A kind of 1000kV alternating current ultra-high voltage single-column overhung angle tower
Technical field:
The utility model belongs to used for transmission line iron tower technical field, relates in particular to a kind of 1000kV alternating current ultra-high voltage single-column overhung angle tower.
Background technology:
At present, the most angle tower arrangement that dangles all is consistent with the tangent tower layout pattern that dangles, and it is longer that cross-arm stretches out body of the tower length, bending resistance, the torsional property of iron tower are little, cause tower weight heavier, and the iron tower root is opened bigger, be not easy to the selection and the basic type selecting of tower position, the circuit cost is also higher.
The utility model content:
Longer at the angle tower cross-arm extension elongation of dangling of umbrella shape in the prior art, root is opened bigger, causes the very heavy technical problem of body of the tower load, the utility model proposes following technical scheme:
A kind of 1000kV alternating current ultra-high voltage single-column overhung angle tower, comprise ground wire cross-arm, Construction and Maintenance frame, lead cross-arm, body of the tower, column foot master material, the single-column angle tower overall structure of dangling is " Г " structure, column foot master material is fixed on the basis, body of the tower integral body is trapezoidal-structure, and the below is fixedly connected with column foot master material, and the body of the tower medium position is connected with the lead cross-arm, the body of the tower top connects with the ground wire cross-arm, and the end away from body of the tower on the ground wire cross-arm is connected with the Construction and Maintenance frame.
Described body of the tower medium position is connected with the lead cross-arm, lead cross-arm structure triangular in shape, and leg-of-mutton obtuse angle is downward.
Described body of the tower top connects with the ground wire cross-arm, ground wire cross-arm structure triangular in shape, and the base is up.
Described Construction and Maintenance are flat trapezium structure with frame, the long base of trapezium structure up, hypotenuse is connected with the ground wire cross-arm.
From above-mentioned technical scheme as can be seen, compared with prior art, among the embodiment of the present utility model, the single-column that the adopts angle tower that dangles can satisfy the requirement of electric clearance, adopt single-column among the utility model embodiment angle tower two loop line road branches that dangle to hang on one's body two separate single-column Tatas, do not change between lead wire and earth wire and the alternate relativeness of lead simultaneously.Be arranged vertically up and down at phase conductor, horizontal-shift, ground wire are consistent with adjacent tangent tower to the aspects such as shielding angle of lead relatively between lead wire and earth wire, make that the single-column angle tower structure of dangling is simpler, tower weight is lighter; The reducing of single Ta Genkai makes the single-column angle tower that dangles strengthen greatly the compliance of landform, geological conditions.
Description of drawings
Fig. 1 is that the utility model is applied in double back transmission line single-column 10 °~15 ° iron tower tower head structural representations of angle tower that dangle.
Wherein: 1. ground wire cross-arm, 2. Construction and Maintenance frame, 3. lead cross-arm, 4. lead hanging point, 5. body of the tower, 6. column foot master material.
Fig. 2 is that the utility model is applied in double back transmission line single-column 15 °~20 ° iron tower tower head structural representations of angle tower that dangle.
Wherein: 1. ground wire cross-arm, 2. Construction and Maintenance frame, 4. lead hanging point, 5. body of the tower, 6. column foot master material.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
As shown in Figure 1, 2, a kind of 1000kV alternating current ultra-high voltage single-column overhung angle tower, this single-column angle tower overall structure of dangling is " Г " structural configuration, and it is trapezoidal to comprise that ground wire cross-arm 1, Construction and Maintenance are arranged as with frame 2, lead cross-arm 3, body of the tower 5, column foot master material 6, body of the tower 5, and section is a square.Column foot master material 6 is fixed on the basis, and body of the tower 5 belows are fixedly connected with column foot master material 6, connects with lead cross-arm 3 on the body of the tower 5.
Described body of the tower 5 medium positions are connected with lead cross-arm 3, lead cross-arm 3 structures triangular in shape, and leg-of-mutton obtuse angle is downward, single-column dangles in the arrangement of angle tower, and cross-arm length reduces, the torsion resistant and bending resistant better performances, power performance is good simultaneously, and its anti-ice, wind resistance and anti-seismic performance are good.
Body of the tower 5 tops connect with ground wire cross-arm 1, and ground wire cross-arm 1 structure triangular in shape is connected with Construction and Maintenance with frame 2 on the ground wire cross-arm 1, and described Construction and Maintenance are flat trapezium structure with frame 2, the long base of trapezium structure up, hypotenuse is connected with ground wire cross-arm 1.
When the corner number of degrees that Fig. 1 is applied in the angle tower that dangles in the dual loop transmission line engineering are 10 °~15 °, be characterized in 2 of ground wires, be hung in end on two single-column tower ground wire cross-arms 1 arranged side by side, 6 in lead is hung on two single-column tower lead hanging points 4 arranged side by side.
When the corner number of degrees that Fig. 2 is applied in the angle tower that dangles in the dual loop transmission line engineering are 15 °~20 °, be characterized in 2 of ground wires, be hung in end on two single-column tower ground wire cross-arms 1 arranged side by side, 6 in lead is hung on two single-column tower lead hanging points 4 arranged side by side.
This technology is applicable to that the 1000kV electric pressure exchanges wide-angle in the double-circuit line angle tower that dangles.
Above content is to further describing that the present invention did in conjunction with concrete preferred implementation; can not assert that the specific embodiment of the present invention only limits to this; for the general technical staff of the technical field of the invention; without departing from the inventive concept of the premise; can also make some simple deduction or replace, all should be considered as belonging to the present invention and determine scope of patent protection by claims of being submitted to.