CN206673518U - A kind of super-pressure and extra-high voltage resistance-type direct-current wall bushing - Google Patents
A kind of super-pressure and extra-high voltage resistance-type direct-current wall bushing Download PDFInfo
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- CN206673518U CN206673518U CN201720412987.7U CN201720412987U CN206673518U CN 206673518 U CN206673518 U CN 206673518U CN 201720412987 U CN201720412987 U CN 201720412987U CN 206673518 U CN206673518 U CN 206673518U
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Abstract
The utility model discloses a kind of super-pressure and extra-high voltage resistance-type direct-current wall bushing, including rigid conductor, resistor-type insulator, touch screens, insulating sheath, silicon rubber insulator and mounting flange, rigid conductor is " N " shape that corner angle is not less than 90 °, Z-shaped or " L " shape, if rigid conductor is provided with dried layer resistor-type insulator, if dried layer resistor-type insulator is sequentially sleeved on rigid conductor, one layer of touch screens are provided between two layers adjacent of resistor-type insulator, the both ends of several touch screens are retracted to middle part successively according to order from the inside to the outside, outermost touch screens electrically connect with mounting flange.The utility model super-pressure and extra-high voltage solve the problems, such as the reduction of the insulating properties caused by oil leak, gas leakage of traditional super-pressure, ultrahigh voltage direct current wall bushing with resistance-type direct-current wall bushing, improve the reliability of direct-current wall bushing.
Description
Technical field
Super-pressure, extra-high voltage direct-current power transmission and transforming equipment technical field are the utility model is related to, more particularly to a kind of superelevation
Pressure and extra-high voltage resistance-type direct-current wall bushing.
Background technology
In the last hundred years, electric energy is widely used as people's daily life and the industrial energy, and people are to electric energy
Demand cumulative year after year.This it is also proposed higher requirement to high voltage power transmission and transforming.
With the development of science and technology super-pressure, the development of extra-high voltage direct-current transmission field are swift and violent, China successfully have developed ±
The extra-high voltage transformer of 500kV EHV transformer and ± 800kV.Super-pressure, ultrahigh voltage direct current wall bushing are as the valve Room
The connection equipment of interior converter valve and outdoor direct equipment, its importance are self-evident.But at present, super-pressure both domestic and external, extra-high
Press direct-current wall bushing product, be to be formed by connecting by indoor-side, the capacitor type insulating body of outdoor side two mostly, middle part it is oil-filled or
Inflation is insulated.And super-pressure, the ultrahigh voltage direct current wall bushing of existing operation are mainly ABB or Siemens's product, although
Price is high, but and is no lack of fault case.Therefore, be China's super-pressure, extra-high voltage direct-current transmission field provides a kind of safety can
Lean on, cost-effective super-pressure, ultrahigh voltage direct current wall bushing it is just extremely urgent.
Utility model content
The purpose of this utility model is to provide a kind of super-pressure and extra-high voltage resistance-type direct-current wall bushing, with solution
The problem of prior art is present is stated, to reduce dependence of China's direct current electric transmission and transformation technology to external product, and improves wall bushing
Reliability.
To achieve the above object, the utility model provides following scheme：
The utility model provides a kind of super-pressure and extra-high voltage resistance-type direct-current wall bushing, including rigid conductor,
Resistor-type insulator, insulating sheath, silicon rubber insulator and mounting flange, the rigid conductor are that corner angle is not less than 90 °
" N " shape, Z-shaped or " L " shape, the resistor-type insulator is set on the rigid conductor, the resistor-type insulator bag
If the insulating barrier for including dried layer touch screens and being placed between the touch screens of adjacent two layers, if the both ends of touch screens described in dried layer are pressed
It is retracted successively to middle part according to order from the inside to the outside, the outermost touch screens electrically connect with the mounting flange, described exhausted
Edge sheath is set on the resistor-type insulator, and the mounting flange is set in the middle part of the insulating sheath, the silicon rubber
Insulator is set on the insulating sheath, and the silicon rubber insulator is distributed in the mounting flange both sides；The insulation
Plug is provided between the both ends of sheath and the rigid conductor, the both ends of the rigid conductor are equipped with a binding post and pressed
Ring.
Preferably, the outer surface of the rigid conductor is the first screen of touch screens；The mounting flange ground connection is outermost described
Touch screens shield for touch screens.
Preferably, the touch screens in addition to the first screen of the touch screens using metal foil, the film with conductive layer or
Semi-conductive tape continuous winding is formed.
Preferably, the ladder difference of the touch screens is equal.
Preferably, the insulating barrier is made of organic insulation band, continuous overall for one from indoor-side to outdoor side.
Preferably, the corner angle of the rigid conductor is 135 °.
Preferably, the rigid conductor is aluminium alloy pipe or bar.
Preferably, the mounting flange is integral flange or Split flange, and the Split flange is connected by bolt
Connect.
Preferably, the plug is set on the rigid conductor, and the both ends of the insulating sheath are Nian Jie with the plug
Firmly；The plug and the binding post are respectively positioned between two shading rings of the grading ring.
The utility model achieves following technique effect relative to prior art：
Mounting flange of the present utility model is used for the utility model super-pressure and extra-high voltage resistance-type direct current set through walls
Pipe is fixedly connected with wall, and reliable ground.The utility model is directly connected to change in the valve Room using a continuous rigid conductor
Valve and outdoor direct equipment are flowed, according to different voltage class on rigid conductor, if dried layer touch screens are provided with, and in resistance
Resistive layer is set between screen, the touch screens of most external screen is electrically connected and is grounded with mounting flange, makes voltage gradual in radial direction
Reduce.The utility model is used as dielectric without oil-filled or inflation, you can realizes that rigid conductor insulate to wall, realizes set
Manage the function of converter valve and outdoor direct equipment in the rear connection valve Room through walls.Solves traditional super-pressure, extra-high voltage direct-current is worn
The problem of insulating properties reducing caused by oil leak, gas leakage existing for wall sleeve, and easily breaking down, it is new to improve this practicality
The reliability of type super-pressure and extra-high voltage resistance-type direct-current wall bushing.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
In the required accompanying drawing used be briefly described, it should be apparent that, drawings in the following description are only of the present utility model
Some embodiments, for those of ordinary skill in the art, without having to pay creative labor, can also basis
These accompanying drawings obtain other accompanying drawings.
Fig. 1 is the overall structure diagram of the utility model super-pressure and extra-high voltage resistance-type direct-current wall bushing；
Fig. 2 is the partial enlargement structural representation of the utility model super-pressure and extra-high voltage resistance-type direct-current wall bushing
Figure；
Fig. 3 is the scheme of installation of the utility model super-pressure and extra-high voltage resistance-type direct-current wall bushing；
Wherein, 1- rigid conductors, 2- plugs, 3- resistor-type insulators, 4- insulating sheaths, 5- silicon rubber insulators, 6- are equal
Pressure ring, 7- binding posts, 8- mounting flanges.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
The purpose of this utility model is to provide a kind of super-pressure and extra-high voltage resistance-type direct-current wall bushing, with solution
The problem of prior art is present is stated, to reduce dependence of China's direct current electric transmission and transformation technology to external product, and improves wall bushing
Reliability.
To enable above-mentioned purpose of the present utility model, feature and advantage more obvious understandable, below in conjunction with the accompanying drawings and tool
Body embodiment is described in further detail to the utility model.
As Figure 1-3, a kind of super-pressure and extra-high voltage resistance-type direct-current wall bushing are present embodiments provided, including
Rigid conductor 1, resistor-type insulator 3, insulating sheath 4, silicon rubber insulator 5 and mounting flange 8.
Rigid conductor 1 is " N " shape aluminium alloy bars that corner angle is 135 °.The angle makes installation window of the sleeve pipe on wall
Mouth is nearer apart from roof, and the angle of the sleeve portion of outdoor side and ground level is in 135 °.Such structure and mounting means are big
Width shortens the arm of force of sleeve pipe, improves the force-bearing situation of sleeve pipe, can also make the silicon rubber insulation of whole sleeve pipe outdoor part
Son 5 is drenched with rain fully, is made external electric field more uniform, flashover caused by can reducing non-homogeneous drench with rain, is avoided external insulation breakdown.
Resistor-type insulator 3 is arranged with rigid conductor 1, if the resistor-type insulator 3 includes dried layer touch screens and put
Insulating barrier between two layers adjacent of touch screens, if the both ends of touch screens described in dried layer according to order from the inside to the outside according to
It is secondary to be retracted to middle part, it is stepped, and ladder difference is equal, terraced difference can be calculated according to voltage class and casing length.Touch screens
The number of plies can be calculated according to voltage class.Outermost touch screens are electrically connected and are grounded with mounting flange 8.Rigid conductor 1
Outer surface be the first screen of touch screens, outermost touch screens be touch screens shield.Insulating barrier is made of organic insulation band, from family
Inner side is continuous overall for one to outdoor side.Touch screens in addition to the first screen of touch screens are formed using metallized film continuous winding.From
And the resistance value between touch screens is uniformly distributed from inside to outside, voltage is also uniformly distributed.
Insulating sheath 4 is set on outermost resistor-type insulator 3, and the both ends of insulating sheath 4 and rigid conductor 1 it
Between be provided with plug 2, plug 2 is set on rigid conductor 1, and the both ends of insulating sheath 4 are together with the strong bond of plug 2.Plug 2
Outside be provided with grading ring 6, plug 2 and binding post 7 are respectively positioned between two shading rings of grading ring 6.So as to by plug 2 and
The effectively shielding of binding post 7 is inside it.
Mounting flange 8 is Split flange, is set in the middle part of insulating sheath 4, is bolted to connection.Split flange
For integral flange, installation is more convenient, and cost is low.Mounting flange 8 is used to lift and rear sleeve through walls and wall
Installation fix.
