CN109629899A - It is a kind of for exchanging 750kV with the device of four circuit power transmission tower of tower - Google Patents
It is a kind of for exchanging 750kV with the device of four circuit power transmission tower of tower Download PDFInfo
- Publication number
- CN109629899A CN109629899A CN201811443370.7A CN201811443370A CN109629899A CN 109629899 A CN109629899 A CN 109629899A CN 201811443370 A CN201811443370 A CN 201811443370A CN 109629899 A CN109629899 A CN 109629899A
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- Prior art keywords
- tower
- arm
- cross
- wire cross
- exchanging
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/24—Cross arms
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Suspension Of Electric Lines Or Cables (AREA)
Abstract
The invention discloses one kind for exchanging 750kV with four circuit power transmission tower of tower, it include: tower body (6) and from top to bottom successively symmetrically in two layer conductor cross-arms (8) of tower body two sides, earth wire support (7) are symmetrically arranged at the top of the tower body (6), the conducting wire cross-arm (8) includes upper return wire cross-arm (1), lower return wire cross-arm (5), and the conducting wire cross-arm (8) hangs transmission pressure by V-type insulator chain (2)；And by the way that directly string (3) hangs transmission pressure in I type tandem；Directly string (3) and tower body (6) are provided with supporting insulator (4) in the I type tandem.Innovation arrangement, is designed by compact, succinct structure, realizes reliable and stable, beautiful pole and tower design scheme, provides innovation support for the engineering practice on 750kV quadri-circuit lines on the same tower road.
Description
Technical field
The present invention relates to power system transmission line pole and tower design fields, more particularly to one kind is for exchanging the same tower of 750kV
The device of four circuit power transmission towers.
Background technique
Northwest China area 750kV transmission system is quickly grown, and networking, planning construction has been done step-by-step in line construction
A plurality of route by the nervous area in surrounding city transmission of electricity corridor, such as Xi'an southwest suburb 750kV transmission project, Weinan-Qian County-
Sky and water 750kV engineering, East Lanzhou-Pingliang-Qian County 750kV networking project etc., in addition, the important passway for transmitting electricity west of a river in the Northwest
Current power transmission route land occupation in corridor area is also especially nervous.In alternative power transmission mode, multiple-loop line technology of transmission of electricity is by more times
The construction of line realizes large capacity and few land occupation in same shaft tower, and area has been subjected to many years application practice throughout our country, operation
It is all right.
Currently, 750kV quadri-circuit lines on the same tower road wiring on the same tower, shaft tower height, width scales are significantly increased, structure is more multiple
Miscellaneous, the variation of shaft tower width and conductor height has a significant impact the flash-over characteristic in shaft tower gap, the structure tower height mistake
Greatly, whole tower kind is obviously increased, the Northwest is used for, wind resistance deficiency is also outstanding problem, then has it to repeat ice etc.
The ability of heavy load is poor, there is also deficiencies for Technical Economy aspect.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides one kind for exchanging 750kV with four circuit power transmission tower of tower, packet
It includes: tower body (6) and from top to bottom successively symmetrically in two layer conductor cross-arms (8) of tower body two sides, it is right at the top of the tower body (6)
Title is provided with earth wire support (7), and the conducting wire cross-arm (8) includes upper return wire cross-arm (1), lower return wire cross-arm
(5), the conducting wire cross-arm (8) hangs transmission pressure by V-type insulator chain (2)；And by directly going here and there (3) in I type tandem
Hang transmission pressure；Directly string (3) and tower body (6) are provided with supporting insulator (4) in the I type tandem.
Further, the supporting insulator (4) is pillar supporting insulator, and main body is composite insulating material, described
Coupled between supporting insulator (4) and tower body (6) by articulated manner.
Further, the shape of conducting wire cross-arm (8) both side ends is trapezoidal (overlooking upper surface)；It leads in upper circuit
The total length of line cross-arm (1) is 27m, and the angle of upper return wire cross-arm (1) end is 18 °；Lower return wire cross-arm (5)
Total length is 35m, and the angle of lower return wire cross arm end (5) is 18 °.
