CN204370881U - Transmission line of electricity three Loop Steel Tower - Google Patents
Transmission line of electricity three Loop Steel Tower Download PDFInfo
- Publication number
- CN204370881U CN204370881U CN201420754749.0U CN201420754749U CN204370881U CN 204370881 U CN204370881 U CN 204370881U CN 201420754749 U CN201420754749 U CN 201420754749U CN 204370881 U CN204370881 U CN 204370881U
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- trapezoidal
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- electricity
- transmission line
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 24
- 230000005611 electricity Effects 0.000 title claims abstract description 21
- 210000001624 hip Anatomy 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000004020 conductor Substances 0.000 abstract description 8
- 238000010276 construction Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The utility model discloses a kind of transmission line of electricity three Loop Steel Tower, include a tower body, two king-posts are arranged at intervals with side by side at the top of tower body, the orientation of king-post is along the length direction of tower body, also include the horizontal truss of three layers, described horizontal truss includes two trapezoidal greatly centered by king-post, two trapezoidal greatly bases connect between two king-posts, also include simultaneously one little trapezoidal, this little trapezoidal with the large trapezoidal base of two between king-post the end of for, upper base is supported on two large trapezoidal waists, lower base angle outside two large trapezoidal two king-posts is provided with wire hitch point, the two trapezoidal greatly public lower base angle places crossed also are provided with a wire hitch point.The utility model tower head is arranged through three layers of horizontal truss to bear conductor load, and the load of horizontal truss reaches the monosymmetric truss leg of tower head.By reasonable Arrangement trussed construction, load is passed to tower body again, avoid the sudden change of tower body rigidity.Mechanical structure is succinct clearly, structure is simple.
Description
Technical field
The utility model relates to a kind of steel tower, particularly a kind of transmission line of electricity three Loop Steel Tower.
Background technology
Along with economic development, in the nervous location of power transmission line corridor resource, likely use multiloop shaft tower, can greatly save line corridor resource.Wherein the relatively good design of multiloop tower in double loop, four loops is also commonplace, adopts drum type vertical arrangement.Due to the particularity in three loops, also there is no preferably special three Loop Steel Towers.If encounter the corridor needing use three return lead, general adopt three single loops or a single loop and a double circuit line, also have one to be exactly that employing double circuit line top adds a single-circuit tower again.Wherein to take corridor wide for the first scheme, and investment is large.Rear a kind of scheme tower head is higher, and shaft tower lightning protection effect is poor; The maintenance of upper and lower loop can be influenced, needs to have a power failure.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art part, and busy line corridor is less, loop is clear and definite, structure is simple, construct and overhaul transmission line of electricity three Loop Steel Tower easily to provide one to have.
A kind of transmission line of electricity three Loop Steel Tower, include a tower body, two king-posts are arranged at intervals with side by side at the top of tower body, the orientation of king-post is along the length direction of tower body, also include the horizontal truss of three layers, described horizontal truss includes two trapezoidal greatly centered by king-post, two trapezoidal greatly bases connect between two king-posts, also include simultaneously one little trapezoidal, this little trapezoidal with the large trapezoidal base of two between king-post the end of for, upper base is supported on two large trapezoidal waists, lower base angle outside two large trapezoidal two king-posts is provided with wire hitch point, the two trapezoidal greatly public lower base angle places crossed also are provided with a wire hitch point.
Transmission line of electricity three Loop Steel Tower of the present utility model, two king-posts are utilized to form mutual two of connecting trapezoidal, also utilize simultaneously the end of the trapezoidal serial connection of series connection construct the 3rd trapezoidal, thus form that one firm, power transmission is effective, can by the horizontal truss passing to king-post good for power, owing to being provided with wire hitch point on trapezoidal lower base angle, thus each return wire in three loops can be realized to be suspended on wire hitch point place, because these hitch points are arranged on twice base angles on two trapezoidal public lower base angles and trapezoidal.This structure improves the stability in loop on the one hand, and each loop can be overhauled respectively, unaffected, simultaneously transmission line of electricity three Loop Steel Tower of the present utility model have take up an area little, the low advantage avoiding being struck by lightning of tower head.
The described width of transmission line of electricity three Loop Steel Tower three layers of horizontal truss between two king-posts is equal.
The upper strata of described transmission line of electricity three Loop Steel Tower three layers of horizontal truss, lower floor's two-layer horizontal truss width be positioned at outside two king-posts are greater than the horizontal truss in intermediate layer.
Can be ensured to mediate the wire of layer and the two-layer certain distance that staggers up and down.
Two outward extending ground wire cross-arms are had in the arranged outside of top two king-post of king-post.
For supporting the earth wire support of two ground wires, reasonable stress and profile is simply attractive in appearance.Erection double joint ground wire is protected as direct striking thunder prevention,
Upper strata and lower layer of water plane frame work be positioned at two parts in the middle of king-posts trapezoidal greatly go to the bottom equal, be positioned at trapezoidal greatly the going to the bottom as one is long and the other is short of the horizontal truss in intermediate layer.
This arrangement, the wire that can make to be positioned at intermediate layer and the two-layer certain distance that staggers up and down.
Described upper base trapezoidal greatly and king-post with wide, be positioned on king-post with king-post one.
Adopt this structure can improve the transitivity of power.
In sum, the utility model following advantage compared to existing technology:
Three Loop Steel Towers of the present utility model are led tower head, ground wire is arranged cleverly.Lightning conducter opposite side phase conductor shielding angle is by 0 shielding angle design; Wire arrangements is " waist type ", and limit wire has upper, middle and lower, and wherein, phase conductor carrys out certain distance than upper and lower phase indentation, and middle phase conductor lightning protection angle is negative shielding angle.
Lightning conducter opposite side phase conductor shielding angle reduces, and thunderbolt rate will significantly reduce, and effectively improves the lightning withstand level of overhead transmission line, and shielding angle is by 0 degree of design.In the past conventional tower cross-arm arrange, drum type tower wire be generally the wire of middle phase cross-arm at outermost, middle phase conductor is subject to thunder shielding; Or umbellate form tower, the cross-arm of upper, middle and lower increases gradually, in, lower phase conductor is subject to the shielding of thunder.The probability wherein gone up mutually by shielding is less, when ground wire centering wire lightning protection angle is negative, overcomes the disadvantage that in traditional tower, phase risk of shielding failure is higher, substantially increases lightning protection properties.
The utility model tower head is arranged through three layers of horizontal truss to bear conductor load, and the load of horizontal truss reaches the monosymmetric truss leg of tower head.By reasonable Arrangement trussed construction, load is passed to tower body again, avoid the sudden change of tower body rigidity.Mechanical structure is succinct clearly, structure is simple, good looking appearance.By three return wire vertical arrangements, also can be horizontal, its tower head height is actual close with double loop tower height, does not interfere with each other during each loop maintenance, and secondary circuit does not need to have a power failure in addition, and takes up an area little, and tower head is not high, and lightning-arrest property is good.
Accompanying drawing explanation
Fig. 1 is the structural representation of three Loop Steel Towers of the present utility model.
Label declaration 1 tower body 2 king-post 3 horizontal truss 4 ground wire cross-arm 5 is trapezoidal.
Detailed description of the invention
Below in conjunction with embodiment, the utility model is described in more detail.
Embodiment 1
A kind of transmission line of electricity three Loop Steel Tower, include a tower body 1, two king-posts 2 are arranged at intervals with side by side at the top of tower body, the orientation of king-post is along the length direction of tower body, also include the horizontal truss 3 of three layers, described horizontal truss includes two trapezoidal greatly centered by king-post, two trapezoidal greatly bases connect between two king-posts, also include simultaneously one little trapezoidal, this little trapezoidal with the large trapezoidal base of two between king-post the end of for, upper base is supported on two large trapezoidal waists, lower base angle outside two large trapezoidal two king-posts is provided with wire hitch point, the two trapezoidal greatly public lower base angle places crossed also are provided with a wire hitch point.The described width of transmission line of electricity three Loop Steel Tower three layers of horizontal truss between two king-posts is equal.The upper strata of described transmission line of electricity three Loop Steel Tower three layers of horizontal truss, lower floor's two-layer horizontal truss width be positioned at outside two king-posts are greater than the horizontal truss in intermediate layer.Two outward extending ground wire cross-arms 4 are had in the arranged outside of top two king-post of king-post.Upper strata and lower layer of water plane frame work be positioned at two parts in the middle of king-posts trapezoidal greatly go to the bottom equal, be positioned at trapezoidal greatly the going to the bottom as one is long and the other is short of the horizontal truss in intermediate layer.The upper base of described trapezoidal greatly 5 and king-post with wide, be positioned on king-post with king-post one.
Claims (6)
1. transmission line of electricity three Loop Steel Tower, it is characterized in that: include a tower body, two king-posts are arranged at intervals with side by side at the top of tower body, the orientation of king-post is along the length direction of tower body, also include the horizontal truss of three layers, described horizontal truss includes two trapezoidal greatly centered by king-post, two trapezoidal greatly bases connect between two king-posts, also include simultaneously one little trapezoidal, this little trapezoidal with the large trapezoidal base of two between king-post the end of for, upper base is supported on two large trapezoidal waists, lower base angle outside two large trapezoidal two king-posts is provided with wire hitch point, the two trapezoidal greatly public lower base angle places crossed also are provided with a wire hitch point.
2. transmission line of electricity three Loop Steel Tower according to claim 1, is characterized in that: the described width of transmission line of electricity three Loop Steel Tower three layers of horizontal truss between two king-posts is equal.
3. transmission line of electricity three Loop Steel Tower according to claim 2, is characterized in that: the upper strata of described transmission line of electricity three Loop Steel Tower three layers of horizontal truss, lower floor's two-layer horizontal truss width be positioned at outside two king-posts are greater than the horizontal truss in intermediate layer.
4. transmission line of electricity three Loop Steel Tower according to claim 3, is characterized in that: have two outward extending ground wire cross-arms in the arranged outside of top two king-post of king-post.
5. transmission line of electricity three Loop Steel Tower according to claim 4, is characterized in that: upper strata and lower layer of water plane frame work be positioned at two parts in the middle of king-posts trapezoidal greatly go to the bottom equal, be positioned at trapezoidal greatly the going to the bottom as one is long and the other is short of the horizontal truss in intermediate layer.
6. transmission line of electricity three Loop Steel Tower according to claim 5, is characterized in that: described upper base trapezoidal greatly and king-post with wide, be positioned on king-post with king-post one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420754749.0U CN204370881U (en) | 2014-12-04 | 2014-12-04 | Transmission line of electricity three Loop Steel Tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420754749.0U CN204370881U (en) | 2014-12-04 | 2014-12-04 | Transmission line of electricity three Loop Steel Tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204370881U true CN204370881U (en) | 2015-06-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420754749.0U Expired - Fee Related CN204370881U (en) | 2014-12-04 | 2014-12-04 | Transmission line of electricity three Loop Steel Tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204370881U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104453334A (en) * | 2014-12-04 | 2015-03-25 | 国家电网公司 | Three-loop iron tower of power transmission line |
-
2014
- 2014-12-04 CN CN201420754749.0U patent/CN204370881U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104453334A (en) * | 2014-12-04 | 2015-03-25 | 国家电网公司 | Three-loop iron tower of power transmission line |
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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 |
Granted publication date: 20150603 Termination date: 20211204 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |