CN204899377U - Two return circuits angle tower of 330kV alternating current transmission corner 60-90 - Google Patents
Two return circuits angle tower of 330kV alternating current transmission corner 60-90 Download PDFInfo
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- CN204899377U CN204899377U CN201520663339.XU CN201520663339U CN204899377U CN 204899377 U CN204899377 U CN 204899377U CN 201520663339 U CN201520663339 U CN 201520663339U CN 204899377 U CN204899377 U CN 204899377U
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Abstract
The utility model discloses a two return circuits angle tower of 330kV alternating current transmission corner 60-90, including the body of the tower, set up and to set gradually at under and wire cross arm of the upper conductor cross arm of ground wire cross arm below, well wire cross arm at the ground wire cross arm at body of the tower top and from the top, upper conductor cross arm, well wire cross arm reach down, and the wire cross arm all is connected with the body of the tower, the upper conductor cross arm, well wire cross arm reaches down, and the wire cross arm all includes two branches, set up the both sides in body of the tower tower head lower part respectively, it is nevertheless not isometric, shorten well wire cross arm, because the corner number of degrees are big, interior angle side cross arm length only for the exterior angle incline 12, shorten 2.0m than the cross arm of conventional " drum type " tower, can make the line corridor width reduce, the interlamellar spacing shortens, the iron tower overall height reduces, make its weight reduce, not only reduce the iron tower cost, the effectual space of having practiced thrift of while, can satisfy the line erection requirement that seriously restricts the area in the corridor.
Description
Technical field
The utility model relates to high voltage iron tower, is specifically related to the double loop angle tower of a kind of 330kV ac transmission corner 60 ° ~ 90 °.
Background technology
In prior art, corner steel tower design in 330kV electric pressure double loop is comparatively general, and apply more, designing technique is comparatively ripe, but existing 330kV electric pressure Double Loop Steel Tower weight is comparatively large, and cost is high, especially seriously limits area in corridor, apply traditional Double Loop Steel Tower, cannot implement.
Utility model content
The purpose of this utility model is to overcome above-mentioned problems of the prior art and deficiency, there is provided the double loop angle tower of a kind of 330kV ac transmission corner 60 ° ~ 90 °, this tower lightweight, cost is low, required width of corridor is less, can meet the requirement to 330kV transmission line of alternation current.
To achieve these goals, the technical solution adopted in the utility model is:
Comprise tower body, be arranged on tower body top for hanging the ground wire cross-arm of ground wire and being successively set on from top to down below ground wire cross-arm for hanging the upper conductor cross-arm of two-phase transmission pressure, middle wire cross-arm and lower wire cross-arm;
Described upper conductor cross-arm, middle wire cross-arm and lower wire cross-arm are connected with tower body, and wire cross-arm includes the Liang Ge branch being arranged on both sides, tower body tower head bottom, the length of Liang Ge branch is not etc., rectangle is bottom the side cross-arm of wire cross-arm, mouth is wide wide with the junction of corresponding tower body respectively, is trapezoidal bottom opposite side cross-arm; The bottom shape of ground wire cross-arm is trapezoidal; Tower body is formed in the below of lower wire cross-arm and becomes slope place.
The top opening of described ground wire cross-arm both sides is wide equal, is with tower body junction size 1/4;
The wide 1.2m of trapezoidal mouth of described upper conductor cross-arm, middle wire cross-arm, lower wire cross-arm.
Described ground wire cross-arm top is provided with ground wire hanging point, and upper conductor cross-arm and lower wire cross-arm two side bottom all arrange conducting wire hanging point, and middle wire cross-arm arranges conducting wire hanging point at cross arm end.
Described ground wire hanging point and conducting wire hanging point are link plate type hanging point.
Described ground wire hanging point is arranged on plane on ground wire cross-arm, and both sides hanging point distance axis is respectively 12.5m, 9.5m;
The both sides conducting wire hanging point of upper conductor cross-arm is separately positioned on distance 11.0m, 8.0m place, tower body center;
The both sides conducting wire hanging point of middle wire cross-arm is separately positioned on distance 9.0m, 4.5m place, tower body center;
The both sides conducting wire hanging point of lower wire cross-arm is separately positioned on distance 11.5m, 8.0m place, tower body center.
Described change slope place distance lower wire cross-arm and the junction of tower body are 4.5m.
The overall length of described ground wire cross-arm is 22.0m, and ground wire cross-arm and tower body junction root height are 3.0m, and the cross-arm termination of ground wire cross-arm is pointed, and the angle of both sides is respectively 29 °, 20 °;
The overall length of upper conductor cross-arm is 19.0m, and upper conductor cross-arm and tower body junction root height are 3.0m, and the cross-arm termination of upper conductor cross-arm is pointed, and the angle of both sides is respectively 17 °, 24 °;
The overall length of middle wire cross-arm is 13.5m, and middle wire cross-arm and tower body junction root height are 2.7m, and the cross-arm termination of middle wire cross-arm is pointed, and the angle of both sides is respectively 20 °, 43 °;
Lower wire cross-arm overall length is 19.5m, and lower wire cross-arm and tower body junction root height are 2.8m, and the cross-arm termination of lower wire cross-arm is pointed, and the angle of both sides is respectively 17 °, 26 °.
Interlamellar spacing between described ground wire cross-arm and upper conductor cross-arm is 6.0m; Interlamellar spacing between upper conductor cross-arm and middle wire cross-arm is 9.5m; Spacing between middle wire cross-arm and lower wire cross-arm is 9.0m.
Described tower body is the tower body adopting Q420 high-strength steel to make.
Transmission pressure all adopts simply connected two string gold utensil to be connected with tower body.
Compared with prior art; the utility model has following beneficial effect: in the structural configuration of steel tower, by being shortened by middle wire cross-arm, middle wire cross-arm can be made to shorten than conventional " drum type " tower; reduce the width of corridor of circuit; reduce the removal amount in work transmission line, avoid the large area felling of trees simultaneously, protect ecological environment; under the condition meeting gap; interlamellar spacing shortens about 2.0m, can reduce steel tower overall height, makes its weight reduce about 5.0%.Application of the present utility model, can not only reduce steel tower cost, has effectively saved space simultaneously, can meet the construction of line requirement that corridor seriously limits area.
Further, the utility model conducting wire hanging point is separately positioned on bottom upper conductor cross-arm, middle wire cross-arm and lower wire cross-arm, and conducting wire hanging point hanging point all adopts link plate pattern, thus avoids welding job, effectively strengthen the stress performance of hanging point, meet the requirements such as the intensity of hanging wire node.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is tower leg structural representation one of the present utility model;
Fig. 3 is tower leg structural representation two of the present utility model;
Wherein, 1, tower body; 2, ground wire cross-arm; 3, upper conductor cross-arm; 4, middle wire cross-arm; 5, lower wire cross-arm; 6, slope place is become; 7, junction; 8, tower leg; 9, short tower leg; 10, long tower leg.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further details:
See Fig. 1, the utility model structurally comprises tower body 1, be arranged on tower body 1 top for hang ground wire ground wire cross-arm 2 and be successively set on from top to down below ground wire cross-arm 2 for hanging the upper conductor cross-arm 3 of two-phase transmission pressure, middle wire cross-arm 4 and lower wire cross-arm 5; Upper conductor cross-arm 3, middle wire cross-arm 4 and lower wire cross-arm 5 are all connected with tower body 1.
Upper conductor cross-arm 3, middle wire cross-arm 4 and lower wire cross-arm 5 include Liang Ge branch, are arranged on the left and right sides of tower body 1 tower head bottom, but left and right cross-arm Length discrepancy.
Middle wire cross-arm 4 length is lower than the middle wire cross-arm 2.0m of conventional " drum type " tower; make line corridor width reduce about 3.0m, have compressed width of corridor, reduce the removal amount in work transmission line; avoid the large area felling of trees simultaneously, protect ecological environment.
Ground wire cross-arm 2 is arranged at tower body 1 top, and its bottom shape is trapezoidal, and the top opening of left and right sides is wide equal, is with tower body 1 junction size about 1/4, and to tower head the right and left horizontal stretching.Ground wire hanging point is arranged on plane on ground wire cross-arm 2, and left and right is distance 12.5m, 9.5m place, axis respectively, and the tower body root height of ground wire cross-arm 2 is 3.0m, and ground wire cross-arm 2 is for hanging ground wire, and ground wire shields to twice wires.
Upper conductor cross-arm 3 is positioned at the below of ground wire cross-arm 2, upper conductor cross-arm 3 comprises Liang Ge branch, lay respectively at the left and right sides of tower head bottom, rectangle is bottom cross-arm on the left of it, the tower body junction that mouth is wide with corresponding is wide, be trapezoidal bottom the cross-arm of right side, mouth is wide is 1.2m, and to tower head the right and left horizontal stretching.Upper conductor cross-arm 3 for hanging two-phase transmission pressure, and meets electric clearance requirement.The overall length of upper conductor cross-arm 3 is 19.0m, and left and right conducting wire hanging point is distance tower body center 11.0m, 8.0m respectively.
