CN201635469U - 500 kV compact type transmission line straight small angle tower - Google Patents
500 kV compact type transmission line straight small angle tower Download PDFInfo
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- CN201635469U CN201635469U CN2010201394309U CN201020139430U CN201635469U CN 201635469 U CN201635469 U CN 201635469U CN 2010201394309 U CN2010201394309 U CN 2010201394309U CN 201020139430 U CN201020139430 U CN 201020139430U CN 201635469 U CN201635469 U CN 201635469U
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Abstract
The utility model relates to a 500 kV compact type transmission line straight small angle tower. Two earth wire brackets (1) are arranged at the top of a tower head (9); a middle cross beam (2) is arranged on the tower head (9); an inner side upper crank arm (3) and an outer side upper crank arm (4) are arranged at two ends of the middle cross beam (2); the upper end of an outer side middle crank arm (6) is connected with the outer side upper crank arm (4); the lower end of the outer side middle crank arm (6) is connected with an outer side lower crank arm (8); the other end of the outer side lower crank arm (8) is fixed on the tower body (13); the upper end of an inner side middle cross beam (5) is connected with the inner side upper crank arm (3); the lower end of the inner side middle cross beam (5) is connected an inner side lower crank arm (7); and the other end of the inner side lower crank arm (7) is fixed on the tower body (13). Compared with an existing strain tower with equivalent height, the 500 kV compact type transmission line straight small angle tower has the advantages that 8.35 t tower material can be saved, simultaneously the quantity of insulators can be saved and the construction cost can be effectively reduced, and the economic benefit is good.
Description
Technical field
The utility model relates to the overhead transmission line iron tower, and it is the little angle tower of a kind of 500kV compact transmission line straight line in particular.
Background technology
Along with the development of China 500kV supergrid and deepening continuously of national power networking construction, transmission line of electricity new problem and higher requirement have constantly been proposed, 500kV compact power transmission sequence is owing to saving the circuit corridor, improve the advantage of aspects such as circuit transmission power, it uses also more and more, so the planning problem of compact shaft tower is also more and more outstanding.
The existing 500kV compact line of China mostly adopts two class shaft towers, and the one, not with the tangent tower of corner, the one, strained angled tower.By the design experiences of 500kV power transmission sequence in the past as can be known, should adopt straight line band angle tower as far as possible, reduce the quantity of strained angled tower, reduce construction costs less circuit corner.
Therefore,, design a kind of tangent tower, the economic indicator that reduces engineering is played an important role with less corner for 500kV compact power transmission sequence.
1., the insulator consumption is big adopt anchor support to have as following shortcoming:: every basic strained angled tower needs 21 insulators altogether.2., wire jumper is installed complicated; easily break down in wire jumper drainage plate joint; project installation expense and maintenance workload have been increased; 3., the protection gold utensil is many; each wire jumper string is adorned 14 weights; 4., steel basis consumption is big (every Ji Ta altogether need 126), every basic anchor support need be adorned 18 jumper wire spacing rods.5., potential safety hazard is big, anchor support is a weak link of line insulator, lightning protection, many flashover faults take place frequently on anchor support.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, the little angle tower of 500kV compact transmission line straight line when providing a kind of circuit corner to be 3 °-8 °.
The purpose of this utility model reaches by following measure: the little angle tower of 500kV compact transmission line straight line, it comprises tower leg, body of the tower, tower head and the three-phase conducting wire insulator string that is fixed on the tower head, it is characterized in that described tower head top is provided with two ground line brackets, tower head is provided with middle cross beam, the two ends of middle cross beam be provided with crank arm on the inboard and the outside on crank arm, crank arm on the upper end of cranking arm and the outside in the outside and be connected, the lower end of cranking arm in the outside is connected with outside lower bent lever, the other end of outside lower bent lever is fixed on the body of the tower, crank arm on the upper end of cranking arm in the inboard and the inboard and be connected, the lower end of cranking arm in the inboard is connected with inboard lower bent lever, and the other end of inboard lower bent lever is fixed on the body of the tower.
In technique scheme, described three-phase conducting wire insulator string is the V-type insulator string, and following phase conductor is a symmetric arrangement with the V-type insulator string, and two are gone up phase conductor is asymmetric layout with the V-type insulator string; The V-type insulator string that last phase conductor is used, the inboard hanging point height of corner, outside hanging point is low.
In technique scheme, one in described two ground line brackets is arranged on the junction of cranking arm on middle cross beam and the inboard, and another ground line bracket is arranged on the junction of cranking arm on the middle cross beam and the outside.
In technique scheme, described phase conductor down is 141 ° with the angle of V-type insulator string; Phase conductor is 81 ° with the angle of V-type insulator string on two, and wherein the corner inboard is 27 °, and the corner outside is 54 °.
In technique scheme, described two last phase conductors are divided into the inboard phase conductor phase conductor V-type insulator string on the V-type insulator string and the outside of going up with the V-type insulator string, and phase conductor is fixed on the middle cross beam by hanger with the outside hanging point of V-type insulator string on the inboard.
The anchor support of little angle tower of the utility model 500kV compact transmission line straight line and existing height equivlent compares, and the tower material can be saved about 8.35t, can save the insulator amount simultaneously, effectively reduces construction costs, has good economic benefit; Also can reduce forest felling and housing demolition in addition, obtain good environment, social benefit.
Description of drawings
Fig. 1 is the structural representation of the little angle tower of the utility model 500kV compact transmission line straight line.
1. ground line brackets among the figure, 2. middle cross beam is 3. cranked arm on the inboard, 4. crank arm on the outside, 5. crank arm in the inboard, 6. crank arm in the outside, 7. inboard lower bent lever, 8. outside lower bent lever, 9. tower head, 10. the inboard phase conductor V-type insulator string of going up, 11. phase conductor V-type insulator string on the outside, 12. times phase conductor V-type insulator strings, 13. bodies of the tower, 14. tower leg, 15. hangers.
The specific embodiment
Describe performance of the present utility model in detail below in conjunction with accompanying drawing, but they do not constitute to qualification of the present utility model, only do for example.Simultaneously by illustrating that advantage of the present utility model will become clear more and understand (left side in the accompanying drawing is the outside, and the right side is inboard) easily.
Consult accompanying drawing as can be known: the little angle tower of the utility model 500kV compact transmission line straight line, it comprises tower leg 14, body of the tower 13, tower head 9 and the three-phase conducting wire insulator string that is fixed on the tower head 9, tower head 9 tops are provided with two ground line brackets 1, tower head 9 is provided with middle cross beam 2, the two ends of middle cross beam 2 be provided with crank arm on the inboard 3 and the outside on crank arm 4, cranking arm in the outside cranks arm on 6 upper end and the outside 4 is connected, crank arm in the outside 6 lower end is connected with outside lower bent lever 8, the other end of outside lower bent lever 8 is fixed on the body of the tower 13, cranking arm in the inboard cranks arm on 5 upper end and the inboard 3 is connected, crank arm in the inboard 5 lower end is connected with inboard lower bent lever 7, and the other end of inboard lower bent lever 7 is fixed on the body of the tower 13.
Described three-phase conducting wire insulator string is the V-type insulator string, and following phase conductor is a symmetric arrangement with V-type insulator string 12, and two are gone up phase conductor is asymmetric layout with the V-type insulator string; The V-type insulator string that last phase conductor is used, the inboard hanging point height of corner, outside hanging point is low.
One in described two ground line brackets 1 is arranged on 3 junctions of cranking arm on middle cross beam 2 and the inboard, and another ground line bracket 1 is arranged on 4 junctions of cranking arm on the middle cross beam 2 and the outside.
Described down phase conductor is 141 ° (∠ CO in the accompanying drawing " C ' the number of degrees) with the angle of V-type insulator string 12; Phase conductor is 81 ° (number of degrees of the number of degrees of ∠ DOD ' and ∠ EO ' E ' in the accompanying drawing) with the angle of V-type insulator string on two, wherein the corner inboard is 27 ° (number of degrees of the number of degrees of ∠ AOD ' and ∠ BO ' E ' in the accompanying drawing), the corner outside is 54 ° (number of degrees of the number of degrees of ∠ DOA and ∠ EO ' B in the accompanying drawing), and A-A and B-B ' are respectively axis among the figure.
Go up phase conductor and be divided into the inboard phase conductor of going up with phase conductor V-type insulator string 11 on the V-type insulator string 10 and the outside with the V-type insulator string for described two, phase conductor is fixed on the middle cross beam 2 by hanger 15 with the outside hanging point of V-type insulator string 10 on the inboard.
Tower head 9 by crank arm 3 on ground line bracket 1, middle cross beam 2, the inboard, crank arm 4 on the outside, crank arm in the inboard 5, crank arm 6 in the outside, inboard lower bent lever 7, outside lower bent lever 8 form.Ground line bracket 1 is positioned at the top, and is respectively in the medial and lateral of tower head 9, connects middle cross beam 2 below, connect again crank arm on the inboard 3 and the outside on crank arm 4, connect again and crank arm 5 in the inboard, crank arm 6 in the outside, connect inboard lower bent lever 7, outside lower bent lever 8 at last.
Described three-phase conducting wire insulator string is the V-type insulator string, and three-phase conducting wire is the layout of falling the isosceles triangle.Following phase conductor is a symmetric arrangement with V-type insulator string 12, and angle is (in the practical application may more greatly or a little bit smaller) about 141 °, and the medial and lateral hanging point lays respectively at and cranks arm 5 in the inboard, crank arm 6 in the outside; Phase conductor is asymmetric layout with V-type insulator string 10 on the inboard, and angle is about 81 °, and the corner inboard is about 27 °, the corner outside is about 54 °, and inboard hanging point position height is positioned at the node place on the middle cross beam 2, outside hanging point position is low, and hanging point is positioned at the node place of middle cross beam 2 upper hangers 15.Phase conductor is asymmetric layout with V-type insulator string 11 on the outside, and angle is about 81 °, and the corner inboard is about 27 °, the corner outside is about 54 °, and inboard hanging point position height is positioned at the node place on the middle cross beam 2, outside hanging point position, hanging point are positioned at the node place of cranking arm on the outside on 4.
The design of the little angle tower of compact straight line band is difficulty very, and the utility model makes full use of the wide variety of tower head and arranges V-type insulator string position.Last phase conductor is asymmetric distribution, for cooperating the outside to go up the hanging point not contour layout of phase conductor with V-type insulator string 11, has designed hanger 15 especially in addition.These measures effectively guarantee the safe operation of V-type string.
At last, it should be noted that above enumerate only for concrete case study on implementation of the present utility model.Obviously, the utility model is not limited to above case study on implementation, and a lot of distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive from the disclosed content of the utility model or association falls all should be thought protection domain of the present utility model.
Claims (5)
1.500kV the little angle tower of compact transmission line straight line, it comprises tower leg (14), body of the tower (13), tower head (9) and be fixed on three-phase conducting wire insulator string on the tower head (9), it is characterized in that described tower head (9) top is provided with two ground line brackets (1), tower head (9) is provided with middle cross beam (2), the two ends of middle cross beam (2) are provided with on the inboard crank arm on crank arm (3) and the outside (4), crank arm in the outside crank arm on upper end and the outside of (6) (4) be connected, crank arm in the outside lower end of (6) is connected with outside lower bent lever (8), the other end of outside lower bent lever (8) is fixed on the body of the tower (13), crank arm in the inboard crank arm on upper end and the inboard of (5) (3) be connected, crank arm in the inboard lower end of (5) is connected with inboard lower bent lever (7), and the other end of inboard lower bent lever (7) is fixed on the body of the tower (13).
2. the little angle tower of 500kV compact transmission line straight line according to claim 1, it is characterized in that described three-phase conducting wire insulator string is the V-type insulator string, following phase conductor is a symmetric arrangement with V-type insulator string (12), and two are gone up phase conductor is asymmetric layout with the V-type insulator string; The last phase conductor inboard hanging point height of V-type insulator string corner, outside hanging point is low.
3. the little angle tower of 500kV compact transmission line straight line according to claim 1, it is characterized in that one in described two ground line brackets (1) is arranged on (3) junction of cranking arm on middle cross beam (2) and the inboard, another ground line bracket (1) is arranged on (4) junction of cranking arm on the middle cross beam (2) and the outside.
4. the little angle tower of 500kV compact transmission line straight line according to claim 2 is characterized in that described phase conductor down is 141 ° with the angle of V-type insulator string (12); Phase conductor is 81 ° with the angle of V-type insulator string on two, and wherein the corner inboard is 27 °, and the corner outside is 54 °.
5. the little angle tower of 500kV compact transmission line straight line according to claim 4, it is characterized in that described two are gone up phase conductor and are divided into the inboard phase conductor of going up with phase conductor V-type insulator string (11) on the V-type insulator string (10) and the outside with the V-type insulator string, phase conductor is fixed on the middle cross beam (2) by hanger (15) with the outside hanging point of V-type insulator string (10) on the inboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201394309U CN201635469U (en) | 2010-03-23 | 2010-03-23 | 500 kV compact type transmission line straight small angle tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201394309U CN201635469U (en) | 2010-03-23 | 2010-03-23 | 500 kV compact type transmission line straight small angle tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201635469U true CN201635469U (en) | 2010-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201394309U Expired - Fee Related CN201635469U (en) | 2010-03-23 | 2010-03-23 | 500 kV compact type transmission line straight small angle tower |
Country Status (1)
| Country | Link |
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| CN (1) | CN201635469U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102361301A (en) * | 2011-08-26 | 2012-02-22 | 安徽省电力设计院 | Asymmetrical V-shaped insulator string array structure of rigid jumper wire of power transmission line |
| CN103259234A (en) * | 2011-08-26 | 2013-08-21 | 安徽省电力设计院 | Electric transmission line rigid jumper asymmetric V-shaped insulator chain setting structure |
| CN104060876A (en) * | 2014-07-04 | 2014-09-24 | 湖南省电力勘测设计院 | 500 kV double-circuit compact iron tower with upper window and lower window perpendicularly arranged |
| CN104614612A (en) * | 2015-02-02 | 2015-05-13 | 国家电网公司 | Simulating testing platform for electric shielding of double-loop linear angle tower |
-
2010
- 2010-03-23 CN CN2010201394309U patent/CN201635469U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102361301A (en) * | 2011-08-26 | 2012-02-22 | 安徽省电力设计院 | Asymmetrical V-shaped insulator string array structure of rigid jumper wire of power transmission line |
| CN103259234A (en) * | 2011-08-26 | 2013-08-21 | 安徽省电力设计院 | Electric transmission line rigid jumper asymmetric V-shaped insulator chain setting structure |
| CN102361301B (en) * | 2011-08-26 | 2013-08-28 | 安徽省电力设计院 | Asymmetrical V-shaped insulator string array structure of rigid jumper wire of power transmission line |
| CN103259234B (en) * | 2011-08-26 | 2014-10-08 | 安徽省电力设计院 | Electric transmission line rigid jumper asymmetric V-shaped insulator chain setting structure |
| CN104060876A (en) * | 2014-07-04 | 2014-09-24 | 湖南省电力勘测设计院 | 500 kV double-circuit compact iron tower with upper window and lower window perpendicularly arranged |
| CN104614612A (en) * | 2015-02-02 | 2015-05-13 | 国家电网公司 | Simulating testing platform for electric shielding of double-loop linear angle 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: 20150204 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150204 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 Democratic Road, Wuchang District, Hubei, Wuhan (Central South Electric Power Design Institute) Patentee before: Central Southern China Electric Power Design Institute, China Power Engineering Consulting Group Cor |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101117 Termination date: 20170323 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |