CN110778201B - Installation and erection method of high-pressure tower - Google Patents
Installation and erection method of high-pressure tower Download PDFInfo
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- CN110778201B CN110778201B CN201911083931.1A CN201911083931A CN110778201B CN 110778201 B CN110778201 B CN 110778201B CN 201911083931 A CN201911083931 A CN 201911083931A CN 110778201 B CN110778201 B CN 110778201B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/02—Structures made of specified materials
- E04H12/08—Structures made of specified materials of metal
- E04H12/10—Truss-like structures
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/34—Arrangements for erecting or lowering towers, masts, poles, chimney stacks, or the like
- E04H12/344—Arrangements for lifting tower sections for placing additional sections under them
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Abstract
The invention discloses a high-voltage tower and an installation and erection method, wherein the high-voltage tower comprises tower legs, a tower body and a tower head, and the high-voltage tower forms a vertical high-voltage tower structure by stacking the tower body on the tower legs and then stacking the tower head on the tower body; the high-pressure tower is characterized in that the tower body is composed of a group of tower body units, the maximum sectional area of each tower body unit connected with a tower leg is smaller than the minimum sectional area of each tower leg, the minimum sectional area of each tower body unit at the lower part of each two adjacent tower body units is larger than the maximum sectional area of each tower body unit placed at the upper part of each tower body unit, an electric lifter is further arranged on the high-pressure tower, and a lifting chain is arranged on the electric lifter and can be fixed on each tower body unit and used for lifting the tower body units in the vertical direction through the electric lifter. The designed working method is simple and easy to implement, the working difficulty is reduced, and the installation efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of high-pressure tower installation, and particularly relates to a high-pressure tower. The invention also relates to a method for installing and erecting the high-voltage tower.
Background
With the rapid development of national economy in China, the living standard of people is gradually improved, and the electrical load is promoted to rapidly increase, so that the voltage level of a high-voltage wire is continuously increased, the number of transmission lines is increased, more and more crossed spans are formed, and the rapid development of the power industry also leads to more and more high-voltage wire towers. The high-voltage line tower is large in size, multiple large mechanical devices are often required to work in a combined mode to complete erection of the high-voltage line tower, workload is large, and tasks are heavy, so that the invention provides a novel method for installing and erecting the high-voltage line tower.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects, the invention aims to provide the high-voltage tower which is simple in structure, reasonable in design, easy to produce, convenient to transport and disassemble in a split structure, reliable in performance and capable of ensuring the stability of high-voltage wire erection. The invention also provides a working method of the high-voltage tower, the working principle is simple and easy to implement, the crane does not need to lift the whole high-voltage line tower, the occupied area is small, the production efficiency is improved, and the method is suitable for industrial large-scale application.
The technical scheme is as follows: a high-pressure tower comprises tower legs, a tower body and a tower head, wherein the tower body is stacked on the tower legs, and the tower head is stacked on the tower body to form a vertical high-pressure tower structure; the high-pressure tower is characterized in that the tower body is composed of a group of tower body units, the maximum sectional area of each tower body unit connected with a tower leg is smaller than the minimum sectional area of each tower leg, the minimum sectional area of each tower body unit at the middle lower part of each two adjacent tower body units is larger than the maximum sectional area of each tower body unit placed at the upper part of each tower body unit, an electric lifter is further arranged on the high-pressure tower, each electric lifter is connected with a hanging chain, each hanging chain can be fixed on each tower body unit, and each tower body unit is lifted in the vertical direction through the electric lifter. The high-pressure tower adopts a sectional structural design, changes the traditional integral installation mode in an installation site, adopts a split connection mode, connects the tower body units on the tower legs in a sectional mode, combines the integral tower body through the sectional tower body units, and then places the tower head on the tower body to finish the installation of the high-pressure tower.
Further, in the high-pressure tower, the topmost tower body unit of the high-pressure tower is pyramid-shaped. The pyramid-shaped topmost tower body unit is adopted, so that the tower heads can be conveniently installed on two opposite surfaces, and the structure is designed according to the installation requirement of the high-voltage line.
Further, in the high-pressure tower, the electric elevator is provided with a support frame. When erectting the body of a tower unit, the accessible erects the support frame on the tower leg, and further when erectting the body of a tower unit, the support frame is dismantled and is got off to install on the body of a tower unit, the mounting bracket is installed on the upper end of tower leg or body of a tower unit, just so can guarantee when promoting the body of a tower unit, promotes the body of a tower unit to the assigned position.
Further, in the high-pressure tower, the tower head is composed of tower head units, and the tower head units are respectively connected to the tower body unit at the upper end of the high-pressure tower. The tower body unit is installed with the tower head in convenient later stage to the block stand alone type tower head unit that sets up, and the inside is whole lifts by crane, has increased the work degree of difficulty.
Further, a method for installing and erecting a high-voltage tower is characterized in that: the method comprises the following steps:
1) processing the tower legs into a structure with an opening on one surface;
2) transporting the tower body unit connected with the tower legs to the central position in the tower legs from the openings of the tower legs;
3) fixing the hoisting chains at the lower end of the tower body unit in a crossed manner;
4) pulling the hoisting chain through the electric lifter;
5) lifting the tower body unit from the upper openings of the tower legs by the lifting chains;
6) fixedly connecting the lower end part of the tower body unit with the upper end parts of the tower legs by bolts;
7) mounting an electric hoist to an upper end portion of the tower unit;
8) the electric lifter puts the lifting chain back to the ground;
9) conveying the second section of the tower body unit to the central position in the tower leg from the opening of the tower leg;
10) repeating the steps 3) -9) to finish the fixed connection of the tower body;
11) hoisting the tower head by a crawler crane and installing the tower head on the top of the tower body;
12) and welding the bearing rods at the opening positions of the tower legs to the tower legs.
The method for installing and erecting the high-voltage tower does not need to integrally lift the high-voltage tower, reduces the installation difficulty of the high-voltage tower, and can complete the installation of the tower legs and the tower body only by the simple electric lifter, the lifting chain and other conveying equipment when the high-voltage tower is integrally lifted because the high-voltage tower body is huge in shape and is lifted by the crane, and finally the tower head is lifted by the crawler crane, so that the lifting difficulty is small.
Further, a method for installing and erecting a high-voltage tower is characterized in that: the method comprises the following steps: 13) and square steel is welded at the corner of two diagonal lines of the tower leg, and a positioning groove is arranged at the intersection point of the two square steel in the tower leg.
The square steel is convenient for placing the tower body unit in the tower legs, the center positions of the tower body unit and the tower legs are overlapped, and therefore the tower body unit can be smoothly lifted out from the opening of the tower legs when being lifted.
Further, a method for installing and erecting a high-voltage tower is characterized in that: the method comprises the following steps: 14) and square steel is welded on the corners of two diagonal lines of the tower body unit, and a positioning bulge is arranged at the intersection point of the two square steel in the tower leg.
The positioning protrusions are welded on the square steel arranged on the tower body unit, so that the positioning protrusions are conveniently matched with the positioning grooves of the square steel on the tower legs, and the accuracy of the position of the tower body unit for hoisting is guaranteed.
Further, a method for installing and erecting a high-voltage tower is characterized in that: the method comprises the following steps: 15) respectively hoisting the tower head units of the tower head to the positions of the tower body units to be connected through the crawler crane;
16) installing a tower head unit at the lower part, firstly installing a tower head unit at the left side, and then connecting the tower head unit at the right side which is symmetrical with the tower head unit;
17) and (3) installing the tower head unit at the top, installing the tower head unit at the left firstly, and connecting the tower head unit at the right symmetrically with the tower head unit.
Further, a method for installing and erecting a high-voltage tower is characterized in that: the method comprises the following steps: 18) the stay cords are provided at four corners of the upper end surface of the tower leg, and after the tower unit is mounted, the stay cord positions are moved to the four corners of the tower unit.
Further, a method for installing and erecting a high-voltage tower is characterized in that: the method comprises the following steps: 19) and (3) fixing the pulling rope in the step 18) on the ground through a winch, and adjusting the degree of tightness of stretching through the winch.
The working method of the high-pressure tower is simple and easy in working principle, requires less manpower, improves the production efficiency, and is suitable for large-scale application.
The technical scheme shows that the invention has the following beneficial effects: the high-pressure tower has the advantages of simple structure, reasonable design and easy production. The working method of the high-voltage tower is simple and easy in working principle, and the sectional high-voltage line tower design is adopted, so that the transportation and installation of the high-voltage line tower are facilitated, and the working mode of integrally hoisting the high-voltage tower is changed. The tower body unit is lifted by the crane in sequence to form an integral tower body, the working difficulty is low, and finally the independent tower head unit is mounted on the tower body, so that the working method is easy to master.
Drawings
FIG. 1 is a schematic diagram of a high pressure column according to the present invention;
FIG. 2 is a schematic view of a high pressure column according to the present invention with the column body connected to the column legs;
FIG. 3 is a schematic structural diagram of a high-pressure column provided with a stay wire according to the invention;
fig. 4 is a schematic view of the positioning of a high-pressure mast body unit according to the invention on the mast legs.
In the figure: 1 tower leg, 2 tower bodies, 21 tower body units, 3 tower heads, 31 tower head units, 4 lifters, 5 hoisting chains and 6 support frames.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Examples
The high-voltage tower shown in fig. 1-4 comprises tower legs 1, a tower body 2 and a tower head 3, wherein the high-voltage tower forms a vertical high-voltage tower structure by stacking the tower body 2 on the tower legs 1 and then stacking the tower head 3 on the tower body 2; the tower body 2 is composed of a group of tower body units 21, the maximum sectional area of each tower body unit 21 connected with each tower leg 1 is smaller than the minimum sectional area of each tower leg 1, the minimum sectional area of each tower body unit 21 at the middle lower part of each two adjacent tower body units 21 is larger than the maximum sectional area of each tower body unit 21 placed at the upper part of each two adjacent tower body units 21, an electric elevator 4 is further arranged on the high-pressure tower, a hanging chain 5 is connected onto each electric elevator 4, and each hanging chain 5 can be fixed onto each tower body unit 21 and can lift the tower body unit 21 in the vertical direction through the electric elevator 4. Wherein, the topmost tower body unit 21 of the high-pressure tower is pyramid-shaped. In addition, the electric elevator 4 is provided with a support frame 6, and the height of the support frame 6 is increased along with the increase of the height. In addition, the tower head 3 is composed of tower head units 31, and the tower head units 31 are respectively connected to the tower body unit 21 at the upper end of the high-voltage tower, so that the installation is convenient, and the installation difficulty is reduced.
A method for installing and erecting a high-voltage tower comprises the following steps:
1) processing the tower legs 1 into a structure with an opening on one surface;
2) transporting a tower body unit 21 connected with the tower legs 1 to the central position in the tower legs 1 from the opening of the tower legs 1;
3) fixing the hoisting chain 5 at the lower end of the tower unit 21 in a crossed manner;
4) the hoisting chain 5 is pulled by the electric lifter 4;
5) the hoisting chains 5 lift the tower unit 21 from the upper openings of the tower legs 1;
6) fixedly connecting the lower end part of the tower body unit 21 with the upper end parts of the tower legs 1 by bolts;
7) mounting the electric hoist 4 to the upper end portion of the tower unit 21;
8) the electric lifter 4 puts the lifting chain 5 back to the ground;
9) conveying a second section of the tower body unit 21 from the opening of the tower leg 1 to the central position in the tower leg 1;
10) repeating the steps 3) -9) to finish the fixed connection of the tower body 2;
11) hoisting the tower head 3 by a crawler crane and installing the tower head at the top of the tower body 2;
12) welding a bearing rod at the opening position of the tower leg 1 to the tower leg 1;
13) and square steel is welded at the corners of two diagonal lines of the tower leg 1, and a positioning groove is arranged at the intersection point of the two square steel in the tower leg.
The installation and erection method of the high-voltage tower further comprises the following steps:
14) welding square steel on two diagonal corners of the tower body unit 21, wherein the two square steel are welded
Positioning bulges are arranged at the cross points in the tower legs;
15) respectively hoisting the tower head units 31 of the tower heads 3 to the positions of the tower body units 21 to be connected through the crawler cranes;
16) installing the tower head unit 31 at the lower part, firstly installing the tower head unit 31 at the left side, and then connecting the tower head unit 31 at the right side which is symmetrical with the tower head unit 31;
17) installing a tower head unit 31 at the top, installing the tower head unit 31 at the left, and connecting the tower head unit 31 at the right symmetrical to the tower head unit 31;
18) firstly, arranging pull ropes on four corners of the upper end surface of the tower leg 1, and moving the positions of the pull ropes to the four corners of the tower body unit 21 after the tower body unit 21 is installed;
19) and (3) fixing the pulling rope in the step 18) on the ground through a winch, and adjusting the degree of tightness of stretching through the winch.
According to the method for setting the high-pressure tower, the built support frame 6 is used, the electric elevator 4 with the lifting chain 5 is arranged on the upper surface of the support frame, each single tower body unit 21 is lifted to the uppermost surface one by one, the lowermost end of the lifted tower body unit 21 is connected with the uppermost end surface of the installed high-pressure tower through bolts and connecting plates until the installation of the uppermost tower body unit 21 is completed, in order to ensure safety, in the process of gradually adding the tower body units 21, pull ropes and winches are arranged to fix four corners of the top of the built high-pressure tower, and finally, the split tower head unit 31 is installed on the tower body unit 21 through a crane or a crawler crane, so that the installation of the whole high-pressure tower is completed.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the present invention, and these modifications should also be construed as the protection scope of the present invention.
Claims (1)
1. A method for installing and erecting a high-pressure tower comprises tower legs (1), a tower body (2) and a tower head (3), wherein the high-pressure tower is formed into a vertical high-pressure tower structure by stacking the tower body (2) on the tower legs (1) and then stacking the tower head (3) on the tower body (2); wherein the tower body (2) is composed of a group of tower body units (21), the maximum sectional area of the tower body units (21) connected with the tower legs (1) is smaller than the minimum sectional area of the tower legs (1), the minimum sectional area of the tower body units (21) at the middle lower part of every two adjacent tower body units (21) is larger than the maximum sectional area of the tower body units (21) placed at the upper part of the tower body units, an electric lifter (4) is further arranged on the high-pressure tower, a lifting chain (5) is connected onto the electric lifter (4), the lifting chain (5) can be fixed onto the tower body units (21) and lifts the tower body units (21) along the vertical direction through the electric lifter (4), the tower body unit (21) at the top end of the high-pressure tower is in a pyramid shape, a support frame (6) is arranged on the electric lifter (4), and the tower head (3) is composed of a tower head unit (31), the tower head units (31) are respectively connected to the tower body unit (21) at the upper end of the high-pressure tower;
the method is characterized in that: the method comprises the following steps:
1) processing the tower legs (1) into a structure with an opening on one surface;
2) transporting a tower body unit (21) connected with the tower legs (1) to the central position in the tower legs (1) from the opening of the tower legs (1);
3) a hoisting chain (5) is fixed at the lower end of the tower body unit (21) in a crossing way;
4) the hoisting chain (5) is pulled through the electric lifter (4);
5) the hoisting chain (5) lifts the tower body unit (21) from the upper openings of the tower legs (1);
6) fixedly connecting the lower end part of the tower body unit (21) with the upper end parts of the tower legs (1) by bolts;
7) mounting an electric hoist (4) to an upper end portion of a tower unit (21);
8) the electric lifter (4) puts the lifting chain (5) back to the ground;
9) conveying a second section of tower body unit (21) to the central position in the tower leg (1) from the opening of the tower leg (1);
10) repeating the steps 3) -9) to finish the fixed connection of the tower body (2);
11) the tower head (3) is hoisted by a crawler crane and is arranged at the top of the tower body (2);
12) welding a bearing rod at the opening position of the tower leg (1) to the tower leg (1);
13) square steel is welded on the corner of two diagonal lines of the tower leg (1), and a positioning groove is arranged at the intersection point of the two square steel in the tower leg;
14) square steel is welded on the corners of two diagonal lines of the tower body unit (21), and a positioning bulge is arranged at the intersection point of the two square steel in the tower leg;
15) hoisting the tower head units (31) of the tower heads (3) to the positions of the tower body units (21) to be connected through the crawler cranes respectively;
16) a tower head unit (31) at the lower part is installed, the tower head unit (31) at the left side is installed firstly, and then the tower head unit (31) at the right side which is symmetrical with the tower head unit is connected;
17) installing a tower head unit (31) at the top, installing the tower head unit (31) at the left, and connecting the tower head unit (31) at the right which is symmetrical with the tower head unit;
18) firstly, arranging pull ropes on four corners of the upper end surface of each tower leg (1), and moving the positions of the pull ropes to the four corners of the tower body unit (21) after the tower body unit (21) is installed;
19) and (3) fixing the pulling rope in the step 18) on the ground through a winch, and adjusting the degree of tightness of stretching through the winch.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911083931.1A CN110778201B (en) | 2019-11-07 | 2019-11-07 | Installation and erection method of high-pressure tower |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911083931.1A CN110778201B (en) | 2019-11-07 | 2019-11-07 | Installation and erection method of high-pressure tower |
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| CN110778201A CN110778201A (en) | 2020-02-11 |
| CN110778201B true CN110778201B (en) | 2021-05-14 |
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| CN104594696A (en) * | 2014-12-19 | 2015-05-06 | 国家电网公司 | Construction method for assembling 1000 kV tangent suspension tower through double holding poles |
| CN205296966U (en) * | 2015-12-27 | 2016-06-08 | 山西聚海龙电通科技股份有限公司 | Transmission line iron tower |
| CN205502700U (en) * | 2016-01-24 | 2016-08-24 | 江苏常峰电力设备股份有限公司 | A iron tower for setting up high -tension transmission wire |
| CN106285177A (en) * | 2016-08-12 | 2017-01-04 | 上海电力设计院有限公司 | The assemble method of aerial line steel tower |
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2019
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09228690A (en) * | 1996-02-23 | 1997-09-02 | Shimizu Corp | Construction method of steel tower |
| CN1458377A (en) * | 2003-05-28 | 2003-11-26 | 浙江省电力设计院 | Mounting method for large span power transmission tower |
| CN102022019A (en) * | 2010-11-03 | 2011-04-20 | 河南省电力公司洛阳供电公司 | Method for split tower erection of lines in complex terrain |
| CN202187601U (en) * | 2011-05-17 | 2012-04-11 | 王海兵 | Single-twisting-grinder double-pole iron tower erecting device of high-voltage power transmission line |
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