CN102561785A - Four-circuit tower for straight power transmission lines - Google Patents
Four-circuit tower for straight power transmission lines Download PDFInfo
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- CN102561785A CN102561785A CN2012100210301A CN201210021030A CN102561785A CN 102561785 A CN102561785 A CN 102561785A CN 2012100210301 A CN2012100210301 A CN 2012100210301A CN 201210021030 A CN201210021030 A CN 201210021030A CN 102561785 A CN102561785 A CN 102561785A
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Abstract
A four-circuit tower for straight power transmission lines mainly comprises a tower leg, a tower body, a tower head and conductor insulator strings fixedly connected to the tower head, wherein the tower head comprises conductor cross arms, ground wire supports and an upper tower body connected with the tower body, the conductor cross arms include upper cross arms, middle cross arms and lower cross arms, the conductor cross arms include three layers symmetrically disposed on two sides of the upper tower body and are fixedly and respectively connected with the upper tower body, the conductor insulator strings include 'I'-shaped insulator strings and 'V'-shaped insulator strings, conductors on the outer side of the tower head are connected with the conductor cross arms through the 'I'-shaped strings, the conductors on the inner side of the tower head are connected with the conductor cross arms and the upper tower body through the 'V'-shaped strings, and accordingly the width of a corridor and the height of the tower head are reduced to the maximum extent. All the conductor cross arms are made of steel angles, so that the advantages of simplicity in node treatment and convenience in processing and mounting of the steel angle components are given to full play. Both the tower leg and the tower body are made of steel pipes, the advantages of small size and high bearing capacity of the steel pipes are given to full play, and accordingly, the weight of the tower is further reduced.
Description
Technical field
What the present invention relates to is a kind of transmission line with four-circuit on single tower tangent tower, belongs to the overhead transmission line iron tower.
Background technology
The development of China's electric utility is at present advanced by leaps and bounds, and special (surpassing) high pressure, big capacity, multiloop carry oneself to become the inexorable trend that electric power is carried, but ultra-high-tension power transmission line causes various contradictions more and more outstanding owing to taking too much, the wide problem in corridor.Extra-high voltage and extra high voltage network adopt the situation of multi-circuits transmission lines on single tower to be obvious ascendant trend in recent years.
Existing super-pressure is main with the double loop mainly with tower multiloop transmission line of electricity, along with the growing tension of circuit corridor resource, also begins to apply to engineering design with tower four loops, has greatly reduced the circuit corridor.
At present there is lead horizontally and two kinds of vertical arrangements with the practice of four times power transmission towers of tower.Two kinds of arrangements respectively have superiority, and the former invests relatively low, and cost is practiced thrift about 40% than the latter; But width of corridor is relatively large.Comparatively speaking, not under the unusual crowded situation in the circuit corridor, no matter adopt is that economic benefit or social benefit all have bigger advantage four times with tower horizontally.Therefore, actual in conjunction with concrete engineering, arrange to horizontally further optimizing tower head with four times power transmission towers of tower, compress width of corridor to greatest extent and have important practical significance.
Summary of the invention
The objective of the invention is to overcome the deficiency that prior art exists, and the transmission line with four-circuit on single tower tangent tower that a kind of cost is reasonable, practice thrift in the corridor is provided.
The present invention realizes through following technical scheme: it mainly comprises tower leg, body of the tower, tower head and is fixedly connected on the wire insulation substring on the tower head, described tower head by the lead cross-arm, line bracket and form with the last body of the tower that body of the tower is connected together mutually; Described lead cross-arm comprises cross-arm, middle cross-arm and following cross-arm, and they are arranged to three layers in the bilateral symmetry of last body of the tower, and are fixedly connected with last body of the tower respectively.
Described wire insulation substring comprises two kinds of " I " type insulator string and " V " type insulator strings, wherein adopts " I " string to connect with the lead cross-arm in the tower head outboard wire, adopts " V " to go here and there with the lead cross-arm and go up body of the tower in the tower head inboard wire and connects.
The member of said lead cross-arm all adopts angle steel to process, and takes into full account that node on the cross-arm is many, the situation of complex connection, gives full play to that the angle iron component node processing is succinct, the advantage of convenient processing and installation; The main bearing member of said tower leg and body of the tower all adopts steel pipe to process, and gives full play to the advantage that steel pipe build coefficient is little, supporting capacity is high, further reduces tower weight.
Compared with prior art; The invention has the beneficial effects as follows: at first through adopting " V " string form to compress the cross-arm floor height inboard wire insulation substring; Adopt " I " string form to compress cross-arm length to outside wire insulation substring, optimized the tower head structure, reduced the tower head size; Thereby reduce the circuit width of corridor effectively, reduce tower material consumption, improved the transmission power of unit corridor; Secondly, on member was selected, stressed and node connections needs choose reasonable steel pipe and angle steel form according to the iron tower different parts were given full play to the advantage of various members, reduced tower weight, conveniently processed and construction and installation.
Description of drawings
Fig. 1 is a structural representation of the present invention.
The specific embodiment
Label shown in the figure is: go up cross-arm 1, middle cross-arm 2, down cross-arm 3, line bracket 4, go up body of the tower 5, " I " type insulator string 6, " V " type insulator string 7, tower head 8, body of the tower 9, tower leg 10.
To combine accompanying drawing that the present invention is made further detailed description below.Shown in Figure 1, the present invention mainly comprises tower leg 10, body of the tower 9, tower head 8 and is fixedly connected on the wire insulation substring 6,7 on the tower head; Described tower head 8 by the lead cross-arm, line bracket 4 and form with the last body of the tower 5 that body of the tower 9 is connected together mutually; Described lead cross-arm comprises cross-arm 1, middle cross-arm 2 and following cross-arm 3, and they are arranged to three layers in the bilateral symmetry of last body of the tower 5, and are fixedly connected with last body of the tower 5 respectively.
As a kind of improvement, for fully compressing width of corridor and tower head height, outboard wire adopts " I " type insulator string to connect with cross-arm, and inboard wire adopts " V " type insulator string and cross-arm and goes up body of the tower and connects.
As a kind of improvement, the cross-arm member all adopts angle steel, gives full play to that the angle iron component node processing is succinct, the advantage of convenient processing and installation; The main bearing member of tower leg and body of the tower all adopts steel pipe, gives full play to the advantage that steel pipe build coefficient is little, supporting capacity is high, reduces tower weight.
At last, it should be noted that above what enumerate only is specific embodiment of the present invention.Obviously, the invention is not restricted to above embodiment, a lot of distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive from content disclosed by the invention or associate all should be thought protection scope of the present invention.
Claims (3)
1. transmission line with four-circuit on single tower tangent tower; It mainly comprises tower leg, body of the tower, tower head and is fixedly connected on the wire insulation substring on the tower head, it is characterized in that described tower head (8) by the lead cross-arm, line bracket (4) and form with the last body of the tower (5) that body of the tower (9) is connected together mutually; Described lead cross-arm comprises cross-arm (1), middle cross-arm (2) and following cross-arm (3), and they are arranged to three layers in the bilateral symmetry of last body of the tower (5), and are fixedly connected with last body of the tower (5) respectively.
2. transmission line with four-circuit on single tower tangent tower according to claim 1; It is characterized in that described wire insulation substring comprises (7) two kinds of " I " type insulator string (6) and " V " type insulator strings; Wherein adopt " I " to go here and there and connect, adopt " V " string and lead cross-arm and go up body of the tower (5) in the tower head inboard wire to connect with the lead cross-arm in tower head (8) outboard wire.
3. transmission line with four-circuit on single tower tangent tower according to claim 1 and 2 is characterized in that said lead cross-arm all adopts angle steel to process, and said tower leg (10) and body of the tower (9) all adopt steel pipe to process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100210301A CN102561785A (en) | 2012-01-31 | 2012-01-31 | Four-circuit tower for straight power transmission lines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100210301A CN102561785A (en) | 2012-01-31 | 2012-01-31 | Four-circuit tower for straight power transmission lines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102561785A true CN102561785A (en) | 2012-07-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100210301A Pending CN102561785A (en) | 2012-01-31 | 2012-01-31 | Four-circuit tower for straight power transmission lines |
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| CN (1) | CN102561785A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102953576A (en) * | 2012-10-30 | 2013-03-06 | 中国电力科学研究院 | Steel pipe and angle iron hybrid ultrahigh-voltage power transmission tower |
| CN104763208A (en) * | 2015-04-09 | 2015-07-08 | 国家电网公司 | 110kV dual-loop novel butterfly-shaped penetrating and spanning tower in high-altitude area |
Citations (8)
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|---|---|---|---|---|
| GB296420A (en) * | 1927-09-02 | 1928-11-15 | Blaw Knox Co | Improvements in transmission towers |
| CN2635825Y (en) * | 2003-08-13 | 2004-08-25 | 鞍山铁塔开发研制中心 | Multi-circuit integrally installed iron tower for power line |
| JP2004357359A (en) * | 2003-05-27 | 2004-12-16 | Tokyo Electric Power Co Inc:The | Steel tower reconstruction method |
| CN2691130Y (en) * | 2004-03-29 | 2005-04-06 | 江苏省电力公司无锡供电公司 | 220 Kv four loop iron tower structure |
| CN2909652Y (en) * | 2006-05-31 | 2007-06-06 | 北京国电华北电力工程有限公司 | Co-tower double-loop compact linear transmission pylon |
| CN201610653U (en) * | 2010-02-08 | 2010-10-20 | 中国电力工程顾问集团西北电力设计院 | Q420 high-strength steel pipe power transmission tower |
| CN102545126A (en) * | 2011-11-21 | 2012-07-04 | 广东电网公司电力科学研究院 | Same-tower four-loop power transmission line configured with differentiation insulators |
| CN202441100U (en) * | 2012-01-31 | 2012-09-19 | 浙江省电力设计院 | One-tower four-loop power transmission line type tangent tower |
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2012
- 2012-01-31 CN CN2012100210301A patent/CN102561785A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB296420A (en) * | 1927-09-02 | 1928-11-15 | Blaw Knox Co | Improvements in transmission towers |
| JP2004357359A (en) * | 2003-05-27 | 2004-12-16 | Tokyo Electric Power Co Inc:The | Steel tower reconstruction method |
| CN2635825Y (en) * | 2003-08-13 | 2004-08-25 | 鞍山铁塔开发研制中心 | Multi-circuit integrally installed iron tower for power line |
| CN2691130Y (en) * | 2004-03-29 | 2005-04-06 | 江苏省电力公司无锡供电公司 | 220 Kv four loop iron tower structure |
| CN2909652Y (en) * | 2006-05-31 | 2007-06-06 | 北京国电华北电力工程有限公司 | Co-tower double-loop compact linear transmission pylon |
| CN201610653U (en) * | 2010-02-08 | 2010-10-20 | 中国电力工程顾问集团西北电力设计院 | Q420 high-strength steel pipe power transmission tower |
| CN102545126A (en) * | 2011-11-21 | 2012-07-04 | 广东电网公司电力科学研究院 | Same-tower four-loop power transmission line configured with differentiation insulators |
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| 吴烈，姜祥生: "《220kV同杆（塔）四回输电线路研究》", 《供用电》 * |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102953576A (en) * | 2012-10-30 | 2013-03-06 | 中国电力科学研究院 | Steel pipe and angle iron hybrid ultrahigh-voltage power transmission tower |
| CN102953576B (en) * | 2012-10-30 | 2015-06-03 | 中国电力科学研究院 | Steel pipe and angle iron hybrid ultrahigh-voltage power transmission tower |
| CN104763208A (en) * | 2015-04-09 | 2015-07-08 | 国家电网公司 | 110kV dual-loop novel butterfly-shaped penetrating and spanning tower in high-altitude area |
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Application publication date: 20120711 |