Middle wire cross-arm 4 is positioned at the below of upper conductor cross-arm 3.Middle wire cross-arm 4 comprises Liang Ge branch, lays respectively at the left and right sides of tower head bottom, is rectangle on the left of it bottom cross-arm, and the tower body junction that mouth is wide with corresponding is wide, is trapezoidal bottom the cross-arm of right side, and mouth is wide is 1.2m, and to tower head the right and left horizontal stretching.Middle wire cross-arm 4 for hanging two-phase transmission pressure, and meets electric clearance requirement.Middle wire cross-arm overall length is 13.5m, and left and right conducting wire hanging point distance tower body center is respectively 9.0m, 4.5m.
Lower wire cross-arm 5 is arranged in the below of wire cross-arm 4.Lower wire cross-arm 5 comprises Liang Ge branch, lays respectively at the left and right sides of tower head bottom, is rectangle on the left of it bottom cross-arm, and the tower body junction that mouth is wide with corresponding is wide, is trapezoidal bottom the cross-arm of right side, and mouth is wide is 1.2m, and to tower head the right and left horizontal stretching.Lower wire cross-arm 5 for hanging two-phase transmission pressure, and meets electric clearance requirement.Lower wire cross-arm 5 overall length is 19.5m, and left and right hanging point distance tower body center is respectively 11.5m, 8.0m.
Interlamellar spacing between ground wire cross-arm and upper conductor cross-arm is 6.0m; Interlamellar spacing between upper conductor cross-arm and middle wire cross-arm is 9.5m; Spacing between middle wire cross-arm and lower wire cross-arm is 9.0m.
The utility model transmission pressure all adopts simply connected two string gold utensil to be connected with tower body 1, two string spacing is 0.4m, upper conductor cross-arm 3, middle wire cross-arm 4 and the conducting wire hanging point of lower wire cross-arm 5 arrange two hanging points respectively and are connected with gold utensil, reasonable structural arrangement, power transmission is clear and definite, has ensured the safe operation of engineering.
The utility model angle tower ground wire hanging point is arranged on ground wire cross-arm 2 top, conducting wire hanging point is separately positioned on bottom upper conductor cross-arm 3, middle wire cross-arm 4 and lower wire cross-arm 5, hanging point all adopts link plate pattern, thus avoid welding job, the stress performance of effective reinforcement hanging point, meets the requirements such as the intensity of hanging wire node.
The change slope place 6 of tower body 1 is 4.5m with lower wire cross-arm 5 and the spacing of the junction 7 of tower body 1, reasonably selects the position becoming slope place 6 effectively can save material, and processes easy for installation.
Tower body 1 main material adopts Q420 high-strength steel, and main material rigidity according to rule change, reduces welding, easy construction from top to bottom as far as possible, reduces tower weight.
Consult Fig. 2 to Fig. 3, the bottom of tower body 1 is connected with tower leg, and this tower leg is tower leg 8, short tower leg 9 or long tower leg 10, to adapt to different topography and geomorphologies.About the lightning protection of shaft tower, 0 ° of protection should not be greater than by code requirement, be optimized for negative shielding angle further.
The utility model angle tower, in the structural configuration of steel tower, middle wire cross-arm is shortened, about 2.0m is shortened than conventional " drum type " tower, interlamellar spacing can be made to shorten, line corridor width reduces, steel tower overall height reduces, its weight is reduced, not only reduce steel tower cost, effectively saved space simultaneously, the construction of line requirement that corridor seriously limits area can be met, the steel tower that " hyperbola " type of employing is arranged, middle wire cross-arm shortens, increase wire jumper cross-arm, line corridor width compression can be made, interlamellar spacing reduces, steel tower overall height reduces, thus reduction cost.
Claims (10)
1. a double loop angle tower for 330kV ac transmission corner 60 ° ~ 90 °, is characterized in that: comprise tower body (1), be arranged on tower body (1) top for hanging the ground wire cross-arm (2) of ground wire and being successively set on ground wire cross-arm (2) below from top to down for hanging the upper conductor cross-arm (3) of two-phase transmission pressure, middle wire cross-arm (4) and lower wire cross-arm (5);
Described upper conductor cross-arm (3), middle wire cross-arm (4) and lower wire cross-arm (5) are connected with tower body (1), and wire cross-arm includes the Liang Ge branch being arranged on both sides, tower body (1) tower head bottom, the length of Liang Ge branch is not etc., rectangle is bottom the side cross-arm of wire cross-arm, mouth is wide wide with the junction of corresponding tower body (1) respectively, is trapezoidal bottom opposite side cross-arm; The bottom shape of ground wire cross-arm (2) is trapezoidal; Tower body (1) is formed in the below of lower wire cross-arm (5) and becomes slope place (6).
2. the double loop angle tower of 330kV ac transmission corner according to claim 1 60 ° ~ 90 °, is characterized in that: the top opening of described ground wire cross-arm (2) both sides is wide equal, is with tower body (1) junction size 1/4;
The wide 1.2m of trapezoidal mouth of described upper conductor cross-arm (3), middle wire cross-arm (4), lower wire cross-arm (5).
3. the double loop angle tower of 330kV ac transmission corner according to claim 1 60 ° ~ 90 °, it is characterized in that: described ground wire cross-arm (2) top is provided with ground wire hanging point, upper conductor cross-arm (3) and lower wire cross-arm (5) two side bottom all arrange conducting wire hanging point, and middle wire cross-arm (4) arranges conducting wire hanging point at cross arm end.
4. the double loop angle tower of 330kV ac transmission corner according to claim 3 60 ° ~ 90 °, is characterized in that: described ground wire hanging point and conducting wire hanging point are link plate type hanging point.
5. the double loop angle tower of 330kV ac transmission corner according to claim 3 60 ° ~ 90 °, is characterized in that: described ground wire hanging point is arranged on the upper plane of ground wire cross-arm (2), and both sides hanging point distance axis is respectively 12.5m, 9.5m;
The both sides conducting wire hanging point of upper conductor cross-arm (3) is separately positioned on distance 11.0m, 8.0m place, tower body (1) center;
The both sides conducting wire hanging point of middle wire cross-arm (4) is separately positioned on distance 9.0m, 4.5m place, tower body (1) center;
The both sides conducting wire hanging point of lower wire cross-arm (5) is separately positioned on distance 11.5m, 8.0m place, tower body (1) center.
6. the double loop angle tower of 330kV ac transmission corner according to claim 1 60 ° ~ 90 °, is characterized in that: described change slope place (6) distance lower wire cross-arm (5) is 4.5m with the junction (7) of tower body (1).
7. the double loop angle tower of 330kV ac transmission corner according to claim 1 60 ° ~ 90 °, it is characterized in that: the overall length of described ground wire cross-arm (2) is 22.0m, ground wire cross-arm (2) and tower body (1) junction root height are 3.0m, the cross-arm termination of ground wire cross-arm (2) is pointed, and the angle of both sides is respectively 29 °, 20 °;
The overall length of upper conductor cross-arm (3) is 19.0m, upper conductor cross-arm (3) and tower body (1) junction root height are 3.0m, the cross-arm termination of upper conductor cross-arm (3) is pointed, and the angle of both sides is respectively 17 °, 24 °;
The overall length of middle wire cross-arm (4) is 13.5m, middle wire cross-arm (4) and tower body (1) junction root height are 2.7m, the cross-arm termination of middle wire cross-arm (4) is pointed, and the angle of both sides is respectively 20 °, 43 °;
Lower wire cross-arm (5) overall length is 19.5m, lower wire cross-arm (5) and tower body (1) junction root height are 2.8m, the cross-arm termination of lower wire cross-arm (5) is pointed, and the angle of both sides is respectively 17 °, 26 °.
8. the double loop angle tower of 330kV ac transmission corner according to claim 1 60 ° ~ 90 °, is characterized in that: the interlamellar spacing between described ground wire cross-arm (2) and upper conductor cross-arm (3) is 6.0m; Interlamellar spacing between upper conductor cross-arm (3) and middle wire cross-arm (4) is 9.5m; Spacing between middle wire cross-arm (4) and lower wire cross-arm (5) is 9.0m.
9. the double loop angle tower of 330kV ac transmission corner according to claim 1 60 ° ~ 90 °, is characterized in that: described tower body (1) is the tower body adopting Q420 high-strength steel to make.
10. the double loop angle tower of 330kV ac transmission corner according to claim 1 60 ° ~ 90 °, is characterized in that: transmission pressure all adopts simply connected two string gold utensil to be connected with tower body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520663339.XU CN204899377U (en) | 2015-08-28 | 2015-08-28 | Two return circuits angle tower of 330kV alternating current transmission corner 60-90 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520663339.XU CN204899377U (en) | 2015-08-28 | 2015-08-28 | Two return circuits angle tower of 330kV alternating current transmission corner 60-90 |
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| Publication Number | Publication Date |
|---|---|
| CN204899377U true CN204899377U (en) | 2015-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520663339.XU Active CN204899377U (en) | 2015-08-28 | 2015-08-28 | Two return circuits angle tower of 330kV alternating current transmission corner 60-90 |
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| Country | Link |
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| CN (1) | CN204899377U (en) |
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2015
- 2015-08-28 CN CN201520663339.XU patent/CN204899377U/en active Active
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