CN208885100U - The composite material cross arm shaft tower of one kind ± 800kV combined insulation - Google Patents
The composite material cross arm shaft tower of one kind ± 800kV combined insulation Download PDFInfo
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- CN208885100U CN208885100U CN201821571487.9U CN201821571487U CN208885100U CN 208885100 U CN208885100 U CN 208885100U CN 201821571487 U CN201821571487 U CN 201821571487U CN 208885100 U CN208885100 U CN 208885100U
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- material cross
- tower
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Abstract
The utility model discloses the composite material cross arm shaft towers of one kind ± 800kV combined insulation, including the tower body supported by tower leg, earth wire support is arranged in the top of tower body, and the two sides of tower body are symmetrically arranged with composite material cross arm, and the end of composite material cross arm hangs composite insulator；The composite material cross arm includes support insulator and the oblique pull insulator for upwarping drawing to support insulator；It is connect by composite insulator with conducting wire.The utility model utilizes the combined insulation performance of composite material cross arm and composite insulator, cross-arm length is reduced, line corridor width is effectively reduced, while reducing tower weight, project cost is saved, convenient for promoting and applying in high pressure, super-pressure and UHV transmission line engineering.
Description
Technical field
The utility model relates to high voltage power transmission fields, and in particular to the composite material cross arm of one kind ± 800kV combined insulation
Shaft tower.
Background technique
Current transmission tower mainly uses all steel prepared material, as shown in Figure 1, needing to expend a large amount of steel, there is weight
It measures the problems such as big, construction transport and operation and maintenance are difficult, therefore the development using novel shaft tower material as transmission tower field
Trend.
Composite material (FRP) is due to good with high-strength, lightweight, corrosion-resistant, handling ease, designability and insulation performance
The advantages that, increasingly paid attention to by engineering circles, favored especially for power transmission and transformation industry, is that steel is replaced to build transmission tower
One of ideal material.In recent years, with further decreasing for composite material cost and being constantly progressive for technique, domestic composite material
The research of shaft tower is increasing, and graduallys mature.For composite material pole tower, previous research both domestic and external is concentrated mainly on
In " single lever-type ", in recent years, the research of lattice is also gradually increased, this is primarily due to the elasticity modulus of composite material and resists
Compressive Strength is lower, and the bearing capacity of single pole structure is difficult to meet the strength and stiffness requirement of the big load shaft tower of high voltage, therefore special
High pressure and extra high voltage network composite material tower should use the structural shape of " lattice ", straight in Ning Dong-Shandong ± 660kV
Stream transmission of electricity demonstration project pilot application.On the basis of the research of lattice composite material pole tower, in order to give full play to composite material
The characteristics of good insulation preformance, in Xinjiang Power and Northwest Grid networking second channel 750kV engineering, ± 800kV Ling Zhou-Shao Xingte
Compound cross-arm shaft tower has been applied successfully in 1000kV Xi Meng-triumph extra-high-voltage alternating current engineering again for high voltage DC engineering.
But above-mentioned compound cross-arm shaft tower in the prior art, insulation fully rely on composite material, lead to line corridor
Width increases, larger in the regional enforcement difficulty of line corridor anxiety in this way, should not use.
Utility model content
The purpose of this utility model is that being directed to above-mentioned the problems of the prior art, one kind ± 800kV combined insulation is provided
Composite material cross arm shaft tower, composite material cross arm end hang composite insulator, using composite material cross arm and it is compound absolutely
The combined insulation performance of edge shortens cross-arm length, reduces width of corridor, while reducing tower weight, saves material, work is effectively reduced
Journey cost.
To achieve the goals above, the technical solution adopted in the utility model are as follows:
Including the tower body supported by tower leg, earth wire support is arranged in the top of tower body, and the two sides of tower body are symmetrically arranged with compound
The end of material cross-arm, composite material cross arm hangs composite insulator；The composite material cross arm include support insulator with
And the oblique pull insulator for upwarping drawing to support insulator；It is connect by composite insulator with conducting wire.
