CN107587775A - Power transmission tower - Google Patents

Power transmission tower Download PDF

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Publication number
CN107587775A
CN107587775A CN201710970659.3A CN201710970659A CN107587775A CN 107587775 A CN107587775 A CN 107587775A CN 201710970659 A CN201710970659 A CN 201710970659A CN 107587775 A CN107587775 A CN 107587775A
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China
Prior art keywords
tower
power transmission
insulator
tower body
head
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CN201710970659.3A
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Chinese (zh)
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CN107587775B (en
Inventor
马斌
郁杰
王荣华
方江
王青占
刘超
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Shanghai Shenma Electric Power Engineering Co ltd
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Jiangsu Shenma Electric Power Co Ltd
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Abstract

The present invention relates to a kind of power transmission tower, and it includes tower body, including in the tower head of polygonal ring shape and the tower body for supporting the tower head;The angle of the bottom of the tower head is connected to the top of the tower body;Interphase insulator V is gone here and there, and suspension is connected on the tower head, and in the annular section of the tower head;And two groups of mutually compound cross-arms in side, respectively positioned at the both sides of the tower body;The end of the mutually compound cross-arm in side be connected in diverging arms or the tower body on, the diverging arms for the tower head bottom angle two sides.Above-mentioned power transmission tower, due to its special structure, the mutually compound cross-arm in side makes full use of the design feature of tower body, reduces width of corridor.

Description

Power transmission tower
Technical field
The present invention relates to technical field of electric power transmission, more particularly to a kind of power transmission tower.
Background technology
At present, power transmission tower is generally wineglass tower or cat-head transmission tower, namely tower body is in goblet shape, or in cat head shape.But wineglass The structure of tower and cat-head transmission tower, it is unfavorable for the further reduction of width of corridor.
The content of the invention
Based on this, it is necessary to it is big to the width of corridor of power transmission tower in the prior art the problem of, there is provided a kind of width of corridor is small Power transmission tower.
A kind of power transmission tower, including:
Tower body, including in the tower head of polygonal ring shape and the tower body for supporting the tower head;The tower head it is most lower The angle of side is connected to the top of the tower body;
Interphase insulator V is gone here and there, and suspension is connected on the tower head, and in the annular section of the tower head;
And two groups of mutually compound cross-arms in side, respectively positioned at the both sides of the tower body;The end of the mutually compound cross-arm in side connects Be connected in diverging arms or the tower body on, the diverging arms for the tower head bottom angle two sides.
Above-mentioned power transmission tower, due to its special structure, the mutually compound cross-arm in side makes full use of the design feature of tower body, reduces Width of corridor.
In one of the embodiments, the mutually compound cross-arm in the side includes line insulator, support insulator and metal Connector;The end of the line insulator and the support insulator is linked together by the metal connecting piece.
In one of the embodiments, end of the line insulator away from the metal connecting piece is connected to described point On yoke, end of the support insulator away from the metal connecting piece is connected on the tower body.
In one of the embodiments, the support insulator is connected with the stretching crab bolt of the tower body.
In one of the embodiments, the line insulator hangs on the stretching plate of the diverging arms by connection gold utensil On.
In one of the embodiments, end of the line insulator away from the metal connecting piece is connected to the friendship On yoke, end of the support insulator away from the metal connecting piece is connected to the connection of the tower body and the diverging arms At point.
In one of the embodiments, the quantity of the support insulator is two, the extension of two support insulators The angle of line composition is 15 °~75 °.
In one of the embodiments, the angle of the bottom of the tower head is 30 ° -120 °.
In one of the embodiments, the power transmission tower also includes earth wire support, and the earth wire support is located at the tower head Top both sides.
In one of the embodiments, the tower body is built by some angle steel.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of the power transmission tower of an embodiment of the present invention.
Fig. 2 is the schematic elevation view of the power transmission tower in Fig. 1.
Fig. 3 is the schematic side view of the power transmission tower in Fig. 1.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with embodiment The present invention is further elaborated.It should be appreciated that embodiment described herein is only to explain the present invention, It is not intended to limit the present invention.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention The implication that technical staff is generally understood that is identical.Term used in the description of the invention herein is intended merely to description tool The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein " and/or " include one or more The arbitrary and all combination of related Listed Items.
Referring to Fig. 1-3, the power transmission tower 100 of an embodiment of the present invention, including tower body 110, interphase insulator V string 130, And the mutually compound cross-arm 120 in two groups of sides.
Wherein, tower body 110 is the main part of power transmission tower 100, is the skeleton of power transmission tower 100.Its main function is to support Interphase insulator V strings 130 and the mutually compound cross-arm 120 in two groups of sides are installed.
Specifically, tower body 110 includes tower head 111 and the tower body 112 for supporting tower head 111.Tower head 111 is in polygon Ring-type, that is to say, that tower head 111 is end to end by some sides and connects cyclization.The region that tower head 111 is irised out forms tower window 101. Preferably, polygon is convex polygon, so can effectively increase the area of tower window 101, is more beneficial for interphase insulator V strings 130 installation.
In the present embodiment, 111 hexagonal ring-type of tower head.It is, of course, understood that the tower head 111 of the present invention Hexagonal annular is not limited to, can also be other polygonal ring shapes, such as pentagon ring-type.
Specifically, the angle α of the bottom of tower head 111 is connected to the top of tower body 112, so as to which tower body 112 is with by tower head 111 Support.Tower body 110 is seen from the bottom up, and the angle α of the bottom of tower head 111 two sides can regard the top of tower body 112 as and separate Branch;So the angle α of the bottom of tower head 111 two sides in the present invention, are defined as diverging arms 1111.
Tower body 112 is in the form of a column.Preferably, tower body 112 is in column is bored, i.e. the top of tower body 112 is smaller, and bottom is larger, So it is more beneficial for the firm of whole tower body 110.
In the present embodiment, tower body 110 is built by some angle steel.It is, of course, understood that the tower of the present invention Body 110 is not limited to said structure, can also be that other structures, such as composite are built.
Wherein, show for convenience, interphase insulator V strings 130 are represented with V-shaped line in Fig. 1-2.Interphase insulator V The main function of string 130 is to carry interphase power transmission line (not shown).The suspension of interphase insulator V strings 130 is connected to tower head On 111, and interphase insulator V strings 130 are located in the annular section of tower head 111, namely interphase insulator V strings 130 are located at At tower window 101, so as to which interphase power transmission line runs through power transmission tower 100 at tower window 101.
In the present embodiment, interphase insulator V strings 130 are preferably made up of Composite Insulators.It is highly preferred that line Road composite insulator is the form of cladding silicon rubber umbrella skirt outside glass fibre reinforced composion.
Wherein, the main function of the mutually compound cross-arm 120 in side is to carry side phase power transmission line (not shown).Two groups of sides are mutually compound Cross-arm 120 is located at the both sides of tower body 110 respectively;That is, respectively there is the mutually compound cross-arm 120 in one group of side the both sides of tower body 110.Side The end of mutually compound cross-arm 120 is connected in diverging arms 1111 or on tower body 112.That is, the mutually compound cross-arm 120 in side is located at In the angular domain of diverging arms 111 and tower body 112.So the mutually compound cross-arm 120 in side makes full use of the features of shape of tower body 110, Both side phase power transmission line had been made to reduce width of corridor again away from interphase power transmission line.
In the present embodiment, the mutually compound cross-arm 120 in side includes line insulator 121, support insulator 122, Yi Jijin Belong to connector 123;The end of line insulator 121 and support insulator 122 is linked together by metal connecting piece 123.Its In, side phase power transmission line is hung on metal connecting piece 123, and line insulator 121 is subjected only to pulling force, and support insulator 122 is held It is stressed and moment of flexure.It can so make the structure power transmission of whole power transmission tower 100 clear, design is more reasonable.
It is highly preferred that the mutually compound cross-arm 120 in one group of side includes two line insulators 121 and two support insulators 122 With a metal connecting piece 123.On the thickness direction of tower body, the projection of two line insulators 121 overlaps, and two pillars are exhausted The projection of edge 122 also overlaps.Also just as shown in figure 1, can only see positioned at line insulator 121 above and positioned above Support insulator 122, and can't see positioned at line insulator 121 below and positioned at support insulator 122 below.
Further, moved closer to along close to the direction of metal connecting piece 123, two line insulators 121;Along remote From the direction of metal connecting piece 123, two line insulators 121 are drifted apart from.Similarly, along close to the side of metal connecting piece 123 To two support insulators 122 also move closer to;Along away from the direction of metal connecting piece 123, two support insulators 122 by Gradually separate.It can so make the mutually compound cross-arm 120 in side more scattered to the power of tower body 110, make overall structure more firm.
Preferably, the angle of the extended line composition of above-mentioned two support insulator 122 is 15 °~75 °.So it can both hold The bigger mechanical strength received, the insulation distance of compound cross-arm can be ensured again.
Preferably, end of the line insulator 121 away from metal connecting piece 123 is connected in diverging arms 1111, and pillar is exhausted End of edge 122 away from metal connecting piece 123 is connected on tower body 112.That is, the top of the mutually compound cross-arm 120 in side Divide and be connected in diverging arms 1111, and lower part is connected on tower body 112.It so can further utilize the shape of tower body 110 Shape feature, side phase power transmission line had both been set to reduce width of corridor again away from interphase power transmission line.
In the present embodiment, support insulator 122 is connected with the stretching crab bolt of tower body 112.Such stable connection, and It is simple and convenient.It is, of course, understood that the present invention support insulator 122 and tower body 112 connection be not limited to it is above-mentioned Form, it can also be that those skilled in the art think suitable other types of attachment.
In the present embodiment, line insulator 121 is hung on the stretching plate of diverging arms 1111 by connection gold utensil.This Sample stable connection, and it is simple and convenient.It is, of course, understood that the line insulator 121 of the present invention and the company of diverging arms 1111 Connect and be not limited to above-mentioned form, can also be that those skilled in the art think suitable other types of attachment.
In the present embodiment, line insulator 121 on support insulator 122 with being equipped with grading ring.It is of course also possible to According to actual conditions, one sets another to be not provided with, and also or is both not provided with.
In the present embodiment, line insulator 121 is preferably composite line insulator, and support insulator 122 is preferably Composite post insulator.It is highly preferred that line insulator 121 uses glass fiber reinforced composite material with support insulator 122 The form of the outside cladding silicon rubber umbrella skirt of material.
In the present embodiment, it is preferable that angle is 30 °~120 ° between diverging arms 1111, makes tower body 112 and tower head Structure between 111 is more firm, preferably the mutually compound cross-arm 120 in support edge.The lotus of power transmission tower each several part can so be increased Distributing homogeneity is carried, lifts whole tower mechanical property.
In the present embodiment, power transmission tower 100 also includes being used for the earth wire support 115 for carrying ground wire (not shown), ground wire Support 115 is located at the top both sides of tower head 111.Due to the special construction of power transmission tower of the present invention, compared to existing wineglass tower and Cat-head transmission tower, earth wire support 115 are shortened, and reduce the length of earth wire support 115, so as to save material, are alleviated whole The weight of body power transmission tower.
In the present embodiment, earth wire support 115 with tower head 111 equally by being built together with angle steel.
In another embodiment, end of the line insulator 121 away from metal connecting piece 130 is connected to transposition arm 1111 On, end of the support insulator 122 away from metal connecting piece 130 is connected at tower body 112 and the tie point of diverging arms 1111.
It is, of course, understood that the position for being connected to tower body 112 of line insulator 121 and support insulator 122 is simultaneously Above-mentioned position is not limited to, can be with other positions.Such as line insulator is both connected in diverging arms with support insulator, also Or line insulator is both connected on tower body with support insulator.
The power transmission tower of the present invention, the advantages of combining existing two kinds of towers of cat-head transmission tower and wineglass tower, it can be substantially reduced defeated Electric line corridor, circuit removal cost is reduced, the weight of power transmission tower mitigates significantly, and installation and transportation cost reduces.The present invention's is defeated Electric tower can make full use of the insulating properties of compound cross-arm, not resuspend suspension insulator, not only save insulator expense, and And reduce power transmission tower and exhale height.The power transmission tower of the present invention is especially suitable for each voltage class tangent tower of major network.
The power transmission tower of the present invention, side mutually uses compound cross-arm, and then can save substantial amounts of steel, can also reduce tower head Size, reduce width of corridor;The characteristics of compound cross-arm is light, and easy processing is molded, can be greatly reduced the transport of power transmission tower And assembly cost;The characteristics of big, the stolen possibility of the corrosion-resistant of compound cross-arm, high-low temperature resistant, intensity is small, the dimension of circuit can be reduced Protect cost;Simultaneously because Color tunable, nonhazardous, scrapping rear recycling, enhance " environment friendly " of circuit.
Power transmission tower provided by the present invention, compared to conventional angle steel tower, it can make to exhale high reduction, reduce line corridor width. Because the power transmission tower of the present invention does not need suspension string, therefore it can reduce and exhale height, compared to traditional angle steel tower that 500kV exhales a height of 45m, Height is exhaled to reduce 3m.And the power transmission tower of present invention advantage in terms of line corridor is reduced becomes apparent, compared to 500kV tradition wineglasses Type angle steel tower, width of corridor can reduce 11m, reduce 43%;Compared to the compound cross-arm tower of 500kV wine glass-shapeds, width of corridor also may be used 7m is reduced, reduces 32.4%.Further, since the reduction of earth wire support, the angle steel weight of power transmission tower of the invention compares wine glass-shaped Compound cross-arm tower is light.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that come for one of ordinary skill in the art Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.

