CN205502702U - 750kV and 330kV thoughtlessly press four return circuit tangent towers - Google Patents
750kV and 330kV thoughtlessly press four return circuit tangent towers Download PDFInfo
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- CN205502702U CN205502702U CN201620286157.XU CN201620286157U CN205502702U CN 205502702 U CN205502702 U CN 205502702U CN 201620286157 U CN201620286157 U CN 201620286157U CN 205502702 U CN205502702 U CN 205502702U
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Abstract
The utility model provides a 750kV and 330kV thoughtlessly press four return circuit tangent towers, is including setting up at the 750kV on upper strata wire cross arm and setting up at the 330kV of lower floor wire cross arm, 750kV wire cross arm including first upper conductor cross arm on the body of the tower sets gradually from top to bottom, in first wire cross arm and first wire cross arm, 330kV wire cross arm is wire cross arm and second wire cross arm in setting gradually second upper conductor cross arm on the body of the tower, second from top to bottom, the equal symmetry of each wire cross arm sets up in the body of the tower both sides, and first upper conductor cross arm top is provided with the ground wire support, and ground wire support top is equipped with the ground wire and hangs the point, and wire cross arm bottom is equipped with the wire and hangs the point, twice 750kV wires are hung to 750kV wire cross arm, and twice 330kV wires are hung to 330kV wire cross arm. The utility model discloses can reduce line corridor, can use in the nervous department in route corridor, economic benefits is obvious.
Description
Technical field
This utility model relates to a kind of high voltage iron tower, is specifically related to a kind of 750kV Yu 330kV mixed pressure four loop tangent tower.
Background technology
Along with country carries out the process of urbanization the line corridor growing tension of construction, town planning area and suburban area, in order to reduce line
Corridor, road is taken up an area and housing demolition, reduces construction investment, solves the ultra-high-tension power transmission line practical problem at city cabling, the most also
In order to improve 750kV circuit conveying power and the maintenance level of electrical network, improve electromagnetic environment, reduction unit capacity Transmission Cost,
It is thus desirable to carry out the research of 750kV Yu 330kV mixed pressure transmission line with four-circuit on single tower design.
Utility model content
The purpose of this utility model is for above-mentioned the problems of the prior art, it is provided that a kind of cheap, compact conformation
750kV Yu 330kV mixed pressure four loop tangent tower, this tower space availability ratio is high, and can reduce to fall to go here and there, windage yaw discharge accident.
To achieve these goals, the technical solution adopted in the utility model is:
Including being arranged on the 750kV wire cross-arm on upper strata and being arranged on the 330kV wire cross-arm of lower floor；Described 750kV
Wire cross-arm includes the first upper conductor cross-arm being from top to bottom successively set on tower body, wire cross-arm and leading for first time in first
Line cross-arm, the second upper conductor cross-arm that described 330kV wire cross-arm includes from top to bottom being successively set on tower body, in second
Wire cross-arm and the second lower wire cross-arm；Each wire cross-arm is all symmetricly set on tower body both sides, the first upper conductor cross-arm top
Being provided with earth wire support, earth wire support top is provided with ground wire hanging point, is provided with conducting wire hanging point bottom wire cross-arm；Described 750kV
Wire cross-arm hangs twice 750kV wires, and 330kV wire cross-arm hangs twice 330kV wires.
Described the first upper conductor cross-arm, the conducting wire hanging point of wire cross-arm and the first lower wire cross-arm all uses V-type to insulate in first
Substring；Second upper conductor cross-arm, the conducting wire hanging point of wire cross-arm and the second lower wire cross-arm all uses I type insulator chain in second.
The shape of described 750kV wire cross-arm and 330kV wire cross-arm both side ends is pointed.
The first described upper conductor cross-arm total length is 35.4m, and cross arm end angle is 17 °；Wire cross-arm total length in first
For 33.7m, cross arm end angle is 16 °；First lower wire cross-arm total length is 34.4m, and cross arm end angle is 16 °；
Second upper conductor cross-arm total length is 18.0m, and cross arm end angle is 31 °；In second, wire cross-arm total length is 21.8m,
Cross arm end angle is 22 °；Second lower wire cross-arm total length is 18.8m, and cross arm end angle is 35 °.
In described the first upper conductor cross-arm and first, the interlamellar spacing between wire cross-arm is 16.2m；Wire cross-arm and in first
Interlamellar spacing between one lower wire cross-arm is 16.5m；In second upper conductor cross-arm and second, the interlamellar spacing between wire cross-arm is
9.3m；In second, the spacing between wire cross-arm and the second lower wire cross-arm is 8.2m.
Formed on the described tower body below the second lower wire cross-arm and become at slope, and become distance the second lower wire cross-arm and tower body at slope
Junction be 5.8m, become below at slope and connect tower leg.
