CN204571447U - A kind of super large corner double-loop terminal tower - Google Patents
A kind of super large corner double-loop terminal tower Download PDFInfo
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- CN204571447U CN204571447U CN201520287110.0U CN201520287110U CN204571447U CN 204571447 U CN204571447 U CN 204571447U CN 201520287110 U CN201520287110 U CN 201520287110U CN 204571447 U CN204571447 U CN 204571447U
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Abstract
The utility model discloses a kind of super large corner double-loop terminal tower, it comprises tower leg (1), be positioned at the tower body (2) on tower leg (1), the axis (10) of tower body (2) is perpendicular to horizontal plane, the corner number of degrees of super large corner double-loop terminal tower are more than 90 °, earth wire support (6) is erected at the top of tower body (2), the two ends of earth wire support (6) are provided with ground wire hanging point (12), first wire cross-arm (3), second wire cross-arm (4), privates cross-arm (5) from top to bottom space-stop rack to be located at tower body (2) upper and be all positioned at the below of earth wire support (6), first encorbelments jumper wire rack (7), second encorbelments jumper wire rack (8), 3rd encorbelments jumper wire rack (9), wire jumper hanging point (13).A kind of corner number of degrees of the utility model, more than 90 °, can solve the electric clearance problem of large corner and the strong double-loop terminal tower of resistance to deformation, stress performance and torsional rigidity.
Description
Technical field
The utility model relates to a kind of double-loop terminal tower, belongs to technical field of high voltage.It is a kind of super large corner double-loop terminal tower in particular.
Background technology
Along with the development of domestic and international power construction, power transmission line corridor is more and more in short supply, the condition of the steel tower position of transmission line of electricity is more and more severe, especially the line position in power station, because power station is selected in the narrow part in river course mostly, the landform steeper of two sides, terminal tower position selectable location may be unique in circumference 1 kilometer, and under individual cases, shaft tower gyration number exceedes conventional 90 °.For this situation, according to project situation in the past and retrieval pertinent literature, traditional processing mode is: (1) gives up comparatively safe reliable tower position, has to take the second best and selects to need the poor tower position by process; (2) being less than 90 degree to meet angle, carrying out evolution by force by the tower position poor in landform, to meet the requirement of pole and tower foundation, although this scheme can make scheme set up, the impact caused environment is very large and add investment.
Super large corner double-loop terminal tower refers to the double-loop terminal tower of the corner number of degrees more than 90 °.Compared with the shaft tower that super large corner terminal tower and tradition are less than or equal to 90 ° of corners, there are following difference and technological difficulties: (1) corner number of degrees more than 90 ° after, traditional cross-arm pattern cannot meet the electric clearance between corner outboard wire and tower body; (2) the corner number of degrees more than 90 ° after, traditional wire jumper cross-arm pattern is difficult to the electric clearance met between wire jumper and tower body; (3) the corner number of degrees more than 90 ° after, in order to meet electric clearance, the cantilever span of cross-arm and earth wire support increases, in traditional cross-arm and earth wire support pattern the rigidity of cross-arm and earth wire support and stress performance poor.
How to design economic super large corner double-loop terminal tower reliably, overcome the corner number of degrees more than 90 ° after the difficult problem brought, become the major tasks solving engineering problem.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art part, and provides a kind of super large corner double-loop terminal tower.It is a kind of can solve large corner electric clearance problem and the strong double-loop terminal tower of resistance to deformation, stress performance and torsional rigidity.
The purpose of this utility model is reached by following measure: a kind of super large corner double-loop terminal tower, it comprises tower leg, be positioned at the tower body on tower leg, the axis of tower body is perpendicular to horizontal plane, it is characterized in that the corner number of degrees α of super large corner double-loop terminal tower is more than 90 °, earth wire support is erected at the top of tower body, the two ends of earth wire support are provided with ground wire hanging point, the upper plane of earth wire support is vertical with axis, first wire cross-arm, second wire cross-arm, privates cross-arm from top to bottom space-stop rack to be located on tower body and to be all positioned at the below of earth wire support, first wire cross-arm, second wire cross-arm, privates cross-arm two ends are provided with conducting wire hanging point and wire cross-arm lower plane is all vertical with axis,
Earth wire support comprises outside earth wire support and line bracket medially, first wire cross-arm comprises the first outboard wire cross-arm and the first inboard wire cross-arm, second wire cross-arm comprises the second outboard wire cross-arm and the second inboard wire cross-arm, privates cross-arm comprises the 3rd outboard wire cross-arm and the 3rd inboard wire cross-arm, the width of outside earth wire support is the upper plane of earth wire support and the width of tower body junction, first outboard wire cross-arm, second outboard wire cross-arm, the width of the 3rd outboard wire cross-arm is respectively the first wire cross-arm, second wire cross-arm, the lower plane of privates cross-arm and the width of tower body junction,
First encorbelments jumper wire rack, second encorbelments jumper wire rack, 3rd jumper wire rack of encorbelmenting lays respectively at the first outboard wire cross-arm, second outboard wire cross-arm, the end of the 3rd outboard wire cross-arm and respectively perpendicular to the first outboard wire cross-arm, second outboard wire cross-arm, the lower plane of the 3rd outboard wire cross-arm and axis, first encorbelments jumper wire rack, second encorbelments jumper wire rack, 3rd encorbelments jumper wire rack respectively relative to the first outboard wire cross-arm, second outboard wire cross-arm, 3rd outboard wire cross-arm is symmetrical and be equipped with three wire jumper hanging points, three wire jumper hanging points lay respectively at two ends and the middle part of jumper wire rack of encorbelmenting.
In technique scheme, the first wire cross-arm, the second wire cross-arm, privates cross-arm, earth wire support are variable cross-section.
In technique scheme, the first wire cross-arm, the second wire cross-arm, privates cross-arm, earth wire support are provided with closed every face.
In technique scheme, upper plane and the lower plane angle of outside earth wire support, the first outboard wire cross-arm, the second outboard wire cross-arm, the horizontal end separately of the 3rd outboard wire are all not less than 18 °.
Advantage of the present utility model can be summarized as follows: (1) is provided with the wide Square wire cross-arm of same tower body, meets outboard wire with the electric clearance requirement between tower body, overcomes the closing in of wire cross-arm and makes wire with the hypotelorism of tower body.
(2) be provided with jumper wire rack of encorbelmenting, wire jumper load is born by the jumper wire rack of encorbelmenting be arranged on outside conducting wire hanging point, meet outside wire jumper with the electric clearance requirement between tower body, thus not by angle limits.
(3) be provided with the wire cross-arm pattern of variable cross-section, improve rigidity and the stress performance of great cantilever wire cross-arm and earth wire support, reduce wire cross-arm and earth wire support distortion and improve its stress performance.
(4) wire cross-arm and earth wire support arrange closed every face, enhance the resistance to deformation of wire cross-arm and earth wire support, stress performance, also increase the torsional rigidity of encorbelment jumper wire rack and outboard wire cross-arm.
(5) there is good economy, safety.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 a, Fig. 2 b, Fig. 2 c, Fig. 2 d are respectively earth wire support top view, the first wire cross-arm and first encorbelments jumper wire rack top view, the second wire cross-arm and second encorbelments jumper wire rack top view, privates cross-arm and the 3rd encorbelments jumper wire rack.
Fig. 3 a, Fig. 3 b, Fig. 3 c are respectively the first jumper wire rack left view, second jumper wire rack left view, the 3rd of encorbelmenting of encorbelmenting and encorbelment jumper wire rack left view.
Fig. 4 a, Fig. 5 a are respectively outboard wire cross-arm schematic diagram and outside earth wire support schematic diagram.
The F-F place every face schematic diagram, Fig. 5 a that the E-E place that Fig. 4 b, Fig. 5 b are respectively Fig. 4 a closes closed every face schematic diagram.
Fig. 6 is transmission line of electricity corner schematic diagram.
In figure 1, tower leg, 2, tower body, 3, first wire cross-arm, 31, first outboard wire cross-arm, 32, first inboard wire cross-arm, 4, second wire cross-arm, 41, second outboard wire cross-arm, 42, second inboard wire cross-arm, 5, privates cross-arm, 51, 3rd outboard wire cross-arm, 52, 3rd inboard wire cross-arm, 6, earth wire support, 61, outside earth wire support, 62, line bracket medially, 7, first encorbelments jumper wire rack, 8, second encorbelments jumper wire rack, 9, 3rd encorbelments jumper wire rack, 10, axis, 11, conducting wire hanging point, 12, ground wire hanging point, 13, wire jumper hanging point, 14, every face, α, the corner number of degrees.
Detailed description of the invention
Describe performance of the present utility model in detail below in conjunction with accompanying drawing, but it is not formed to restriction of the present utility model, only illustrates.Simultaneously by illustrating, advantage of the present utility model will become clearly and easy understand.
Accompanying drawings is known: a kind of super large corner double-loop terminal tower, it comprises tower leg 1, be positioned at the tower body 2 on tower leg 1, the axis 10 of tower body 2 is perpendicular to horizontal plane, it is characterized in that the corner number of degrees α of super large corner double-loop terminal tower is more than 90 °, earth wire support 6 is erected at the top of tower body 2, the two ends of earth wire support 6 are provided with ground wire hanging point 12, the upper plane of earth wire support 6 is vertical with axis 10, first wire cross-arm 3, second wire cross-arm 4, privates cross-arm 5 from top to bottom space-stop rack to be located on tower body 2 and to be all positioned at the below of earth wire support 6, first wire cross-arm 3, second wire cross-arm 4, privates cross-arm 5 two ends are provided with conducting wire hanging point 11 and its wire cross-arm lower plane is all vertical with axis 10,
Earth wire support 6 comprises outside earth wire support 61 and line bracket 62 medially, first wire cross-arm 3 comprises the first outboard wire cross-arm 31 and the first inboard wire cross-arm 32, second wire cross-arm 4 comprises the second outboard wire cross-arm 41 and the second inboard wire cross-arm 42, privates cross-arm 5 comprises the 3rd outboard wire cross-arm 51 and the 3rd inboard wire cross-arm 52, the width of outside earth wire support 61 is the upper plane of earth wire support 6 and the width of tower body 2 junction, first outboard wire cross-arm 31, second outboard wire cross-arm 41, the width of the 3rd outboard wire cross-arm 51 is respectively the first wire cross-arm 3, second wire cross-arm 4, the lower plane of privates cross-arm 5 and the width of tower body 2 junction,
First encorbelments jumper wire rack 7, second encorbelments jumper wire rack 8, 3rd jumper wire rack 9 of encorbelmenting lays respectively at the first outboard wire cross-arm 31, second outboard wire cross-arm 41, the end of the 3rd outboard wire cross-arm 51 and respectively perpendicular to the first outboard wire cross-arm 31, second outboard wire cross-arm 41, the lower plane of the 3rd outboard wire cross-arm 51 and axis 10, first encorbelments jumper wire rack 7, second encorbelments jumper wire rack 8, 3rd encorbelments jumper wire rack 9 respectively relative to the first outboard wire cross-arm 31, second outboard wire cross-arm 41, 3rd outboard wire cross-arm 51 is symmetrical and be equipped with three wire jumper hanging points 13, three wire jumper hanging points 13 lay respectively at two ends and the middle part of jumper wire rack of encorbelmenting.
Described a kind of super large corner double-loop terminal tower, is characterized in that the first wire cross-arm 3, second wire cross-arm 4, privates cross-arm 5, earth wire support 6 are variable cross-section.The pattern of variable cross-section improves the first wire cross-arm 3, second wire cross-arm 4, privates cross-arm 5, earth wire support 6 rigidity and stress performance, reduces distortion and improves stress performance.
Described a kind of super large corner double-loop terminal tower, is characterized in that the first wire cross-arm 3, second wire cross-arm 4, privates cross-arm 5, earth wire support 6 are provided with closed every face 14.The resistance to deformation, the stress performance that enhance wire cross-arm and earth wire support 6 every face 14 closed, also increase the torsional rigidity of encorbelment jumper wire rack and outboard wire cross-arm.
Described a kind of super large corner double-loop terminal tower, is characterized in that the upper plane of end and lower plane angle are all not less than 18 ° separately for outside earth wire support 61, first outboard wire cross-arm 31, second outboard wire cross-arm 41, the 3rd outboard wire cross-arm 51.
The transmission line of electricity corner schematic diagram consulting Fig. 6 is known, take angular bisector as boundary, and the side that wire direction of advance is pointed to is inside corner, otherwise is then outside corner.
As described in the embodiment, the outboard wire cross-arm of the main material in jumper wire rack front with plane intersection on outboard wire cross-arm of encorbelmenting is for becoming slope pattern, and the position, change slope of outside earth wire support 61 is arranged on liftoff line bracket 6 end about 2m-3m.First inboard wire cross-arm 32, second inboard wire cross-arm 42, the 3rd inboard wire cross-arm 52, medially line bracket 62 are arranged with the shaft tower of ordinary steering angle, without special feature.According to the clearance requirement of electric specialty, determine wire cross-arm Len req.According to existing code, specification and engineering specific requirement, according to the size of existing wire cross-arm length line bracket definitely.
Other, without the part described in detail, is prior art.
Claims (4)
1. a super large corner double-loop terminal tower, it comprises tower leg (1), be positioned at the tower body (2) on tower leg (1), the axis (10) of tower body (2) is perpendicular to horizontal plane, it is characterized in that the corner number of degrees α of super large corner double-loop terminal tower is more than 90 °, earth wire support (6) is erected at the top of tower body (2), the two ends of earth wire support (6) are provided with ground wire hanging point (12), the upper plane of earth wire support (6) is vertical with axis (10), first wire cross-arm (3), second wire cross-arm (4), privates cross-arm (5) from top to bottom space-stop rack to be located at tower body (2) upper and be all positioned at the below of earth wire support (6), first wire cross-arm (3), second wire cross-arm (4), privates cross-arm (5) two ends are provided with conducting wire hanging point (11) and wire cross-arm lower plane is all vertical with axis (10),
Earth wire support (6) comprises outside earth wire support (61) and line bracket (62) medially, first wire cross-arm (3) comprises the first outboard wire cross-arm (31) and the first inboard wire cross-arm (32), second wire cross-arm (4) comprises the second outboard wire cross-arm (41) and the second inboard wire cross-arm (42), privates cross-arm (5) comprises the 3rd outboard wire cross-arm (51) and the 3rd inboard wire cross-arm (52), the width in outside earth wire support (61) is the upper plane of earth wire support (6) and the width of tower body (2) junction, first outboard wire cross-arm (31), second outboard wire cross-arm (41), the width of the 3rd outboard wire cross-arm (51) is respectively the first wire cross-arm (3), second wire cross-arm (4), the lower plane of privates cross-arm (5) and the width of tower body (2) junction,
First encorbelments jumper wire rack (7), second encorbelments jumper wire rack (8), 3rd jumper wire rack (9) of encorbelmenting lays respectively at the first outboard wire cross-arm (31), second outboard wire cross-arm (41), the end of the 3rd outboard wire cross-arm (51) and respectively perpendicular to the first outboard wire cross-arm (31), second outboard wire cross-arm (41), the lower plane of the 3rd outboard wire cross-arm (51) and axis (10), first encorbelments jumper wire rack (7), second encorbelments jumper wire rack (8), 3rd encorbelments jumper wire rack (9) respectively relative to the first outboard wire cross-arm (31), second outboard wire cross-arm (41), 3rd outboard wire cross-arm (51) is symmetrical and be equipped with three wire jumper hanging points (13), three wire jumper hanging points (13) lay respectively at two ends and the middle part of jumper wire rack of encorbelmenting.
2. a kind of super large corner double-loop terminal tower according to claim 1, is characterized in that the first wire cross-arm (3), the second wire cross-arm (4), privates cross-arm (5), earth wire support (6) are variable cross-section.
3. a kind of super large corner double-loop terminal tower according to claim 1 and 2, is characterized in that the first wire cross-arm (3), the second wire cross-arm (4), privates cross-arm (5), earth wire support (6) are provided with closed every face (14).
4. a kind of super large corner double-loop terminal tower according to claim 3, is characterized in that separately the upper plane of end and lower plane angle are all not less than 18 ° for outside earth wire support (61), the first outboard wire cross-arm (31), the second outboard wire cross-arm (41), the 3rd outboard wire cross-arm (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520287110.0U CN204571447U (en) | 2015-05-06 | 2015-05-06 | A kind of super large corner double-loop terminal tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520287110.0U CN204571447U (en) | 2015-05-06 | 2015-05-06 | A kind of super large corner double-loop terminal tower |
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| Publication Number | Publication Date |
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| CN204571447U true CN204571447U (en) | 2015-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520287110.0U Active CN204571447U (en) | 2015-05-06 | 2015-05-06 | A kind of super large corner double-loop terminal tower |
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| CN (1) | CN204571447U (en) |
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