CN203939278U - The narrow base power transmission tower of a kind of novel 220kV common-tower double-return road lattice composite material - Google Patents
The narrow base power transmission tower of a kind of novel 220kV common-tower double-return road lattice composite material Download PDFInfo
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- CN203939278U CN203939278U CN201420349122.7U CN201420349122U CN203939278U CN 203939278 U CN203939278 U CN 203939278U CN 201420349122 U CN201420349122 U CN 201420349122U CN 203939278 U CN203939278 U CN 203939278U
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Abstract
The narrow base power transmission tower of a kind of 220kV common-tower double-return road lattice composite material, it mainly comprises tower leg, tower body, double loop composite material tower head and earth wire support; Described double loop composite material tower head is arranged vertically and forms by being the three layer conductor cross-arms that are arranged above and below, be followed successively by from top to bottom upper conductor cross-arm, middle wire cross-arm and lower wire cross-arm, six phase conductors all adopt " I " type insulator string and power transmission tower wire cross-arm to connect; Described double loop composite material tower head is: the oblique material of tower body and cross-arm member adopt high-strength and high-modulus glass fibre reinforced composion profiled-cross-section member, profiled-cross-section component surface is coated with one deck fiber protective coating, the inner light foam that adopts is filled, and member cut-offs place and adopts outsourcing angle steel to connect; It has lightweight, and strength-weight ratio value is large, saves great deal of steel, and good insulation preformance, can effectively reduce insulating Design level, reduces phase conductor spacing, reduces width of corridor, easily machine-shaping, installation and transportation and the feature such as easy to assembly.
Description
Technical field
The utility model relates to the narrow base power transmission tower of a kind of 220kV composite material, in particular, relate to a kind of application technology of the narrow base power transmission tower of common-tower double-return road lattice of 220kV tower head employing composite material.
Background technology
Along with the high speed development of urban construction, soil becomes more and more rare resource, and the idea that people economize the land resource and theory attractive in appearance, environmental protection constantly strengthen.The problem of current existence is, is along with expanding economy on the one hand, and the power consumption in city sharply increases, and the transmission capacity of some circuits can not meet the requirement of enterprise and people's electricity consumption far away; And on the other hand, due to the very big raising of the common people to environment and sense of self-protection now, make transmission line of electricity become very difficult at aspects such as policy processing, removing and resettlement, saving corridors.This just composite material in one of major reason of the application of power transmission tower.
The advantages such as that composite material has is lightweight, intensity is high, corrosion-resistant, machine-shaping convenient, good electrical insulating property, current power transmission overhead line structures adopt composite material to become possibility.After adopting composite material, can save a large amount of steel, and utilize its insulating properties, not only be easy to solve windage yaw and the pollution flashover accident of circuit, improve line security operation level, also can dwindle tower head size simultaneously, reduce width of corridor, economize the land resource, reduce removal expense, reduce construction investment cost.In addition, because composite material is lightweight, the easily feature of machine-shaping, can significantly reduce transport and the assembly cost of shaft tower.
Narrow base steel tower (rootlet opens tower), both there is processing, the transport, easy to assembly of common steel tower, the advantage that cost is economized, have again single-column steel pipe bar take up an area little, cross-arm is shorter, busy line corridor is little, the advantage of better appearance, can make full use of urban green belts, generally can reduce and take up an area 40%～60%, reach resources conservation, eco-friendly object, in ensureing the safe operation and engineering construction economical rationality of circuit, for the level of security that improves circuit operation provides reliable technical basis.In recent years, along with the development of urban construction, narrow base tower technology had the example of more successful Application in surrounding city circuit.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of insulating properties that composite material is good and higher mechanical strength of utilizing is provided, optimizes lattice composite material narrow base power transmission tower in 220kV common-tower double-return road that corridor takes up room, that tower head adopts composite material to provide.
The purpose of this utility model completes by following technical solution, the narrow base power transmission tower of described 220kV common-tower double-return road lattice composite material, and it mainly comprises tower leg, tower body, double loop composite material tower head and earth wire support; Described double loop composite material tower head is arranged vertically and forms by being the three layer conductor cross-arms that are arranged above and below, be followed successively by from top to bottom upper conductor cross-arm, middle wire cross-arm and lower wire cross-arm, six phase conductors all adopt " I " type insulator string and power transmission tower wire cross-arm to connect.
Described double loop composite material tower head is: the oblique material of tower body and cross-arm member adopt high-strength and high-modulus glass fibre reinforced composion profiled-cross-section member, profiled-cross-section component surface is coated with one deck fiber protective coating (alicyclic ring epoxide resin and composition thereof), the inner light foam that adopts is filled, and member cut-offs place and adopts outsourcing angle steel to connect; The main material of tower body adopts circular composite material tube, is connected and adopts flange between main material and main material; Other position of composite element end and steel tower is with bolts.
Due to compound material insulation better performances, guaranteeing can to reduce air clearance between insulator string length and wire and tower body under same dielectric level conditions, thereby reducing three-phase conducting wire spacing, compression corridor; Meeting under the prerequisite in electrical safety gap, thereby tower head height can effectively reduce raising lightning withstand level.
Improve as one, six phase conductors all adopt " I " type insulator string and power transmission tower wire cross-arm to connect, and cross-arm length is further shortened in the long minimizing of string, thus compression circuit width of corridor.
Improve as one, Ta Genkai can ensure that root opens in 6m completely, can reduce and take up an area 40%～60%, tower can be stood in the greenbelt of urban road, has larger exploitativeness.
Improve as one, the minimizing of gap circle can reduce tower head vertical interval, thereby improves lightning withstand level.
Improve as one, this composite material tower head adopts shape tube cross section, compares the composite element of traditional end employing flange, and weight greatly reduces, and installation is basically identical with conventional tower, has avoided connection changeover portion, convenient and quick construction.
The utility model integrates up-to-date composite material power transmission tower and the advantage of narrow base tower, by rational electric planning and structural calculation, utilize the insulating properties of composite material, suitably reduce the length of insulator string, reduce the windage yaw of insulator string, take too much, the wide problem in corridor thereby effectively solve transmission line of electricity; Open by reasonable compression root, reach the object that reduces occupation of land.The utility model will be studied the lattice power transmission tower of 220kV common-tower double-return road series, and develops a kind of novel tower head composite material lattice formula narrow base transmission line of electricity tangent tower and angle tower.
Compared with prior art, the utlity model has following useful technique effect: 1) lightweight, strength-weight ratio value is large, save great deal of steel; 2) good insulation preformance, effectively reduces insulating Design level, reduces phase conductor spacing, reduces width of corridor, can significantly reduce in addition lightning flash over, and ice such as dodges, waves at the accident; 3) resistance to chemical attack, wear-resisting, waterproof, fire resistant flame retardant; 4) easily machine-shaping, installation and transportation and easy to assembly.
Brief description of the drawings
Accompanying drawing 1 is overall structure schematic diagram of the present utility model;
Accompanying drawing 2 is composite material opposite sex section structural member schematic diagram described in the utility model;
Accompanying drawing 3 is the main material joint flange of tower head described in the utility model schematic diagram.
Label shown in figure has: on 1 earth wire support, 2 wires, in cross-arm, 3 wires, under cross-arm, 4 wires, cross-arm, 5 tower body tops, 6 tower bodies, 7 tower legs, 8 tower heads, 9 insulator strings, 10 different in nature cross sections, 11 member surface coatings, 12 component inside fillers, 13 members connect cornerite steel; 14 flanges, 15 flange floors, 16 flange, 17 pins, 18 flange bolts.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further introduced.Shown in Fig. 1-3, the narrow base power transmission tower of 220kV common-tower double-return described in the utility model road lattice composite material, it mainly comprises tower leg 7, tower body 6, double loop composite material tower head 8 and earth wire support 1; Described double loop composite material tower head 8 is arranged vertically and forms by being the three layer conductor cross-arms that are arranged above and below, being followed successively by from top to bottom upper conductor cross-arm 2, middle wire cross-arm 3 and lower wire cross-arm 4, six phase conductors all adopts " I " type insulator string and power transmission tower wire cross-arm to connect.
Described double loop composite material tower head 8 is: the oblique material of tower body and cross-arm member adopt high-strength and high-modulus glass fibre reinforced composion profiled-cross-section member 10, profiled-cross-section component surface is coated with one deck fiber protective coating (alicyclic ring epoxide resin and composition thereof) 11, the inner light foam 12 that adopts is filled, and member cut-offs place and adopts outsourcing angle steel 13 to connect; The main material of tower body adopts circular composite material tube, is connected and adopts flange 14 between main material and main material; Other position of composite element end and steel tower is with bolts.
Due to compound material insulation better performances, guaranteeing can to reduce air clearance between insulator string length and wire and tower body under same dielectric level conditions, thereby reducing three-phase conducting wire spacing, compression corridor; Meeting under the prerequisite in electrical safety gap, thereby tower head height can effectively reduce raising lightning withstand level.
Improve as one, six phase conductors all adopt " I " type insulator string and power transmission tower wire cross-arm to connect, and cross-arm length is further shortened in the long minimizing of string, thus compression circuit width of corridor.
Improve as one, Ta Genkai can ensure that root opens in 6m completely, can reduce and take up an area 40%～60%, tower can be stood in the greenbelt of urban road, has larger exploitativeness.
Improve as one, the minimizing of gap circle can reduce tower head vertical interval, thereby improves lightning withstand level.
Improve as one, this composite material tower head adopts shape tube cross section, compares the composite element of traditional end employing flange, and weight greatly reduces, and installation is basically identical with conventional tower, has avoided connection changeover portion, convenient and quick construction.
Embodiment: a kind of narrow base power transmission tower in common-tower double-return road of novel lattice composite material tower head, it comprises earth wire support 1, tower leg 7, tower body 6, tower head 8 and wire insulation substring 9, and described tower head 8 is made up of cross-arm 4, tower body top 5 under cross-arm 3, wire in cross-arm on wire 2, wire.
After common-tower double-return road narrow base power transmission tower tower head adopts composite material, according to the semi-insulating consideration of cross-arm, insulator string is long to be shortened, corresponding the reducing of gap circle, and width of corridor reduces, and improves unit corridor transmission capacity, has embodied good economy and the feature of environmental protection.
Claims (2)
1. the narrow base power transmission tower of 220kV common-tower double-return road lattice composite material, it mainly comprises tower leg (7), tower body (6), double loop composite material tower head (8) and earth wire support (1); It is characterized in that described double loop composite material tower head (8) is arranged vertically and forms by being the three layer conductor cross-arms that are arranged above and below, be followed successively by from top to bottom upper conductor cross-arm (2), middle wire cross-arm (3) and lower wire cross-arm (4), six phase conductors all adopt " I " type insulator string and power transmission tower wire cross-arm to connect.
2. the narrow base power transmission tower of 220kV common-tower double-return according to claim 1 road lattice composite material, it is characterized in that described double loop composite material tower head (8) is: the oblique material of tower body and cross-arm member adopt high-strength and high-modulus glass fibre reinforced composion profiled-cross-section member (10), profiled-cross-section component surface is coated with one deck fiber protective coating (11), the inner light foam (12) that adopts is filled, and member cut-offs place and adopts outsourcing angle steel (13) to connect; The main material of tower body adopts circular composite material tube, is connected and adopts flange (14) between main material and main material; Other position of composite element end and steel tower is with bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420349122.7U CN203939278U (en) | 2014-06-27 | 2014-06-27 | The narrow base power transmission tower of a kind of novel 220kV common-tower double-return road lattice composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420349122.7U CN203939278U (en) | 2014-06-27 | 2014-06-27 | The narrow base power transmission tower of a kind of novel 220kV common-tower double-return road lattice composite material |
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| Publication Number | Publication Date |
|---|---|
| CN203939278U true CN203939278U (en) | 2014-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420349122.7U Expired - Fee Related CN203939278U (en) | 2014-06-27 | 2014-06-27 | The narrow base power transmission tower of a kind of novel 220kV common-tower double-return road lattice composite material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203939278U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104458455A (en) * | 2014-12-05 | 2015-03-25 | 国网福建省电力有限公司 | Spatial tower leg structure testing method of narrow-based power transmission steel pipe tower |
| 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 |
| CN112431466A (en) * | 2020-11-27 | 2021-03-02 | 国网陕西省电力公司建设分公司 | Double-loop composite tower head tower |
-
2014
- 2014-06-27 CN CN201420349122.7U patent/CN203939278U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104458455A (en) * | 2014-12-05 | 2015-03-25 | 国网福建省电力有限公司 | Spatial tower leg structure testing method of narrow-based power transmission steel pipe tower |
| CN104458455B (en) * | 2014-12-05 | 2017-03-29 | 国网福建省电力有限公司 | Narrow base power transmission steel pipe tower space tower leg structured testing method |
| 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 |
| CN112431466A (en) * | 2020-11-27 | 2021-03-02 | 国网陕西省电力公司建设分公司 | Double-loop composite tower head tower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHINA ENERGY ENGINEERING GROUP ZHEJIANG ELECTRIC P Free format text: FORMER NAME: ZHEJIANG PROV. ELECTRIC POWER DESIGN INST. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Hangzhou City, Zhejiang province 310012 GUCUI Road No. 68 Patentee after: Energy source in China construction group Zhejiang Province Power Design Institute Co., Ltd Address before: Hangzhou City, Zhejiang province 310012 GUCUI Road No. 68 Patentee before: Zhejiang Electric Power Design Institute |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141112 Termination date: 20150627 |
|
| EXPY | Termination of patent right or utility model |