CN111593931A - 330kV/110kV thoughtlessly presses narrow base steel pipe of four return circuits tower that dangles - Google Patents
330kV/110kV thoughtlessly presses narrow base steel pipe of four return circuits tower that dangles Download PDFInfo
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- CN111593931A CN111593931A CN202010524248.3A CN202010524248A CN111593931A CN 111593931 A CN111593931 A CN 111593931A CN 202010524248 A CN202010524248 A CN 202010524248A CN 111593931 A CN111593931 A CN 111593931A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 152
- 239000010959 steel Substances 0.000 title claims abstract description 152
- 238000010276 construction Methods 0.000 claims abstract description 35
- 239000000463 material Substances 0.000 claims description 31
- 239000000725 suspension Substances 0.000 claims description 11
- 238000007906 compression Methods 0.000 claims description 8
- 239000012212 insulator Substances 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims 1
- 238000003780 insertion Methods 0.000 claims 1
- 238000011161 development Methods 0.000 abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 16
- 229910052742 iron Inorganic materials 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 6
- 238000013461 design Methods 0.000 description 3
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
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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
- E04H12/22—Sockets or holders for poles or posts
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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
- E04H12/24—Cross arms
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- Civil Engineering (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
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- Wood Science & Technology (AREA)
- Suspension Of Electric Lines Or Cables (AREA)
Abstract
The utility model provides a narrow basic steel pipe of 330kV 110kV thoughtlessly press four return circuits tower that dangles, including the steel construction body of the tower, the bottom of steel construction body of the tower sets up steel construction tower leg, the top of steel construction body of the tower sets up one deck steel construction ground wire cross arm, steel construction tower below the steel construction ground wire cross arm sets up six layers of steel construction wire cross arms on one's body, six layers of steel construction wire cross arms are including upper portion three-layer wire cross arm and the lower part three-layer wire cross arm that separately arranges from top to bottom, two returns 330kV wires are hung to upper portion three-layer wire cross arm in the body of the tower left and right sides, two returns 110kV wires are hung to lower part three-layer wire cross arm in the body of the tower left and right sides, be close to the. The invention greatly reduces the corridor width of the line and solves the problem of tension of the line corridor in urban planning areas and suburban areas. The occupied area of the line is reduced, the investment is saved, and the urban construction development environment can be well coordinated.
Description
Technical Field
The invention relates to a transmission tower structure, in particular to a 330kV/110kV mixed-voltage four-loop narrow-base steel pipe suspension tower.
Background
In recent years, as the size of cities is increased, the amount of electricity used in cities is also increased sharply, and power transmission lines need to be laid in greenbelts or towns and run in parallel with existing old lines due to the limitation of line corridors. 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 projects of 110kV and above, particularly double-loop and multi-loop projects, 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 and economical (more than 30% of tower materials are saved).
Disclosure of Invention
The invention aims to provide a 330kV/110kV mixed-voltage four-loop narrow-base steel pipe suspension tower aiming at the problem that the floor occupation requirement of a high-voltage transmission iron tower is contradictory to urban planning, so that the corridor of a transmission line is reduced to the maximum extent, and the floor occupation area is reduced.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a narrow basic steel pipe of 330kV 110kV thoughtlessly press four return circuits tower that dangles, including the steel construction body of the tower, the bottom of steel construction body of the tower sets up steel construction tower leg, the top of steel construction body of the tower sets up one deck steel construction ground wire cross arm, steel construction tower below the steel construction ground wire cross arm sets up six layers of steel construction wire cross arms on one's body, six layers of steel construction wire cross arms are including upper portion three-layer wire cross arm and the lower part three-layer wire cross arm that separately arranges from top to bottom, two returns 330kV wires are hung to upper portion three-layer wire cross arm in the body of the tower left and right sides, two returns 110kV wires are hung to lower part three-layer wire cross arm in the body of the tower left and right sides, be close to the.
As a preferable scheme of the invention, I-shaped insulator strings are hung at the end parts of the steel structure ground wire cross arm and the six-layer steel structure lead wire cross arm.
As a preferable scheme of the invention, the end parts of the steel structure ground wire cross arm are symmetrically provided with ground wire hanging points for hanging the ground wire or the optical cable, and the end parts of the six-layer steel structure wire cross arm are symmetrically provided with wire hanging points for hanging the wires along the left side and the right side of the tower body.
As a preferable scheme of the invention, the ground wire hanging point and the ground wire and the lead wire hanging point and the lead wire are connected through hardware fittings.
As a preferred scheme of the invention, the steel structure tower body consists of a main support rod, an angle steel inclined material, an angle steel auxiliary material and a connecting plate, wherein the angle steel inclined material, the angle steel auxiliary material and the connecting plate are used for connecting the main support rod; each main supporting rod is composed of a plurality of steel pipe main materials, and the steel pipe main materials are connected end to end through flanges.
As a preferred scheme of the invention, the steel structure ground wire cross arm and the six-layer steel structure wire cross arm are connected with the main support rod through the inserting plate.
As a preferable scheme of the invention, the main support rod is made of Q345 steel tubes, and the steel structure ground wire cross arm, the steel structure wire cross arm, the angle steel inclined material and the angle steel auxiliary material are made of Q345 or Q235 angle steel.
As a preferred scheme of the invention, 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 triangular, and the upper plane and the lower plane are rectangular or trapezoidal.
Compared with the prior art, the invention has the following beneficial effects: through set up six layers of steel construction wire cross arms on the steel construction tower body, hang the line with the tower with two circuit of 330kV two-circuit and two circuit of 110kV, greatly reduced the corridor width of circuit, solved the nervous problem of circuit corridor in cities and towns planning district and suburbs area. The root opening 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 tower head height of the suspension tower is 40m, the standard nominal height is 36m, the total height of the whole tower is 76m, the root opening is about 1/8-1/4 of the full height according to the design of a conventional iron tower, and at least 10m is needed.
Furthermore, the end parts of the steel structure ground wire cross arm are symmetrically provided with ground wire hanging points, the end parts of the six-layer steel structure wire cross arm are symmetrically provided with wire hanging points along the left side and the right side of the tower body, and the cross arms are bilaterally symmetrical, so that the stress balance can be ensured.
Furthermore, the steel structure tower body, the steel structure ground wire cross arm and the steel structure wire cross arm are respectively processed by steel pipes and angle steel, and the steel pipes and the angle steel are designed in a mixed mode, so that the characteristics of each material are fully exerted, and the investment of the body is reduced to the maximum extent.
Furthermore, each main support rod of the steel structure tower body is composed of a plurality of steel pipe main materials, the steel pipe main materials are connected end to end through flanges, a steel structure ground wire cross arm and a six-layer steel structure wire cross arm are connected with the main support rods through inserting plates, the flanges and the inserting plates are adopted for connection, the connection is safe and reliable, the processing is easy, the construction is convenient, and the appearance is attractive and elegant.
Drawings
FIG. 1 is a single line diagram of a 330kV/110kV mixed-voltage four-loop narrow-base steel tube suspension tower of the invention;
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.
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-foundation steel tube suspension tower comprises a steel structure tower body 4 composed of four main supporting rods, wherein a layer of steel structure ground wire cross arm 1 and a six-layer steel structure wire cross arm are sequentially arranged on the main supporting rods from the top of the tower downwards, wherein the upper three-layer wire cross arm 2 symmetrically suspends two 330kV loop wires on the left and right sides of the tower body, the lower three-layer wire cross arm 3 symmetrically suspends two 110kV loop wires on the left and right sides of the tower body, and the ground wire cross arm and the wire cross arm are all connected with the tower body.
The tower head height of the 330kV/110kV mixed-voltage four-loop narrow-base steel pipe suspension tower is 40m, the standard nominal height is 36m, the total height of the whole tower is 76m, the root opening is 1/8-1/4 of the total height according to the design of a conventional iron tower, at least 10m is needed, and due to the limitation of topography, the root opening is calculated to be 3 m-4 m through structure adjustment, so that the occupied area of the narrow-base steel pipe tower is greatly reduced, and the limitation of the height and the root opening ratio in the relevant specifications of the narrow-base tower of the power transmission line in China is broken through.
I-shaped insulator strings are hung on the end parts of the steel structure ground wire cross arm 1 and the six layers of steel structure wire cross arms.
The end parts of the steel structure ground wire cross arm 1 are symmetrically provided with ground wire hanging points used for hanging a ground wire or an optical cable, and the end parts of the six layers of steel structure wire cross arms are symmetrically provided with wire hanging points used for hanging wires along the left side and the right side of the tower body.
The ground wire hanging point and the ground wire and the wire hanging point and the wire are connected through hardware fittings.
The steel structure tower body 4 consists of a main support rod, an angle steel inclined material, an angle steel auxiliary material and a connecting plate, wherein the angle steel inclined material, the angle steel auxiliary material and the connecting plate are used for connecting the main support rod; each main supporting rod is composed of a plurality of steel pipe main materials, and the steel pipe main materials are connected end to end through flanges. The steel structure ground wire cross arm 1 and the six-layer steel structure wire cross arm are connected with the main support rod through the inserting plates. The main supporting rod is made of Q345 steel tubes, and the steel structure ground wire cross arm 1, the steel structure wire cross arm, the angle steel inclined material and the angle steel auxiliary material are made of Q345 or Q235 angle steel.
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 triangular, and the upper plane and the lower plane are rectangular or trapezoidal.
The invention hangs the 330kV two-circuit line and the 110kV two-circuit line on the same tower, greatly reduces the corridor width of the line, and solves the problem of the tension of the line corridor in urban planning areas and suburban areas. 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 is stressed reasonably: the cross arms are bilaterally symmetrical and are balanced in stress.
The type is beautiful: the tower body, the ground wire cross arm and the wire cross arm are respectively processed by steel pipes and angle steel, and a method of mixed design of the steel pipes and the angle steel is adopted, so that the characteristics of each material are fully exerted, and the investment of the tower body is reduced to the maximum extent.
Safe and reliable: each main support rod of the steel structure tower body is composed of a plurality of steel pipe main materials, the steel pipe main materials are connected end to end through flanges, a steel structure ground wire cross arm and a six-layer steel structure wire cross arm are connected with the main support rods through inserting plates, the flanges and the inserting plates are adopted for connection, 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 only a preferred embodiment of the present invention and is not intended to limit the present invention in any way, and it will be understood by those skilled in the art that several simple modifications and substitutions can be made without departing from the spirit and principle of the present invention, and these obvious modifications and substitutions also fall within the protection scope of the appended claims.
Claims (8)
1. The utility model provides a narrow base steel pipe of 330kV 110kV thoughtlessly presses four return circuits tower that dangles which characterized in that: including steel construction body of tower (4), the bottom of steel construction body of tower (4) sets up steel construction tower leg (5), the top of steel construction body of tower (4) sets up one deck steel construction ground wire cross arm (1), set up six layers of steel construction wire cross arms on steel construction body of tower (4) of steel construction ground wire cross arm (1) below, six layers of steel construction wire cross arms include upper portion three-layer wire cross arm (2) and lower part three-layer wire cross arm (3) that separately arrange from top to bottom, upper portion three-layer wire cross arm (2) hang two times 330kV wire in body left and right sides, lower part three-layer wire cross arm (3) hang two times 110kV wire in the body of tower left and right sides, be close to the slope of steel construction body of tower (4) of lower floor cross arm department once, the tower root is opened for 3m ~ 4 m.
2. The 330kV/110kV mixed-compression four-circuit narrow-base steel pipe suspension tower of claim 1, which is characterized in that: i-shaped insulator strings are hung at the end parts of the steel structure ground wire cross arm (1) and the six-layer steel structure wire cross arm.
3. The 330kV/110kV mixed-compression four-circuit narrow-base steel pipe suspension tower of claim 1, which is characterized in that: the end parts of the steel structure ground wire cross arms (1) are symmetrically provided with ground wire hanging points used for hanging a ground wire or an optical cable, and the end parts of the six layers of steel structure wire cross arms are symmetrically provided with wire hanging points used for hanging wires along the left side and the right side of the tower body.
4. The 330kV/110kV mixed-compression four-circuit narrow-base steel pipe suspension tower of claim 3, which is characterized in that: the ground wire hanging point and the ground wire and the wire hanging point and the wire are connected through hardware fittings.
5. The 330kV/110kV mixed-compression four-circuit narrow-base steel pipe suspension tower of claim 1, which is characterized in that: the steel structure tower body (4) consists of a main support rod, an angle steel inclined material, an angle steel auxiliary material and a connecting plate, wherein the angle steel inclined material, the angle steel auxiliary material and the connecting plate are used for connecting the main support rod; each main supporting rod is composed of a plurality of steel pipe main materials, and the steel pipe main materials are connected end to end through flanges.
6. The 330kV/110kV mixed-compression four-circuit narrow-base steel pipe pendant tower of claim 5, characterized in that: the steel structure ground wire cross arm (1) and the six-layer steel structure wire cross arm are connected with the main support rod through the insertion plate.
7. The 330kV/110kV mixed-compression four-circuit narrow-base steel pipe pendant tower of claim 5, characterized in that:
the main supporting rod is made of Q345 steel tubes, and the steel structure ground wire cross arm (1), the steel structure wire cross arm, the angle steel inclined material and the angle steel auxiliary material are made of Q345 or Q235 angle steel.
8. The 330kV/110kV mixed-compression four-circuit narrow-base steel pipe suspension 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 triangular, and the upper plane and the lower plane are rectangular or trapezoidal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010524248.3A CN111593931A (en) | 2020-06-10 | 2020-06-10 | 330kV/110kV thoughtlessly presses narrow base steel pipe of four return circuits tower that dangles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010524248.3A CN111593931A (en) | 2020-06-10 | 2020-06-10 | 330kV/110kV thoughtlessly presses narrow base steel pipe of four return circuits tower that dangles |
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| Publication Number | Publication Date |
|---|---|
| CN111593931A true CN111593931A (en) | 2020-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010524248.3A Pending CN111593931A (en) | 2020-06-10 | 2020-06-10 | 330kV/110kV thoughtlessly presses narrow base steel pipe of four return circuits tower that dangles |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU545738A1 (en) * | 1975-06-24 | 1977-02-05 | Северо-Западное Отделение Ордена Октябрьской Революции Всесоюзного Государственного Проектно-Изыскательского И Научно-Исследовательского Института Энергетических Систем И Электрических Сетей "Энергосетьпроект" | Multi-chain transmission pole |
| JP3345386B2 (en) * | 2000-01-26 | 2002-11-18 | 中部電力株式会社 | Relay type elevated construction method for steel towers and elevated guide mechanism |
| CN2713704Y (en) * | 2004-05-26 | 2005-07-27 | 江苏省电力公司常州供电公司 | Four circuit steel tube rod for electric power transmission lines |
| CN203097398U (en) * | 2013-03-07 | 2013-07-31 | 河北省电力勘测设计研究院 | 220kV/110kV four-circuit narrow-base steel tube tower |
| CN203613859U (en) * | 2013-11-26 | 2014-05-28 | 国家电网公司 | 1,000kV/220kV UHVAC (Ultra-High Voltage Alternating Current) same-tower four-loop tension support |
| CN204691375U (en) * | 2015-06-10 | 2015-10-07 | 中国能源建设集团湖南省电力设计院有限公司 | The narrow base steel tube tower of a kind of 220kV tetra-return cable terminal |
| CN205502701U (en) * | 2016-04-07 | 2016-08-24 | 中国能源建设集团陕西省电力设计院有限公司 | 750kV and 330kV thoughtlessly press 0~20 angle tower in four return circuits |
| CN209924556U (en) * | 2019-04-29 | 2020-01-10 | 福建永福电力设计股份有限公司 | 220kV and 110kV mixed-compression four-loop narrow-base steel pipe strain tower |
-
2020
- 2020-06-10 CN CN202010524248.3A patent/CN111593931A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU545738A1 (en) * | 1975-06-24 | 1977-02-05 | Северо-Западное Отделение Ордена Октябрьской Революции Всесоюзного Государственного Проектно-Изыскательского И Научно-Исследовательского Института Энергетических Систем И Электрических Сетей "Энергосетьпроект" | Multi-chain transmission pole |
| JP3345386B2 (en) * | 2000-01-26 | 2002-11-18 | 中部電力株式会社 | Relay type elevated construction method for steel towers and elevated guide mechanism |
| CN2713704Y (en) * | 2004-05-26 | 2005-07-27 | 江苏省电力公司常州供电公司 | Four circuit steel tube rod for electric power transmission lines |
| CN203097398U (en) * | 2013-03-07 | 2013-07-31 | 河北省电力勘测设计研究院 | 220kV/110kV four-circuit narrow-base steel tube tower |
| CN203613859U (en) * | 2013-11-26 | 2014-05-28 | 国家电网公司 | 1,000kV/220kV UHVAC (Ultra-High Voltage Alternating Current) same-tower four-loop tension support |
| CN204691375U (en) * | 2015-06-10 | 2015-10-07 | 中国能源建设集团湖南省电力设计院有限公司 | The narrow base steel tube tower of a kind of 220kV tetra-return cable terminal |
| CN205502701U (en) * | 2016-04-07 | 2016-08-24 | 中国能源建设集团陕西省电力设计院有限公司 | 750kV and 330kV thoughtlessly press 0~20 angle tower in four return circuits |
| CN209924556U (en) * | 2019-04-29 | 2020-01-10 | 福建永福电力设计股份有限公司 | 220kV and 110kV mixed-compression four-loop narrow-base steel pipe strain tower |
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Application publication date: 20200828 |
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