CN217501244U - Current conversion transformer wire inlet tower - Google Patents

Abstract

The utility model discloses a change of current becomes inlet wire tower belongs to electric power engineering electric wire netting transformation technical field. A converter transformer inlet tower comprises a tower body truss, wherein the upper part of the tower body truss is provided with the converter transformer inlet truss, and the middle part of the converter transformer inlet truss is arranged on the tower body truss; the top of the tower truss is provided with a lightning conductor truss, and the middle part of the lightning conductor truss is arranged on the tower truss; the incoming line truss and the lightning conductor truss of the converter transformer are both parallel chord member trusses. The structure wind resistance can be good to can connect current conversion through single tower and become inlet wire and lightning conductor, thereby practice thrift and take up an area of.

Description

Current conversion transformer wire inlet tower

Technical Field

The utility model relates to a current conversion becomes inlet wire tower belongs to electric power engineering electric wire netting power transformation technical field.

Background

The converter station is a station established in a high-voltage direct-current transmission system for converting alternating current into direct current or converting direct current into alternating current and meeting the requirements of a power system on safety, stability and power quality. The alternating current of the sending end converter station needs to be transmitted to the converter transformer of each voltage class through the converter transformer inlet framework, and then converted into direct current. The herringbone column framework inlet wire is commonly used in the convertor station, if an extra-high voltage convertor station convertor transformer inlet wire rectangular lattice type 'pi' type framework in Chinese utility model patent CN205135076U, the framework column adopts A type uniform section steel pipe herringbone columns, the crossbeam adopts rectangular lattice type 'pi' type overhanging structure, and the framework column top plate is hinged with the rectangular crossbeam.

The conventional structure of the converter transformer wire is higher in ground clearance, about 30m-40m, larger in wind load and wire tension borne by the structure, large in occupied area and free of enough space for arranging the structure in some converter regions.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at: aiming at the problems, the converter transformer inlet wire tower is provided, the structure is good in wind resistance, and the converter transformer inlet wire and the lightning conductor can be connected through a single tower, so that the occupied area is saved.

The utility model adopts the technical scheme as follows:

a converter transformer inlet tower comprises a tower body truss, wherein the upper part of the tower body truss is provided with the converter transformer inlet truss, and the middle part of the converter transformer inlet truss is arranged on the tower body truss; the top of the tower truss is provided with a lightning conductor truss, and the middle part of the lightning conductor truss is arranged on the tower truss; the incoming line truss and the lightning conductor truss of the converter transformer are both parallel chord member trusses.

Optionally, three pairs of incoming line hanging rings are arranged at the bottom of the front side of the converter transformer incoming line truss.

Optionally, the converter transformer incoming line truss is of a lower bearing type.

Optionally, a pair of lightning conductor hanging rings is arranged at the top of the front side of the lightning conductor truss.

Optionally, the lightning conductor truss is of a deck type.

Optionally, the tower truss and/or the line-changing line-feeding truss and/or the lightning arrester truss are steel pipe trusses.

Optionally, the steel pipe truss comprises a chord member and a web member, and the web member is arranged on the chord member through a gusset plate.

Optionally, the end part of the chord member is provided with an inserting plate, and the inserting plate is arranged on the gusset plate through a bolt.

Optionally, a snap ring is arranged on the gusset plate and arranged on the chord member.

Optionally, a falling prevention device is arranged on the tower truss.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses a change of current becomes inlet wire tower, change of current becomes inlet wire and lightning conductor frame can realize through change of current on single tower inlet wire truss and lightning conductor truss, take up an area of for a short time; and adopt truss structure, the anti-wind antitorque property is good.

2. The utility model discloses a current conversion transformer inlet wire tower, through the structure of concrete current conversion transformer inlet wire truss and lightning conductor truss, can guarantee the atress requirement of current conversion transformer inlet wire tower; the installation and the disassembly are convenient through the bolt connection; through setting up anti-falling device, overhaul convenient safety.

Drawings

FIG. 1 is an overall structure diagram of a converter transformer inlet tower;

FIG. 2 is a block diagram of the converter transformer at the inlet truss;

FIG. 3 is a block diagram at the incoming line eye;

fig. 4 is a structural view at a lightning conductor truss;

fig. 5 is a structural view of a suspension loop of a lightning conductor.

The labels in the figure are: 1-tower truss, 2-converter transformer incoming truss, 3-lightning conductor truss, 4-incoming hanging ring, 5-lightning conductor hanging ring, 6-chord member, 7-web member, 8-node plate, 9-plug board, 10-bolt, 11-snap ring and 12-anti-falling device.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

A converter transformer incoming line tower, as shown in fig. 1-5, comprising a tower truss 1, wherein the upper part of the tower truss 1 is provided with a converter transformer incoming line truss 2, and the middle part of the converter transformer incoming line truss 2 is arranged on the tower truss 1; the top of the tower truss 1 is provided with a lightning conductor truss 3, and the middle part of the lightning conductor truss 3 is arranged on the tower truss 1; the current conversion incoming line truss 2 and the lightning conductor truss 3 are both parallel chord member 6 trusses.

Specifically, the tower truss 1 can be used for supporting a converter transformer incoming line truss 2 and a lightning conductor truss 3; the converter transformer inlet wire truss 2 can be used for setting a converter transformer inlet wire; the lightning conductor truss 3 can be used for arranging a lightning conductor; the parallel chord member truss can save the space of the incoming line truss 2 and the lightning conductor truss 3 of the converter transformer in the vertical direction; the converter transformer incoming line and the lightning conductor are arranged on one tower, so that the occupied area can be saved; through the integral truss structure, the wind resistance and torsion resistance are good, the rigidity is high, and the geometric characteristic is good. Further, the height of the tower truss 1 is 25m-40m, and the specific height of the tower truss 1 is calculated according to the set altitude of the converter transformer incoming tower.

As another specific embodiment, the bottom of the front side of the converter transformer incoming line truss 2 is provided with three pairs of incoming line suspension loops 4. Thereby adapting to the single-side hanging wire application and the charged distance of the converter transformer wire inlet tower. Furthermore, three pairs of inlet wire hanging rings 4 can be arranged at the bottom of the rear side of the converter transformer inlet wire truss 2, so that the wire hanging direction of the converter transformer inlet wire tower can be conveniently selected, and the whole converter transformer inlet wire tower does not need to be turned. The three pairs of inlet wire suspension loops 4 are respectively arranged at the left part, the middle part and the right part of the converter transformer inlet wire truss 2. In a specific implementation, the specific position of the incoming hanging ring 4 is calculated according to the set altitude of the converter transformer incoming tower.

As another specific embodiment, the incoming converter transformer truss 2 is a through-type. Through the truss setting of holding down formula, can guarantee to let the web member 7 that the mounted position of inlet wire link 4 corresponds be drawn to guarantee the atress requirement. Wherein, the lower web member 7 of the incoming truss 2 of the converter transformer is longer than the upper web member 7 of the incoming truss 2 of the converter transformer.

As another specific embodiment, a pair of wire hanging rings 5 is provided on the top of the front side of the wire truss 3. Thereby adapting to the single-side hanging wire application and the charged distance of the converter transformer wire inlet tower. Furthermore, the bottom of the rear side of the converter transformer incoming line truss 2 can also be provided with a pair of lightning conductor hanging rings 5, so that the line hanging direction of the converter transformer incoming line tower can be conveniently selected, and the whole converter transformer incoming line tower does not need to be steered. The overhead ground wire hanging ring 5 is respectively arranged at the left end and the right end of the overhead ground wire truss 3.

As another specific embodiment, the lightning conductor truss 3 is a deck type. Through the truss setting of deck formula, can guarantee to let the web member 7 that the mounted position of lightning conductor link 5 corresponds be drawn to guarantee the atress requirement. Wherein, the upper web member 7 of the incoming truss 2 of the converter transformer is longer than the lower web member 7 of the incoming truss 2 of the converter transformer.

As another specific embodiment, the tower truss 1 and/or the line-changing line-feeding truss and/or the lightning arrester truss is a steel pipe truss. Because the stress of the converter transformer inlet tower is much larger than that of a common power transmission iron tower, the stress of the converter transformer inlet tower can be ensured through the steel pipe truss. Further, the tower body truss 1, the line-changing inlet wire truss and the lightning arrester truss are all steel pipe trusses.

In another specific embodiment, the steel pipe truss comprises a chord member 6 and a web member 7, and the web member 7 is provided on the chord member 6 through a gusset plate 8. The various rods that can meet at the nodes are joined together by the gusset plates 8 and are easy to install. Furthermore, the chord members 6 in the same steel pipe truss can be designed to be different in size according to the stress requirements, and the chord members 6 and the web members 7 in the same steel pipe truss can also be designed to be different in size according to the stress requirements.

In another specific embodiment, the end of the chord 6 is provided with an insert plate 9, and the insert plate 9 is arranged on the gusset plate 8 through a bolt 10. The bolt 10 can be connected to facilitate the assembly and disassembly. Further, the inserting plate 9 is fixedly arranged on the chord member 6, the inserting plate 9 extends along the axial direction of the chord member 6, and the end face of the inserting plate 9 is in contact with the end face of the gusset plate 8. Wherein, a plurality of mounting holes are arranged on the inserting plate 9.

In another specific embodiment, a snap ring 11 is disposed on the gusset 8, and the snap ring 11 is disposed on the chord 6. The gusset 8 can be provided on the chord 6 by the snap ring 11. Further, the snap rings 11 may be provided at both end portions of the gusset plate 8, so that the entire gusset plate 8 can be fixed.

As another specific embodiment, the tower truss 1 is provided with a falling prevention device 12. Convenient and safe maintenance can be facilitated by the fall arrest device 12. Further, the anti-falling device 12 is arranged on the chord 6 of the tower truss 1.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses a change of current becomes inlet wire tower, change of current becomes inlet wire and lightning conductor frame can be realized through change of current change inlet wire truss 2 and lightning conductor truss 3 on single tower, take up an area of for a short time; and adopt parallel chord member 6 truss structure, the anti-wind antitorque performance is good.

2. The utility model discloses a current conversion transformer inlet wire tower, through the structure of concrete current conversion transformer inlet wire truss 2 and lightning conductor truss 3, can guarantee the atress requirement of current conversion transformer inlet wire tower; the bolts 10 are used for connection, so that the installation and the disassembly are convenient; through setting up anti-falling device 12, overhaul convenient safety.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

In the description of the embodiments of the present invention, it should be understood that the terms "length," "width," "vertical," "horizontal," "top," "bottom," and the like are used in the orientation or positional relationship shown in the drawings for convenience in describing the embodiments of the present invention and for simplicity in 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 therefore should not be construed as limiting the embodiments of the present invention.

Claims (10)

1. A converter transformer inlet tower is characterized in that: the tower body truss structure comprises a tower body truss (1), wherein a converter transformer inlet wire truss (2) is arranged at the upper part of the tower body truss (1), and the middle part of the converter transformer inlet wire truss (2) is arranged on the tower body truss (1); the top of the tower truss (1) is provided with a lightning conductor truss (3), and the middle part of the lightning conductor truss (3) is arranged on the tower truss (1); the current conversion incoming line truss (2) and the lightning conductor truss (3) are both parallel chord member (6) trusses.

2. The converter transformer feeder tower of claim 1, wherein: the bottom of the front side of the converter transformer incoming line truss (2) is provided with three pairs of incoming line suspension loops (4).

3. The converter transformer feeder tower of claim 2, wherein: the converter transformer incoming line truss (2) is of a lower bearing type.

4. The converter transformer feeder tower of claim 1, wherein: the top of the front side of the lightning conductor truss (3) is provided with a pair of lightning conductor hanging rings (5).

5. The converter transformer feeder tower of claim 4, wherein: the lightning conductor truss (3) is of a top bearing type.

6. The converter transformer feeder tower of claim 1, wherein: the tower body truss (1) and/or the line-changing line-feeding truss and/or the lightning arrester truss are steel pipe trusses.

7. The converter transformer feeder tower of claim 6, wherein: the steel pipe truss comprises a chord member (6) and a web member (7), wherein the web member (7) is arranged on the chord member (6) through a gusset plate (8).

8. The converter transformer feeder tower of claim 7, wherein: the end part of the chord member (6) is provided with an inserting plate (9), and the inserting plate (9) is arranged on the gusset plate (8) through a bolt (10).

9. The converter transformer feeder tower of claim 7, wherein: be equipped with snap ring (11) on gusset plate (8), snap ring (11) are located on chord member (6).

10. The converter transformer feeder tower of claim 1, wherein: and the tower truss (1) is provided with a falling prevention device (12).

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