The Liang Ge branch outermost end of described earth wire support is 11.0m to the distance of tower body axis, and the height of earth wire support is 1.9m.
The main material of described tower body and X-braced panels all use Q345 steel pipe, and each wire cross-arm uses angle steel.
The main material of described tower body is attached by rigid flange, and uses double-nut bolt to be fixed.
It is provided with cat ladder on described tower body.
Compared with prior art, this utility model has following beneficial effect: building multiple-loop line road transmission line of electricity can reduce
Line corridor, it is to avoid clash with local plan, it is possible to nervous in corridor, path, needs to use at large stretch of housing demolition.Though
So the more conventional steel tower of weight of tower body itself increased, but this tower can effectively reduce occupation of land, uses and feeds back electricity with tower four, no
Only saving total investment of engineering, economic benefit is obvious, and social benefit is notable, before having wide application in Process of Urbanization Construction
Scape, it is possible to promote the use of.Simultaneously in terms of lightning protection, this utility model is better than " not preferably greater than 0 ° " of code requirement, energy
The negative shielding angle of enough realizations, this kind of arrangement form, tower head is the tightst with the combination in gap, and space availability ratio is higher, decreases
Fall string accident, reduce windage yaw discharge probability, ensure the safe operation of engineering.
Further, this utility model 750kV wire cross-arm conducting wire hanging point all uses V-type insulator chain, 330kV wire cross-arm
Conducting wire hanging point all uses I type insulator chain, it is possible to reduce width of corridor, saves tower weight, also makes cost be substantially reduced.
Accompanying drawing explanation
Fig. 1 overall structure of the present utility model schematic diagram；
The first tower leg structural representation of Fig. 2 this utility model；
Fig. 3 this utility model the second tower leg structural representation；
In accompanying drawing: 1. tower body；2. earth wire support；3. the first upper conductor cross-arm；4. wire cross-arm in first；5. the first lower wire is horizontal
Load；6. the second upper conductor cross-arm；7. wire cross-arm in second；8. the second lower wire cross-arm；9. become at slope；10. tower leg.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is described in further detail.
Seeing Fig. 1-3, this utility model structurally includes in tower body 1, earth wire support the 2, first upper conductor cross-arm 3, first
Wire cross-arm the 4, first lower wire cross-arm 5, wire cross-arm the 7, second lower wire cross-arm 8 in the second upper conductor cross-arm 6, second
And tower leg 10.Earth wire support 2 is symmetricly set on the top of the first upper conductor cross-arm 3 of tower body 1 top 750kV, including two
Individual branch, lays respectively at the left and right sides of tower body 1；The Liang Ge branch outermost end of earth wire support 2 is to the distance of tower body 1 axis
For 11.0m, the height of earth wire support 2 is 1.9m.The top of earth wire support 2 is provided with ground wire hanging point, is used for hanging ground wire,
Wire is shielded by ground wire.Wire cross-arm 4 and the first lower wire cross-arm 5 in the first upper conductor cross-arm 3, first of 750kV
Bottom is provided with conducting wire hanging point, uses V-type insulator chain；Wire cross-arm 7 in the second upper conductor cross-arm 6, second of 330kV,
It is provided with conducting wire hanging point bottom second lower wire cross-arm 8, uses I type insulator chain.It is double at the hanging point of two kinds of electric pressures
Steel angle structure, this kind of structure avoids the welding job at hanging point, it is possible to effectively strengthen the stress-bearing capability of hanging wire node, it is ensured that hang
The requirements such as the intensity of line node, thus reduce and fall string accident, reduce windage yaw discharge probability, ensure the safe operation of engineering.
The lightning protection of shaft tower, by not preferably greater than 0 ° of protection of code requirement, is optimized for negative shielding angle further.
First upper conductor cross-arm 3 symmetry of 750kV be arranged at tower body 1 top, including Liang Ge branch, be positioned at tower body about 1
Both sides, each branch top shape is pointed, and angle is 17 °, to tower head the right and left horizontal stretching and keep symmetrical；First
The unilateral a length of 16.1m of upper conductor cross-arm 3, is used for hanging transmission pressure, and meets electric clearance requirement.
In the first of 750kV, wire cross-arm 4 includes Liang Ge branch, lays respectively at a left side for the first upper conductor cross-arm 3 bottom tower body 1
Right both sides, its top shape is pointed, and angle is 16 °, to tower head the right and left horizontal stretching and keep symmetrical；Lead in first
4 unilateral a length of 14.6m of line cross-arm, are used for hanging transmission pressure, and meet electric clearance requirement.
The first lower wire cross-arm 5 of 750kV includes Liang Ge branch, lays respectively at a left side for wire cross-arm 4 bottom tower body 1 in first
Right both sides, its top shape is pointed, and angle is 16 °, to tower head the right and left horizontal stretching and keep symmetrical；Lead for first time
The unilateral a length of 14.4m of line cross-arm 5, is used for hanging transmission pressure, and meets electric clearance requirement.
The second upper conductor cross-arm 6 of 330kV is positioned at the tower body left and right sides, is symmetricly set in the first lower wire cross-arm 5 of 750kV
On the tower body 1 of lower section, including Liang Ge branch, branch's top shape is pointed, and angle is 31 °, stretches to tower head the right and left level
Open up and keep symmetrical；The second unilateral a length of 5.6m of upper conductor cross-arm 6, is used for hanging transmission pressure, meets electric clearance requirement.
In the second of 330kV, wire cross-arm 7 includes Liang Ge branch, lays respectively at a left side for the second upper conductor cross-arm 6 bottom tower body 1
Right both sides, its top shape is pointed, and angle is 22 °, to tower head the right and left horizontal stretching and keep symmetrical；Lead in second
The a length of 7.2m in one side of line cross-arm 7, is used for hanging transmission pressure, and meets electric clearance requirement.
The second lower wire horizontal stroke 8 of 330kV includes Liang Ge branch, lays respectively at the left and right sides of wire cross-arm 7 bottom in second,
Its top shape is pointed, and angle is 35 °, to tower head the right and left horizontal stretching and keep symmetrical；Second lower wire horizontal 8 is single
The a length of 5.4m in side, is used for hanging transmission pressure, and meets electric clearance requirement.
The first upper conductor cross-arm 3 total length 35.4m of 750kV, is 3.0m with the vertical height of tower body junction, leads in first
Line cross-arm 4 total length 33.7m, is 4.0m with the vertical height of tower body junction, the first lower wire cross-arm 5 total length 34.4m,
Being 4.0m with the vertical height of tower body 1 junction, in the first upper conductor cross-arm 3 and first, the interlamellar spacing between wire cross-arm 4 is
16.2m；In first, the interlamellar spacing between wire cross-arm 4 and the first lower wire cross-arm 5 is 16.5m.
The second upper conductor cross-arm 6 total length 18.0m of 330kV, is 3.5m with the vertical height of tower body junction, leads in second
Line cross-arm 7 total length 21.8m, is 3.0m with the vertical height of tower body junction, the second lower wire cross-arm 8 total length 18.8m,
Being 3.8m with the vertical height of tower body junction, in the second upper conductor cross-arm 6 and second, the interlamellar spacing between wire cross-arm 7 is
9.3m；In second, the spacing between wire cross-arm 7 and the second lower wire cross-arm 8 is 8.2m.
Tower body 1 become at slope 9 apart from the second lower wire cross-arm 8 of 330kV and the junction 5.8m of tower body 1, reasonably select
Become the position of 9 at slope and can effectively save material, convenient installation.Connecting bottom tower body 1 and have tower leg, this tower leg can be tower
Lower limb 10, tower leg 11 or tower leg 12, and be connected with tower body body according to practical situation, to adapt to different topography and geomorphologies.
This utility model tangent tower uses the complete locking measure of tower double-nut bolt, decreases the workload of maintainer, also improves simultaneously
The safety that circuit runs.
This utility model design basic wind speed be 27m/s, design ice coating wire is 10mm, ground wire is 15mm, including tower body,
Earth wire support, six layer conductor cross-arms, tower leg.Each layer cross-arm is symmetrically arranged at the tower body left and right sides, and is connected with tower body.
This utility model is in order to save width of corridor, reduce cost, and 750kV conducting wire hanging point uses V-type insulator chain, reduces corridor width
Degree, 330kV conducting wire hanging point uses I type insulator chain, shortens the length of wire cross-arm so that the combination in tower head and gap is more
For closely, space availability ratio is high.This utility model is better than traditional requirement in terms of lightning protection, and wire realizes negative shielding angle.
Described above being only intended to helps to understand method of the present utility model and core concept thereof；General simultaneously for this area
Technical staff, according to thought of the present utility model, the most all will change, to sum up institute
Stating, this specification content should not be construed as restriction of the present utility model.
Claims (10)
1. 750kV Yu a 330kV mixed pressure four loop tangent tower, it is characterised in that: include the 750kV wire being arranged on upper strata
Cross-arm and be arranged on the 330kV wire cross-arm of lower floor；Described 750kV wire cross-arm includes from top to bottom being successively set on tower
The first upper conductor cross-arm (3) on body (1), wire cross-arm (4) and the first lower wire cross-arm (5) in first, described
The second upper conductor cross-arm (6) that 330kV wire cross-arm includes from top to bottom being successively set on tower body (1), wire is horizontal in second
Load (7) and the second lower wire cross-arm (8)；Each wire cross-arm is all symmetricly set on tower body (1) both sides, the first upper conductor
Cross-arm (3) top is provided with earth wire support (2), and earth wire support (2) top is provided with ground wire hanging point, is provided with bottom wire cross-arm
Conducting wire hanging point；Described 750kV wire cross-arm hangs twice 750kV wires, and 330kV wire cross-arm hangs twice 330kV wires.
