CN209780390U - Special anti-icing tower for wind power plant 35kV double-circuit overhead transmission line - Google Patents
Special anti-icing tower for wind power plant 35kV double-circuit overhead transmission line Download PDFInfo
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- CN209780390U CN209780390U CN201822071156.5U CN201822071156U CN209780390U CN 209780390 U CN209780390 U CN 209780390U CN 201822071156 U CN201822071156 U CN 201822071156U CN 209780390 U CN209780390 U CN 209780390U
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Abstract
The utility model discloses a special anti-ice tower for a wind power plant 35kV double-circuit overhead transmission line, which comprises a tower head and a tower frame; the tower frame is composed of four main tower columns, a plurality of cross rods and a plurality of inclined rods, and a tower head is arranged at the upper end of the tower frame; the tower head is trapezoidal and comprises a ground wire cross arm, an upper lead cross arm and a lower lead cross arm; a ground wire hanging point group is arranged on the ground wire cross arm; an upper wire hanging point group is arranged on the upper wire cross arm; a lower wire hanging point group is arranged on the lower wire cross arm; the utility model has scientific and reasonable design, elegant appearance, safety and reliability, and is suitable for 35kV double-circuit overhead transmission lines of wind power plants in IV-level heavy ice areas and below; the tower head is provided with two layers of wire cross arms, the average height of wire hanging points and the tower height of the anti-icing tower are reduced, so that the load of the anti-icing tower is reduced, the survival capability of the anti-icing tower under the condition of repeated icing is improved, the material consumption of the anti-icing tower is reduced to the maximum extent, the cost of the anti-icing tower is reduced, and the economical efficiency of the anti-icing tower is good.
Description
Technical Field
The utility model relates to a wind-powered electricity generation field tower especially relates to a special anti ice tower of wind-powered electricity generation field 35kV double-circuit overhead transmission line.
Background
A35 kV overhead transmission line of a wind power plant generally adopts a national power grid typical design atlas 06B series tower type, and the series tower type is suitable for meteorological conditions of 15mm icing thickness and below; the tower head part of a double-circuit iron tower in a 06B series tower type is drum-shaped, and the tower head is provided with three layers of wire cross arms and a single ground wire; the wire cross arms of the upper layer, the middle layer and the lower layer are provided with wire hanging points. For wind power plants distributed in heavy ice regions of level II and above, 06B series tower types are not suitable in component strength and tower head structure, and are easy to damage and collapse in ice-covered weather, and lines are easy to trip due to ice jumping in ice melting, so that the wind power plants are replaced by anti-ice tower types with the voltage level of 110kV and above. However, for double-circuit lines, the cost of iron towers with the voltage class of 110kV and above is too high, the economical efficiency is very poor, and no special anti-ice tower suitable for 35kV double-circuit overhead transmission lines in wind power plants exists at present.
SUMMERY OF THE UTILITY MODEL
In order to solve the weak point that above-mentioned technique exists, the utility model provides a two special anti ice towers of return overhead transmission line of wind-powered electricity generation field 35 kV.
in order to solve the technical problem, the utility model discloses a technical scheme is: an anti-icing tower special for a 35kV double-circuit overhead transmission line of a wind power plant comprises a tower head and a tower frame; the tower frame is composed of four main tower columns, a plurality of cross rods and a plurality of inclined rods, and a tower head is arranged at the upper end of the tower frame;
The tower head is trapezoidal and comprises a ground wire cross arm, an upper lead cross arm and a lower lead cross arm; the ground wire cross arm, the upper lead cross arm and the lower lead cross arm are sequentially arranged from top to bottom, and the lower lead cross arm is arranged at the upper end of the tower; the ground wire cross arm is provided with two ground wire hanging point groups; the two ground wire hanging point groups are respectively arranged at the left end and the right end of the ground wire cross arm;
The upper wire cross arm is provided with two upper wire hanging point groups; the two upper wire hanging point groups are respectively arranged at the left end and the right end of the upper wire cross arm;
The lower wire cross arm is provided with four lower wire hanging point groups, and the four lower wire hanging point groups are sequentially arranged from left to right.
The lower wire hanging point group comprises a first wire hanging point group, a second wire hanging point group, a third wire hanging point group and a fourth wire hanging point group, and the first wire hanging point group and the fourth wire hanging point group are respectively arranged at the left end and the right end of the lower wire cross arm; the second wire hanging point group is arranged on the right side of the first wire hanging point group, and the third wire hanging point group is arranged on the right side of the second wire hanging point group.
The maximum value of the vertical distance between the ground wire cross arm and the upper wire cross arm is 3 meters; the maximum vertical distance between the upper and lower wire cross arms is 3.5 meters.
the upper wire hanging point groups at the left end and the right end of the upper wire cross arm are horizontally deviated outwards relative to the ground wire hanging point groups at the left end and the right end of the ground wire cross arm respectively, and the minimum horizontal deviation is 1 meter; the first wire hanging point group and the fourth wire hanging point group are horizontally deviated outwards relative to the upper wire hanging point groups at the left end and the right end of the upper wire cross arm respectively, and the minimum value of the horizontal deviation is 1.5 meters.
Furthermore, the horizontal distance between the ground wire hanging point groups at the left end and the right end of the ground wire cross arm is 5.3 meters; the horizontal distance between the upper wire hanging point groups at the left end and the right end of the upper wire cross arm is 7.3 meters; the horizontal distance between the first wire hanging point group and the second wire hanging point group is 3 meters, and the horizontal distance between the second wire hanging point group and the third wire hanging point group is 4.3 meters.
The main tower column, the cross rod and the diagonal rod are all made of galvanized angle steel.
The utility model has scientific and reasonable design, elegant appearance, safety and reliability, and is suitable for 35kV double-circuit overhead transmission lines of wind power plants in IV-level heavy ice areas and below; the tower head is provided with two layers of wire cross arms, the average height of wire hanging points and the tower height of the anti-icing tower are reduced, so that the load of the anti-icing tower is reduced, the survival capability of the anti-icing tower under the condition of repeated icing is improved, the material consumption of the anti-icing tower is reduced to the maximum extent, the cost of the anti-icing tower is reduced, and the economical efficiency of the anti-icing tower is good.
Drawings
fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a top view of the ground cross arm.
Fig. 3 is a top view of the upper wire cross arm.
Fig. 4 is a top view of the lower wire cross arm.
In the figure: 1. a ground wire cross arm; 2. an upper wire cross arm; 3. a lower wire cross arm; 4. a ground wire hanging point group; 5. hanging point groups on the upper leads; 6. a first wire hanging point group; 7. a second wire hanging point group; 8. a third wire hanging point group; 9. and a fourth wire hanging point group.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in figure 1, the special anti-icing tower for the 35kV double-circuit overhead transmission line of the wind power plant is suitable for 35kV double-circuit overhead transmission lines of the wind power plant in an IV-level heavy ice area (with the icing thickness of 30mm) or below. The anti-icing tower comprises a tower head and a tower frame; the pylon comprises four main tower columns, a plurality of cross bars and a plurality of diagonal rods, and the upper end of the pylon is provided with a pylon head. The main tower column, the cross rod and the diagonal rod are made of galvanized angle steel; the anti-ice tower is assembled by Q435B and Q235B galvanized angle steel bars, so that the structural strength of the anti-ice tower is stronger; three-phase wires of each circuit of the double-circuit overhead transmission line are arranged in a triangular shape; the standard nominal height of the anti-icing tower is 12 meters, and the tower type with nominal height of 15-30 meters is optional.
the tower head is trapezoidal and comprises a ground wire cross arm 1, an upper lead cross arm 2 and a lower lead cross arm 3; the ground wire cross arm 1, the upper lead cross arm 2 and the lower lead cross arm 3 are sequentially arranged from top to bottom, and the lower lead cross arm 3 is arranged at the upper end of the tower; the ground wire cross arm 1 is provided with two ground wire hanging point groups 4; the two ground wire hanging point groups are respectively arranged at the left end and the right end of the ground wire cross arm 1; the ground wire is designed to be double ground wires so as to ensure that the protection angle of the ground wire is not more than 15 degrees.
The upper wire cross arm 2 is provided with two upper wire hanging point groups 5; the two upper wire hanging point groups are respectively arranged at the left end and the right end of the upper wire cross arm 2;
The lower wire cross arm 3 is provided with four lower wire hanging point groups, and the four lower wire hanging point groups are sequentially arranged from left to right.
As shown in fig. 2 to 4, each ground wire hanging point group includes two ground wire hanging points, and the two ground wire hanging points are respectively disposed on the front side and the rear side of the ground wire cross arm 1; each upper wire hanging point group comprises two upper wire hanging points which are respectively arranged on the front side and the rear side of the upper wire cross arm 2; each lower wire hanging point group comprises two lower wire hanging points which are respectively arranged on the front side and the rear side of the lower wire cross arm 3.
The lower wire hanging point group comprises a first wire hanging point group 6, a second wire hanging point group 7, a third wire hanging point group 8 and a fourth wire hanging point group 9, and the first wire hanging point group 6 and the fourth wire hanging point group 9 are respectively arranged at the left end and the right end of the lower wire cross arm 3; the second wire hanging point group 7 is arranged on the right side of the first wire hanging point group 6, and the third wire hanging point group 8 is arranged on the right side of the second wire hanging point group 7.
The maximum value of the vertical distance between the ground wire cross arm 1 and the upper lead cross arm 2 is 3 meters; the maximum vertical distance between upper wire cross arm 2 and lower wire cross arm 3 is 3.5 meters.
The upper wire hanging point groups at the left end and the right end of the upper wire cross arm 2 are horizontally deviated outwards relative to the ground wire hanging point groups at the left end and the right end of the ground wire cross arm 1 respectively, and the minimum horizontal deviation is 1 meter; the first wire hanging point group 6 and the fourth wire hanging point group 9 are horizontally offset outwards relative to the upper wire hanging point groups at the left end and the right end of the upper wire cross arm 2 respectively, and the minimum horizontal offset is 1.5 meters.
Wire hanging points are arranged on upper, middle and lower layer wire cross arms of a tower head structure of a double-circuit iron tower in a 06B series tower type; and the utility model discloses a tower head structure includes upper and lower two-layer wire cross arm, is provided with four lower wire on the wire cross arm 3 and hangs some groups down, has reduced the average height of wire string point and the tower height of anti ice tower to anti ice tower load has been reduced, and then when realizing improving the survivability of anti ice tower under the condition of repeated icing, furthest reduces the material quantity of anti ice tower, has reduced the cost of anti ice tower, and the economic nature of anti ice tower is good.
the first embodiment,
The vertical distance between the ground wire cross arm 1 and the upper wire cross arm 2 is 3 meters, the vertical distance between the upper wire cross arm 2 and the lower wire cross arm 3 is 3.5 meters, and the height of the tower head is 6.5 meters.
The horizontal distance between the ground wire hanging point groups at the left end and the right end of the ground wire cross arm 1 is 5.3 meters; the horizontal distance between the upper wire hanging point groups at the left end and the right end of the upper wire cross arm 2 is 7.3 meters; the horizontal distance between the first wire registration point group 6 and the second wire registration point group 7 is 3 meters, and the horizontal distance between the second wire registration point group 7 and the third wire registration point group 8 is 4.3 meters, so the horizontal distance between the first wire registration point group 6 and the fourth wire registration point group 9 is 10.3 meters.
The height of tower head part is 6.5 meters, and maximum width is 10.3 meters, the utility model discloses compare with 06B series two tower types that return, the vertical projection width has increased 5.2 meters, but the tower height has reduced 3.5 meters. By redesigning the tower head structure of the ice-resistant tower and pertinently enhancing the structural strength of the tower, the survival capability of the ice-resistant tower in a IV-level heavy ice area (ice coating thickness is 30mm) is ensured, the weight of the tower material of the ice-resistant tower is only 2.623 tons, and the weight of the tower material is 0.446 ton (20.5%) heavier than that of a typical design tower suitable for the same purpose with the ice coating thickness of 10mm, and the weight of the tower material is far lower than that of a tower with the same type of 110kV, so that the production cost of the ice-resistant tower is low, and the economical efficiency is good.
The utility model redesigns the tower head structure, reduces the height of the wire hanging point and the tower height of the ice-resistant tower, and reduces the load of the ice-resistant tower; the distance between the lead and the ground wire meets the requirements of relevant standards and specifications, and the probability of tripping accidents caused by ice jumping during ice melting is greatly reduced. Through the structural strength who strengthens anti ice tower, improved anti ice tower viability under the weather of repeated icing, and then improved the reliability and the security of circuit. Through brand-new tower head structural design and targeted enhancement design of tower frame structural strength, the total weight of the anti-icing tower is limited, the material consumption is reduced, and the economical efficiency of the anti-icing tower is improved.
The above embodiments are not intended to limit the present invention, and the present invention is not limited to the above examples, and the technical personnel in the technical field are in the present invention, which can also belong to the protection scope of the present invention.
Claims (6)
1. an anti-icing tower special for a 35kV double-circuit overhead transmission line of a wind power plant comprises a tower head and a tower frame; the method is characterized in that: the tower frame is composed of four main tower columns, a plurality of cross rods and a plurality of inclined rods, and a tower head is arranged at the upper end of the tower frame;
The tower head is trapezoidal and comprises a ground wire cross arm (1), an upper lead cross arm (2) and a lower lead cross arm (3); the ground wire cross arm (1), the upper lead cross arm (2) and the lower lead cross arm (3) are sequentially arranged from top to bottom, and the lower lead cross arm (3) is arranged at the upper end of the tower; the ground wire cross arm (1) is provided with two ground wire hanging point groups (4), and the number of the ground wire hanging point groups (4) is two; the two ground wire hanging point groups are respectively arranged at the left end and the right end of the ground wire cross arm (1);
the upper wire cross arm (2) is provided with two upper wire hanging point groups (5), and the number of the upper wire hanging point groups (5) is two; the two upper wire hanging point groups are respectively arranged at the left end and the right end of the upper wire cross arm (2);
The lower wire cross arm (3) is provided with four lower wire hanging point groups which are sequentially arranged from left to right.
2. The special anti-icing tower for the 35kV double-circuit overhead transmission line in the wind power plant according to claim 1, characterized in that: the lower wire hanging point group comprises a first wire hanging point group (6), a second wire hanging point group (7), a third wire hanging point group (8) and a fourth wire hanging point group (9), and the first wire hanging point group (6) and the fourth wire hanging point group (9) are respectively arranged at the left end and the right end of the lower wire cross arm (3); the second wire hanging point group (7) is arranged on the right side of the first wire hanging point group (6), and the third wire hanging point group (8) is arranged on the right side of the second wire hanging point group (7).
3. The special anti-icing tower for the 35kV double-circuit overhead transmission line in the wind power plant according to claim 1, characterized in that: the maximum vertical distance between the ground wire cross arm (1) and the upper lead cross arm (2) is 3 meters; the maximum vertical distance between the upper wire cross arm (2) and the lower wire cross arm (3) is 3.5 meters.
4. The special anti-icing tower for the 35kV double-circuit overhead transmission line in the wind power plant according to claim 2, characterized in that: the upper wire hanging point groups at the left end and the right end of the upper wire cross arm (2) are horizontally deviated outwards relative to the ground wire hanging point groups at the left end and the right end of the ground wire cross arm (1) respectively, and the minimum horizontal deviation is 1 meter; the first wire hanging point group (6) and the fourth wire hanging point group (9) are horizontally offset towards the outer side relative to the upper wire hanging point groups at the left end and the right end of the upper wire cross arm (2) respectively, and the minimum horizontal offset is 1.5 m.
5. The special anti-icing tower for the 35kV double-circuit overhead transmission line in the wind power plant according to claim 4, characterized in that: the horizontal distance between the ground wire hanging point groups at the left end and the right end of the ground wire cross arm (1) is 5.3 meters; the horizontal distance between the upper wire hanging point groups at the left end and the right end of the upper wire cross arm (2) is 7.3 meters; the horizontal distance between the first wire hanging point group (6) and the second wire hanging point group (7) is 3 meters, and the horizontal distance between the second wire hanging point group (7) and the third wire hanging point group (8) is 4.3 meters.
6. The special anti-icing tower for the 35kV double-circuit overhead transmission line in the wind power plant according to claim 1, characterized in that: the main tower column, the cross rod and the inclined rod are all made of galvanized angle steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822071156.5U CN209780390U (en) | 2018-12-11 | 2018-12-11 | Special anti-icing tower for wind power plant 35kV double-circuit overhead transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822071156.5U CN209780390U (en) | 2018-12-11 | 2018-12-11 | Special anti-icing tower for wind power plant 35kV double-circuit overhead transmission line |
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| Publication Number | Publication Date |
|---|---|
| CN209780390U true CN209780390U (en) | 2019-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822071156.5U Active CN209780390U (en) | 2018-12-11 | 2018-12-11 | Special anti-icing tower for wind power plant 35kV double-circuit overhead transmission line |
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| CN (1) | CN209780390U (en) |
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- 2018-12-11 CN CN201822071156.5U patent/CN209780390U/en active Active
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