CN105155907A - Strain tower - Google Patents
Strain tower Download PDFInfo
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- CN105155907A CN105155907A CN201510546782.3A CN201510546782A CN105155907A CN 105155907 A CN105155907 A CN 105155907A CN 201510546782 A CN201510546782 A CN 201510546782A CN 105155907 A CN105155907 A CN 105155907A
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Abstract
The invention discloses a strain tower and belongs to the field of iron towers for transmission lines. The strain tower comprises a tower body, a first conducting wire crossarm, a second conducting wire crossarm, a first ground wire bracket and a second ground wire bracket, wherein the first conducting wire crossarm and the second conducting wire crossarm are horizontally arranged on the two sides of the tower body; and the first ground wire bracket and the second ground wire bracket are arranged at the top end of the tower body in the mode that the first ground wire bracket and the second ground wire bracket mutually form a certain angle and used for enabling a middle-phase conducting wire jumper wire connected with a middle-phase conducting wire to pass through a hollow window formed between the first ground wire bracket and the second ground wire bracket and then bypass the tower body. According to the strain tower provided by the invention, three-phase conducting wires are arranged and designed horizontally, and electrical performance requirements of ground wire ice unloading and jumping in a heavy ice area are and operation safety of transmission lines in the heavy ice area are improved; compared with a common strain tower shaped like the Chinese character 'gan', the strain tower provided by the invention has the advantages that the ground wire crossarms are simplified, the height of a tower head is reduced and the tower weight is reduced; and the middle-phase conducting wire jumper wire is simple in form and easy to realize, and a supporting insulator can completely and effectively bear loads of the middle-phase conducting wire jumper wire.
Description
Technical field
The present invention relates to steel tower field used for transmission line, particularly anchor support.
Background technology
Dry font anchor support is the domestic two kinds of conventional patterns exchanging single loop anchor support with wine glass-shaped anchor support.Dry font anchor support wherein phase conductor is arranged in top, both sides phase horizontal arrangement in bottom, entirety is triangularly arranged, this pyramidal structure is simple, power transmission is clear, non-deformability is strong, busy line corridor is less, construction and installation and maintenance are more for convenience, at home and abroad all use in a large number in work transmission line, have accumulated abundant operation and design experiences; But because its wire is rounded projections arranged, apply this kind of tower at middle heavy icing area transmission line of electricity, there is lead wire and earth wire and wave the problem with ice-shedding.
Therefore, necessaryly a kind of anchor support is provided.
Summary of the invention
In order to solve at least one aspect of the above-mentioned problems in the prior art and defect, the invention provides a kind of anchor support.Described technical scheme is as follows:
An object of the present invention is to provide a kind of anchor support.
According to an aspect of the present invention, the invention provides a kind of anchor support, described anchor support comprises tower body, the first wire cross-arm, the second wire cross-arm, the first earth wire support and the second earth wire support, described first wire cross-arm and the second wire cross-arm are horizontally set on the both sides of described tower body, described first earth wire support and the second earth wire support are arranged on the top of described tower body each other in certain angle
Be arranged through for phase conductor wire jumper in phase conductor in connecting the empty window formed between described first earth wire support and the second earth wire support and walk around described tower body.
Further, described empty window is set to V-type, described tower body is respectively arranged with two tower body hanging points on the both sides of the bearing of trend of middle phase conductor, each described tower body hanging point is used for hanging middle phase conductor, and described middle phase conductor wire jumper is electrically connected the described middle phase conductor hung by described two tower body hanging points.
Particularly, described first wire cross-arm is arranged on the below of described first and second earth wire supports with the second wire cross-arm and is connected with corresponding to each other, be provided with two the first wire cross-arm hanging points in the end away from described tower body of described first wire cross-arm, two described first wire cross-arm hanging points are separately positioned on the both sides of the first wire cross-arm along the direction perpendicular to the extension direction of the first wire cross-arm;
Be provided with two the second wire cross-arm hanging points in the end away from described tower body of described second wire cross-arm, two described second wire cross-arm hanging points are separately positioned on the both sides of described second wire cross-arm along the direction perpendicular to the extension direction of the second wire cross-arm;
First wire cross-arm hanging point, the second wire cross-arm hanging point and described tower body hanging point are arranged in same level.
Particularly, each for hanging limit phase conductor in described first and second wire cross-arm hanging points.
Further, described tower body hanging point hangs described middle phase conductor by least one strain insulator,
Each in described first and second wire cross-arm hanging points hangs described limit phase conductor by least one strain insulator described.
Particularly, the described limit phase conductor being arranged on described anchor support both sides is parallel to each other with the described middle phase conductor be arranged in the middle of described anchor support, and is arranged in same level.
Further, the described limit phase conductor that two described first wire cross-arm hanging points hang is electrically connected to each other by the described first limit phase conductor wire jumper be arranged on below described first wire cross-arm,
The described limit phase conductor that two described second wire cross-arm hanging points hang is electrically connected to each other by the described Second Edge phase conductor wire jumper be arranged on below described second wire cross-arm.
Further, described first and second limit phase conductor wire jumpers are insulated accordingly by least one suspension insulator and connect and be fixed on described first and second wire cross-arms.
Further, described first earth wire support and described second earth wire support two sides respect to one another are respectively arranged with at least one support insulator, at least one support insulator described connects for insulating and fixing described middle phase conductor wire jumper, and the load of described middle phase conductor wire jumper is passed to described first earth wire support and the second earth wire support respectively by least one support insulator described.
The beneficial effect of technical scheme provided by the invention is:
(1) three-phase conducting wire horizontally designs by anchor support provided by the invention, improves the electrical performance demands of heavy icing area lead wire and earth wire ice-shedding, and then improves middle heavy icing area transmission line of electricity security of operation;
(2) anchor support provided by the invention is compared with common dry font anchor support, simplifies ground wire cross-arm, have compressed tower head height, reduce tower weight;
(3) anchor support provided by the invention is compared with common wine cup type anchor support, and anchor support structure provided by the invention is simple, power transmission is clear, non-deformability is strong, and constructability is installed and maintenance;
(4) on middle phase jumping wire around wire jumper, form is succinct, is easy to realize, and support insulator can effectively bear on middle phase conductor completely around wire jumper load.
Accompanying drawing explanation
Fig. 1 is the structural representation of anchor support according to an embodiment of the invention.
Wherein, 100 anchor supports, 10 tower bodies, phase conductor in 11, phase conductor wire jumper in 12,13 tower body hanging points, first side of 14 tower bodies, 21 first wire cross-arms, 211 first wire cross-arm hanging points, the first side of 212 first wire cross-arms, 22 second wire cross-arms, 221 second wire cross-arm hanging points, the first side of 222 second wire cross-arms, 31 first earth wire supports, 32 second earth wire supports, 33 empty windows, 34 support insulators, 40 limit phase conductors, 41 first limit phase conductor wire jumpers, 42 Second Edge phase conductor wire jumpers, 43 suspension insulators, 50 strain insulators.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
See Fig. 1, it illustrates anchor support 100 according to an embodiment of the invention.Anchor support 100 comprises tower body 10, first wire cross-arm 21, second wire cross-arm 22, first earth wire support 31 and the second earth wire support 32.Particularly, the first wire cross-arm 21 and the second wire cross-arm 22 are horizontally set on the both sides of tower body 10, and the first earth wire support 21 and the second earth wire support 22 are arranged on the top of tower body 10 each other in certain angle.Be arranged through for phase conductor wire jumper 12 in phase conductor 11 in connecting the empty window 33 formed between the first earth wire support 31 and the second earth wire support 32 and walk around tower body 10.
This tower three-phase conducting wire horizontal arrangement, middle phase conductor 11 is hung on tower body 10, and two limit phase conductors 40 are hung on both sides wire cross-arm respectively.And this tower eliminates wire cross-arm top tower body, earth wire support is protruding by the tower body connecting wire cross-arm, the V-shaped design of left and right earth wire support.Middle phase conductor wire jumper 12 utilizes on the empty window 33 between V-type earth wire support and walks around tower body.In an example of the present invention, empty window 33 is set to V-type, and the first earth wire support 31 and the second earth wire support 32 form V-structure each other.In another example of the present invention, the angle that the first earth wire support 31 and the second earth wire support 32 are formed each other only demand fulfillment ground wire (not shown) to the shielding angle of wire (namely in phase conductor and limit phase conductor).
At present, the wine glass-shaped anchor support used at middle heavy icing area on it K type Nodes of lower bent lever be very easy to stress deformation, and pass through the design of V-structure of the present invention, make when middle heavy icing area uses anchor support of the present invention, can carry out effective power transmission by V-structure, and power transmission is clear, non-deformability is extremely strong.And with regard to the anchor support of 220kV electric pressure, such design is relative to existing plain edition anchor support, its tower head (namely tower head comprises the first earth wire support, the second earth wire support, the first wire cross-arm and the second wire cross-arm) height reduction 3.0m ~ 4.0m, basic role power reduces by 5% ~ 10%, under the same terms, tower weight reduces by 4% ~ 5%, and basic comprehensive expense reduces by 4%.And tower of the present invention meets the electrical performance demands of middle heavy icing area lead wire and earth wire ice-shedding, the remarkable reduction compared with common dry font anchor support of tower head height, structure is simple, non-deformability is strong, heavy icing area transmission line of electricity security of operation in effectively improving, centering heavy icing area transmission line of alternation current has adaptability.
Continue see Fig. 1, the first earth wire support 31 and the second earth wire support 32 two sides respect to one another are respectively arranged with at least one support insulator 34.Particularly, as shown in Figure 1, support insulator 34 is set to four, and wherein two support insulators 34 are arranged on the medial surface of the first earth wire support 31, and two other support insulator is arranged on the medial surface of the second earth wire support 32 relative with the medial surface of the first earth wire support 31.By such design, support insulator 34 can not only be insulated and be connected and fixed middle phase conductor wire jumper 12, and the load of middle phase conductor wire jumper 12 is also passed to the first earth wire support 31 and the second earth wire support 32 respectively by support insulator 34, and can bear from middle phase conductor around the pressure effect of wire jumper (namely in phase conductor wire jumper 12), but this pressure is less, support insulator 34 can bear completely.It will be appreciated by those skilled in the art that, this example is only a kind of illustrated examples, the number of support insulator 34 can be arranged as required accordingly, such as be set to 1,3,5 or more, as long as the load of phase conductor wire jumper 12 during being fixedly connected with and transmitting of Middle Phase wire wire jumper 12 can be realized.
Tower body 10 is respectively arranged with the tower body hanging point 13 for phase conductor 11 in hanging on the both sides of the bearing of trend of middle phase conductor 11.That is, on the first side 14 of tower body 10, be provided with tower body hanging point 13 respectively and tower body hanging point 13 is set with on the second side relative with the first side of tower body 10.Middle phase conductor wire jumper 12 is electrically connected the middle phase conductor 11 be hung on tower body hanging point 13.
First wire cross-arm 21 is arranged on the below of the first earth wire support 31, second wire cross-arm 22 is arranged on the below of the second earth wire support 31, first wire cross-arm 21 is corresponding with the first earth wire support 31 to be connected, and the second wire cross-arm 22 is corresponding with the second earth wire support 32 connects.Two are provided with for hanging the first wire cross-arm hanging point 211 of limit phase conductor 40 in the end away from tower body 10 of the first wire cross-arm 21.Particularly, these two the first wire cross-arm hanging points 211 are separately positioned on the both sides of the first wire cross-arm along the direction in the extension direction perpendicular to the first wire cross-arm, namely as shown in Figure 1, on the first side 212 being separately positioned on the first wire cross-arm 21 and be arranged on the second side of the first wire cross-arm 21 be oppositely arranged with this first side 212, and these two the first wire cross-arm hanging points 211 are all linked with limit phase conductor 40.
Continuing see Fig. 1, being provided with two in the end away from tower body 10 of the second wire cross-arm 22 for hanging the second wire cross-arm hanging point 221 of limit phase conductor.Particularly, these two the second wire cross-arm hanging points 221 are separately positioned on the both sides of the second wire cross-arm 22 along the direction in the extension direction perpendicular to the second wire cross-arm 22.Particularly, on the first side 222 that two the second wire cross-arm hanging points 221 are separately positioned on the second wire cross-arm 22 and on the second side of the second wire cross-arm 22 be oppositely arranged with this first side 222, and these two the second wire cross-arm hanging points 221 are all linked with limit phase conductor 40.
In an example of the present invention, the tower body hanging point 13 of both sides all hangs middle phase conductor 11 by least one strain insulator 50, and each in the first wire cross-arm hanging point 211 and the second wire cross-arm hanging point 221 hangs limit phase conductor 40 by least one strain insulator 50.Particularly, as shown in Figure 1, tower body hanging point 13, the first wire cross-arm hanging point 211 and the second wire cross-arm hanging point 221 of homonymy are provided with a strain insulator 50, middle phase conductor 11 is insulated with tower body 10 by strain insulator 50 and is connected, a limit phase conductor in two limit phase conductors 40 to be insulated with the first wire cross-arm 21 by the strain insulator 50 that is connected with the first wire cross-arm hanging point 211 and is connected, and another root limit phase conductor to be insulated with the second wire cross-arm 22 by the strain insulator 50 that is connected with the second wire cross-arm hanging point 221 and is connected.Those skilled in the art can understand, the number of strain insulator 50 can be arranged accordingly according to the needs of those skilled in the art, such as, can be set to 1,3,5 or more.This example is only a kind of illustrated examples, not should be understood to one restriction of the present invention.
As shown in Figure 1, first wire cross-arm hanging point 211, second wire cross-arm hanging point 221 and tower body hanging point 13 are arranged in same level, and are positioned at the first wire cross-arm hanging point 211 of tower body 10 the same side and the second wire cross-arm hanging point 221 is symmetrical arranged relative to tower body 10 hanging point.Meanwhile, the limit phase conductor 40 being arranged on anchor support 100 both sides is parallel to each other with the middle phase conductor 11 be arranged in the middle of anchor support 100, and is arranged in same level.By the setting of such same level, when making this tower be applied to each electric pressure transmission line of alternation current, its wire is horizontally, effectively reduces that middle heavy icing area lead wire and earth wire is waved, the problem of ice-shedding, improves middle heavy icing area transmission line of electricity security of operation.
As shown in Figure 1, dual-side phase conductor 40 is hung on corresponding wire cross-arm hanging point, and dual-side phase conductor wire jumper adopts lower jumper to design.In an example of the present invention, the limit phase conductor 40 that two the first wire cross-arm hanging points 211 hang is electrically connected to each other by the first limit phase conductor wire jumper 41 be arranged on below the first wire cross-arm 21; And the limit phase conductor 40 that two the second wire cross-arm hanging points 221 hang is electrically connected to each other by the Second Edge phase conductor wire jumper 42 be arranged on below the second wire cross-arm 22.
In another example of the present invention, the first limit phase conductor wire jumper 41 carries out insulation by suspension insulator 43 and the first wire cross-arm 21 and is connected and is fixed on the first wire cross-arm 21; Second Edge phase conductor wire jumper 42 carries out insulation by suspension insulator 43 and the second wire cross-arm 22 and is connected and is fixed on the second wire cross-arm 22.Those skilled in the art can understand, suspension insulator 43 can be set to 1,3 or more as required, and those skilled in the art can correspondingly select as required.This example is only a kind of illustrated examples, and those skilled in the art not should be understood to one restriction of the present invention.
In also another example of the present invention; the size of tower head (i.e. the first earth wire support 31, second earth wire support 32, first wire cross-arm 21 and the second wire cross-arm 22) is round according to wire electric clearance, the horizontal distance between centers of tracks of wire, ground wire lightning protection angle are determined, and demand fulfillment ice-shedding and icing wave requirement.When carrying out the design of tower of the present invention, should line bracket size, wire cross-arm size, support insulator installation site and length definitely successively, and design with this.And according to the anchor support that the present invention designs, it is being carried out to computational analysis, such as the analysis constructing connection, supporting capacity, processing and manufacturing is carried out to it, all can meet existing Regulations.
The beneficial effect of technical scheme provided by the invention is:
(1) three-phase conducting wire horizontally designs by anchor support provided by the invention, improves the electrical performance demands of heavy icing area lead wire and earth wire ice-shedding, and then improves middle heavy icing area transmission line of electricity security of operation;
(2) anchor support provided by the invention is compared with common dry font anchor support, simplifies ground wire cross-arm, have compressed tower head height, reduce tower weight;
(3) anchor support provided by the invention is compared with common wine cup type anchor support, and anchor support structure provided by the invention is simple, power transmission is clear, non-deformability is strong, and constructability is installed and maintenance;
(4) on middle phase jumping wire around wire jumper, form is succinct, is easy to realize, and support insulator can effectively bear on middle phase conductor completely around wire jumper load.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. an anchor support, is characterized in that,
Described anchor support comprises tower body, the first wire cross-arm, the second wire cross-arm, the first earth wire support and the second earth wire support, described first wire cross-arm and the second wire cross-arm are horizontally set on the both sides of described tower body, described first earth wire support and the second earth wire support are arranged on the top of described tower body each other in certain angle
Be arranged through for phase conductor wire jumper in phase conductor in connecting the empty window formed between described first earth wire support and the second earth wire support and walk around described tower body.
2. anchor support according to claim 1, is characterized in that,
Described empty window is set to V-type, described tower body is respectively arranged with two tower body hanging points on the both sides of the bearing of trend of middle phase conductor, each described tower body hanging point is used for hanging middle phase conductor, and described middle phase conductor wire jumper is electrically connected the described middle phase conductor hung by described two tower body hanging points.
3. anchor support according to claim 2, is characterized in that,
Described first wire cross-arm is arranged on the below of described first and second earth wire supports with the second wire cross-arm and is connected with corresponding to each other, be provided with two the first wire cross-arm hanging points in the end away from described tower body of described first wire cross-arm, two described first wire cross-arm hanging points are separately positioned on the both sides of the first wire cross-arm along the direction perpendicular to the extension direction of the first wire cross-arm;
Be provided with two the second wire cross-arm hanging points in the end away from described tower body of described second wire cross-arm, two described second wire cross-arm hanging points are separately positioned on the both sides of described second wire cross-arm along the direction perpendicular to the extension direction of the second wire cross-arm;
First wire cross-arm hanging point, the second wire cross-arm hanging point and described tower body hanging point are arranged in same level.
4. anchor support according to claim 3, is characterized in that,
Each for hanging limit phase conductor in described first and second wire cross-arm hanging points.
5. anchor support according to claim 4, is characterized in that,
Described tower body hanging point hangs described middle phase conductor by least one strain insulator,
Each in described first and second wire cross-arm hanging points hangs described limit phase conductor by least one strain insulator described.
6. anchor support according to claim 5, is characterized in that,
The described limit phase conductor being arranged on described anchor support both sides is parallel to each other with the described middle phase conductor be arranged in the middle of described anchor support, and is arranged in same level.
7. anchor support according to claim 6, is characterized in that,
The described limit phase conductor that two described first wire cross-arm hanging points hang is electrically connected to each other by the described first limit phase conductor wire jumper be arranged on below described first wire cross-arm,
The described limit phase conductor that two described second wire cross-arm hanging points hang is electrically connected to each other by the described Second Edge phase conductor wire jumper be arranged on below described second wire cross-arm.
8. anchor support according to claim 7, is characterized in that,
Described first and second limit phase conductor wire jumpers are insulated accordingly by least one suspension insulator and connect and be fixed on described first and second wire cross-arms.
9. the anchor support according to any one of claim 1-8, is characterized in that,
Described first earth wire support and described second earth wire support two sides respect to one another are respectively arranged with at least one support insulator, at least one support insulator described connects for insulating and fixing described middle phase conductor wire jumper, and the load of described middle phase conductor wire jumper is passed to described first earth wire support and the second earth wire support respectively by least one support insulator described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510546782.3A CN105155907A (en) | 2015-08-31 | 2015-08-31 | Strain tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510546782.3A CN105155907A (en) | 2015-08-31 | 2015-08-31 | Strain tower |
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| CN105155907A true CN105155907A (en) | 2015-12-16 |
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| CN201510546782.3A Pending CN105155907A (en) | 2015-08-31 | 2015-08-31 | Strain tower |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105888353A (en) * | 2016-04-13 | 2016-08-24 | 国核电力规划设计研究院 | Single-phase bracing wire tension support and application thereof |
| CN107134749A (en) * | 2017-05-23 | 2017-09-05 | 国核电力规划设计研究院有限公司 | A kind of transposition tower and its interchanging method |
| CN111734196A (en) * | 2020-06-30 | 2020-10-02 | 菏泽成科企业管理有限公司 | Power transmission tower |
| CN113137112A (en) * | 2021-04-14 | 2021-07-20 | 国网经济技术研究院有限公司 | Transmission tower based on equipment sharing |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105888353A (en) * | 2016-04-13 | 2016-08-24 | 国核电力规划设计研究院 | Single-phase bracing wire tension support and application thereof |
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| CN107134749A (en) * | 2017-05-23 | 2017-09-05 | 国核电力规划设计研究院有限公司 | A kind of transposition tower and its interchanging method |
| CN107134749B (en) * | 2017-05-23 | 2019-01-08 | 国核电力规划设计研究院有限公司 | A kind of transposition tower and its interchanging method |
| CN111734196A (en) * | 2020-06-30 | 2020-10-02 | 菏泽成科企业管理有限公司 | Power transmission tower |
| CN113137112A (en) * | 2021-04-14 | 2021-07-20 | 国网经济技术研究院有限公司 | Transmission tower based on equipment sharing |
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Application publication date: 20151216 |