CN202672827U - Two-circuit vortex inducted vibration (VIV) string drum type straight-line tower - Google Patents
Two-circuit vortex inducted vibration (VIV) string drum type straight-line tower Download PDFInfo
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- CN202672827U CN202672827U CN 201220224271 CN201220224271U CN202672827U CN 202672827 U CN202672827 U CN 202672827U CN 201220224271 CN201220224271 CN 201220224271 CN 201220224271 U CN201220224271 U CN 201220224271U CN 202672827 U CN202672827 U CN 202672827U
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Abstract
A two-circuit vortex inducted vibration (VIV) string drum type straight-line tower mainly comprises a tower body (11), wire cross arms (12), a ground wire support (13) and tower legs (14). The wire cross arms (12) comprises an upper layer cross arm (121), a middle layer cross arm (122) and a lower layer cross arm (123), wherein the upper layer cross arm (121) and the lower layer cross arm (123) adopt V-shaped insulation strings, and the middle layer cross arm (122) adopts I-shaped insulation strings. The distance between the upper wire layer and the middle wire layer of a three-phase I-shaped string is large, and space utilization rater is not high. A corridor is large in width and occupation space, and high in cost. In a three-phase V-shaped cross arm pole tower, the tower head is the highest, and the cross arm is the longest. The diagonal materials of the right faces of the cross arms are force-bearing materials, and the index of steel materials is not economic, and the insulation strings are consumed a lot. The arrangement style of the novel VIV string has the big advantages of saving the steel index, reducing the size of the tower head, optimizing the width of the corridor, guaranteeing safe operation of circuits.
Description
Technical field
The utility model relates to the High-Voltage Technology field, is specifically related to a kind of double loop VIV string drum-shaped straight transmission tower.
Background technology
The selection of tower is the important topic of transmission line of electricity.The optimization of tower head form and arrangements of conductors layout optimization not only have the tower load of minimizing, dwindle gap size, reduce the shaft tower index, reduce circuit corridor and construction investment, improve the advantage of anti-ice overload capacity, inhibition conductor galloping, simplification gold utensil and insulator string design, simultaneously, can also greatly reduce the resistance loss in the transmission of electricity process, reduce energy loss, reach the purpose of energy-conservation, consumption reduction, environmental protection, have obvious economic benefit and social benefit, the electrical network of building " resource-conserving, environmentally friendly " is had great meaning.Optimization tower head size, wire arrangements pattern have become an important means that reduces construction costs.
In double loop power transmission engineering design in the past, usually adopt two kinds of tower head layout patterns of 3I, 3V, these two kinds of arrangements cut both ways, and the upper conductor layer spacing of three-phase " I " string is larger, and space availability ratio is not high; And width of corridor is larger, and it is large to occupy the space, and cost is high.Three-phase " V " is in the shaft tower pattern of three layers of cross-arm, and tower head is the highest, and cross-arm is the longest, and the positive tiltedly material of cross-arm is and is subjected to dead-wood, and the steel index is uneconomical; And insulator expends many.
Summary of the invention
The purpose of this utility model is to overcome the weak point of above-mentioned existing background technology, and a kind of double loop VIV string drum-shaped straight transmission tower is provided, to reduce the circuit width of corridor, to reduce the shaft tower index.
The purpose of this utility model reaches by following measure: double loop VIV string drum-shaped straight transmission tower, it mainly comprises body of the tower, the wire cross-arm, earth wire support and tower leg, it is characterized in that described wire cross-arm comprises upper strata cross-arm, middle level cross-arm and lower floor's cross-arm, upper strata cross-arm and lower floor's cross-arm adopt the V-type insulator string, and the middle level cross-arm adopts I type insulator string, and the plane is vertical with the axis on the cross-arm of middle level; Described body of the tower extends the top of described tower leg, and the axis of described body of the tower is vertical with horizontal plane; Described wire cross-arm is erected at the both sides of body of the tower, and the upper strata cross-arm is vertical with the axis with the lower plane of lower floor's cross-arm, and the upper plane of middle level cross-arm is vertical with the axis; The wire cross-arm adopts trussed construction, at the wire cross-arm hanging point element that has been threaded; Earth wire support is erected at plane on the cross-arm of upper strata, and the plane becomes miter angle with the body of the tower axis on the earth wire support, and earth wire support adopts trussed construction, and the earth wire support of the left and right sides is symmetrical.
In technique scheme, described conducting wire hanging point has six places, and every place hanging point is bolted the hanging wire angle steel, and the one side that also comprises that is connected with the hanging wire angle steel is close to the structure angle steel on the cross-arm master material.
In technique scheme, described upper strata cross-arm is chosen length outward and is chosen length outward greater than the middle level cross-arm, the upper strata cross-arm is chosen length and lower floor cross-arm outward, and to choose length outward identical, upper strata cross-arm and lower floor cross-arm two ends and V string hanging wire material is set with the body of the tower joint, and cross-arm two ends, middle level arrange I string hanging wire material.
In technique scheme, the height of exhaling of described tangent tower is 42m, the upper plane of earth wire support and the lower plane of lower floor's cross-arm distance are 24.3m, conducting wire hanging point on the cross-arm of upper strata and the distance of axis are 6.246m, limit conducting wire hanging point on the cross-arm of middle level and the distance of axis are 9.05m, limit conducting wire hanging point on lower floor's cross-arm and the distance of axis are 7.440m, ground wire hanging point on the earth wire support and the distance of axis are 9.05m, the bottleneck width of tangent tower is 4.0m, and the open top width of body of the tower is 2.0m.
VIV of the present utility model string layout pattern in the saving steel index, reduce the tower head size, optimize width of corridor, ensure that the aspects such as circuit safe operation have greater advantages, specifically contrast referring to table 1.
Table 1: the comparison sheet of the lower three kinds of different structural shapes of equal conditions
Double loop VIV string drum-shaped straight transmission tower of the present utility model, three-phase conducting wire adopts the tower head layout pattern of " VIV " string, the tower head size can satisfy the electric clearance requirement, and by rational structure design, the circuit width of corridor is narrow, and shaft tower uses exhales height less, and single basic shaft tower index is less expensive also, steel tower has enough mechanical strengths, and reduces steel and basic use amount.
Description of drawings
Fig. 1 is the structural representation of double loop VIV string drum-shaped straight transmission tower of the present utility model.
Fig. 2 is the wire cross-arm elevational schematic view of double loop VIV string drum-shaped straight transmission tower of the present utility model.
Fig. 3 is the structural representation of existing three-phase " I " string tangent tower.
Fig. 4 is the structural representation of existing three-phase " V " string tangent tower.
Fig. 5 be with Fig. 3, Fig. 4 equal conditions under the structural representation of VIV string drum-shaped straight transmission tower.
1. tangent towers among the figure, 11. body of the tower, 12. wire cross-arm, 121. the upper strata cross-arm, 122. middle levels, 123. lower floor's cross-arms, 13. earth wire support, 14. tower leg, 110. axis, 111. bottlenecks, H. tangent tower exhales height, K. the lower plane distance of the upper plane of earth wire support and wire cross-arm, the conducting wire hanging point on the cross-arm of W. upper strata and the distance of axis, the limit conducting wire hanging point on the cross-arm of Q. middle level and the distance of axis, T. the limit conducting wire hanging point on lower floor's cross-arm and the distance of axis, F. the ground wire hanging point on the earth wire support and the distance of axis, the bottleneck width of P. tangent tower, the open top width of E. body of the tower.
The specific embodiment
Describe performance of the present utility model in detail below in conjunction with accompanying drawing, but they do not consist of to restriction of the present utility model, only for example.Simultaneously by illustrating that advantage of the present utility model will become more clear and easily understanding.
Consult accompanying drawing as can be known: double loop VIV string drum-shaped straight transmission tower, it mainly comprises body of the tower 11, wire cross-arm 12, earth wire support 13 and tower leg 14 form, it is characterized in that described wire cross-arm 12 comprises upper strata cross-arm 121, middle level cross-arm 122 and lower floor's cross-arm 123, upper strata cross-arm 121 and lower floor's cross-arm 123 adopt the V-type insulator string, and middle level cross-arm 122 adopts I type insulator string, and the plane is vertical with axis 110 on the middle level cross-arm 122; Described body of the tower 11 extends the top of described tower leg 14, and the axis 110 of described body of the tower 11 is vertical with horizontal plane; Described wire cross-arm 12 is erected at the both sides of body of the tower 11, and upper strata cross-arm 121 is vertical with axis 110 with the lower plane of lower floor cross-arm 123, and the upper plane of middle level cross-arm 122 is vertical with axis 110; Wire cross-arm 12 adopts trussed constructions, at wire cross-arm 12 hanging point element that has been threaded; Earth wire support 13 is erected at plane on the upper strata cross-arm 121,110 one-tenth miter angles in plane and body of the tower axis on the earth wire support 13, and earth wire support 13 adopts trussed construction, earth wire support 13 symmetries (as shown in Figure 1 and Figure 2) of the left and right sides.
Conducting wire hanging point has six places, and every place hanging point is bolted the hanging wire angle steel, and the one side that also comprises that is connected with the hanging wire angle steel is close to the structure angle steel on the cross-arm master material.
The cross-arm 121 outer length of choosing in upper strata are greater than the middle level cross-arm 122 outer length of choosing, upper strata cross-arm 121 is outer to be chosen length and lower floor cross-arm 123 to choose length outward identical, upper strata cross-arm 121 and lower floor's cross-arm 123 two ends reach with body of the tower 11 joints V string hanging wire material are set, and cross-arm 122 two ends in middle level arrange I string hanging wire material.
The high H that exhales of tangent tower 1 is 42m, the upper plane of earth wire support 13 and the lower plane of lower floor's cross-arm 123 are 24.3m apart from K, conducting wire hanging point 21 on the upper strata cross-arm 121 is 6.246m with the distance W of axis 110, limit conducting wire hanging point 21 on the middle level cross-arm 122 is 9.05m with axis 110 apart from Q, limit conducting wire hanging point 21 on lower floor's cross-arm 123 is 7.440m with axis 110 apart from T, ground wire hanging point 22 on the earth wire support 13 is 9.05m with axis 110 apart from F, the bottleneck width P of tangent tower 1 is 4.0m, and the open top width E of body of the tower 11 is 2.0m(such as Fig. 1, shown in Figure 5).
The utility model double loop VIV string drum-shaped straight transmission tower is used for dual loop transmission line, and as shown in Figure 1, tangent tower 1 the upper and lower cross-arm adopts the V-type insulator string, reduces width of corridor, and the middle level cross-arm adopts I type insulator string to reduce cross-arm length.Plane and the axis 110 vertical spacings that reduced between middle level cross-arm and the lower floor's cross-arm on the cross-arm of middle level.
The tower leg height that the height of tower leg 14 vertically installs tangent tower 1 for the landform of ground being installed according to tangent tower 1, the height of tower leg 14 can be all or part of identical, also can be different, the height of tower leg 14 can design according to the landform of the actual installation of tangent tower 1.By adopting omnibearing unequal leg 14, can reduce the opening of mountain area column foot face, do not destroy landform and the vegetation in mountain area, be beneficial to environmental protection.
The limit phase conductor electric clearance requirement of high voltage power transmission is satisfied in the space that the body of the tower 11 of the cross-arm 12 of every side and cross-arm 12 belows surrounds.
Earth wire support 13 satisfies the electric specialty requirement with the space that body of the tower 11, cross-arm 12 surround.
So-called electric clearance, major embodiment is the distance of conducting wire hanging point and body of the tower on shaft tower, and electric pressure is higher, and this required distance is larger.The adverse effect that the form that the bad weathers such as strong wind, low temperature, icing can increase to load is brought to whole tangent tower 1, body of the tower 11 also will fully take into account these influence factors when design.
Less than the gradient of body of the tower below its bottleneck 111, the described gradient is the angle that the lateral surface of body of the tower 11 becomes with vertical direction to body of the tower 11 in the gradient above its bottleneck 111.The voltage that tangent tower 1 transmits is higher, and its overall dimensions also can be larger, and diameter of wire is also just larger.Body of the tower 11 needs the suitable gradient of design to make whole tangent tower 1 can resist suffered load, and makes the shaft tower steel quantity consumption minimum.The gradient of body of the tower 11 below its bottleneck 111 meets the stressing conditions of whole tower body greater than its gradient above bottleneck 111.
During the design tangent tower, emphasis is each scantling of design tower head (part of bottleneck more than 111), guarantees that the tower head of design satisfies the electric clearance requirement of wire.The height of exhaling that needs again the described tangent tower 1 of corresponding increase by design.
Concrete, a kind of specific embodiment of tangent tower when the utility model provides electric pressure 500kV, with reference to Fig. 1, the high H that exhales of described tangent tower 1 is 42m; The upper plane of earth wire support 13 and the lower plane of wire cross-arm 12 are 24.3m apart from K; Conducting wire hanging point 21 on the upper cross-arm 12 is 6.246m with the distance W of axis 110, and the limit conducting wire hanging point 21 on the middle cross-arm 12 is 9.05m with axis 110 apart from Q, and the limit conducting wire hanging point 21 on the lower cross-arm 12 is 7.440m with axis 110 apart from T.Ground wire hanging point 22 on the earth wire support 13 is 9.05m with axis 110 apart from F.The bottleneck width P of tangent tower 1 is 4.0m.The open top width E of body of the tower 11 is 2.0m.
The steel of tangent tower 1 adopt Q420, Q345 and three kinds of materials of Q235.The shaped steel that tangent tower 1 adopts is angle steel.
Claims (5)
1. double loop VIV string drum-shaped straight transmission tower, it mainly comprises body of the tower (11), wire cross-arm (12), earth wire support (13) and tower leg (14), it is characterized in that described wire cross-arm (12) comprises upper strata cross-arm (121), middle level cross-arm (122) and lower floor's cross-arm (123), upper strata cross-arm (121) and lower floor's cross-arm (123) adopt the V-type insulator string, and middle level cross-arm (122) adopts I type insulator string, and the upper plane of middle level cross-arm (122) is vertical with axis (110); Described body of the tower (11) extends the top of described tower leg (14), and the axis (110) of described body of the tower (11) is vertical with horizontal plane; Described wire cross-arm (12) is erected at the both sides of body of the tower (11), and the lower plane of upper strata cross-arm (121) and lower floor's cross-arm (123) is vertical with axis (110), and the upper plane of middle level cross-arm (122) is vertical with axis (110); Wire cross-arm (12) adopts trussed construction, at wire cross-arm (12) hanging point element that has been threaded; Earth wire support (13) is erected at the upper plane of upper strata cross-arm (121), and the upper plane of earth wire support (13) becomes miter angle with body of the tower axis (110), and earth wire support (13) adopts trussed construction, the earth wire support of the left and right sides (13) symmetry.
2. double loop VIV according to claim 1 string drum-shaped straight transmission tower, it is characterized in that described conducting wire hanging point has six places, every place hanging point is bolted the hanging wire angle steel, and the one side that also comprises that is connected with the hanging wire angle steel is close to the structure angle steel on the cross-arm master material.
3. double loop VIV according to claim 1 string drum-shaped straight transmission tower, it is characterized in that the outer length of choosing of described upper strata cross-arm (121) is greater than the outer length of choosing of middle level cross-arm (122), the outer length of choosing of upper strata cross-arm (121) is identical with the outer length of choosing of lower floor's cross-arm (123), upper strata cross-arm (121) and lower floor's cross-arm (123) two ends reach with body of the tower (11) joint V string hanging wire material are set, and middle level cross-arm (122) two ends arrange I string hanging wire material.
4. double loop VIV according to claim 1 string drum-shaped straight transmission tower, it is characterized in that the gradient of described body of the tower (11) above its bottleneck (111) less than the gradient of body of the tower in its bottleneck (111) below, the described gradient is the angle that the lateral surface of body of the tower (11) becomes with vertical direction.
5. double loop VIV according to claim 1 string drum-shaped straight transmission tower, the height (H) of exhaling that it is characterized in that described tangent tower (1) is 42m, the lower plane distance (K) of the upper plane of earth wire support (13) and lower floor's cross-arm (123) is 24.3m, conducting wire hanging point (21) on the upper strata cross-arm (121) is 6.246m with the distance (W) of axis (110), limit conducting wire hanging point (21) on the middle level cross-arm (122) is 9.05m with the distance (Q) of axis (110), limit conducting wire hanging point (21) on lower floor's cross-arm (123) is 7.440m with the distance (T) of axis (110), ground wire hanging point (22) on the earth wire support (13) is 9.05m with the distance (F) of axis (110), the bottleneck width (P) of tangent tower (1) is 4.0m, and the open top width (E) of body of the tower (11) is 2.0m.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220224271 CN202672827U (en) | 2012-05-18 | 2012-05-18 | Two-circuit vortex inducted vibration (VIV) string drum type straight-line tower |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220224271 CN202672827U (en) | 2012-05-18 | 2012-05-18 | Two-circuit vortex inducted vibration (VIV) string drum type straight-line tower |
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| CN202672827U true CN202672827U (en) | 2013-01-16 |
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| CN 201220224271 Expired - Lifetime CN202672827U (en) | 2012-05-18 | 2012-05-18 | Two-circuit vortex inducted vibration (VIV) string drum type straight-line tower |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102704734A (en) * | 2012-05-18 | 2012-10-03 | 中国电力工程顾问集团中南电力设计院 | Double loop VIV (vortex induced vibration) string-drum-shaped tangent tower |
| CN103993772A (en) * | 2014-06-05 | 2014-08-20 | 国家电网公司 | 110kV lattice composite tower |
| CN108425537A (en) * | 2016-06-27 | 2018-08-21 | 孙丽君 | A kind of electric force pole tower |
-
2012
- 2012-05-18 CN CN 201220224271 patent/CN202672827U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102704734A (en) * | 2012-05-18 | 2012-10-03 | 中国电力工程顾问集团中南电力设计院 | Double loop VIV (vortex induced vibration) string-drum-shaped tangent tower |
| CN103993772A (en) * | 2014-06-05 | 2014-08-20 | 国家电网公司 | 110kV lattice composite tower |
| CN108425537A (en) * | 2016-06-27 | 2018-08-21 | 孙丽君 | A kind of electric force pole tower |
| CN108643674A (en) * | 2016-06-27 | 2018-10-12 | 孙丽君 | A kind of electric force pole tower |
| CN108643675A (en) * | 2016-06-27 | 2018-10-12 | 孙丽君 | A kind of electric force pole tower |
| CN108643674B (en) * | 2016-06-27 | 2020-05-15 | 漳浦新时代农业开发有限公司 | Electric power tower |
| CN108643675B (en) * | 2016-06-27 | 2020-05-19 | 漳浦新时代农业开发有限公司 | Electric power tower |
| CN108425537B (en) * | 2016-06-27 | 2020-06-12 | 烟台知兴知识产权咨询服务有限公司 | Electric power tower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CENTRAL SOUTHERN CHINA ELECTRIC POWER DESIGN INSTI Free format text: FORMER OWNER: CENTRAL SOUTHERN CHINA ELECTRIC POWER DESIGN INSTITUTE, CHINA POWER ENGINEERING CONSULTING GROUP COR Effective date: 20150127 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150127 Address after: 430071 Wuchang District, Hubei, South Central Road No. two, No. 12, No. Patentee after: Co., Ltd of Central Southern China Electric Power Design Institute, China Power Engineering Consulting Group Corporation Address before: 430071 No. 668, democracy Road, Wuhan, Hubei, Wuchang Patentee before: Central Southern China Electric Power Design Institute, China Power Engineering Consulting Group Cor |
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| CX01 | Expiry of patent term |
Granted publication date: 20130116 |
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| CX01 | Expiry of patent term |