The interlamellar spacing of the upper return wire cross-arm (1) and the lower return wire cross-arm (5) is 29m.
The Liang Ge branch outermost end of the earth wire support (7) to tower body (6) central axes distance be 28m, the ground wire branch
The height of frame (7) is 85m -90m.
The main material and X-braced panels of the tower body (6) are all made of angle steel, and the main material of tower body (6) is connected by steel plate and angle steel
It connects, and is fixed using bolt.
The beneficial effects of the present invention are:
(1) conducting wire is hung using 2 layers of cross-arm, reduces the cross-arm number of plies, overall height can reduce nearly 30 compared with conventional design
~40%, steel tower material can reduce about 40%；
(2) after height reduces, the big wind load in high-altitude is also minimized, and safety is also improved；
(3) compared with conventional steel tower, tower of the invention eliminates the ground connection framework between multiple phase conductors, and reducing needs
The clearance for insulation quantity of the high-voltage conducting wires to be controlled and ground connection framework, hence it is evident that reduce the risk point of insulation safety, can suitably add
Big relatively insulation distance, further increases insulation safety.
(4) phase conductor uses a kind of New Rigid supporting insulator under, which designs for composite insulating material,
There is silicone rubber jacket, pilot wind pendulum can be played the role of and insulate to tower body.
Detailed description of the invention
By reference to the following drawings, exemplary embodiments of the present invention can be more fully understood by:
Fig. 1 is structural schematic diagram of the four layers of cross-arm 750kV with four circuit pole tower figure of tower；
Fig. 2 is structural schematic diagram of the six layers of cross-arm 750kV with four circuit pole tower of tower；
Fig. 3 is structural schematic diagram of the 750kV with four circuit novel tower of tower.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
It is the embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
Art personnel every other embodiment obtained without making creative work, all should belong to protection of the present invention
Range.
It should be noted that description and claims of this specification and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that making in this way
Data are interchangeable under appropriate circumstances, so that the embodiment of the present invention described herein can be in addition to scheming herein
Sequence other than those of showing or describe is implemented.In addition, term " includes " and " having " and their any deformation, it is intended that
Be to cover it is non-exclusive include, for example, containing the process, method, system, product or equipment of a series of steps or units
Those of be not necessarily limited to be clearly listed step or unit, but may include be not clearly listed or for these processes,
The intrinsic other step or units of method, product or equipment.
As shown in figure 3, structural schematic diagram of the 750kV with four circuit novel tower of tower, this kind of shaft tower ontology is angle steel material,
Insulator body is composite insulating material.The cross-arm of shaft tower suspension conducting wire is divided into two layers, and every layer of cross-arm is symmetrical centered on tower body
It is divided into two cross-arms, every cross-arm hangs primary Ioops (A, B, C three-phase) conducting wire respectively, arranges in equilateral inverted triangle.The above circuit
For, upper circuit cross-arm 1 hangs 2 phase conductors by V-type string 2, directly go here and there 3 suspension, 1 phase conductor in, altogether three-phase conducting wire, wherein
Lower phase conductor is to prevent from swinging laterally, and design has pillar supporting insulator, plays the work of limitation hunting range and outdoor insulative
With.It is shaft tower terminal with compact integral structure, compact, it is high carefully than rationally, stability is good.
As shown in Fig. 2, structural schematic diagram of the six layers of cross-arm 750kV with four circuit pole tower of tower, the present invention and conventional six layers of cross
Tower comparison is carried on a shoulder pole, the present invention hangs conducting wire using 2 layers of cross-arm, reduces 4 layers of cross-arm, overall height is greatly reduced, space insulation ruler
Degree is fully used, and steel tower material can reduce about 40%.After height reduces, the big wind load in high-altitude is also minimized, safety
Property is also improved.
As shown in Figure 1, structural schematic diagram of the four layers of cross-arm 750kV with four circuit pole tower figure of tower, sets with 4 layers of cross-arm structure
Meter is compared to since phase conductor uses a kind of New Rigid supporting insulator under the present invention, which is composite insulating material
Design, there is silicone rubber jacket, can be very good to play the role of pilot wind pendulum and insulate to tower body, to eliminate down
The suspension strut iron cross arm of phase conductor, further decreases vertical space.Therefore, the present invention significantly reduces the suspension of 4 return wires
It arranges vertical height, rationally controls wind pendulum, efficiently use air-dielectric space, reduce tower weight and the big wind load in high-altitude not
Safety factor.It is required the present invention is based on 750kV voltage class electrical specifications and structure-design technique, proposition meets the same tower of 750kV
The novel pole and tower design scheme of four return wires suspension and electric insulation, by the comprehensive benefit of V type, I type and pillar supporting insulator
With innovation arrangement is designed by compact, succinct structure, realizes reliable and stable, beautiful pole and tower design scheme, be
The engineering practice on 750kV quadri-circuit lines on the same tower road provides innovation support.
The above is only the preferred embodiment of the application, it is noted that for the ordinary skill people of the art
For member, under the premise of not departing from the application principle, several improvements and modifications can also be made, these improvements and modifications
It should be regarded as the protection scope of the application.
Claims (6)
1. one kind is for exchanging 750kV with four circuit power transmission tower of tower characterized by comprising tower body (6) and from top to bottom according to
In two layer conductor cross-arms (8) of tower body two sides, tower body (6) top is symmetrically arranged with earth wire support (7) sub-symmetry, described
Conducting wire cross-arm (8) includes upper return wire cross-arm (1), lower return wire cross-arm (5), and the conducting wire cross-arm (8) is insulated by V-type
Substring (2) hangs transmission pressure；And by the way that directly string (3) hangs transmission pressure in I type tandem；It is straight in the I type tandem
String (3) and the tower body (6) are provided with supporting insulator (4).
2. according to claim 1 a kind of for exchanging 750kV with four circuit power transmission tower of tower, which is characterized in that the branch
Supportting insulator (4) is pillar supporting insulator, and main body is composite insulating material, the supporting insulator (4) and tower body (6) it
Between pass through articulated manner couple.
3. according to claim 1 a kind of for exchanging 750kV with four circuit power transmission tower of tower, which is characterized in that described to lead
The shape of line cross-arm (8) both side ends is trapezoidal；The total length of the upper return wire cross-arm (1) is 27m, the upper circuit
The angle of conducting wire cross-arm (1) end is 18 °；The total length of the lower return wire cross-arm (5) is 35m, the lower return wire
The angle of cross arm end (5) is 18 °.
4. according to claim 1 a kind of for exchanging 750kV with four circuit power transmission tower of tower, which is characterized in that on described
Return wire cross-arm (1) and the lower return wire cross-arm (5)) interlamellar spacing be 29m.
5. according to claim 1, described one kind is for exchanging 750kV with four circuit power transmission tower of tower, which is characterized in that describedly
The Liang Ge branch outermost end of line bracket (7) is 28m to the central axes of tower body (6) distance, and the height of the earth wire support (7) is
85m—90m。
6. according to claim 1 a kind of for exchanging 750kV with four circuit power transmission tower of tower, which is characterized in that the tower
The main material and X-braced panels of body (6) are all made of angle steel, the main material of tower body (6) by steel plate and Bolted angle connection, and using bolt into
Row is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811443370.7A CN109629899A (en) | 2018-11-29 | 2018-11-29 | It is a kind of for exchanging 750kV with the device of four circuit power transmission tower of tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811443370.7A CN109629899A (en) | 2018-11-29 | 2018-11-29 | It is a kind of for exchanging 750kV with the device of four circuit power transmission tower of tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109629899A true CN109629899A (en) | 2019-04-16 |
Family
ID=66069810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811443370.7A Pending CN109629899A (en) | 2018-11-29 | 2018-11-29 | It is a kind of for exchanging 750kV with the device of four circuit power transmission tower of tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109629899A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112211473A (en) * | 2020-08-26 | 2021-01-12 | 国网浙江永康市供电有限公司 | Double-circuit line double-triangle arranged insulating pole erecting tool |
Citations (10)
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|---|---|---|---|---|
| RU2122624C1 (en) * | 1998-03-24 | 1998-11-27 | Открытое акционерное общество "НЕФТЕГАЗПРОЕКТ" | Support of power transmission line |
| CN1978846A (en) * | 2005-12-06 | 2007-06-13 | 北京国电华北电力工程有限公司 | Two-tower double-circuit compact linear power transmission iron tower |
| CN201687253U (en) * | 2010-06-09 | 2010-12-29 | 河北省电力勘测设计研究院 | Tangent tower for transmission lines |
| CN102296864A (en) * | 2011-05-31 | 2011-12-28 | 国网电力科学研究院 | Novel tower for extra-high voltage dual-circuit compact transmission |
| CN204089116U (en) * | 2014-09-22 | 2015-01-07 | 国家电网公司 | A kind of overhead transmission line double back cable terminal steel pipe pole |
| CN105386632A (en) * | 2015-11-30 | 2016-03-09 | 国核电力规划设计研究院 | Wind deflection prevention extra-high voltage direct current linear tower |
| CN106567595A (en) * | 2016-09-26 | 2017-04-19 | 安徽华电工程咨询设计有限公司 | Four-loop cable breaking strain tower |
| CN107587775A (en) * | 2017-10-18 | 2018-01-16 | 江苏神马电力股份有限公司 | Power transmission tower |
| CN207526222U (en) * | 2017-10-18 | 2018-06-22 | 江苏神马电力股份有限公司 | Power transmission tower |
| CN207728076U (en) * | 2017-11-17 | 2018-08-14 | 福建源发电力勘察设计有限公司 | A kind of cat head brill more tower with Anti-galloping suspension string |
-
2018
- 2018-11-29 CN CN201811443370.7A patent/CN109629899A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2122624C1 (en) * | 1998-03-24 | 1998-11-27 | Открытое акционерное общество "НЕФТЕГАЗПРОЕКТ" | Support of power transmission line |
| CN1978846A (en) * | 2005-12-06 | 2007-06-13 | 北京国电华北电力工程有限公司 | Two-tower double-circuit compact linear power transmission iron tower |
| CN201687253U (en) * | 2010-06-09 | 2010-12-29 | 河北省电力勘测设计研究院 | Tangent tower for transmission lines |
| CN102296864A (en) * | 2011-05-31 | 2011-12-28 | 国网电力科学研究院 | Novel tower for extra-high voltage dual-circuit compact transmission |
| CN204089116U (en) * | 2014-09-22 | 2015-01-07 | 国家电网公司 | A kind of overhead transmission line double back cable terminal steel pipe pole |
| CN105386632A (en) * | 2015-11-30 | 2016-03-09 | 国核电力规划设计研究院 | Wind deflection prevention extra-high voltage direct current linear tower |
| CN106567595A (en) * | 2016-09-26 | 2017-04-19 | 安徽华电工程咨询设计有限公司 | Four-loop cable breaking strain tower |
| CN107587775A (en) * | 2017-10-18 | 2018-01-16 | 江苏神马电力股份有限公司 | Power transmission tower |
| CN207526222U (en) * | 2017-10-18 | 2018-06-22 | 江苏神马电力股份有限公司 | Power transmission tower |
| CN207728076U (en) * | 2017-11-17 | 2018-08-14 | 福建源发电力勘察设计有限公司 | A kind of cat head brill more tower with Anti-galloping suspension string |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112211473A (en) * | 2020-08-26 | 2021-01-12 | 国网浙江永康市供电有限公司 | Double-circuit line double-triangle arranged insulating pole erecting tool |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190416 |