CN212562725U - Strain tower of 330kV/110kV mixed-compression four-loop narrow base steel pipe - Google Patents
Strain tower of 330kV/110kV mixed-compression four-loop narrow base steel pipe Download PDFInfo
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- CN212562725U CN212562725U CN202021062248.8U CN202021062248U CN212562725U CN 212562725 U CN212562725 U CN 212562725U CN 202021062248 U CN202021062248 U CN 202021062248U CN 212562725 U CN212562725 U CN 212562725U
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Abstract
The utility model discloses a 330kV/110kV mixed-compression four-loop narrow-base steel pipe strain tower, which comprises a steel structure tower body, wherein steel structure tower legs are arranged at the bottom of the steel structure tower body, six layers of steel structure wire cross arms are arranged on the steel structure tower body, the six layers of steel structure wire cross arms comprise an upper three-layer wire cross arm and a lower three-layer wire cross arm which are separately arranged from top to bottom, two loops of 330kV wires are hung on the left side and the right side of the tower body by the upper three-layer wire cross arm, two loops of 110kV wires are hung on the left side and the right side of the tower body by the lower three-layer wire cross arm, and; a layer of steel structure ground wire cross arm is arranged at the top of the steel structure tower body; the root opening of the strain tower of the narrow base steel pipe is 3-4 m. The utility model discloses greatly reduced the corridor width of circuit, reduced circuit area, practiced thrift the investment, the iron tower component is arranged succinctly rationally, passes the power route clear, has satisfied the requirement of four lines of walking simultaneously in the urban green belt.
Description
Technical Field
The utility model relates to a transmission tower, concretely relates to 330kV 110kV thoughtlessly presses narrow base steel pipe strain insulator tower in four return circuits.
Background
In recent years, the scale of cities is gradually enlarged, the electricity consumption of cities is sharply increased, and due to the limitation of line corridors, power transmission lines need to be laid in green belts or towns and run in parallel with the existing old lines. The traditional iron tower with the angle steel structure has the root opening which is difficult to meet the requirements, and in order to reduce land acquisition as much as possible and coordinate with urban development planning, a four-loop narrow-base tower is urgently needed to be designed.
The application of the narrow-base tower can well solve the problem of contradiction between the occupation of land of the urban high-voltage transmission iron tower and urban planning, and simultaneously can solve the problem of overlarge line body investment caused by adopting a cable scheme. The line corridor in the urban planning area and the suburban area is tense, the line mostly passes through the congested sections of the paths such as the urban green belt, the sidewalk and the like, for the line engineering of 66kV and below, a steel pipe rod and a concrete rod are usually adopted, the pipe diameter is small (less than 1 m), the implementation is easy, the economical efficiency is good, and the requirements of the line corridor can be met. For line engineering of 110kV and above, particularly double-loop and multi-loop engineering, due to large load, the steel pipe rod can meet the requirement of a corridor for land occupation, but the pipe diameter is large (about 2 m), the wall thickness is increased greatly, and the economical efficiency is poor.
Compared with an angle steel tower, the narrow-base steel pipe tower has a simple structure and an attractive appearance, and is more harmonious with the urban environment; compared with a steel pipe rod, the narrow-base steel pipe tower is transparent, attractive, economical (more than 30% of tower materials are saved), and has a plurality of advantages.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to the big problem of high voltage transmission tower area among the above-mentioned prior art, provide a 330kV 110kV thoughtlessly presses four narrow base steel pipe strain insulator towers in return circuit, economy is pleasing to the eye, does benefit to the urban planning to safe and reliable.
In order to achieve the above object, the utility model adopts the following technical scheme:
a330 kV/110kV mixed-compression four-loop narrow-base steel pipe strain tower comprises a steel structure tower body, steel structure tower legs are arranged at the bottom of the steel structure tower body, six layers of steel structure wire cross arms are arranged on the steel structure tower body, the six layers of steel structure wire cross arms comprise an upper three-layer wire cross arm and a lower three-layer wire cross arm which are separately arranged from top to bottom, two loops of 330kV wires are hung on the left side and the right side of the tower body by the upper three-layer wire cross arm, two loops of 110kV wires are hung on the left side and the right side of the tower body by the lower three-layer wire cross arm, and each loop; a layer of steel structure ground wire cross arm is arranged at the top of the steel structure tower body; the root opening of the strain tower of the narrow base steel pipe is 3-4 m; the end part of the steel structure ground wire cross arm is provided with a ground wire hanging point for hanging a ground wire or an optical cable, the end parts of the six layers of steel structure wire cross arms are respectively provided with a wire hanging point for hanging a wire and a jumper wire hole for hanging a jumper wire along the left side and the right side of the steel structure tower body, and the ground wire hanging point is connected with the ground wire, the wire hanging point is connected with the wire, and the jumper wire hole is connected with the jumper wire through hardware fittings; the wire hanging points adopt double hanging points.
Preferably, the hardware is connected with the steel structure ground wire cross arm and the six-layer steel structure lead wire cross arm through hardware bolts, and the penetrating direction of the hardware bolts is perpendicular to the cross arm.
As a preferred, the main part of steel construction body of the tower is formed by the steel pipe through metal flange end to end, steel construction ground wire cross arm and six layers of steel construction wire cross arms pass through the steel pipe of picture peg and steel construction body of the tower and link to each other.
Preferably, the main body of the steel structure tower body is formed by Q345 steel pipes, and the inclined material, the steel structure ground wire cross arm and the six-layer steel structure wire cross arm of the steel structure tower body are made of Q345 or Q235 angle steel.
Preferably, the section of the steel structure tower body is square; the front surface of the steel structure ground wire cross arm is triangular, and the upper plane and the lower plane are rectangular or trapezoidal; the front surfaces of the six layers of steel structure wire cross arms are all triangular, and the upper plane and the lower plane are both trapezoidal or rectangular.
Preferably, the trapezoidal wire hanging frame used for constructing the double hanging points is added at the triangular end part of the upper three-layer wire cross arm.
Compared with the prior art, the utility model discloses following beneficial effect has: set up six layers of steel construction wire cross arms on the steel construction tower body, wherein, upper portion three-layer wire cross arm hangs two times 330kV wire in the tower body left and right sides, and lower part three-layer wire cross arm hangs two times 110kV wire in the tower body left and right sides, and every time wire is arranged perpendicularly, hangs the line with two times lines of 330kV and two times lines of 110kV with the tower, has greatly reduced the corridor width of circuit, has solved the nervous problem of the circuit corridor in urban planning district and suburb area. The utility model discloses the root of iron tower is opened for 3m ~ 4m, has reduced more than 50% than conventional angle-steel tower, has reduced circuit area, has practiced thrift the investment, can be fine with city construction development environment coordination. The utility model discloses an iron tower component arranges succinctly rationally, passes the power route clear, has satisfied the requirement of four circuit lines simultaneously in the town green belt, has filled the technical blank.
Furthermore, the main body of the steel structure tower body of the utility model is composed of a plurality of steel pipe main materials, which can meet the stress requirements of the main materials while reducing the root opening of the narrow-base steel pipe tower; wherein the end to end of the main steel pipe material is connected through flanges, so that the welding amount of the main steel pipe material connection can be effectively reduced. The main support rods are connected with each other through the angle steel inclined material, the angle steel auxiliary material and the connecting plate respectively, the cross arm is connected with the main support rods through the inserting plates, so that the main support rods can be effectively and firmly connected with the angle steel inclined material, the angle steel auxiliary material and the cross arm.
Drawings
FIG. 1 is a single line diagram of a strain tower of a 330kV/110kV mixed-voltage four-loop narrow base steel pipe of the utility model;
in the drawings: 1-steel structure ground wire cross arm; 2-upper three-layer wire cross arm; 3-lower three-layer wire cross arm; 4-a steel structure tower body; 5-steel structure tower legs; 6-wire suspension point.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Referring to fig. 1, the 330kV/110kV mixed-compression four-loop narrow-base steel pipe strain tower of the present invention comprises a steel structure tower body 4, the steel structure tower body 4 is composed of four main supporting steel pipes, the main supporting steel pipes are sequentially provided with a layer of steel structure ground wire cross arm 1 and six layers of steel structure wire cross arms from the top of the tower downwards, wherein two loops of 330kV wires are suspended on the left and right sides of the tower body by the upper three-layer wire cross arm 2, two loops of 110kV wires are suspended on the left and right sides of the tower body by the lower three-layer wire cross arm 3, and each loop of the wires is vertically arranged; the ground wire cross arm and the lead wire cross arm are all connected with the tower body. The tower body is changed into a slope at one time at the position close to the cross arm at the lowest layer, and the root of the iron tower is 3-4 m; the tip setting of steel construction ground wire cross arm 1 is used for hanging the ground wire of ground wire or optical cable and hangs the point, the tip of six layers of steel construction wire cross arms sets up the wire that is used for hanging the wire respectively along the left and right sides of steel construction tower body 4 and hangs the point and be used for hanging the jump hole of wire jumper, between ground wire hanging point and the ground wire, between wire hanging point and the wire and between jump hole and the wire jumper all be connected through the gold utensil, the gold utensil passes through the gold utensil bolt and is connected with steel construction ground wire cross arm 1 and steel construction wire cross arm, the wearing of gold utensil bolt is perpendicular with the cross arm.
The main part of steel structure body of tower 4 is formed by the steel pipe through metal flange end to end, and steel construction ground wire cross arm 1 and six layers of steel construction wire cross arms pass through the picture peg and link to each other with the steel pipe of steel structure body of tower 4. The main part of steel structure body of the tower 4 chooses Q345 steel pipe to constitute, connects through angle steel oblique material, angle steel subsidiary material and connecting plate respectively between the steel pipe of body of the tower main part, and steel structure body of the tower 4's oblique material, steel construction ground wire cross arm 1 and six layers of steel construction wire cross arms choose Q345 or Q235 angle steel to make.
The section of the steel structure tower body 4 is square; the front surface of the steel structure ground wire cross arm 1 is triangular, and the upper plane and the lower plane are rectangular or trapezoidal; the front surfaces of the six layers of steel structure wire cross arms are all triangular, and the upper plane and the lower plane are both trapezoidal or rectangular. The upper three-layer wire cross arm 2 for suspending 330kV is additionally provided with a trapezoidal wire hanging frame for constructing double hanging points at the end part of a triangle.
The utility model discloses the tower head height of the narrow base steel pipe strain insulator tower of four return circuits of 330kV 110kV thoughtlessly presses is 39.8m, and the standard is exhaled high and is 24m, and the total height of whole tower is 63.8m, according to conventional iron tower design, and the root is opened for about 1/8 ~ 1/4 of full height, needs 8m at least, because the restriction of topography, the utility model discloses set up the root and count about 3m ~ 4m, not only greatly reduced the area of narrow base steel pipe tower, still broken through the restriction that the ratio was opened to height and root in the relevant norm of china's transmission line narrow base tower.
The utility model discloses a mix and press narrow base steel pipe strain insulator tower in four return circuits, with two return circuits of 330kV and two return circuits of 110kV with the tower string line, greatly reduced the corridor width of circuit, solved the circuit corridor nervous problem in cities and towns planning area and suburb area. The root of the iron tower is 3-4 m, which is reduced by more than 50% compared with the conventional angle steel tower, reduces the occupied area of the line, saves the investment, and can be well coordinated with the development environment of urban construction. The iron tower member is simple and reasonable in arrangement, the force transmission path is clear, the method of steel pipe and angle steel mixed design is adopted, the characteristics of each material are fully exerted, and the investment of the iron tower member is reduced to the maximum extent. Meanwhile, the flange and the inserting plate are connected, so that the connection is safe and reliable, the processing is easy, the construction is convenient, and the appearance is attractive and elegant.
The above description is given for the purpose of illustrating the present invention in more detail with reference to specific preferred embodiments, and it is not to be considered that the present invention is limited thereto, but rather that the person skilled in the art can make several simple deductions or substitutions without departing from the basic idea of the present invention, and that these deductions and substitutions shall be regarded as belonging to the scope of the present invention as defined by the appended claims.
Claims (6)
1. The utility model provides a narrow basic steel pipe strain insulator tower of four return circuits of 330kV 110kV thoughtlessly presses which characterized in that: the tower comprises a steel structure tower body (4), steel structure tower legs (5) are arranged at the bottom of the steel structure tower body (4), six layers of steel structure wire cross arms are arranged on the steel structure tower body (4), the six layers of steel structure wire cross arms comprise an upper three-layer wire cross arm (2) and a lower three-layer wire cross arm (3) which are separately arranged up and down, two loops of 330kV wires are hung on the left side and the right side of the tower body by the upper three-layer wire cross arm (2), two loops of 110kV wires are hung on the left side and the right side of the tower body by the lower three-layer wire cross arm (3), and each loop of the wires are; a layer of steel structure ground wire cross arm (1) is arranged at the top of the steel structure tower body (4); the root opening of the strain tower of the narrow base steel pipe is 3-4 m; the end part of the steel structure ground wire cross arm (1) is provided with a ground wire hanging point for hanging a ground wire or an optical cable, the end parts of the six layers of steel structure wire cross arms are respectively provided with a wire hanging point for hanging a wire and a jumper wire hole for hanging a jumper wire along the left side and the right side of the steel structure tower body (4), the ground wire hanging point and the ground wire, the wire hanging point and the wire and the jumper wire are connected through hardware fittings, and the wire hanging point adopts double hanging points.
2. The 330kV/110kV mixed-voltage four-loop narrow-base steel tube strain tower of claim 1, which is characterized in that: the hardware fitting is connected with the steel structure ground wire cross arm (1) and the six-layer steel structure lead wire cross arm through a hardware fitting bolt, and the hardware fitting bolt penetrates to be perpendicular to the cross arm.
3. The 330kV/110kV mixed-voltage four-loop narrow-base steel tube strain tower of claim 1, which is characterized in that:
the main part of steel construction body of tower (4) is formed through end to end metal flange by the steel pipe, steel construction ground wire cross arm (1) and six layers of steel construction wire cross arms pass through the steel pipe of picture peg and steel construction body of tower (4) and link to each other.
4. The 330kV/110kV mixed-voltage four-loop narrow-base steel tube strain tower of claim 3, which is characterized in that:
the main body of the steel structure tower body (4) is formed by Q345 steel pipes, and the inclined material of the steel structure tower body (4), the steel structure ground wire cross arm (1) and the six-layer steel structure wire cross arm are made of Q345 or Q235 angle steel.
5. The 330kV/110kV mixed-voltage four-loop narrow-base steel tube strain tower of claim 1, which is characterized in that: the section of the steel structure tower body (4) is square; the front surface of the steel structure ground wire cross arm (1) is triangular, and the upper plane and the lower plane are rectangular or trapezoidal; the front surfaces of the six layers of steel structure wire cross arms are all triangular, and the upper plane and the lower plane are both trapezoidal or rectangular.
6. The 330kV/110kV mixed-voltage four-loop narrow-base steel tube strain tower of claim 5, which is characterized in that: the trapezoidal wire hanging frame used for constructing double hanging points is additionally arranged at the triangular end part of the upper three-layer wire cross arm (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021062248.8U CN212562725U (en) | 2020-06-10 | 2020-06-10 | Strain tower of 330kV/110kV mixed-compression four-loop narrow base steel pipe |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021062248.8U CN212562725U (en) | 2020-06-10 | 2020-06-10 | Strain tower of 330kV/110kV mixed-compression four-loop narrow base steel pipe |
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| CN212562725U true CN212562725U (en) | 2021-02-19 |
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| CN202021062248.8U Active CN212562725U (en) | 2020-06-10 | 2020-06-10 | Strain tower of 330kV/110kV mixed-compression four-loop narrow base steel pipe |
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