CN209924556U - 220kV and 110kV mixed-compression four-loop narrow-base steel pipe strain tower - Google Patents
220kV and 110kV mixed-compression four-loop narrow-base steel pipe strain tower Download PDFInfo
- Publication number
- CN209924556U CN209924556U CN201920606965.3U CN201920606965U CN209924556U CN 209924556 U CN209924556 U CN 209924556U CN 201920606965 U CN201920606965 U CN 201920606965U CN 209924556 U CN209924556 U CN 209924556U
- Authority
- CN
- China
- Prior art keywords
- tower
- wire
- layer
- hanging points
- cross arm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Suspension Of Electric Lines Or Cables (AREA)
Abstract
The utility model provides a strain tower with a 220kV and 110kV mixed-pressure four-loop narrow foundation steel pipe, which comprises a tower head, a tower body and tower legs, wherein the tower head comprises a top frame cross arm and six layers of wire cross arms which are arranged from top to bottom; the tail ends of the two sides of the top frame cross arm are provided with ground wire hanging points; the top frame cross arm and the wire cross arm are both in a structure which is symmetrical left and right on the front surface; the left and right symmetrical structure takes the central axis of the tower body as a symmetrical axis; the utility model discloses all made great improvement in the aspects such as atress performance, integral modeling, comprehensive economic indicator.
Description
Technical Field
The utility model belongs to the technical field of the power equipment technique and specifically relates to 220kV and 110kV thoughtlessly press four narrow basic steel pipe strain insulator towers in return circuit.
Background
With the increasing requirements of China on social and economic development and environmental protection on transmission line corridors, the transmission line technology of adopting the same tower and multiple circuits becomes necessary, and the method has obvious economic and social benefits especially for areas with developed economy, expensive land and dense houses. The structural arrangement commonly adopted by a multi-loop tower generally has the following characteristics:
(1) the ratio of the whole tower height to the root opening of the conventional multi-loop tower is generally 4-6, and the root opening is large due to the fact that the whole tower height is high, and the multi-loop tower is not strong in applicability to the area with limited urban line occupation.
(2) The conventional wire cross arms are arranged in a triangular mode, and the rigidity of the conventional wire cross arms is often insufficient for structures with large loads and long cantilevers;
(3) the voltage levels of all loops of a conventional multi-loop tower are generally consistent, so that if mixed voltage occurs in a line, an additional iron tower needs to be erected, the width of a line corridor is increased, and the construction cost is greatly increased.
Disclosure of Invention
The utility model provides a 220kV and 110kV thoughtlessly press four narrow basic steel pipe strain insulator towers in return circuit, made great improvement in the aspect of atress performance, integral modeling, comprehensive economic indicator etc..
The utility model adopts the following technical scheme.
The 220kV and 110kV mixed-compression four-loop narrow-base steel pipe strain tower comprises a tower head, a tower body and tower legs, wherein the tower head comprises a top frame cross arm and six layers of conducting wire cross arms which are arranged from top to bottom; the tail ends of the two sides of the top frame cross arm are provided with ground wire hanging points; the top frame cross arm and the wire cross arm are both in a structure which is symmetrical left and right on the front surface; the bilateral symmetry structure takes the central axis of the tower body as a symmetry axis.
The tower body is a two-section isosceles trapezoid, and the tower legs are flat-leg tower legs.
220kV two-circuit conductors are vertically arranged at the left side and the right side of the upper three-layer conductor cross arm of the six-layer conductor cross arm, and 110kV two-circuit conductors are vertically arranged at the left side and the right side of the lower three-layer conductor cross arm of the six-layer conductor cross arm.
And the left and right side end parts of the upper three layers of the six layers of the wire cross arms are provided with hanging bracket structures for hanging jumper wires.
Ground wire hanging points are arranged at the cross arms of the top frames which are symmetrical left and right;
the left and right symmetrical first layer of wire cross arms are used for setting upper hanging points of 220kV wires, and the end parts of the first layer of wire cross arms are provided with upper jumper hanging points;
the bilaterally symmetrical second layer of wire cross arms are used for setting 220kV middle phase wire hanging points, and the end parts of the second layer of wire cross arms are provided with middle phase jumper hanging points;
the left and right symmetrical third layer of wire cross arms are used for setting 220kV lower phase wire hanging points, and the end parts of the third layer of wire cross arms are provided with lower phase jumper wire hanging points;
the fourth layer of conducting wire cross arms which are symmetrical left and right are used for setting 110kV upper phase conducting wire hanging points;
the fifth layer of wire cross arms which are symmetrical left and right are used for setting 110kV middle phase wire hanging points;
and the bilaterally symmetrical sixth layer of wire cross arms are used for setting wire hanging points under the 110kV phase.
The main material of the strain tower is a steel pipe made of Q345B; all sections of the main material are connected by welding flanges with high necks; the oblique material and the auxiliary material of the tension tower are all equal-angle steel of Q235B or Q345B; the inclined material and the auxiliary material are connected with the main material through the gusset plate.
The root opening range of the tower legs is 3642mm-4000 mm.
Compare with conventional multiloop pylon, the utility model has the advantages of it is following:
(1) optimizing the cross arm arrangement: the 220kV wire cross arm sets up the gallows structure at the tip and is used for hanging the wire jumper, avoids conventional triangle-shaped to arrange and causes the cross arm to encorbelment the overlength, has consequently increased the rigidity of cross arm, reduces the deflection under the loading effect.
(2) The narrow-base tower structure is adopted, the occupied area is small, the width of a corridor is small, and the narrow-base tower structure is suitable for areas with limited occupied area such as road green belts and urban lines.
(3) The applicability is strong: through mixing and pressing the arrangement, on the premise that power frequency electric field, power frequency magnetic field, radio interference and audible noise interference all accord with relevant requirements, the four-circuit narrow-base steel tube strain tower is mixed and pressed after optimizing and improving, can arrange 220kV and 110kV with the tower, effectively saves the corridor width, and the suitability is strong.
(4) The comprehensive economic index is more excellent: the wire cross arm adopts a hanger structure to hang the jumper wire, so that the rigidity of the cross arm is enhanced; the main material of the steel pipe is adopted, and the characteristic of excellent wind resistance is utilized, so that the wind load effect can be reduced, and the comprehensive manufacturing cost is reduced.
Drawings
The invention will be described in further detail with reference to the following drawings and detailed description:
FIG. 1 is a schematic diagram of the present invention;
in the figure: hanging points on the 1-220kV lead; 2-hanging points of upper phase jumpers; 3-220kV middle phase conductor hanging points; 4-middle phase jumper hanging points; 5-220kV lower phase conductor hanging points; 6-lower phase jumper hanging point; hanging points of upper conductors of 7-110 kV; 8-110kV middle phase conductor hanging points; 9-110kV lower phase conductor hanging points; 10-ground wire hanging point;
100-tower head; 200-a tower body; 300-tower legs; 400-top frame cross arm; 500-wire cross arm.
Detailed Description
As shown in fig. 1, the 220kV and 110kV mixed-voltage four-loop narrow-base steel pipe strain tower comprises a tower head 100, a tower body 200 and tower legs 300, wherein the tower head comprises a top frame cross arm 400 and six layers of wire cross arms 500 arranged from top to bottom; the tail ends of the two sides of the top frame cross arm are provided with ground wire hanging points; the top frame cross arm and the wire cross arm are both in a structure which is symmetrical left and right on the front surface; the bilateral symmetry structure takes the central axis of the tower body as a symmetry axis.
The tower body is a two-section isosceles trapezoid, and the tower legs are flat-leg tower legs.
220kV two-circuit conductors are vertically arranged at the left side and the right side of the upper three-layer conductor cross arm of the six-layer conductor cross arm, and 110kV two-circuit conductors are vertically arranged at the left side and the right side of the lower three-layer conductor cross arm of the six-layer conductor cross arm.
And the left and right side end parts of the upper three layers of the six layers of the wire cross arms are provided with hanging bracket structures for hanging jumper wires.
Ground wire hanging points 10 are arranged at the left and right symmetrical top frame cross arms;
the left and right symmetrical first layer of wire cross arms are used for setting an upper hanging point 1 on a 220kV wire, and the end parts of the first layer of wire cross arms are provided with upper jumper hanging points 2;
the bilaterally symmetrical second layer of wire cross arms are used for setting a 220kV middle phase wire hanging point 3, and the end parts of the second layer of wire cross arms are provided with middle phase jumper wire hanging points 4;
the left and right symmetrical third layer of wire cross arms are used for setting 220kV lower phase wire hanging points 5, and the end parts of the third layer of wire cross arms are provided with lower phase jumper hanging points 6;
the fourth layer of conducting wire cross arms which are symmetrical left and right are used for setting 110kV upper phase conducting wire hanging points 7;
the fifth layer of wire cross arms which are symmetrical left and right are used for setting 110kV middle phase wire hanging points 8;
and the bilaterally symmetrical sixth layer of wire cross arms are used for setting the 110kV lower phase wire hanging points 9.
The main material of the strain tower is a steel pipe made of Q345B; all sections of the main material are connected by welding flanges with high necks; the oblique material and the auxiliary material of the tension tower are all equal-angle steel of Q235B or Q345B; the inclined material and the auxiliary material are connected with the main material through the gusset plate.
The root opening range of the tower legs is 3642mm-4000 mm.
This product is applicable to the flat ground, and when installation transmission line, the ground wire erects on the roof-rack cross arm, has six layers of wire cross arms, and its upper portion three-layer wire cross arm all is two return conductors of arranging 220kV perpendicularly about the side, and lower part three-layer wire cross arm is two return conductors of arranging 110kV perpendicularly on the left and right sides.
Claims (7)
1.220 kV and 110kV thoughtlessly press narrow basic steel pipe strain insulator tower in four return circuits, including tower head, body of the tower and tower leg, its characterized in that: the tower head comprises a top frame cross arm and six layers of wire cross arms which are arranged from top to bottom; the tail ends of the two sides of the top frame cross arm are provided with ground wire hanging points; the top frame cross arm and the wire cross arm are both in a structure which is symmetrical left and right on the front surface; the bilateral symmetry structure takes the central axis of the tower body as a symmetry axis.
2. The 220kV and 110kV mixed-compression four-circuit narrow-base steel tube strain tower of claim 1, which is characterized in that: the tower body is a two-section isosceles trapezoid, and the tower legs are flat-leg tower legs.
3. The 220kV and 110kV mixed-compression four-circuit narrow-base steel tube strain tower of claim 1, which is characterized in that: 220kV two-circuit conductors are vertically arranged at the left side and the right side of the upper three-layer conductor cross arm of the six-layer conductor cross arm, and 110kV two-circuit conductors are vertically arranged at the left side and the right side of the lower three-layer conductor cross arm of the six-layer conductor cross arm.
4. The 220kV and 110kV mixed-compression four-circuit narrow-base steel tube strain tower of claim 3, which is characterized in that: and the left and right side end parts of the upper three layers of the six layers of the wire cross arms are provided with hanging bracket structures for hanging jumper wires.
5. The 220kV and 110kV mixed-compression four-circuit narrow-base steel tube strain tower of claim 1, which is characterized in that: ground wire hanging points are arranged at the cross arms of the top frames which are symmetrical left and right;
the left and right symmetrical first layer of wire cross arms are used for setting upper hanging points of 220kV wires, and the end parts of the first layer of wire cross arms are provided with upper jumper hanging points;
the bilaterally symmetrical second layer of wire cross arms are used for setting 220kV middle phase wire hanging points, and the end parts of the second layer of wire cross arms are provided with middle phase jumper hanging points;
the left and right symmetrical third layer of wire cross arms are used for setting 220kV lower phase wire hanging points, and the end parts of the third layer of wire cross arms are provided with lower phase jumper wire hanging points;
the fourth layer of conducting wire cross arms which are symmetrical left and right are used for setting 110kV upper phase conducting wire hanging points;
the fifth layer of wire cross arms which are symmetrical left and right are used for setting 110kV middle phase wire hanging points;
and the bilaterally symmetrical sixth layer of wire cross arms are used for setting wire hanging points under the 110kV phase.
6. The 220kV and 110kV mixed-compression four-circuit narrow-base steel tube strain tower of claim 1, which is characterized in that: the main material of the strain tower is a steel pipe made of Q345B; all sections of the main material are connected by welding flanges with high necks; the oblique material and the auxiliary material of the tension tower are all equal-angle steel of Q235B or Q345B; the inclined material and the auxiliary material are connected with the main material through the gusset plate.
7. The 220kV and 110kV mixed-compression four-circuit narrow-base steel tube strain tower of claim 1, which is characterized in that: the root opening range of the tower legs is 3642mm-4000 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920606965.3U CN209924556U (en) | 2019-04-29 | 2019-04-29 | 220kV and 110kV mixed-compression four-loop narrow-base steel pipe strain tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920606965.3U CN209924556U (en) | 2019-04-29 | 2019-04-29 | 220kV and 110kV mixed-compression four-loop narrow-base steel pipe strain tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209924556U true CN209924556U (en) | 2020-01-10 |
Family
ID=69088996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920606965.3U Active CN209924556U (en) | 2019-04-29 | 2019-04-29 | 220kV and 110kV mixed-compression four-loop narrow-base steel pipe strain tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209924556U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111593931A (en) * | 2020-06-10 | 2020-08-28 | 中国电力工程顾问集团西北电力设计院有限公司 | 330kV/110kV thoughtlessly presses narrow base steel pipe of four return circuits tower that dangles |
-
2019
- 2019-04-29 CN CN201920606965.3U patent/CN209924556U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111593931A (en) * | 2020-06-10 | 2020-08-28 | 中国电力工程顾问集团西北电力设计院有限公司 | 330kV/110kV thoughtlessly presses narrow base steel pipe of four return circuits tower that dangles |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209924556U (en) | 220kV and 110kV mixed-compression four-loop narrow-base steel pipe strain tower | |
| CN202645101U (en) | Four-circuit steel tube tower enabling double-circuit 1000 kV and double-circuit 500 kV alternating current power transmission to be conducted on same tower | |
| CN203352105U (en) | A wire arrangement mode converting rod | |
| CN201332249Y (en) | Tangent tower in shape of goblet of same-tower and three-circuit transmission line | |
| CN207934553U (en) | The cross tower in tetra- circuits 500kV | |
| CN209924555U (en) | 220kV single-loop strain drill crossing tower | |
| CN2691130Y (en) | 220 Kv four loop iron tower structure | |
| CN207813168U (en) | Singly cut-off π sections towers in double loop | |
| CN204299268U (en) | A kind of mixed pressure three loop steel tube tower | |
| CN201821070U (en) | Double-circuit compact type angle tower with horizontally-wound and jumped jumper wire of transmission wire | |
| CN204691375U (en) | The narrow base steel tube tower of a kind of 220kV tetra-return cable terminal | |
| CN201574616U (en) | 35KV four-circuit steel pipe rod | |
| CN202395404U (en) | Hybrid voltage four-circuit power transmission line straight-line tower | |
| CN203097398U (en) | 220kV/110kV four-circuit narrow-base steel tube tower | |
| CN210888265U (en) | Open loop tower | |
| CN214402987U (en) | Three-circuit 110kV same-tower phenanthrene-shaped tangent tower | |
| CN214402981U (en) | Transmission line single loop wine glass tower | |
| CN108005458A (en) | Singly cut-off π sections towers in double loop | |
| CN210858200U (en) | Single-loop multipurpose tower | |
| CN201332250Y (en) | Tangent tower in shape of cathead of same-tower and three-circuit transmission line | |
| CN110374390B (en) | 500 KV vertical-arrangement double-circuit compact type 'NOT' type conversion strain tower | |
| CN200961372Y (en) | Branch pole of quadruple-circuit transmission line on the same pole | |
| CN210598363U (en) | 220kV and 66kV thoughtlessly press four return circuit tangent towers | |
| CN213710597U (en) | 500 KV double-loop vertically-arranged narrow-base steel pipe corner tower | |
| CN114278138B (en) | Branch crossing tower and method for branching crossing double return electric circuit into single loop |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |