CN106121340A - A kind of big " V " formula single loop compact type tower window construction - Google Patents
A kind of big " V " formula single loop compact type tower window construction Download PDFInfo
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- CN106121340A CN106121340A CN201610509785.4A CN201610509785A CN106121340A CN 106121340 A CN106121340 A CN 106121340A CN 201610509785 A CN201610509785 A CN 201610509785A CN 106121340 A CN106121340 A CN 106121340A
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- tower window
- conducting wire
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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
- E04H12/02—Structures made of specified materials
- E04H12/08—Structures made of specified materials of metal
- E04H12/10—Truss-like structures
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Suspension Of Electric Lines Or Cables (AREA)
Abstract
A kind of big " V " formula single loop compact type tower window construction, it includes " V " type tower window being positioned at straight line pole upper end, the three-phase conducting wire in same loop it is disposed with in described V-type tower window, and three-phase conducting wire uses equilateral del to arrange, described equilateral del three-phase conducting wire is to being provided with equilateral triangle insulator chain, and is connected on the both sides of described equilateral triangle insulator chain make a variation lengthened insulative substring and form a 5-linked formula insulator chain；The length of side of described equilateral triangle insulator chain is required to determine by straight line pole shaft tower phase spacing, and the variation lengthened insulative substring total length that both sides connect then is determined by tower window hanging point position and intersection point locus, equilateral triangle type top；The features such as it has rational in infrastructure, compact, easy to install, compliant design requirement.
Description
Technical field
The present invention relates to a kind of big " V " formula single loop compact type tower window construction, belong to transmission line tangent tower tower head
Design and installation technical field.
Background technology
Existing Transmission Line Design designs commonly used wine glass-shaped or cathead for single loop tangent tower tower head, sees figure
1, shown in 2, a phase conductor therein is positioned at tower head inner space, and other two phase conductor is then positioned at the cross-arm of both sides.Above-mentioned knot
The tangent tower tower head form of structure is old, the compactest, the effect that impact is installed and used.
Summary of the invention
It is an object of the invention to the deficiency overcoming prior art to exist, and provide a kind of rational in infrastructure, compact, installation makes
With convenient, big " V " formula single loop compact type tower window construction that compliant design requires.
It is an object of the invention to complete by following technical solution, a kind of big " V " formula single loop compact type tower window knot
Structure, it includes " V " type tower window being positioned at straight line pole upper end, is disposed with the three-phase conducting wire in same loop in described V-type tower window,
And three-phase conducting wire uses equilateral del to arrange, described equilateral del three-phase conducting wire is to being provided with equilateral triangle
Shape insulator chain, and be connected on the both sides of described equilateral triangle insulator chain make a variation lengthened insulative substring and form a 5-linked
Formula insulator chain.
As preferably: the length of side of described equilateral triangle insulator chain is required to determine by straight line pole shaft tower phase spacing,
The variation lengthened insulative substring total length that both sides connect is then by tower window hanging point position and intersection point locus, equilateral triangle type top
Determine.
As preferably: the described actual insulation substring body length in variation lengthened insulative substring structure is according to electric insulation
Requirement determines, remainder is then mended long obtaining by more piece PT type adjustment plate headtotail；The intensity of middle triangle type insulator is wanted
Asking basic with common " V " insulator string, the mutual angle of described both sides variation lengthened insulative substring is 120 °, and supports three-phase
The total load head of wire.
The present invention use in the middle part of big opening tower head centralized arrangement 3 phase compact lead and use variation lengthened insulative knot
Structure is connected to tower head top, forms brand-new big " V " formula single loop compact type tower window construction；It has rational in infrastructure, compact, installs
Easy to use, compliant designs the features such as requirement.
Accompanying drawing explanation
Fig. 1 is existing cathead tower head structural representation.
Fig. 2 is existing wine glass-shaped tower head structural representation.
Fig. 3 is big " V " formula single loop compact type tower window construction schematic diagram of the present invention.
Fig. 4 is big " V " formula single loop compact type tower tower head gap layout drawing of the present invention
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be described in detail: Fig. 3, shown in 4, big " V " formula of one of the present invention
Single loop compact type tower window construction, it includes " V " type tower window being positioned at straight line pole upper end, arranges in described V-type tower window
There is the three-phase conducting wire in same loop, and three-phase conducting wire uses equilateral del to arrange, it is characterised in that described equilateral inverted triangle
Shape three-phase conducting wire is to being provided with equilateral triangle insulator chain, and connects on the both sides of described equilateral triangle insulator chain
There is variation lengthened insulative substring and form a 5-linked formula insulator chain.
Shown in figure, the length of side of equilateral triangle insulator chain of the present invention is by straight line pole shaft tower phase spacing requirement
Determining, the variation lengthened insulative substring total length that both sides connect is then by tower window hanging point position and intersection point space, equilateral triangle type top
Position determines.
Actual insulation substring body length in variation lengthened insulative substring structure of the present invention is wanted according to electric insulation
Asking and determine, remainder is then mended long obtaining by more piece PT type adjustment plate headtotail；The requirement of strength of middle triangle type insulator
Basic with common " V " insulator string, the mutual angle of described both sides variation lengthened insulative substring is 120 °, and support three-phase is led
The total load head of line.
Embodiment: for a kind of brand-new tower head structure design, an of paramount importance design procedure is according to wire electricity
Gas clearance requirement is made rational planning for design tower head size.
It is different from transmission line of electricity tower head arrangement principle and the method for routine, to three-phase compact overhead power transmission in prior art
Circuit has special design discipline to be specified.With reference to " 220kV-500kV compact overhead transmission line designing technique code ",
The main regulations being directed to single loop compact tower structure tower head layout include:
1) compact line uses multiple fission conductor, and sub-conductor preferably uses and is distributed symmetrically and evenly.In order to control split conductor
Subspan oscillation, heading spacing and sub-conductor diameter ratio are preferably greater than 15；500kV compact line conductor division number is not preferably less than
6。
2) tangent tower wire insulation fitting assembly string preferably uses V-type string.Angle one between two limbs of V-type insulator chain
As little 5 °-10 ° than maximum angle of wind deflection, or be determined by experiment.
3) compact line should set up double earth wire completely, and the shielding angle of ground wire opposite side wire preferably uses negative shielding angle.
On shaft tower, distance between two ground wires is not to be exceeded 5 times of vertical dimension between ground wire and wire.At general span
Central authorities, the distance between wire and ground wire, should be calculated as follows (design conditions are temperature 15 °, calm):
S≥0.012L+1
4) tangent tower of compact line, should be arranged in same tower window with the three-phase conducting wire in loop, and three-phase conducting wire is preferably adopted
Arrange by equilateral del.
5) height above sea level area less than 1000m, phase conductor centre distance preferably uses 6.70m for 500kV.
Fig. 3 gives the three dimensional structure diagram of " V " formula single loop compact type tower window construction greatly.Wherein, tower head and tower body position
Put control point and choose shielding angle demand between Main Basis tower head gap layout and lead wire and earth wire.Now design tower ground wire is to wire-protecting
Angle is negative shielding angle, and two places distance between centers of tracks is less than the requirement of lead wire and earth wire vertical dimension 5 times.Span is calculated through lead wire and earth wire fitting curves
Central authorities' lead wire and earth wire distance also corresponds to Regulations requirement.
Meanwhile, in order to coordinate big " V " formula single loop this special structure form of compact type tower window, brand-new design " 5-linked
Formula " insulator chain group, as shown in Figure 4.
The present invention is made up of the equilateral triangle type insulator chain structure and both sides variation lengthened insulative substring being positioned at centre.In
Between equilateral triangle type structure the length of side by compact shaft tower phase spacing require determine, both sides variation lengthened insulative substring total length
Then determined by tower window hanging point position and intersection point locus, equilateral triangle type top.Reality in variation lengthened insulative substring structure
Insulator chain body length requires to determine according to electric insulation, and remainder is then mended by more piece PT type adjustment plate headtotail and looked
Arrive.The requirement of strength of middle triangle type insulator is substantially with common " V " insulator string, and both sides variation lengthened insulative substring is due to phase
Between Hu, angle reaches 120 ° and need to support the total load head of three-phase conducting wire, therefore needs notable reinforcement to set.
Claims (3)
1. big " V " formula single loop compact type tower window construction, it includes " V " type tower window being positioned at straight line pole upper end,
It is disposed with the three-phase conducting wire in same loop in described V-type tower window, and three-phase conducting wire uses equilateral del to arrange, it is characterised in that
Described equilateral del three-phase conducting wire is to being provided with equilateral triangle insulator chain and exhausted at described equilateral triangle
The both sides of edge substring are connected to make a variation lengthened insulative substring and form a 5-linked formula insulator chain.
Big " V " formula single loop compact type tower window construction of kind the most according to claim 1, it is characterised in that described equilateral three
The length of side of dihedral insulator chain is required to determine by straight line pole shaft tower phase spacing, the variation lengthened insulative substring overall length that both sides connect
Degree is then determined by tower window hanging point position and intersection point locus, equilateral triangle type top.
Big " V " formula single loop compact type tower window construction of kind the most according to claim 2, it is characterised in that described variation adds
Actual insulation substring body length in long insulator string structure requires to determine according to electric insulation, and remainder is then by more piece PT type
Adjustment plate headtotail mends long obtaining；Substantially same common " V " insulator string of the requirement of strength of middle triangle type insulator, described two
The mutual angle of side variation lengthened insulative substring is 120 °, and supports the total load head of three-phase conducting wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610509785.4A CN106121340A (en) | 2016-07-01 | 2016-07-01 | A kind of big " V " formula single loop compact type tower window construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610509785.4A CN106121340A (en) | 2016-07-01 | 2016-07-01 | A kind of big " V " formula single loop compact type tower window construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106121340A true CN106121340A (en) | 2016-11-16 |
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ID=57467991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610509785.4A Pending CN106121340A (en) | 2016-07-01 | 2016-07-01 | A kind of big " V " formula single loop compact type tower window construction |
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| CN (1) | CN106121340A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1733610A1 (en) * | 1990-06-29 | 1992-05-15 | Северо-Западное Отделение Всесоюзного Государственного Проектно-Изыскательского И Научно-Исследовательского Института Энергетических Систем И Электрических Сетей "Энергосетьпроект" | Supply line support |
| RU2295015C1 (en) * | 2005-07-28 | 2007-03-10 | Юрий Робертович Гунгер | Single-circuit support with brace (variants) |
| CN201528175U (en) * | 2009-09-29 | 2010-07-14 | 中国电力工程顾问集团东北电力设计院 | Linear tower in mesh shaped string suspension mode |
| 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 |
| CN102409888A (en) * | 2010-09-25 | 2012-04-11 | 河南省电力公司焦作供电公司 | Improved cat-head type tower |
| CN203569951U (en) * | 2013-11-26 | 2014-04-30 | 国家电网公司 | Adjustable tower window |
| CN203867262U (en) * | 2013-12-15 | 2014-10-08 | 河南省电力勘测设计院 | Tower head of ultra-high voltage direct-current single-loop crossing tower |
-
2016
- 2016-07-01 CN CN201610509785.4A patent/CN106121340A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1733610A1 (en) * | 1990-06-29 | 1992-05-15 | Северо-Западное Отделение Всесоюзного Государственного Проектно-Изыскательского И Научно-Исследовательского Института Энергетических Систем И Электрических Сетей "Энергосетьпроект" | Supply line support |
| RU2295015C1 (en) * | 2005-07-28 | 2007-03-10 | Юрий Робертович Гунгер | Single-circuit support with brace (variants) |
| CN201528175U (en) * | 2009-09-29 | 2010-07-14 | 中国电力工程顾问集团东北电力设计院 | Linear tower in mesh shaped string suspension mode |
| CN102409888A (en) * | 2010-09-25 | 2012-04-11 | 河南省电力公司焦作供电公司 | Improved cat-head type tower |
| 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 |
| CN203569951U (en) * | 2013-11-26 | 2014-04-30 | 国家电网公司 | Adjustable tower window |
| CN203867262U (en) * | 2013-12-15 | 2014-10-08 | 河南省电力勘测设计院 | Tower head of ultra-high voltage direct-current single-loop crossing tower |
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Application publication date: 20161116 |