Claims (10)

  1. A kind of 1. power transmission tower, it is characterised in that including:
    Tower body, including in the tower head of polygonal ring shape and the tower body for supporting the tower head;The bottom of the tower head Angle is connected to the top of the tower body;
    Interphase insulator V is gone here and there, and suspension is connected on the tower head, and in the annular section of the tower head;
    And two groups of mutually compound cross-arms in side, respectively positioned at the both sides of the tower body;The end of the mutually compound cross-arm in side is connected to In diverging arms or on the tower body, the diverging arms is the side at the angle of the bottom of the tower head.
  2. 2. power transmission tower according to claim 1, it is characterised in that the mutually compound cross-arm in side includes line insulator, branch Post insulator and metal connecting piece;The line insulator is connected with the end of the support insulator by the metal Part links together.
  3. 3. power transmission tower according to claim 2, it is characterised in that the line insulator is away from the metal connecting piece End is connected in the diverging arms, and end of the support insulator away from the metal connecting piece is connected to the tower body On.
  4. 4. power transmission tower according to claim 3, it is characterised in that the stretching plate spiral shell of the support insulator and the tower body Tether and connect.
  5. 5. power transmission tower according to claim 3, it is characterised in that the line insulator hangs on institute by connection gold utensil State on the stretching plate of diverging arms.
  6. 6. power transmission tower according to claim 2, it is characterised in that the line insulator is away from the metal connecting piece End is connected on the transposition arm, end of the support insulator away from the metal connecting piece be connected to the tower body with At the tie point of the diverging arms.
  7. 7. power transmission tower according to claim 2, it is characterised in that the quantity of the support insulator is two, described in two The angle of the extended line composition of support insulator is 15 °~75 °.
  8. 8. power transmission tower according to claim 1, it is characterised in that the angle of the bottom of the tower head is 30 °~120 °.
  9. 9. power transmission tower according to claim 1, it is characterised in that the power transmission tower also includes earth wire support, the ground wire Support is located at the top both sides of the tower head.
  10. 10. power transmission tower according to claim 1, it is characterised in that the tower body is built by some angle steel.
CN201710970659.3A 2017-10-18 2017-10-18 Power transmission tower Active CN107587775B (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108691451A (en) * 2018-07-23 2018-10-23 中国能源建设集团山西省电力勘测设计院有限公司 A kind of 500 kilovolts of single time mutually compound cross-arms in electric power pylon side
CN108691450A (en) * 2018-07-23 2018-10-23 中国能源建设集团山西省电力勘测设计院有限公司 A kind of 500 kilovolts of single time electric power pylons
CN109629899A (en) * 2018-11-29 2019-04-16 中国电力科学研究院有限公司 It is a kind of for exchanging 750kV with the device of four circuit power transmission tower of tower
CN110094100A (en) * 2019-04-28 2019-08-06 江苏神马电力股份有限公司 A kind of wineglass tower
CN110159049A (en) * 2019-04-26 2019-08-23 江苏神马电力股份有限公司 A kind of Y type tower
CN110611280A (en) * 2019-09-19 2019-12-24 成都炬能机械制造有限公司 Power transmission line anti-theft system and method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201541109U (en) * 2009-06-30 2010-08-04 中国电力工程顾问集团公司 Cathead tangent tower for UHV transmission line
CN103452370A (en) * 2012-10-25 2013-12-18 江苏神马电力股份有限公司 Compound tower for power grid power transmission lines and compound cross arm structure thereof
CN206128796U (en) * 2016-08-30 2017-04-26 国核电力规划设计研究院 Cat head tangent tower
CN207526222U (en) * 2017-10-18 2018-06-22 江苏神马电力股份有限公司 Power transmission tower

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201541109U (en) * 2009-06-30 2010-08-04 中国电力工程顾问集团公司 Cathead tangent tower for UHV transmission line
CN103452370A (en) * 2012-10-25 2013-12-18 江苏神马电力股份有限公司 Compound tower for power grid power transmission lines and compound cross arm structure thereof
CN206128796U (en) * 2016-08-30 2017-04-26 国核电力规划设计研究院 Cat head tangent tower
CN207526222U (en) * 2017-10-18 2018-06-22 江苏神马电力股份有限公司 Power transmission tower

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108691451A (en) * 2018-07-23 2018-10-23 中国能源建设集团山西省电力勘测设计院有限公司 A kind of 500 kilovolts of single time mutually compound cross-arms in electric power pylon side
CN108691450A (en) * 2018-07-23 2018-10-23 中国能源建设集团山西省电力勘测设计院有限公司 A kind of 500 kilovolts of single time electric power pylons
CN109629899A (en) * 2018-11-29 2019-04-16 中国电力科学研究院有限公司 It is a kind of for exchanging 750kV with the device of four circuit power transmission tower of tower
CN110159049A (en) * 2019-04-26 2019-08-23 江苏神马电力股份有限公司 A kind of Y type tower
CN110094100A (en) * 2019-04-28 2019-08-06 江苏神马电力股份有限公司 A kind of wineglass tower
CN110611280A (en) * 2019-09-19 2019-12-24 成都炬能机械制造有限公司 Power transmission line anti-theft system and method
CN110611280B (en) * 2019-09-19 2021-04-06 成都炬能机械制造有限公司 Power transmission line anti-theft system and method

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