role power of iron tower, also makes the construction costs cost reduce.
Adopt the double loop high voltage overhead lines iron tower of the utility model one preferred embodiment shown in Figure 2, the six phase transmission pressures that amount to of its two transmitting loop adopt following wire structures.
Below with the three-phase power transmission lead in first loop be A phase, B mutually and C mutually, the three-phase power transmission lead in second loop be A ' phase, B ' mutually and C ' be the wire laying mode of example detailed description transmission pressure mutually.
In the three-phase power transmission lead in first loop, its A phase transmission pressure is positioned at the left end of first cross-arm 23, the left side that B phase transmission pressure is positioned at second cross-arm 24, and C phase transmission pressure is positioned at the middle-end of second cross-arm 24, is positioned at tower window 28 down.In the three-phase power transmission lead in second loop, its A ' phase transmission pressure is positioned at the middle-end of first cross-arm 23, promptly is positioned at tower window 27, and B ' phase transmission pressure is positioned at the right-hand member of first cross-arm 23, and C ' phase transmission pressure is positioned at the right-hand member of second cross-arm 24.
As seen, six phase transmission pressures are evenly distributed on described first cross-arm 23 and second cross-arm 24, and promptly every layer of cross-arm on average shared the three-phase power transmission lead.With necessarily there being a phase transmission pressure to belong to different transmitting loops in the three-phase power transmission lead of laying on one deck cross-arm with other two-phase transmission pressures.And the A phase that first cross-arm (23) go up to be laid, A ' are mutually and B ' the three-phase power transmission lead setting that is the level of state substantially altogether mutually; The B phase that second cross-arm (24) go up to be laid, C are mutually and C ' the three-phase power transmission lead setting that is the level of state substantially altogether mutually.
And, by A phase, B mutually and C be positioned at the left side of described body of the tower 21 in first loop formed of transmission pressure mutually, and be subtriangular arrangement.By A ' phase, B ' mutually and C ' be positioned at the right side of described body of the tower 22 in second loop formed of transmission pressure mutually, also be subtriangular arrangement, thereby do not occur simultaneously between two transmitting loops, influence with the electromagnetic interference of having avoided may causing each other.
In the preferred embodiment, transmission pressure and the transmission pressure that articulates a little of the middle-end of second cross-arm 24 that the middle-end of first cross-arm 23 articulates a little are the setting of " V " type, thereby have further reduced the size of tower window, have reduced the weight of iron tower.
In addition, the middle-end that the middle-end of first cross-arm 23 articulates a little with second cross-arm 24 articulates certain distance that a little can stagger, and promptly two articulates a little and is inclined to set on the common vertical plane at two-layer cross-arm place, rather than become vertical and be provided with.
Adopt the arrangement mode of the double loop six phase transmission pressures of above-mentioned the utility model one preferred embodiment, be that distribution on every layer of cross-arm is horizontal three-phase power transmission lead, and the arrangement architecture that the intermediate ends lead adopts " V " type to be provided with, not only reduced tower window size, further reduced iron tower weight, can make single basic iron tower steel reduce 4 tons of-5 tons/bases, also effectively improve the electromagnetic field intensity under the trolley line simultaneously.
More than describe preferred embodiment of the present utility model in detail.The ordinary skill that should be appreciated that this area need not creative work and just can make many modifications and variations according to design of the present utility model.Therefore, all technician in the art comply with design of the present utility model on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment, all should be in claim protection domain of the present utility model.
Claims (10)
1. double loop high voltage overhead lines iron tower, comprise body of the tower (21), be arranged on the tower head (22) that is used to carry first loop and the second loop transmission pressure at tower body top, it is characterized in that, described tower head (22) further comprises horizontally disposed first cross-arm (23) and second cross-arm (24), described first cross-arm (23) is positioned at the top of described second cross-arm (24), described first cross-arm (23) and second cross-arm (24) are symmetrically distributed in described body of the tower (21) both sides respectively, and be positioned on the same vertical plane left end of described first cross-arm (23) and second cross-arm (24), intermediate ends and right-hand member are respectively arranged with the left end that articulates described transmission pressure and articulate a little, the centre articulates a little and right-hand member articulates a little totally three and articulates a little.
2. double loop according to claim 1 high voltage overhead lines iron tower, it is characterized in that, described tower head (22) further comprises vertically disposed left side wall (25) and right side wall (26), described left side wall (25) and right side wall (26) are symmetrically distributed in described body of the tower (21) both sides, the first half of described first cross-arm (23), second cross-arm (24), left side wall (25) and right side wall (26) forms tower window (27), and the latter half of second cross-arm (24), left side wall (25) and right side wall (26) forms down tower window (28).
3. double loop according to claim 2 high voltage overhead lines iron tower is characterized in that, the centre of described first cross-arm (23) articulates and a little is positioned at the described tower window (27) of going up, and the centre of described second cross-arm (24) articulates and a little is positioned at described tower window (28) down.
4. double loop according to claim 3 high voltage overhead lines iron tower, it is characterized in that, the left end of described first cross-arm (23) articulates point, the centre articulates a little to articulate with right-hand member and a little articulates different three-phase conducting wires respectively, the transmission pressure that the centre of described first cross-arm (23) articulates a little is " V " type layout, and the three-phase power transmission lead on described first cross-arm (23) is the basic horizontal laying.
5. double loop according to claim 3 high voltage overhead lines iron tower, it is characterized in that, the left end of described second cross-arm (24) articulates point, the centre articulates a little to articulate with right-hand member and a little articulates different three-phase conducting wires respectively, the transmission pressure that the centre of described second cross-arm (24) articulates a little is " V " type layout, and the three-phase power transmission lead on described second cross-arm (24) is the basic horizontal laying.
6. double loop according to claim 1 high voltage overhead lines iron tower is characterized in that, in the three-phase power transmission lead in described first loop, wherein a phase transmission pressure is positioned on first cross-arm (23), and all the other two transmission pressures are positioned on second cross-arm (24).
7. double loop according to claim 6 high voltage overhead lines iron tower is characterized in that the three-phase power transmission lead in described first loop is subtriangular arrangement.
8. double loop according to claim 6 high voltage overhead lines iron tower is characterized in that, in the three-phase power transmission lead in described second loop, wherein a phase transmission pressure is positioned on second cross-arm (24), and all the other two transmission pressures are positioned on described first cross-arm (23).
9. double loop according to claim 8 high voltage overhead lines iron tower is characterized in that the three-phase power transmission lead in described second loop is subtriangular arrangement.
10. according to the described arbitrary double loop of claim 1-9 high voltage overhead lines iron tower, it is characterized in that, the three-phase power transmission lead in described first loop and the three-phase power transmission lead in described second loop lay respectively at the not homonymy of described body of the tower (21), and the three-phase power transmission lead in the three-phase power transmission lead in first loop and described second loop does not occur simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202322416U CN201695737U (en) | 2010-06-21 | 2010-06-21 | Double-loop high-voltage overhead line iron tower |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202322416U CN201695737U (en) | 2010-06-21 | 2010-06-21 | Double-loop high-voltage overhead line iron tower |
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| CN201695737U true CN201695737U (en) | 2011-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010202322416U Expired - Lifetime CN201695737U (en) | 2010-06-21 | 2010-06-21 | Double-loop high-voltage overhead line iron tower |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102817489A (en) * | 2012-09-11 | 2012-12-12 | 河北省电力勘测设计研究院 | Double-tower-window double-loop linear tower |
| CN103633601A (en) * | 2012-08-27 | 2014-03-12 | 国家电网公司 | Overhead incoming line structure |
| CN104060876A (en) * | 2014-07-04 | 2014-09-24 | 湖南省电力勘测设计院 | 500 kV double-circuit compact iron tower with upper window and lower window perpendicularly arranged |
| CN105298200A (en) * | 2015-10-21 | 2016-02-03 | 常熟风范电力设备股份有限公司 | Overhanging tower of 500 kV compact-type AC power transmission circuit in high-altitude area |
| CN105781215A (en) * | 2016-04-29 | 2016-07-20 | 邹平县供电公司 | Power transmission line iron tower device capable of realizing uniform sedimentation on basis of power transmission construction system |
| CN106088778A (en) * | 2016-08-08 | 2016-11-09 | 成都城电电力工程设计有限公司 | A kind of transmission line of electricity double loop wineglass tower |
| CN106567603A (en) * | 2016-10-27 | 2017-04-19 | 中国电力工程顾问集团西北电力设计院有限公司 | 750 kV wine glass composite cross arm tower |
| CN109458032A (en) * | 2018-12-07 | 2019-03-12 | 绍兴大明电力设计院有限公司 | Wear straight line narrow base tower in double loop |
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2010
- 2010-06-21 CN CN2010202322416U patent/CN201695737U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103633601A (en) * | 2012-08-27 | 2014-03-12 | 国家电网公司 | Overhead incoming line structure |
| CN103633601B (en) * | 2012-08-27 | 2016-08-03 | 国家电网公司 | Built on stilts incoming line structure |
| CN102817489A (en) * | 2012-09-11 | 2012-12-12 | 河北省电力勘测设计研究院 | Double-tower-window double-loop linear tower |
| CN104060876A (en) * | 2014-07-04 | 2014-09-24 | 湖南省电力勘测设计院 | 500 kV double-circuit compact iron tower with upper window and lower window perpendicularly arranged |
| CN105298200A (en) * | 2015-10-21 | 2016-02-03 | 常熟风范电力设备股份有限公司 | Overhanging tower of 500 kV compact-type AC power transmission circuit in high-altitude area |
| CN105298200B (en) * | 2015-10-21 | 2017-12-19 | 常熟风范电力设备股份有限公司 | Dangle tower for high altitude localities 500kV compacts transmission line of alternation current |
| CN105781215A (en) * | 2016-04-29 | 2016-07-20 | 邹平县供电公司 | Power transmission line iron tower device capable of realizing uniform sedimentation on basis of power transmission construction system |
| CN105781215B (en) * | 2016-04-29 | 2017-12-22 | 邹平县供电公司 | It is a kind of based on transmission of electricity construction system can uniform settlement iron tower of power transmission line device |
| CN106088778A (en) * | 2016-08-08 | 2016-11-09 | 成都城电电力工程设计有限公司 | A kind of transmission line of electricity double loop wineglass tower |
| CN106567603A (en) * | 2016-10-27 | 2017-04-19 | 中国电力工程顾问集团西北电力设计院有限公司 | 750 kV wine glass composite cross arm tower |
| CN109458032A (en) * | 2018-12-07 | 2019-03-12 | 绍兴大明电力设计院有限公司 | Wear straight line narrow base tower in double loop |
| CN109458032B (en) * | 2018-12-07 | 2024-03-26 | 绍兴大明电力设计院有限公司 | Double-loop body-penetrating straight line narrow foundation tower |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110105 |