The support insulator be in the shape of the letter V in the same plane it is arranged in a crossed manner have two, each support insulator it is upper
Side is provided with an oblique pull insulator, and one end of all support insulators and oblique pull insulator links together.
Preferably, each support insulator of each pair of composite material cross arm and oblique pull insulator are filled by the same steel node
It sets and is attached end, wherein the support insulator is connect by cross plate connector with steel node apparatus, institute
The oblique pull insulator stated is connect by U-shaped ring connector with steel node apparatus.Oblique pull insulator passes through U-shaped ring connector and tower body
Connection, the both ends of support insulator are respectively equipped with steel pipe socket, wherein the first steel pipe socket passes through cross plate connector and steel section
Point device is attached；Second steel pipe socket is attached by cross plate connector through steel plate and tower body.
Composite insulator upper end is connect by hardware with steel node apparatus, and lower end passes through connection gold utensil connecting wire.
The oblique pull insulator is flexible piece, and support insulator is rigid member, and composite material uses glass reinforced plastic.
Full skirt is continuously provided on support insulator, oblique pull insulator and composite insulator, and close to post insulator
The side of son and oblique pull insulator connecting pin is provided with grading ring, and the lower part of composite insulator is arranged close to the position of connecting wire
There is grading ring.
Compared with prior art, the utility model is with following the utility model has the advantages that by being symmetrical arranged in the two sides of tower body
Composite material cross arm, then composite insulator is hung in the end of composite material cross arm, utilize composite material cross arm and compound inslation
The combined insulation performance of son, reduces cross-arm length, effectively reduces line corridor width, while reducing tower weight, save
Project cost, convenient for being promoted and applied in high pressure, super-pressure and UHV transmission line engineering.With conventional compound cross-arm shaft tower
It compares, the utility model uses combined insulation scheme, and width of corridor saves 10%, advantageously reduces housing demolition amount and saves soil
Ground resource, compared to conventional angle steel tower, the steel tower weight of the utility model reduces about 19.4%, and base concrete side's amount reduces
2.4%, reinforcement foundation reduces 7%, and comprehensive cost reduces about 15.4%.The utility model upwarps cross-arm side using follow-on
Case, pattern is graceful, and simple structure is utilized the insulation characterisitic of composite material and insulator, reduces power transmission circuit caused by windage pollution flashover
The probability of accident, improving line security operation level simultaneously because steel construction part is continuous realizes ground connection lightning protection.This is practical
The composite material of novel use has the characteristics that corrosion-resistant, high-low temperature resistant, stolen possibility are small, also reduce the maintenance of route at
This.
Detailed description of the invention
The structural schematic diagram of Fig. 1 all-steel transmission tower；
The line chart of Fig. 2 the utility model composite material cross arm shaft tower；
The electrical installation schematic diagram of Fig. 3 the utility model composite material cross arm shaft tower；
The composite material cross arm main view of Fig. 4 a the utility model；
The composite material cross arm top view of Fig. 4 b the utility model；
The composite insulator structure schematic diagram of Fig. 5 the utility model；
In attached drawing: 1- support insulator；2- oblique pull insulator；3- composite insulator；4- earth wire support；5- tower body；6- tower
Leg；7- steel node apparatus；The first steel pipe socket of 8-；The second steel pipe socket of 9-；10- cross plate connector；11- grading ring；12-U
Type ring connector；13- hardware；14- connection gold utensil.
Specific embodiment
The following describes the utility model in further detail with reference to the accompanying drawings.
Referring to fig. 2, the composite material cross arm shaft tower of the utility model ± 800kV combined insulation, including what is supported by tower leg 6
Earth wire support 4 is arranged in the top of tower body 5, tower body 5, and the two sides of tower body 5 are symmetrically arranged with composite material cross arm, composite material cross arm
End hang composite insulator 3.Composite material cross arm includes support insulator 1 and leads for upwarping to support insulator 1
The oblique pull insulator 2 of drawing, is connect by composite insulator 3 with conducting wire.A and Fig. 4 b referring to fig. 4, support insulator 1 is same flat
Be in the shape of the letter V on face it is arranged in a crossed manner have two, the top of each support insulator 1 is provided with an oblique pull insulator 2, Suo Youzhi
Column insulator 1 and one end of oblique pull insulator 2 link together.Each support insulator 1 of each pair of composite material cross arm and tiltedly
End is attached by sliding insulator 2 by the same steel node apparatus 7, and support insulator 1 passes through cross plate connector
10 connect with steel node apparatus 7, and oblique pull insulator 2 is connect by U-shaped ring connector 12 with steel node apparatus 7.
The oblique pull insulator 2 of the utility model is connect by U-shaped ring connector 12 with tower body 5, the both ends of support insulator 1
It is respectively equipped with steel pipe socket, wherein the first steel pipe socket 8 carries out bolt company by cross plate connector 10 and steel node apparatus 7
It connects；Second steel pipe socket 9 is bolted by cross plate connector 10 through steel plate and tower body 5.Support insulator 1 and tiltedly
It is continuously provided with full skirt on sliding insulator 2, and the side of the two connecting pin is provided with grading ring 11.
As shown in figure 5, two groups of 3 upper ends of composite insulator are connected by hardware 13 and steel node apparatus 7, lower end passes through
Connection gold utensil 14 is connected with conducting wire, and full skirt is provided on composite insulator 3, and grading ring 11 is arranged above hardware 14.
Steel node apparatus 7 includes a steel pipe, several pieces of connecting plates, two pieces of thread gripping-boards and stiffener.Earth wire support 4 is steel
Structure, earth wire support 4, tower body 5 and tower leg 6 are made of several angle iron components.Compound cross-arm by electric clearance and insulation away from
It is all made of composite element from the component in coverage, the material of composite element is glass reinforced plastic.
According to ± 800kV combined insulation composite material cross arm the tower that above-mentioned technical proposal is realized, composite material cross arm is utilized
With the combined insulation performance of composite insulator, cross-arm length is shortened, reduces width of corridor, while reducing tower weight, is saved
Material, is effectively reduced project cost, convenient for promoting and applying in high pressure, super-pressure and UHV transmission line engineering.
(1) combined insulation；
The combined insulation form for using composite material cross arm and composite insulator for the first time has studied the current potential point of combined insulation
Cloth situation.
(2) compound material insulation cross-arm；
Composite element end coupling is answered two composite material support insulators, two by steel node apparatus
Condensation material oblique pull insulator connects integral with a set of composite insulator, constitutes the composite material cross arm of combined insulation.
(3) Force principle of the composite material cross arm shaft tower of combined insulation；
The composite material cross arm shaft tower of combined insulation is a space truss system, it utilizes composite material cross arm and compound
The combined insulation performance of insulator realizes the purpose of insulation, while by the full skirt on surface, increasing the retting-flax wastewater of cross-arm；It is logical
Crossing grading ring improves field distribution.To lead simultaneously, line load and tower body wind load be transferred to steel construction tower body.Cross-arm pressure
Tower body is transferred to by two composite material support insulators；And pulling force is transmitted to tower by two composite material oblique pull insulators
Body.
(4) lightning protection of the composite material cross arm shaft tower of combined insulation and ground connection；
The ground connection of the composite material cross arm shaft tower of combined insulation is realized by external steel structure member, by earth wire support
4 connect with ground wire, and the earth wire support 4 of steel construction is connected with the tower body 5 of steel construction, achieve the purpose that be grounded lightning protection.
(5) insulation configuration of the composite material cross arm shaft tower of combined insulation；
Insulation distance is all satisfied by the distance of guarantee conducting wire hanging point to any metalwork to achieve the purpose that tower head insulate.
Insulation distance is determined and carrying out insulation configuration to different voltages, height above sea level and gradation for surface pollution.Meanwhile for operating electricity
In the range for the air gap circle that pressure and the air gap influence, it is all made of composite element, realizes the purpose of insulation, such as Fig. 3
It is shown.
It, cannot the above content is specific preferred embodiment further detailed description of the utility model is combined
Assert that specific embodiment of the present utility model is only limitted to this, to those skilled in the art, before not departing from design
It puts, several simple deduction or replace can also be made, all shall be regarded as belonging to the patent protection model that claims determine
It encloses.
Claims (7)
1. the composite material cross arm shaft tower of one kind ± 800kV combined insulation, it is characterised in that: including the tower supported by tower leg (6)
Earth wire support (4) are arranged in the top of body (5), tower body (5), and the two sides of tower body (5) are symmetrically arranged with composite material cross arm, composite wood
Expect that the end of cross-arm hangs composite insulator (3)；The composite material cross arm includes support insulator (1) and is used for branch
Column insulator (1) upwarps the oblique pull insulator (2) of drawing；It is connect by composite insulator (3) with conducting wire.
2. the composite material cross arm shaft tower of ± 800kV combined insulation according to claim 1, it is characterised in that: the branch
Column insulator (1) be in the shape of the letter V in the same plane it is arranged in a crossed manner have two, be provided with above each support insulator (1)
A piece oblique pull insulator (2), all support insulators (1) and one end of oblique pull insulator (2) link together.
3. the composite material cross arm shaft tower of ± 800kV combined insulation according to claim 1, it is characterised in that: each pair of compound
Each support insulator (1) of material cross-arm is connected end by the same steel node apparatus (7) with oblique pull insulator (2)
It connects, wherein the support insulator (1) is connect by cross plate connector (10) with steel node apparatus (7), described
Oblique pull insulator (2) is connect by U-shaped ring connector (12) with steel node apparatus (7).
4. the composite material cross arm shaft tower of ± 800kV combined insulation according to claim 3, it is characterised in that: oblique pull insulation
Sub (2) are connect by U-shaped ring connector (12) with tower body (5), and the both ends of support insulator (1) are respectively equipped with steel pipe socket, wherein
First steel pipe socket (8) is attached by cross plate connector (10) with steel node apparatus (7)；Second steel pipe socket (9) is logical
Cross plate connector (10) is crossed to be attached through steel plate and tower body (5).
5. the composite material cross arm shaft tower of ± 800kV combined insulation according to claim 3, it is characterised in that: compound inslation
Sub (3) upper end is connect by hardware (13) with steel node apparatus (7), and lower end passes through connection gold utensil (14) connecting wire.
6. the composite material cross arm shaft tower of ± 800kV combined insulation according to claim 1, it is characterised in that: described is oblique
Sliding insulator (2) is flexible piece, and support insulator (1) is rigid member, and composite material uses glass reinforced plastic.
7. the composite material cross arm shaft tower of ± 800kV combined insulation according to claim 1, it is characterised in that: the branch
Full skirt is continuously provided on column insulator (1), oblique pull insulator (2) and composite insulator (3), and close to support insulator
(1) it is provided with grading ring (11) with the side of oblique pull insulator (2) connecting pin, the lower part of the composite insulator (3) is close to even
The position for connecing conducting wire is provided with grading ring (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821571487.9U CN208885100U (en) | 2018-09-26 | 2018-09-26 | The composite material cross arm shaft tower of one kind ± 800kV combined insulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821571487.9U CN208885100U (en) | 2018-09-26 | 2018-09-26 | The composite material cross arm shaft tower of one kind ± 800kV combined insulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208885100U true CN208885100U (en) | 2019-05-21 |
Family
ID=66513921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821571487.9U Active CN208885100U (en) | 2018-09-26 | 2018-09-26 | The composite material cross arm shaft tower of one kind ± 800kV combined insulation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208885100U (en) |
-
2018
- 2018-09-26 CN CN201821571487.9U patent/CN208885100U/en active Active
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