CN112886511B - Pipe gallery type jumper wire supporting structure, power transmission system and method - Google Patents

Pipe gallery type jumper wire supporting structure, power transmission system and method Download PDF

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Publication number
CN112886511B
CN112886511B CN202110009504.XA CN202110009504A CN112886511B CN 112886511 B CN112886511 B CN 112886511B CN 202110009504 A CN202110009504 A CN 202110009504A CN 112886511 B CN112886511 B CN 112886511B
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China
Prior art keywords
wire
jumper
sleeve
clamping
support
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Application number
CN202110009504.XA
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Chinese (zh)
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CN112886511A (en
Inventor
罗汉武
钱文晓
祝永坤
张军
王景朝
刘会斌
王延伟
李昉
郭金刚
刘胜春
周立宪
李博
张小明
孟杰
游溢
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
China Electric Power Research Institute Co Ltd CEPRI
Electric Power Research Institute of State Grid Xinjiang Electric Power Co Ltd
Electric Power Research Institute of State Grid Eastern Inner Mongolia Power Co Ltd
State Grid Eastern Inner Mongolia Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
China Electric Power Research Institute Co Ltd CEPRI
Electric Power Research Institute of State Grid Xinjiang Electric Power Co Ltd
Electric Power Research Institute of State Grid Eastern Inner Mongolia Power Co Ltd
State Grid Eastern Inner Mongolia Power Co Ltd
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Application filed by State Grid Corp of China SGCC, China Electric Power Research Institute Co Ltd CEPRI, Electric Power Research Institute of State Grid Xinjiang Electric Power Co Ltd, Electric Power Research Institute of State Grid Eastern Inner Mongolia Power Co Ltd, State Grid Eastern Inner Mongolia Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN202110009504.XA priority Critical patent/CN112886511B/en
Publication of CN112886511A publication Critical patent/CN112886511A/en
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G7/00Overhead installations of electric lines or cables
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02Details
    • H02G3/04Protective tubing or conduits, e.g. cable ladders or cable troughs
    • H02G3/0462Tubings, i.e. having a closed section
    • H02G3/0481Tubings, i.e. having a closed section with a circular cross-section

Abstract

The invention provides a pipe gallery type supporting structure for a jumper, which comprises: the wire guide comprises a sleeve and a plurality of wire supports connected with the sleeve; the wire bracket is used for fixing a plurality of wires of the jumper wire in the sleeve; when the wire clamp is installed, a wire is fixed on a wire clamp of the wire support, and the wire clamp holds the wire under the action of the built-in spring; sleeving a sleeve of the pipe gallery type jumper supporting mechanism on the outer side of the lead, fixing the sleeve and a fixed support of the suspension support together through a fastener, and finally covering an end sealing cover and fastening the end sealing cover through the fastener; the electric characteristic of effectual assurance wire jumper department can be stabilized, phenomenon such as discharge that reduces because of the wire jumper irregularity arouses promotes wire jumper department electric property.

