CN204457033U - A kind of corner of 500/220kV mixed pressure four loop transmission line wears tower - Google Patents
A kind of corner of 500/220kV mixed pressure four loop transmission line wears tower Download PDFInfo
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- CN204457033U CN204457033U CN201420675601.8U CN201420675601U CN204457033U CN 204457033 U CN204457033 U CN 204457033U CN 201420675601 U CN201420675601 U CN 201420675601U CN 204457033 U CN204457033 U CN 204457033U
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Abstract
A kind of corner of 500/220kV mixed pressure four loop transmission line wears tower, it comprises tower leg, tower body, 500kV double loop tower head, 220kV double loop tower head and earth wire support, described 500kV double loop tower head is lower arrangement in presenting, be arranged vertically by three layer conductor cross-arms and form, be followed successively by 500kV upper conductor cross-arm, middle wire cross-arm and lower wire cross-arm from top to bottom; Described 220kV double loop tower head presents lower arrangement, is arranged vertically and forms, be followed successively by 220kV upper conductor cross-arm and lower wire cross-arm from top to bottom by two layer conductor cross-arms; The transmission line wire of 220kV is arranged in the two-layer cross-arm in bottom by horizontal mode, and in bottom, the tower body place of two-layer cross-arm is provided with two tower windows simultaneously, and the middle phase conductor in 220kV utilizes described tower window, in the middle of tower body, pass through cabling; It has rational in infrastructure, compact, can utilize in the middle of tower body and pass through cabling, provide and optimize the features such as corridor takes up room.
Description
Technical field
The utility model relates to a kind of corner for 500/220kV mixed pressure four loop transmission line and wear tower, belong to the power transmission tower technical field of overhead transmission line.
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 that is attractive in appearance, environmental protection constantly strengthen.Current Problems existing is, be along with expanding economy on the one hand, 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, because the present common people are to the very big raising of environment and sense of self-protection, make transmission line of electricity become very difficult in policy process, removing and resettlement, saving corridor etc.Compression power transmission line corridor width, improves electric power corridor transmission capacity, and economizing the land resource is present stage one of the emphasis paid close attention to of power grid construction.
The conventional 500/220kV mixed pressure four loop angle tower adopted is that 500kV is arranged in steel tower top, 220kV is arranged in steel tower bottom, 2 times 500kV circuit adopts drum type to be arranged in three layers of cross-arm on top, the two-layer cross-arm of 2 times 220kV line arrangements in bottom, as shown in Figure 1.Under 220kV circuit, cross-arm need hang two phase conductors, and cross-arm length certainly will be very long, effectively cannot compress width of corridor.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of rational in infrastructure, compact, can pass through cabling in the middle of Appropriate application tower body, provides optimization a kind of 500/220kV mixed pressure four loop transmission line corner that corridor takes up room to wear tower.
In order to overcome the above problems, the utility model is achieved by the following technical solution: a kind of corner of 500/220kV mixed pressure four loop transmission line wears tower, it comprises tower leg, tower body, 500kV double loop tower head, 220kV double loop tower head and earth wire support, described 500kV double loop tower head is lower arrangement in presenting, be arranged vertically by three layer conductor cross-arms and form, be followed successively by 500kV upper conductor cross-arm, middle wire cross-arm and lower wire cross-arm from top to bottom; Described 220kV double loop tower head presents lower arrangement, is arranged vertically and forms, be followed successively by 220kV upper conductor cross-arm and lower wire cross-arm from top to bottom by two layer conductor cross-arms;
The wire of 220kV transmission line of electricity is arranged in the two-layer cross-arm in bottom by horizontal mode, and in bottom, the tower body place of two-layer cross-arm is provided with two tower windows simultaneously, and the middle phase conductor in 220kV utilizes described tower window, in the middle of tower body, pass through cabling; Have compressed corridor to greatest extent, in the basically identical situations of factor such as traffic, landform, construction, scissors crossing and body investment, adopt and can reduce path and buckling factor with tower mixed pressure four loop stringing, compression circuit width of corridor, reduce removal amount, alleviate policy intractability, economic and social benefit is obvious;
The limit phase wire jumper insulator string of 220kV transmission line of electricity adopts conventional I type to jump string 7 and arranges, middle phase jumping wire insulator string adopts V-type to jump string 8 and arranges, with the skew of Restricted edge phase wire jumper.
Compared with prior art, the beneficial effects of the utility model are: mixed pressure four loop is worn tower and efficiently solved the problem of 500kV/220kV with pylon line, and with routine with compared with tower mixed pressure four circuit pole tower, not only save tower material, and 220kV wire cross-arm length is shorter, have compressed width of corridor, economic benefit and social benefit considerable; It has rational in infrastructure, compact, can pass through cabling, provide and optimize the features such as corridor takes up room in the middle of Appropriate application tower body.
Accompanying drawing explanation
fig. 1 is the structural representation of existing 500/220kV mixed pressure four loop transmission line angle tower;
Fig. 2 is that the corner of 500/220kV mixed pressure four loop transmission line described in the utility model wears tower structure schematic diagram;
Label in figure is: 1-earth wire support, 2-are cross-arm on 500kV wire, 3-is cross-arm in 500kV wire, 4-is cross-arm under 500kV wire, 5-is cross-arm on 220kV wire, 6-is cross-arm under 220kV wire, 7-is that string jumped by 220kV " I " type, 8-is that string jumped by 220kV " V " type, and 9-tower body, 10-tower leg, 11-are 500kV tower head, 12-is 220kV tower head, 13-is 500kV tower body, 14-is 220kV tower body.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further introduced: shown in Fig. 2, a kind of corner of 500/220kV mixed pressure four loop transmission line wears tower, it comprises tower leg 10, tower body 9,500kV double loop tower head 11,220kV double loop tower head 12 and earth wire support 1, the arrangement in upper, middle and lower of described 500kV double loop tower head 11, be arranged vertically by three layer conductor cross-arms and form, be followed successively by 500kV upper conductor cross-arm 2, middle wire cross-arm 3 and lower wire cross-arm 4 from top to bottom; Described 220kV double loop tower head 12, in being arranged above and below, is arranged vertically by two layer conductor cross-arms and forms, be followed successively by 220kV upper conductor cross-arm 5 and lower wire cross-arm 6 from top to bottom.
The transmission line wire of 220kV is arranged in the two-layer cross-arm in bottom by horizontal mode, and in bottom, the tower body place of two-layer cross-arm is provided with two tower windows simultaneously, and the middle phase conductor in 220kV utilizes described tower window, in the middle of tower body, pass through cabling.
The limit phase wire jumper insulator string of 220kV circuit adopts conventional I type to jump string 7 and arranges, middle phase jumping wire insulator string adopts V-type to jump string 8 and arranges, with the skew of Restricted edge phase wire jumper.
The economy of the mixed pressure four circuit pole tower tower that contrast is conventional and lightning surge performance, the five layer conductor cross-arm arrangement form resultant effects optimums worn tower and adopt of the present utility model.
Phase conductor of wearing in tower 220kV described in the utility model passes through cabling in the middle of tower body, reduces the length of bottom two-layer 220kV wire cross-arm.Compared with the mixed pressure four loop tower of routine, newly-designed Chuan Shen tower lower floor 220kV wire cross-arm length reduces 5.2m, and about 2.5 % saved by tower material.
The limit phase wire jumper insulator string of 220kV circuit described in the utility model adopts conventional I type to jump string layout 7, and middle phase jumping wire insulator string, because limiting by tower window width, is considered to adopt V-type bar string to arrange 8, effectively can be limited the skew of wire jumper.
Newly-designedly wear tower and conventional mixed pressure four loop tower by contrasting, calculating respective power frequency electric field, power frequency magnetic field, radio interference and audible noise interference value can obtain, and every electromagnetic environment index of wearing tower is relatively better.
Embodiment: the one provided in this specific embodiment novel 500/220kV mixed pressure four loop transmission line corner wears tower, comprises earth wire support 1, tower leg 10, tower body 9,500kV tower head 11 and 220kV tower head 12; Described 500kV tower head 11 is made up of cross-arm 4, tower body 13 under cross-arm 3, wire in cross-arm on wire 2, wire; Described 110kV tower head 12 is made up of cross-arm 6, tower body 14 under cross-arm on wire 5, wire.
Mixed pressure four loop is worn tower and is efficiently solved the problem of 500kV/220kV with pylon line, and with routine with compared with the tower of tower mixed pressure four loop, not only save tower material, and 220kV wire cross-arm length is shorter, have compressed width of corridor, embody good economy and the feature of environmental protection.
Finally, it should be noted that above what enumerate is only specific embodiment of the utility model.Obviously, the utility model is not limited to above embodiment, can also have a lot of distortion.All distortion that those of ordinary skill in the art can directly derive or associate from content disclosed in the utility model, all should think protection domain of the present utility model.
Claims (1)
1. the corner of 500/220kV mixed pressure four loop transmission line wears tower, it comprises tower leg (10), tower body (9), 500kV double loop tower head (11), 220kV double loop tower head (12) and earth wire support (1), it is characterized in that described 500kV double loop tower head (11) arranges in upper, middle and lower, be arranged vertically by three layer conductor cross-arms and form, be followed successively by 500kV upper conductor cross-arm (2), middle wire cross-arm (3) and lower wire cross-arm (4) from top to bottom; Described 220kV double loop tower head (12), in being arranged above and below, is arranged vertically by two layer conductor cross-arms and forms, and is followed successively by 220kV upper conductor cross-arm (5) and lower wire cross-arm (6) from top to bottom;
The transmission line wire of 220kV is arranged in the two-layer cross-arm in bottom by horizontal mode, and in bottom, the tower body place of two-layer cross-arm is provided with two tower windows simultaneously, and the middle phase conductor in 220kV utilizes described tower window, in the middle of tower body, pass through cabling;
The limit phase wire jumper insulator string of 220kV circuit adopts conventional I type to jump string (7) and arranges, middle phase jumping wire insulator string adopts V-type to jump string (8) and arranges, with the skew of Restricted edge phase wire jumper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420675601.8U CN204457033U (en) | 2014-11-13 | 2014-11-13 | A kind of corner of 500/220kV mixed pressure four loop transmission line wears tower |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420675601.8U CN204457033U (en) | 2014-11-13 | 2014-11-13 | A kind of corner of 500/220kV mixed pressure four loop transmission line wears tower |
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| CN204457033U true CN204457033U (en) | 2015-07-08 |
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| CN201420675601.8U Active CN204457033U (en) | 2014-11-13 | 2014-11-13 | A kind of corner of 500/220kV mixed pressure four loop transmission line wears tower |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106368495A (en) * | 2016-11-09 | 2017-02-01 | 国网浙江省电力公司绍兴供电公司 | Novel penetrating linear narrow base tower |
| CN106382047A (en) * | 2016-11-09 | 2017-02-08 | 国网浙江省电力公司绍兴供电公司 | Transmission tower insulation truss module |
| 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 |
-
2014
- 2014-11-13 CN CN201420675601.8U patent/CN204457033U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106368495A (en) * | 2016-11-09 | 2017-02-01 | 国网浙江省电力公司绍兴供电公司 | Novel penetrating linear narrow base tower |
| CN106382047A (en) * | 2016-11-09 | 2017-02-08 | 国网浙江省电力公司绍兴供电公司 | Transmission tower insulation truss module |
| CN106368495B (en) * | 2016-11-09 | 2018-09-07 | 国网浙江省电力公司绍兴供电公司 | One kind is novel to wear straight line narrow base 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 |
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Address after: No. 68 GUCUI Road, Hangzhou, Zhejiang Province Patentee after: Energy source in China construction group Zhejiang Province Power Design Institute Co., Ltd Address before: No. 68 GUCUI Road, Hangzhou, Zhejiang Province Patentee before: Zhejiang Electric Power Design Institute |