CN209056891U - A kind of combination hardware fitting - Google Patents

A kind of combination hardware fitting Download PDF

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Publication number
CN209056891U
CN209056891U CN201821545526.8U CN201821545526U CN209056891U CN 209056891 U CN209056891 U CN 209056891U CN 201821545526 U CN201821545526 U CN 201821545526U CN 209056891 U CN209056891 U CN 209056891U
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China
Prior art keywords
annulus
grading ring
aluminum stranded
pipe mother
hardware fitting
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CN201821545526.8U
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Chinese (zh)
Inventor
王帅兵
程建伟
黄克捷
张巍
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China Southern Power Grid Co Ltd
Research Institute of Southern Power Grid Co Ltd
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China Southern Power Grid Co Ltd
Research Institute of Southern Power Grid Co Ltd
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Priority to CN201821545526.8U priority Critical patent/CN209056891U/en
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Abstract

The utility model discloses a kind of combination hardware fittings, and including connection unit and set on two pipe mothers at connection unit both ends, connection unit includes two grading ring components and connector;Grading ring component is set to one end of pipe mother, and grading ring component is used for uniform electric field;Two grading ring components are different perpendicular to the height on horizontal direction;Grading ring component includes the first annulus, the second annulus and the bracket for fixing the first annulus and the second annulus, and the first annulus and the second annulus are in closed;Connector can allow two pipe mothers to move in the horizontal direction for connecting two pipe mothers, connector by the way that deformation occurs;Connector includes at least two aluminum stranded conductors, and each aluminum stranded conductor is in bending, and the both ends of each aluminum stranded conductor are separately connected two pipe mothers, and every two aluminum stranded conductors combination is in figure of eight intersection construction.Using the utility model embodiment, it is able to achieve the flexible connection of converter station equipment room, to guarantee that change of current station equipment does not lose its basic electric property.

Description

A kind of combination hardware fitting
Technical field
The utility model relates to fitting technical field more particularly to a kind of combination hardware fittings.
Background technique
D.C. high voltage transmission due to having the characteristics that remote, large capacity, low-loss transmit electric power and economize the land resource, It is developed rapidly in recent years in China.Converter station be DC transmission engineering key components, converter station generally by Valve hall, alternating-current field and DC fields composition, there is converter valve, converter power transformer, wall bushing, breaker, disconnecting switch, ground connection to open Numerous equipment such as pass, smoothing reactor, filter reactor, support insulator, arrester and mutual inductor.Valve hall, alternating-current field and straight It is that female, fitting and connecting line realize electrical connection by pipe between each equipment in flow field, for being in high earthquake intensity region Converter station for, under accidental conditions, DC fields inner tubes is female and connection gold utensil will meet electrical, current-carrying and mechanical performance It is required that.
Under earthquake operating condition, change of current station equipment is understood since ground seismic wave function is different with the mechanical shock characteristic of itself Equipment is caused to swing in different directions, this will generate biggish relative displacement in equipment room, at this point, the spacing meeting of two equipment There is change by a relatively large margin, be but basically unchanged however, the pipe capital has the distance between two connecting pins, this leads to two connections There are biggish stress between end and institute's attached device, it is easily damaged equipment or is disconnected with corresponding equipment, so as to cause valve hall Lose its basic electric property.
Utility model content
The purpose of the utility model embodiment is to provide a kind of combination hardware fitting, is able to satisfy the big relative displacement of each equipment room and wants It asks, the flexible connection and displacement decoupling of equipment room is realized, to guarantee that change of current station equipment does not lose its basic electric property.
To achieve the above object, the utility model embodiment provides a kind of combination hardware fitting, including connection unit and is set to Two pipe mothers at the connection unit both ends, the connection unit include two grading ring components and connector;Wherein,
The grading ring component is set to one end of the pipe mother, corresponds with the pipe mother, and the grading ring component is used In uniform electric field;Two grading ring components are different perpendicular to the height on horizontal direction;
The grading ring component is including the first annulus, the second annulus and for fixing first annulus and second circle The bracket of ring, first annulus and second annulus are in closed;
The connector is female for connecting two pipes, and the connector can allow by the way that deformation occurs described in two Pipe mother moves in the horizontal direction;
The connector includes at least two aluminum stranded conductors, and each aluminum stranded conductor is in bending, each aluminum stranded conductor Both ends are separately connected two pipes mothers, and every two aluminum stranded conductor combinations are in figure of eight intersection construction, and the aluminum stranded conductor can be certainly By stretching.
Compared with prior art, combination hardware fitting disclosed by the utility model is described for connecting each equipment in converter station One end of pipe mother connects the connector, and the other end connects each equipment of the converter station;Wherein, the connector includes extremely Few two aluminum stranded conductors, every two aluminum stranded conductor combinations are in figure of eight intersection construction, and the aluminum stranded conductor can be stretched freely, thus So that the connector can allow two pipe mothers to move in the horizontal direction by the way that deformation occurs under earthquake operating condition. It solves in the prior art under earthquake operating condition, there are biggish stress between two connecting pins and institute's attached device, is easily damaged and sets It is standby or disconnected with corresponding equipment, the problem of losing its basic electric property so as to cause valve hall, it is able to satisfy each equipment Between big relative displacement requirement, the flexible connection and displacement decoupling of equipment room are realized, to guarantee that change of current station equipment does not lose it Basic electric property.
As an improvement of the above scheme, the branch is set up between first annulus and second annulus, the branch Frame is used to connect one end of the pipe mother, and the grading ring component is fixed on the pipe mother.
As an improvement of the above scheme, it is equipped with fixing piece for connecting the port of the pipe mother of the connection unit, The fixing piece is cylindrical, and the port of the fixing piece and the pipe mother, which are integrally formed, to be formed;
The grading ring component is fixed on the pipe mother by the bracket for connecting the fixing piece.
As an improvement of the above scheme, first annulus and second annulus are parallel to each other.
As an improvement of the above scheme, first annulus and second annulus is equal in magnitude.
As an improvement of the above scheme, the combination hardware fitting further includes wire clamp, and the wire clamp is set to the port of the pipe mother On, the wire clamp passes through the connection wire clamp respectively for fixing the aluminum stranded conductor, the both ends of each aluminum stranded conductor to realize It is female to connect the pipe.
As an improvement of the above scheme, the combination hardware fitting further includes support insulator, the support insulator with it is described Grading ring component corresponds, and the support insulator is connect with the fixing piece, to support the combination hardware fitting.
Detailed description of the invention
Fig. 1 is a kind of schematic perspective view of combination hardware fitting provided by the embodiment of the utility model;
Fig. 2 is the structural schematic diagram of grading ring component in a kind of combination hardware fitting provided by the embodiment of the utility model;
Fig. 3 is a kind of top view of combination hardware fitting provided by the embodiment of the utility model;
Fig. 4 is a kind of front view of combination hardware fitting provided by the embodiment of the utility model.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts Every other embodiment obtained, fall within the protection scope of the utility model.
It is a kind of schematic perspective view of combination hardware fitting provided by the embodiment of the utility model referring to Fig. 1, Fig. 1;Including Connection unit and two pipe mothers set on the connection unit both ends, the connection unit include two grading ring components and connection Part;Wherein,
The grading ring component is set to one end of the pipe mother, corresponds with the pipe mother, and the grading ring component is used In uniform electric field;
The grading ring component is including the first annulus, the second annulus and for fixing first annulus and second circle The bracket of ring, first annulus and second annulus are in closed;
The connector is female for connecting two pipes, and the connector can allow by the way that deformation occurs described in two Pipe mother moves in the horizontal direction;
The connector includes at least two aluminum stranded conductors, and each aluminum stranded conductor is in bending, each aluminum stranded conductor Both ends are separately connected two pipes mothers, and every two aluminum stranded conductor combinations are in figure of eight intersection construction, and the aluminum stranded conductor can be certainly By stretching.
Specifically, as shown in Figure 1, described two pipe mothers are respectively pipe mother 1 and pipe mother 5, described two grading ring components point Not Wei grading ring component 2 and grading ring component 4, the grading ring component 2 is set to one end of the pipe mother 1, with pipe mother 1 one One is corresponding, and the grading ring component 2 is used for uniform electric field;The connector 3 is for connecting the pipe mother 1 and the pipe mother 5, institute Stating connector 3 can allow the pipe mother 1 and the pipe mother 5 to move in the horizontal direction by the way that deformation occurs, for example lean on relatively Closely or it is relatively distant from.
The other end of the pipe mother 1 is used to connect the equipment in converter station, such as smoothing reactor;The pipe mother's 5 is another One end is used to connect the equipment in converter station, such as filter, thus will be each in the converter station by the combination hardware fitting A equipment connection.
Preferably, the aluminum stranded conductor in the connector 3 generally comprises 4~6, the aluminum stranded conductor as current-carrying conductor Particular number and type determined by the maximum current-carrying of the pipe mother.In the case where earthquake conditions do not occur, i.e., the described combination hardware fitting When under nominal situation, each aluminum stranded conductor is in serpentine, to be in " 8 " word cross knot when two aluminum stranded conductor combinations Structure, the both ends of each aluminum stranded conductor are separately connected the pipe mother 1 and the pipe mother 5.
Preferably, (the structure phase of the structure of another grading ring component 2 and grading ring component 4 by taking grading ring component 4 as an example Together), referring to fig. 2, Fig. 2 is the structural schematic diagram of grading ring component in a kind of combination hardware fitting provided by the embodiment of the utility model; The grading ring component 4 is including the first annulus 41, the second annulus 43 and for fixing first annulus 41 and second circle The bracket 42 of ring 43;Wherein,
The bracket 42 is set between first annulus 41 and second annulus 43, and the bracket 42 is for connecting institute The grading ring component 4 is fixed on the pipe mother 5 by the one end for stating pipe mother 5;First annulus 41 and second circle Ring 43 is in closed.The grading ring component 4 is used to improve the electric field strength distortion of the high voltage of junction, guarantees surrounding electricity Field distribution is uniform.
Preferably, fixing piece 6, the fixing piece 6 are equipped with for connecting the port of the pipe mother 5 of the connection unit Cylindrical, the port of the fixing piece 6 and the pipe mother 5, which are integrally formed, to be formed;The bracket 42 is for connecting the fixation The grading ring component 4 is fixed on the pipe mother 5 by part 6.
First annulus 41 and second annulus 43 are parallel to each other, first annulus 41 and second annulus 43 It is equal in magnitude, the grading ring component 2 and the grading ring component 4 are different perpendicular to the height on horizontal direction. The i.e. described grading ring component 2 and the grading ring component 4 intersection are staggered, to will not occur when relatively close under earthquake operating condition Collision.
Preferably, referring to fig. 2, the combination hardware fitting further includes wire clamp 7, and the wire clamp 7 is set to the port of the pipe mother 5 On, the wire clamp 7 is used to fix the aluminum stranded conductor (wire clamp 7 identical with female 5 structures of the pipe also is provided on the pipe mother 1), The both ends of each aluminum stranded conductor pass through the connection wire clamp 7 respectively to realize the connection pipe mother 1 and the pipe mother 5.
Preferably, the combination hardware fitting further includes support insulator, the support insulator and the grading ring component one One is corresponding, and the support insulator is connect with the fixing piece 6, to support the combination hardware fitting.
Referring to Fig. 3~4, in normal conditions, the aluminum stranded conductor horizontal length for connecting the pipe mother 1 and the pipe mother 5 is L1.
When earthquake occurs, referring to Fig. 3, when the pipe mother 1 and the pipe mother 5 are relatively distant from, the pipe mother 1 and the pipe are female 5 equipment connected are relatively distant under the action of reversed earthquake directed force F 1 and F2.At this point, by converter station equipment it is flat It moves, the pipe mother 1, the wire clamp connecting with the pipe mother 1 and the grading ring component 2 can be driven to move to the direction F1, the pipe Mother 5, the wire clamp connecting with the pipe mother 5 and the grading ring component 4 are moved to the direction F2.The aluminum stranded conductor is in horizontal distance Length can rise to 2 π r1+2d1 (assuming that data, the specific length and peace for extending aluminum stranded conductor when data reference is embodied Initial configuration when dress), i.e., the described aluminum stranded conductor can stretchable length maximum can under opposite nominal situation under this earthquake operating condition To increase by 2 π r1+2d1-L1, by adjusting the length of the aluminum stranded conductor, the equipment room that can meet under different earthquake operating condition is horizontal Relative displacement requirement.
When earthquake occurs, referring to fig. 4, pipe mother 1 and when relatively close pipe mother 5, the pipe mother 1 and the pipe are female 5 change of current station equipments connected are relatively close under the action of opposition F3 and F4.At this point, pass through the equipment of converter station Translation can drive the pipe mother 1, the wire clamp connecting with the pipe mother 1 and the grading ring component 2 to move to the direction F3, described Pipe mother 5, the wire clamp connecting with the pipe mother 5 and the grading ring component 4 are moved to the direction F4.As seen from Figure 4, described to press Ring assemblies 2 and the grading ring component 4 height in vertical direction are different, are interspersed, for the grading ring component 1, The first annulus above is d5 at a distance from the pipe mother 1, and the first annulus below is d4 at a distance from the pipe mother 1;For The grading ring component 4, the first annulus above are d4 at a distance from the pipe mother 5, the first annulus and the pipe mother 5 below Distance be d5;D3 is the height (wherein, d3 < d4-d5) in the vertical direction of first annulus.Due to d4 > d5+d3, When the equipment that the pipe mother 1 and the pipe mother 5 are connected is relatively close under this earthquake operating condition, the grading ring component can guarantee 2 and the grading ring component 4 do not contact, the grading ring component 2 and the grading ring component 4 close to each other will not be damaged.
Under this earthquake operating condition (the pipe mother 1 and pipe mother 5 are relatively close), the aluminum stranded conductor is long in horizontal distance Degree can be compressed to L1-r2 (assuming that data, when specific compressed data is with reference to specific implementation when the length and installation of aluminum stranded conductor Initial configuration), wherein r2 is the outer radius of second annulus, i.e., the described aluminum stranded conductor can be under this earthquake operating condition relatively just It is that r2 can meet under different earthquake operating condition by adjusting its length that stretchable length maximum, which can reduce distance, under normal operating condition Equipment room horizontal relative displacement requirement.
The utility model embodiment realizes the flexible connection of equipment room by aluminum stranded conductor fitting and displacement decouples, and solves Horizontal big displacement demand under the conditions of high earthquake in DC fields between equipment.Aluminum stranded conductor is that the connection of equipment room mentions in the horizontal direction Sufficiently large displacement demand has been supplied, it can be achieved that stretching out and being inwardly compressed;Grading ring component is guaranteeing articulated part electricity Field distribution is uniform, meets engine request, and guarantees not occur when left and right sides grading ring component is close to each other in the horizontal direction Contact;Wire clamp secures aluminum stranded conductor, and completes the connection between pipe mother, and pipe mother is for connecting distinct device.
Compared with prior art, combination hardware fitting disclosed by the utility model solves in the prior art under earthquake operating condition, There are biggish stress between two connecting pins and institute's attached device, it is easily damaged equipment or is disconnected with corresponding equipment, thus The problem of causing valve hall to lose its basic electric property, it is able to satisfy the big relative displacement requirement of each equipment room, realizes equipment room Flexible connection and displacement decoupling, to guarantee that change of current station equipment does not lose its basic electric property.
The above is preferred embodiments of the present invention, it is noted that for the ordinary skill of the art For personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these are improved and profit Decorations are also considered as the protection scope of the utility model.

Claims (7)

1. a kind of combination hardware fitting, which is characterized in that including connection unit and set on two pipe mothers at the connection unit both ends, institute Stating connection unit includes two grading ring components and connector;Wherein,
The grading ring component is set to one end of the pipe mother, corresponds with the pipe mother, and the grading ring component is for equal Even electric field;Two grading ring components are different perpendicular to the height on horizontal direction;
The grading ring component includes the first annulus, the second annulus and for fixing first annulus and second annulus Bracket, first annulus and second annulus are in closed;
The connector is female for connecting two pipes, and the connector can allow two pipes female by the way that deformation occurs It moves in the horizontal direction;
The connector includes at least two aluminum stranded conductors, and each aluminum stranded conductor is in bending, and each aluminum stranded conductor is in " S " Shape, the both ends of each aluminum stranded conductor are separately connected two pipes mothers, and every two aluminum stranded conductor combinations intersect in the figure of eight Structure, the aluminum stranded conductor can be stretched freely.
2. combination hardware fitting as described in claim 1, which is characterized in that the branch is set up in first annulus and described second Between annulus, the bracket is used to connect one end of the pipe mother, and the grading ring component is fixed on the pipe mother.
3. combination hardware fitting as claimed in claim 2, which is characterized in that for connecting the end of the pipe mother of the connection unit Mouth is equipped with fixing piece, and the fixing piece is cylindrical, and the port of the fixing piece and the pipe mother, which are integrally formed, to be formed;
The grading ring component is fixed on the pipe mother by the bracket for connecting the fixing piece.
4. combination hardware fitting as described in claim 1, which is characterized in that first annulus and second annulus are mutually flat Row.
5. combination hardware fitting as described in claim 1, which is characterized in that the size phase of first annulus and second annulus Deng.
6. combination hardware fitting as described in claim 1, which is characterized in that the combination hardware fitting further includes wire clamp, and the wire clamp is set In on the port of the pipe mother, for the wire clamp for fixing the aluminum stranded conductor, the both ends of each aluminum stranded conductor pass through company respectively The wire clamp is connect to realize that the connection pipe is female.
7. combination hardware fitting as claimed in claim 3, which is characterized in that the combination hardware fitting further includes support insulator, described Support insulator and the grading ring component correspond, and the support insulator is connect with the fixing piece, described in support Combination hardware fitting.
CN201821545526.8U 2018-09-20 2018-09-20 A kind of combination hardware fitting Active CN209056891U (en)

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108963925A (en) * 2018-09-20 2018-12-07 南方电网科学研究院有限责任公司 A kind of combination hardware fitting

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108963925A (en) * 2018-09-20 2018-12-07 南方电网科学研究院有限责任公司 A kind of combination hardware fitting
CN108963925B (en) * 2018-09-20 2024-02-13 南方电网科学研究院有限责任公司 Combined hardware fitting

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