Description

Pipe gallery type jumper wire supporting structure, power transmission system and method
Technical Field
The invention relates to a pipe gallery type jumper wire supporting structure for a jumper wire string of an overhead transmission line, a power transmission system and a power transmission method.
Background
The conductive device connected with the strain clamp of the leads on two sides of the strain tower is called a jumper wire of the overhead transmission line. The jumper string is used for ensuring that the electrified lead keeps enough electric distance from the conductive part of the tower.
At present, the ultrahigh voltage engineering construction in China enters a comprehensive acceleration construction stage, all levels of matched power grids develop rapidly, and in the process of all levels of power grid construction, the proposal of novel hardware fittings and novel construction methods plays a vital role in engineering construction and technology development. At present, many jumper wires are single conductors in low-voltage grades, such as 110kV transmission lines, the jumper wires are directly pulled up by a jumper wire string structure similar to an I-shaped suspension string structure, and due to the difference of operation levels of constructors, the shape of part of the jumper wires is similar to a W shape after construction.
At present, due to the problems of construction and the like, the jumper of a part of jumper strings in a built project is irregular (namely, the jumper strings are not in a straight state and are not stretched to a similar straight state), so that the cage type jumper strings are often subjected to the phenomena of discharging and the like.
Disclosure of Invention
In order to solve the technical problem, the invention designs a pipe gallery type jumper supporting structure aiming at the defect that the shape of the jumper is not standard, and a wire is wrapped in an aluminum pipe, so that the shape of the wire is restrained, the wire can be stably and effectively held, and the electrical distance between the jumper and an iron tower is ensured. According to the pipe gallery type supporting structure designed by the invention, the wire is suspended in the pipe gallery type supporting mechanism, so that the jumper wire does not need to be adjusted to a quasi-linear state intentionally during construction, and the electrical characteristic of the jumper wire string is improved.
In a first aspect, the present invention provides a piping lane type supporting structure for a jumper, comprising: the wire guide comprises a sleeve and a plurality of wire supports connected with the sleeve; the wire support is used for fixing a plurality of wires of the jumper wire in the sleeve.
In a second aspect, the present invention further provides a method for using the piping lane type support structure for wire jumper according to the first aspect, including the steps of:
when the device is installed, the lead is fixed on the wire clamp of the lead bracket, and the wire clamp holds the lead under the action of the built-in spring;
the sleeve of the pipe gallery type jumper supporting mechanism is sleeved on the outer side of the wire, and is fixed with the fixing support of the suspension support through a fastener, and finally the end cover is covered and fastened through the fastener.
In a third aspect, the present invention provides a power transmission system comprising a jumper for a power transmission line and a pipe rack support structure for the jumper according to the first aspect, the pipe rack support structure being connected to the jumper for the power transmission line.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention designs a pipe gallery type jumper supporting structure, wherein a wire bracket is used for fixing a plurality of wires of a jumper in a sleeve, so that the electrical characteristics of the jumper can be stably and effectively ensured, and the phenomena of discharge and the like caused by irregular (namely not straight state and not stretched to a quasi-straight state) jumper are reduced.
2. According to the invention, the external sleeve is the pipe gallery type aluminum pipe, and the wire fixing structure is fixed in the aluminum pipe, so that the wire is fixed in the pipe gallery type aluminum pipe, the phenomena of discharging at a jumper wire position and the like caused by the bending of the jumper wire due to construction and the like are avoided, and the electrical performance at the jumper wire string position is improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
Figure 1 is a schematic diagram of an electrical transmission system including a pipe rack jumper support structure of the present invention;
FIG. 2 is a schematic structural view of the piping lane jumper support mechanism of the present invention;
FIG. 3 is a schematic structural view of the end cover of the pipe rack type jumper support mechanism of the present invention;
FIG. 4 is a schematic structural view of a wire suspension bracket of the pipe rack type jumper wire supporting mechanism of the present invention;
wherein, 1, iron tower cross arm; 2. an insulator; 3. a jumper wire; 4. a pipe gallery type jumper wire supporting mechanism; 41. an aluminum sleeve; 42. sealing the end cover; 43. a wire guide hole of the end-sealing cover; 44. wire clamps; 45. a support frame; 46. and fixing the bracket.
The specific implementation mode is as follows:
the invention is further described with reference to the following figures and examples.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
Example 1
As shown in fig. 1, the present invention provides a piping lane type supporting structure for a jumper, comprising: the wire guide comprises a sleeve and a plurality of wire supports connected with the sleeve; the wire support is used for fixing a plurality of wires of the jumper wire in the sleeve. The direction of the lead wire fixed by the lead wire bracket is parallel to the axial direction of the sleeve.
Further, the sleeve pipe includes a plurality of aluminum pipe, the sleeve pipe is the pipe gallery formula structure, the pipe gallery formula structure sets up longitudinal connecting elements for between the adjacent aluminum pipe, like longeron or truss, and the spatial structure who constitutes is the pipe gallery formula structure.
Further, the cross section of the sleeve is square, oval or polygonal, preferably circular; the sleeve is split type, is formed by a plurality of circular arc pipes in a splicing mode.
Furthermore, the sleeve is formed by splicing two semicircular tubes.
Furthermore, the wire support comprises a support frame, and a plurality of wire clamps and a plurality of fixing supports which are connected with the support frame.
The support frame is connected with the wire clamp and the fixing support through a plurality of connecting rods, mounting holes are formed in two ends of each connecting rod, and the connecting rods can be connected with the support frame, the wire clamp and the fixing support through the mounting holes;
furthermore, the connecting rod can be hinged, fixedly connected or clamped with the support frame, the wire clamp and the fixed support through the mounting hole; the installation angles of the connecting rod, the supporting frame, the wire clamp and the fixing support are all adjustable.
Furthermore, the support frame is circular, circular arc, rectangular or polygonal, and is circular as the preferred scheme, and a plurality of mounting grooves matched and connected with the connecting rod are arranged on the outer surface of the circular ring.
Furthermore, the wire clamp comprises an adjusting rod and a clamping structure, the adjusting rod can adjust the clamping force and the clamping size of the clamping structure through telescopic motion, and the clamping structure comprises two circular arc-shaped first clamping hands and two circular arc-shaped second clamping hands; the first clamping hand is connected with the adjusting rod through a crank connecting rod mechanism to realize the curvilinear motion of the set range of the first clamping hand; the second clamping hand is fixedly connected with one end of the adjusting rod, and the position of the second clamping hand is fixed, so that the clamping size and the clamping force of the clamping mechanism are changed through the position adjustment of the first clamping hand.
As another implementation scheme, the clamping structure comprises a first clamping hand and a second clamping hand which are in circular arc shapes; the first clamping hand is connected with the adjusting rod through a curve chute mechanism to realize the movement within a set range; the second clamping hand is fixedly connected with one end of the adjusting rod and is fixed in position.
As another implementation scheme, the clamping structure comprises a first clamping hand and a second clamping hand which are in circular arc shapes; the first clamping hand is connected with the adjusting rod through a cam mechanism to realize the movement within a set range; the second clamping hand is fixedly connected with one end of the adjusting rod, and the position of the second clamping hand is fixed.
The adjusting rod comprises a mounting plate with a groove, the bottom surface of the groove of the mounting plate is connected with one end of a spring, and the other end of the spring is connected with the first clamping structure. The other end of the mounting plate, which is opposite to the groove, is connected with one end of a connecting rod, and the other end of the connecting rod is connected with the support frame; the connecting angle of the mounting plate and the connecting rod is adjusted through the bolt and the nut, and the position of the mounting plate is fixed after the nut is screwed down.
The wire clamp is characterized by further comprising a sealing end cover connected with the sleeve, wherein the sealing end cover is of a hemispherical shell structure, a plurality of wire through holes are formed in the surface of the shell, each wire through hole is parallel to the direction of a fixed wire of the wire support, and the wire through holes are coaxial with round holes formed by clamping hands of a clamping mechanism of the wire clamp of the wire support.
This kind of structure has adopted piping lane formula design, is different from conventional type of structure, and this kind of type of structure's core lies in that the outside is piping lane formula aluminum pipe, and the aluminum pipe internal fixation has wire fixed knot to inside being fixed in piping lane formula aluminum pipe with the wire jumper, avoid because of reasons such as construction lead to the wire jumper crooked and lead to phenomenon such as wire jumper department discharge to take place, promote wire jumper department electrical property. The electric characteristic of effectual assurance wire jumper department can be stabilized, phenomenon such as discharge that reduction arouses because of the wire jumper is irregular (be promptly not in the same direction as straight state, because do not stretch to similar straight line state).
Example 2
A use method of the pipeline corridor type supporting structure for the jumper wire, which is provided by the embodiment, comprises the following steps:
according to the difference of voltage class, the length of wire jumper is different, and the length of piping lane formula wire jumper supporting mechanism is also different promptly, has decided the quantity of internally mounted's wire suspension support also to be different simultaneously.
During installation, the jumper wire is fixed on the wire clamp of the wire support, the wire clamp holds the jumper wire under the action of the built-in spring, the wire clamp is convenient to construct, and the number of the wire clamps is determined according to different voltage grades, namely the splitting number of the jumper wire.
Then, sleeving a sleeve, namely an aluminum pipe (split type, formed by two semicircular aluminum pipes) of the pipe gallery type jumper supporting mechanism on the outer side of the jumper, fixing the sleeve and a fixed support of a suspension support together through a fastener, and finally covering an end sealing cover and fastening the cover by using the fastener; the fastener can be a bolt, a pin, a screw or a buckle.
According to the pipe gallery type supporting structure designed by the invention, the wire is suspended in the pipe gallery type supporting mechanism, so that the jumper wire does not need to be adjusted to a quasi-linear state intentionally during construction, and the electrical characteristic of the jumper wire string is improved.
In other embodiments, the present application further provides:
the utility model provides a power transmission system, includes power transmission line wire jumper and above-mentioned embodiment the wire jumper be with piping lane formula bearing structure, piping lane formula bearing structure and power transmission line wire jumper connection.
Still include iron stand cross arm and insulator, the iron stand cross arm is connected with the insulator, and the power transmission line wire jumper of insulator below is connected with piping lane formula bearing structure, promotes the electrical characteristic of string department that dangles.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.

Claims (7)

1. The utility model provides a piping lane formula bearing structure for wire jumper which characterized in that includes: the wire guide comprises a sleeve and a plurality of wire supports connected with the sleeve; the wire bracket is used for fixing a plurality of wires of the jumper wire in the sleeve;
the sleeve comprises a plurality of aluminum pipes, and is of a pipe gallery type structure;
the wire bracket comprises a support frame, a plurality of wire clamps and a plurality of fixing brackets, wherein the wire clamps and the fixing brackets are connected with the support frame; the wire clamp comprises an adjusting rod and a clamping structure, and the adjusting rod can adjust the clamping force and the clamping size of the clamping structure through telescopic motion;
the adjusting rod comprises a mounting plate with a groove, the bottom surface of the groove of the mounting plate is connected with one end of the spring, and the other end of the spring is connected with the clamping structure; the other end of the mounting plate, which is opposite to the groove, is connected with one end of a connecting rod, and the other end of the connecting rod is connected with the support frame; the connecting angle of the mounting plate and the connecting rod is adjusted through the bolt and the nut, and the position of the mounting plate is fixed after the nut is screwed down.
2. The piping lane type support structure for jumper of claim 1, wherein the sleeve is split type and is formed by splicing a plurality of circular arc-shaped pipes.
3. The piping lane type supporting structure for wire jumper of claim 1, wherein the supporting frame is connected with the wire clamp and the fixing bracket through a plurality of connecting rods.
4. The piping lane support structure for a jumper of claim 1, wherein the clamping structure comprises two first and second clamping hands in the shape of circular arcs; the first clamping hand is connected with the adjusting rod through a crank connecting rod mechanism; the second clamping hand is fixedly connected with one end of the adjusting rod.
5. The piping lane support structure for jumper of claim 1, further comprising a cap connected to the bushing, wherein the cap is a hemispherical shell structure having a plurality of wire through holes on the surface of the shell.
6. A method of using the jumper tube corridor support structure according to any one of claims 1-5, characterized by the steps of:
when the device is installed, the lead is fixed on the wire clamp of the lead bracket, and the wire clamp holds the lead under the action of the built-in spring;
sleeving a sleeve of the pipe gallery type jumper supporting mechanism on the outer side of the lead, and fixing the sleeve and a fixed support of the suspension support together through a fastener; and covering the end cover and fastening by using a fastening piece.
7. A power transmission system, comprising: a power transmission line jumper and a pipe rack support structure for the jumper as claimed in any one of claims 1 to 5, the pipe rack support structure being connected to the power transmission line jumper.
CN202110009504.XA 2021-01-05 2021-01-05 Pipe gallery type jumper wire supporting structure, power transmission system and method Active CN112886511B (en)

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CN205882635U (en) * 2016-08-08 2017-01-11 江苏双汇孚泰电气有限公司 Anchor formula damping gyration conductor spacer
CN207459659U (en) * 2017-06-16 2018-06-05 国家电网公司 Support device
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