750kV Yu 330kV mixed pressure four loop the most according to claim 1 tangent tower, it is characterised in that: described first
Upper conductor cross-arm (3), the conducting wire hanging point of wire cross-arm (4) and the first lower wire cross-arm (5) all uses V-type exhausted in first
Edge substring；Described the second upper conductor cross-arm (6), wire cross-arm (7) and second lower wire cross-arm (8) leads in second
Line hanging point all uses I type insulator chain.
750kV Yu 330kV mixed pressure four loop the most according to claim 1 tangent tower, it is characterised in that: described 750kV
The shape of wire cross-arm and 330kV wire cross-arm both side ends is pointed.
750kV Yu 330kV mixed pressure four loop the most according to claim 3 tangent tower, it is characterised in that: described first
Upper conductor cross-arm (3) total length is 35.4m, and cross arm end angle is 17 °；In first, wire cross-arm (4) total length is 33.7m,
Cross arm end angle is 16 °；First lower wire cross-arm (5) total length is 34.4m, and cross arm end angle is 16 °；Second
Upper conductor cross-arm (6) total length is 18.0m, and cross arm end angle is 31 °；In second, wire cross-arm (7) total length is 21.8m,
Cross arm end angle is 22 °；Second lower wire cross-arm (8) total length is 18.8m, and cross arm end angle is 35 °.
5. according to 750kV Yu the 330kV mixed pressure four loop tangent tower described in claim 1 or 4, it is characterised in that: described
In first upper conductor cross-arm (3) and first, the interlamellar spacing between wire cross-arm (4) is 16.2m；Wire cross-arm (4) in first
And the interlamellar spacing between the first lower wire cross-arm (5) is 16.5m；Wire cross-arm (7) in second upper conductor cross-arm (6) and second
Between interlamellar spacing be 9.3m；In second, the spacing between wire cross-arm (7) and the second lower wire cross-arm (8) is 8.2m.
750kV Yu 330kV mixed pressure four loop the most according to claim 1 tangent tower, it is characterised in that: described second
Upper formation becomes at slope (9) tower body (1) of lower wire cross-arm (8) lower section, and becomes (9) distance the second lower wire cross-arm (8) at slope
It is 5.8m with the junction of tower body (1), becomes (9) lower section at slope and connect tower leg (10).
750kV Yu 330kV mixed pressure four loop the most according to claim 1 tangent tower, it is characterised in that: described ground wire props up
The Liang Ge branch outermost end of frame (2) is 11.0m to the distance of tower body (1) axis, and the height of earth wire support (2) is 1.9m.
750kV Yu 330kV mixed pressure four loop the most according to claim 1 tangent tower, it is characterised in that: described tower body (1)
Main material and X-braced panels all use Q345 steel pipe, and each wire cross-arm uses angle steel.
750kV Yu 330kV mixed pressure four loop the most according to claim 8 tangent tower, it is characterised in that: described tower body (1)
Main material is attached by rigid flange, and uses double-nut bolt to be fixed.
10. according to 750kV Yu the 330kV mixed pressure four loop tangent tower described in claim 1 or 9, it is characterised in that: described
Tower body (1) on be provided with cat ladder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620286157.XU CN205502702U (en) | 2016-04-07 | 2016-04-07 | 750kV and 330kV thoughtlessly press four return circuit tangent towers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620286157.XU CN205502702U (en) | 2016-04-07 | 2016-04-07 | 750kV and 330kV thoughtlessly press four return circuit tangent towers |
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| Publication Number | Publication Date |
|---|---|
| CN205502702U true CN205502702U (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620286157.XU Active CN205502702U (en) | 2016-04-07 | 2016-04-07 | 750kV and 330kV thoughtlessly press four return circuit tangent towers |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108868286A (en) * | 2018-09-06 | 2018-11-23 | 中国能源建设集团江苏省电力设计院有限公司 | A kind of four circuit complex pole tower of 500kV/220kV mixed pressure |
-
2016
- 2016-04-07 CN CN201620286157.XU patent/CN205502702U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108868286A (en) * | 2018-09-06 | 2018-11-23 | 中国能源建设集团江苏省电力设计院有限公司 | A kind of four circuit complex pole tower of 500kV/220kV mixed pressure |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |