CN103603536B - Multiloop cross is handed over across steel pipe pole - Google Patents
Multiloop cross is handed over across steel pipe pole Download PDFInfo
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- CN103603536B CN103603536B CN201310509627.5A CN201310509627A CN103603536B CN 103603536 B CN103603536 B CN 103603536B CN 201310509627 A CN201310509627 A CN 201310509627A CN 103603536 B CN103603536 B CN 103603536B
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Abstract
What the present invention relates to is that a kind of multiloop cross is handed over across steel pipe pole, comprise public shaft, lower floor's loop cross-arm, loop, upper strata cross-arm and ground wire cross-arm, lower floor's loop cross-arm and loop, upper strata cross-arm and ground wire cross-arm are cross type, in public shaft both sides, one loop line road is respectively installed, public shaft is vertical without becoming slope by four, formed by Flange joint steel pipe, by the rigid frame steel tube rod structure that rigidity tabula is connected, its root is opened little compared with conventional steel tower, reduce line corridor width, thus decrease removal and vegetation deterioration, be conducive to resources conservation and environmental protection.The present invention by two circuits pass through tower and crossover tower is incorporated on combined steel pipe bar, save construction investment, reduce power off time, its pass through mode simple, easily implement in city, reduce line channel and steel tower occupation of land, monnolithic case is attractive in appearance, meets the appearance requirement of city transmission line of electricity.
Description
Technical field
The present invention relates to the scissors crossing between a kind of transmission line of electricity, pass through tower, what be specifically related to is that a kind of multiloop cross is handed over across steel pipe pole.
Background technology
Along with the high speed development of China's city transmission line construction, the requirement of developed area to line corridor is more and more harsher, place is more and more less, line corridor is more and more narrower and small, along with the application of multiloop combined steel pipe bar, the problem that multiple loop transmission line is applied in city is eased, but along with the continuous increase of line density, newly, scissors crossing between old ultra-high-tension power transmission line, the frequency of passing through and degree of difficulty also constantly increase, utilize planning rolling to repair volume by local government land to affect and circuit Building Settlement around Foundation, tower position is taken up an area passing through of needing voltage circuit very little and at different levels to intersect and is a little difficult to accurately reserve, usually, need adopt the very high crossover tower of newly-built two bases or remove former circuit two base steel tower, newly-built 2 base crossover towers could meet crosses over required distance, but the method can cause backbone network power off time long, retrofit work amount is larger, cost is high, develop a kind of shaft tower pattern of city transmission line of electricity scissors crossing that facilitates very necessary.
Summary of the invention
In order to solve, city, economically developed city is new, aged electric power line is handed over across faced friendship mutually across difficulty, transformation power off time length, large, the permanent problem that occupation of land amount is many, construction costs is high of workload, the object of the invention provides a kind of multiloop cross to hand over across steel pipe pole, easy to use and flexible, be convenient to line adjustment path, reduce line channel and steel tower occupation of land.
For achieving the above object, technical scheme of the present invention is as follows:
Multiloop cross is handed over across steel pipe pole, comprise public shaft, it is characterized in that, described public shaft to be respectively arranged with from the top down on ground wire cross-arm, loop, upper strata in cross-arm, loop, upper strata under cross-arm, loop, upper strata on cross-arm, lower floor loop in cross-arm, lower floor loop cross-arm under cross-arm and lower floor loop; On described ground wire cross-arm, loop, upper strata, in cross-arm, loop, upper strata, cross-arm parallels setting with cross-arm under loop, upper strata, on described lower floor loop, in cross-arm, lower floor loop, cross-arm parallels setting with cross-arm under lower floor loop, and described upper strata loop cross-arm and lower floor's loop cross-arm are cross type; Described public shaft comprises tabula and multiple main steel pole, is connected described in two between main steel pole by tabula, forms rigid frame steel tube rod structure, its root is opened little compared with conventional steel tower, reduce line corridor width, shaft tower good looking appearance, meet the appearance requirement of city transmission line of electricity.
Hand over across steel pipe pole according to above-mentioned multiloop cross, wherein, described main steel pole is provided with four, and four main steel poles are square by Flange joint, and what described tabula adopted is h section steel.
Hand over across steel pipe pole according to above-mentioned multiloop cross, wherein, respectively install a loop line road in described public shaft both sides, the loop line road of every side is inverted triangle arrangement or vertical arrangement, i.e. the alternate employing of its wire two layers of cross-arm inverted triangle arrangement or three layers of cross-arm.
Hand over across steel pipe pole according to above-mentioned multiloop cross, wherein, described lower floor loop under cross-arm and lower floor loop, cross-arm is all provided with jumper string in cross-arm, lower floor loop, and on described lower floor loop, in cross-arm, lower floor loop, under cross-arm and lower floor loop, the permission angle range of cross-arm both sides circuit is-45 ~ 45 degree.
Hand over across steel pipe pole according to above-mentioned multiloop cross, wherein, described circuit comprises loop, upper strata and lower floor loop, loop, described upper strata to be arranged in cross-arm on loop, upper strata, loop, upper strata under cross-arm and loop, upper strata on cross-arm by suspension string, lower floor loop to be arranged in cross-arm on lower floor loop, lower floor loop under cross-arm and lower floor loop on cross-arm by strain insulator string, described ground wire cross-arm is equipped with the ground wire strain insulator-string installing lower floor's loop ground wire, the ground wire in described lower floor loop is arranged on ground wire cross-arm by ground wire strain insulator-string.
What on loop, described upper strata, in cross-arm, loop, upper strata, under cross-arm and loop, upper strata, cross-arm all adopted is sharp cross-arm, ground wire cross-arm is also provided with the ground wire suspension string installing ground wire, described ground wire suspension string adopts duplex suspension string, and the ground wire in loop, described upper strata is arranged on ground wire cross-arm by ground wire suspension string.
As preferably, loop, above-mentioned upper strata is high tension loop, and lower floor loop is low tension loop or electric pressure same with upper loop, and loop, upper strata is linear pattern loop, and lower floor loop is strain resistant loop.
Cross of the present invention is handed over across steel pipe pole compared with prior art, and its advantage is:
(1) this shaft tower type is simple for structure, profile is graceful, permeability good, root is opened little, significantly reduces tower position floor space, is applicable to city work transmission line.
(2) this shaft tower type is applicable to 500kV, 220kV, 110kV multiple loop transmission line engineering, by two circuits pass through tower and crossover tower is incorporated on a base combined steel pipe bar, be mainly used in the scissors crossing of many circuits in city, save construction investment, reduce power off time
(3) cross is handed over and is adopted linear pattern loop across loop, steel pipe pole upper strata, lower floor loop adopts strain resistant loop, the angle range of cross-arm both sides circuit is-45 ~ 45 degree, namely both sides circuit allows angle range large, easy to use and flexible, be convenient to line adjustment path, the needs at most scissors crossing angle can be met.
(4) when boring more built circuit, because the spacing of boring more tower 2 ground wires is larger, and brill more has certain angle in high voltage grade loop, need higher crossover tower during elevation reconstruction, thus cause adjacent straight transmission tower need increase not because of angle of oscillation or make anchor support into.Cross is handed over across tower upper and lower layer loop on same Ji Ta, and characteristics of compact layout, effectively can reduce loop, upper strata tangent tower height, thus avoids or reduce the improvement project amount of adjacent straight transmission tower;
(5) multiloop cross is handed over and is pressed power circuit across tower high voltage grade wire and low voltage grade ground wire and hand over and control across minimum perpendicular distance, and consider the discrepancy in elevation, impact that circuit corner is adjusted the distance, much larger than the live-working safety distance of multiloop tower, therefore from the angle run, relatively common multiloop tower, multiloop cross is handed over and is more conducive to charging operation maintenance across tower;
(6) compare common leap and bore Vietnamese side's formula, hand over due to multiloop cross and have compressed low pressure brill more loop tower head size across tower, bore more circuit positions cross to hand over across tower place simultaneously, it is less that return wire sag is crossed on upper strata, therefore multiloop cross is handed over across the steel tower height of tower much smaller than common crossover tower, less to the reduction of the Kv value of adjacent straight transmission tower during elevation reconstruction, thus reduce the improvement project amount of adjacent straight transmission tower.
Accompanying drawing explanation
Fig. 1 is that multiloop cross of the present invention is handed over across steel pipe pole front schematic view;
Fig. 2 is that multiloop cross of the present invention is handed over across steel pipe pole side schematic view;
Fig. 3 is that multiloop cross of the present invention is handed over across steel pipe pole schematic top plan view.
Detailed description of the invention
The technological means realized for making the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with detailed description of the invention, setting forth the present invention further.
See Fig. 1, Fig. 2 and Fig. 3, the present invention is to provide different circuit pass through tower and crossover tower is integrated into same Ji Ta, namely multiloop cross is handed over across steel pipe pole, comprise public shaft 100, public shaft 100 is provided with ground wire cross-arm 110, loop, upper strata cross-arm and lower floor's loop cross-arm from bottom to up successively.Lower floor's loop cross-arm to comprise in cross-arm 150 on lower floor loop, lower floor loop cross-arm 170 under cross-arm 160 and lower floor loop, loop, upper strata cross-arm to comprise in cross-arm 120 on loop, upper strata, loop, upper strata cross-arm 140 under cross-arm 130 and loop, upper strata, on loop, upper strata in cross-arm 120, loop, upper strata under cross-arm 130, loop, upper strata on cross-arm 140, lower floor loop in cross-arm 150, lower floor loop under cross-arm 160 and lower floor loop cross-arm 170 be arranged on from top to down successively on public shaft 100.On described ground wire cross-arm 110, loop, upper strata, in cross-arm 120, loop, upper strata, cross-arm 130 parallels setting with cross-arm 140 under loop, upper strata, on described layer loop, in cross-arm 150, lower floor loop, cross-arm 160 parallels setting with cross-arm 170 under lower floor loop, and on described lower floor loop, cross-arm 150 and cross-arm under loop, upper strata 140 are in cross type.
In the present embodiment, public shaft 100 comprises tabula 102 and four main steel poles 101, be connected by tabula 102 between main steel pole 101 described in two, namely it is by four vertically without becoming slope, consisting of flange 103 joint steel pipe, and by the rigid frame steel tube rod structure that rigidity tabula 102 is connected, its root is opened little compared with conventional steel tower, the friendship of this cross is opened across steel pipe pole-footing and is 3m to the maximum, reduce line corridor width, shaft tower good looking appearance, meet the appearance requirement of city transmission line of electricity.Main steel pole 101 is provided with four, and four main steel poles 101 are connected in square by flange 103, and the main steel pipe 101 of full tower and cross-arm all adopt steel pipe, and tabula 102 adopts h section steel.Steel material can select Q345, Q420, Q460, the blanking of each rod member, punching, zinc-plated is carried out according to Tower processing figure, part link adopts in Tower processing factory and is welded to connect, carry out after component completion of processing is transported to scene installing, stringing, rod member connects can adopt 6.8 grades, 8.8 grade bolts, and high-strength bolt tightens by certain pretightning force.
Respectively install a loop line road in the both sides of public shaft 100, the loop line road of every side is inverted triangle arrangement or vertical arrangement, i.e. the alternate employing of its wire two layers of cross-arm inverted triangle arrangement or three layers of cross-arm.Loop line road comprises loop, upper strata and lower floor loop, and loop, upper strata is arranged on the cross-arm of loop, upper strata, and lower floor loop is arranged on lower floor's loop cross-arm.The lower floor's cross-arm side of employing, loop cross-arm, it is equipped with and installs strain insulator string 108, ground wire cross-arm 110 is provided with ground wire strain insulator-string, and the ground wire in lower floor loop is arranged on ground wire cross-arm 110 by ground wire strain insulator-string.Each phase conductor is arranged on lower floor's loop cross-arm by corresponding strain insulator string 108, the two ends of lower floor's loop cross-arm are all provided with jumper string 104, wire wire jumper all adopts single, double jumping series winding to connect, loop, upper strata adopts linear pattern loop, lower floor loop adopts strain resistant loop, the corner a scope of cross-arm both sides, lower floor loop circuit is-45 ~ 45 degree, can meet the needs of most scissors crossing angle.
In the present embodiment, loop, upper strata ground wire hanging point adopt suspended pattern, conducting wire hanging point adopts independent double hanging point suspended pattern, with satisfied safety hand over across needs; Loop, upper strata cross-arm adopts sharp cross-arm, loop, upper strata is arranged on the cross-arm of loop, upper strata by suspension string 105, lead, ground wire connection tower formula is linear pattern, ground wire cross-arm 110 is provided with the ground wire suspension string installing upper strata ground wire, ground wire suspension string adopts duplex suspension string, and the ground wire 106 in loop, upper strata is arranged on ground wire cross-arm 110 by ground wire suspension string.
Multiloop cross of the present invention hand over across steel pipe pole purposes and install as follows:
In the present embodiment, what loop, upper strata can adopt is high tension loop, and what lower floor loop can adopt is low tension loop; Levels loop also can adopt the loop with pressure grade.More on-the-spotly to restrict by factors such as old line condition, surrounding environment owing to boring, have multiple brill Vietnamese side case, cross friendship across steel pipe pole in city following situation can use on a selective basis or preferentially adopt.
(1), when 110kV, 220kV common-tower double-return road is bored and got over 220kV, 500kV circuit, 1 ~ 2 base generally can be adopted to bore more tower and to implement to bore more, owing to not transforming old circuit, power off time can be reduced, reduce construction costs.But when bore more electrical distance can not meet the demands, old circuit will be transformed time, need carry out routine and bore Vietnamese side's case and cross friendship gets over project plan comparison across combined steel pipe bar drill, overall merit in cost, occupation of land, ambient influnence etc., uses on a selective basis.
(2) 110kV, 220kV bore more 220kV, 500kV circuit with Ta Hui tetra-tunnel, generally all need to transform old circuit, cross friendship is tightly beaten owing to arranging across steel pipe pole, effectively can be reduced loop, upper strata tangent tower height, thus avoid or reduce the improvement project amount of adjacent straight transmission tower, there is obvious advantage, when tower position is restricted, cross should be preferentially adopted to hand over across steel pipe pole.
(3) general shorter at old circuit tower height, after friendship is across the newly-built two base crossover towers in place, cause adjacent straight transmission tower because of angle of oscillation need increase not or transform anchor support as time, when tower position is restricted, should preferentially adopt cross to hand over across steel pipe pole.
(4) newly-built 220kV, 500kV circuit, need to bore for 110kV, 220kV circuit is reserved more passage time, when boring offside putting by the conditionality such as surrounding environment and occupation of land, can preferentially adopt cross to hand over across steel pipe pole.
The present invention by different circuit pass through tower and crossover tower is integrated into same Ji Ta, the loop that top is arranged, for linear pattern, lower disposed is loop comparatively, is strain resistant, passes through mode what need transform that 2 base crossover towers or newly-built 2 bases pass through tower, be reduced to newly-built 1 base mixed pressure multiloop cross to hand over across steel pipe pole, and public shaft is root drives very little combined steel pipe bar, save construction investment, reduce power off time; And it passes through mode and simply, easily implements, reduce line channel and steel tower occupation of land, particularly pass through the transmission line of electricity along downtown roads trend, utilize this tower more easily to implement, solve that city, economically developed city is new, aged electric power line to be handed over across faced friendship across difficulty mutually, transformation power off time is long, workload is large, the permanent problem that occupation of land amount is many, construction costs is high.
More than show and describe general principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and manual just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (4)
1. multiloop cross is handed over across steel pipe pole, comprise public shaft, it is characterized in that, described public shaft to be respectively arranged with from the top down on ground wire cross-arm, loop, upper strata in cross-arm, loop, upper strata under cross-arm, loop, upper strata on cross-arm, lower floor loop in cross-arm, lower floor loop cross-arm under cross-arm and lower floor loop; On described ground wire cross-arm, loop, upper strata, in cross-arm, loop, upper strata, cross-arm parallels setting with cross-arm under loop, upper strata, on described layer loop, in cross-arm, lower floor loop, cross-arm parallels setting with cross-arm under lower floor loop, and on described lower floor loop, under cross-arm and loop, upper strata, cross-arm is cross type; Described public shaft comprises tabula and multiple main steel pole, is connected described in two between main steel pole by tabula, forms rigid frame steel tube rod structure;
Described main steel pole is provided with four, and four main steel poles are square by Flange joint, and what described tabula adopted is h section steel;
Respectively install a loop line road in described public shaft both sides, the loop line road of every side is inverted triangle arrangement or vertical arrangement;
Described lower floor loop under cross-arm and lower floor loop, cross-arm is all provided with jumper string in cross-arm, lower floor loop, and on described lower floor loop, in cross-arm, lower floor loop, under cross-arm and lower floor loop, the permission angle range of cross-arm both sides circuit is-45 ~ 45 degree;
Described loop line road comprises loop, upper strata and lower floor loop, loop, described upper strata to be arranged in cross-arm on loop, upper strata, loop, upper strata under cross-arm and loop, upper strata on cross-arm by suspension string, lower floor loop to be arranged in cross-arm on lower floor loop, lower floor loop under cross-arm and lower floor loop on cross-arm by strain insulator string, described ground wire cross-arm is provided with the ground wire strain insulator-string installing lower floor's loop ground wire, and the ground wire in described lower floor loop is arranged on ground wire cross-arm by ground wire strain insulator-string;
What on loop, described upper strata, in cross-arm, loop, upper strata, under cross-arm and loop, upper strata, cross-arm all adopted is sharp cross-arm, described ground wire cross-arm is also provided with the ground wire suspension string installing ground wire, described ground wire suspension string adopts duplex suspension string, and the ground wire in loop, described upper strata is arranged on ground wire cross-arm by ground wire suspension string.
2. multiloop cross according to claim 1 is handed over across steel pipe pole, and it is characterized in that, loop, above-mentioned upper strata is high tension loop, and lower floor loop is low tension loop.
3. multiloop cross according to claim 1 is handed over across steel pipe pole, and it is characterized in that, loop, described upper strata and lower floor loop are the loop of same electric pressure.
4. multiloop cross according to claim 1 is handed over across steel pipe pole, and it is characterized in that, loop, described upper strata is linear pattern loop, and lower floor loop is strain resistant loop.
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| CN105155903B (en) * | 2015-09-07 | 2017-08-11 | 安徽华电工程咨询设计有限公司 | A kind of double loop, which becomes, exhales high shaft tower |
| CN105155902B (en) * | 2015-09-07 | 2017-11-24 | 安徽华电工程咨询设计有限公司 | A kind of compact double circuit, which becomes, exhales high shaft tower |
| CN105735731B (en) * | 2016-04-22 | 2018-11-02 | 国网山东省电力公司青岛供电公司 | A kind of double T connection steel pipe poles in double loop |
| CN107916821A (en) * | 2017-12-23 | 2018-04-17 | 中国电力工程顾问集团西北电力设计院有限公司 | A kind of four column steel pipe pole terminal tower of high altitude localities 330kV double loops |
| CN109469394B (en) * | 2018-10-19 | 2021-02-23 | 国网河南省电力公司濮阳供电公司 | Penetrating tower suitable for 220 KV line |
| CN110924730A (en) * | 2019-12-09 | 2020-03-27 | 广州增立钢管结构股份有限公司 | General tower structure |
| CN111119553A (en) * | 2019-12-28 | 2020-05-08 | 国网安徽省电力有限公司经济技术研究院 | Double-loop drilling and crossing angle steel tower |
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| CN202416965U (en) * | 2011-12-27 | 2012-09-05 | 江苏省电力设计院 | Mixed voltage multiloop cross-shaped crossover tower |
| CN202718446U (en) * | 2012-05-25 | 2013-02-06 | 江苏省电力设计院 | Novel combined steel pipe pole |
| CN203603572U (en) * | 2013-10-25 | 2014-05-21 | 国家电网公司 | Multi-loop cross striding steel pipe pole |
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| RU2256049C2 (en) * | 2002-12-11 | 2005-07-10 | Новосибирский государственный архитектурно-строительный университет | Power transmission pile and assemblage method thereof |
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|---|---|---|---|---|
| CN202416965U (en) * | 2011-12-27 | 2012-09-05 | 江苏省电力设计院 | Mixed voltage multiloop cross-shaped crossover tower |
| CN202718446U (en) * | 2012-05-25 | 2013-02-06 | 江苏省电力设计院 | Novel combined steel pipe pole |
| CN203603572U (en) * | 2013-10-25 | 2014-05-21 | 国家电网公司 | Multi-loop cross striding steel pipe pole |
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Address after: 100761 West Chang'an Avenue, Beijing, No. 86, No. Applicant after: State Grid Corporation of China Applicant after: Nanjing Power Supply Co., Jiangsu Prov. Power Co. Applicant after: Jiangsu Electric Power Company Applicant after: Chinese energy construction group Jiangsu Prov. Power Design Inst Co., Ltd Address before: 100761 West Chang'an Avenue, Beijing, No. 86, No. Applicant before: State Grid Corporation of China Applicant before: Nanjing Power Supply Co., Jiangsu Prov. Power Co. Applicant before: Jiangsu Electric Power Company Applicant before: Jiangsu Electric Power Designing Institute |
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Free format text: CORRECT: APPLICANT; FROM: NANJING POWER SUPPLY CO., JIANGSU PROV. POWER CO. JIANGSU ELECTRIC POWER COMPANY JIANGSU ELECTRIC POWER DESIGNING INST. TO: NANJING POWER SUPPLY CO., JIANGSU PROV. POWER CO. JIANGSU ELECTRIC POWER COMPANY CHINA ENERGY ENGINEERING GROUP JIANGSU ELECTRIC POWER DESIGN INSTITUTE CO., LTD. |
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