Silicon rubber insulator 5 is set on insulating sheath 4, and silicon rubber insulator 5 is symmetrically distributed in 8 liang of mounting flange
Side.The both sides of mounting flange 8 need to be arranged the silicon rubber insulator 5 of respective numbers successively by voltage class, to meet creep age distance
It is required that.
Super-pressure disclosed in the present embodiment and extra-high voltage are with the hoisting process of resistance-type direct-current wall bushing：First make " N "
Shape plane is parallel with ground level, and after indoor-side through after installing window, by outdoor side, slowly rotation makes " N " shape plane and ground level
Vertically, and sleeve pipe family Outboard Sections upward and be in 135 ° of angle with ground level, after being adjusted in place, be fastened and fixed flange 8 i.e.
Can.
The present embodiment is directly connected to intra-valve hall converter valve and outdoor DC equipment using a continuous rigid conductor 1,
The present embodiment is used as dielectric without oil-filled or inflation, you can realizes that rigid conductor 1 insulate to wall, it is through walls to realize sleeve pipe
The function of converter valve and outdoor direct equipment in the connection valve Room afterwards.Solve traditional super-pressure, ultrahigh voltage direct current wall bushing
It is existing insulating properties to be reduced caused by oil leak, gas leakage, and the problem of easily break down, improve the present embodiment super-pressure
Reliability with extra-high voltage with resistance-type direct-current wall bushing, reduces manufacturing cost.
It should be noted that：The rigid conductor of the present embodiment can be corner angle not less than 90 ° " N " shape, Z-shaped or
Any one in " L " shape and any angle.Touch screens can be used in metal foil, film or semi-conductive tape with conductive layer
Any one be made.Rigid conductor can be made up of the conductive material of tubing or bar.
Apply specific case in this specification to be set forth principle of the present utility model and embodiment, the above is real
The explanation for applying example is only intended to help and understands method and its core concept of the present utility model；Meanwhile for the general of this area
Technical staff, according to thought of the present utility model, there will be changes in specific embodiments and applications.To sum up institute
State, this specification content should not be construed as to limitation of the present utility model.
Claims (9)
1. a kind of super-pressure and extra-high voltage resistance-type direct-current wall bushing, it is characterised in that：It is exhausted including rigid conductor, resistor-type
Edge body, insulating sheath, silicon rubber insulator and mounting flange, the rigid conductor be corner angle not less than 90 ° " N " shape,
Z-shaped or " L " shape, the resistor-type insulator are set on the rigid conductor, if the resistor-type insulator includes dried layer
Touch screens and the insulating barrier being placed between the touch screens of adjacent two layers, if the both ends of touch screens described in dried layer according to from it is interior to
Outer order is retracted to middle part successively, and the outermost touch screens electrically connect with the mounting flange, the insulating sheath set
It is located on the resistor-type insulator, the mounting flange is set in the middle part of the insulating sheath, the silicon rubber insulation sub-set
It is located on the insulating sheath, and the silicon rubber insulator is distributed in the mounting flange both sides；The two of the insulating sheath
Plug is provided between end and the rigid conductor, the both ends of the rigid conductor are equipped with a binding post and grading ring.
2. super-pressure according to claim 1 and extra-high voltage resistance-type direct-current wall bushing, it is characterised in that：It is described firm
Property conductor outer surface be the first screen of touch screens；The mounting flange ground connection, the outermost touch screens shield for touch screens.
3. super-pressure according to claim 2 and extra-high voltage resistance-type direct-current wall bushing, it is characterised in that：Except described
The touch screens outside the first screen of touch screens are formed using metal foil, the film with conductive layer or semi-conductive tape continuous winding.
4. super-pressure according to claim 3 and extra-high voltage resistance-type direct-current wall bushing, it is characterised in that：The electricity
The ladder difference of resistance screen is equal.
5. super-pressure according to claim 1 and extra-high voltage resistance-type direct-current wall bushing, it is characterised in that：It is described exhausted
Edge layer is made of organic insulation band, continuous overall for one from indoor-side to outdoor side.
6. super-pressure according to claim 1 and extra-high voltage resistance-type direct-current wall bushing, it is characterised in that：It is described firm
Property conductor corner angle be 135 °.
7. super-pressure according to claim 1 and extra-high voltage resistance-type direct-current wall bushing, it is characterised in that：It is described firm
Property conductor is aluminium alloy pipe or bar.
8. super-pressure according to claim 1 and extra-high voltage resistance-type direct-current wall bushing, it is characterised in that：It is described solid
It is integral flange or Split flange to determine flange, and the Split flange is bolted.
9. super-pressure according to claim 1 and extra-high voltage resistance-type direct-current wall bushing, it is characterised in that：It is described stifled
Headgear is located on the rigid conductor, and the both ends of the insulating sheath are Nian Jie with the plug firmly；The plug and described connect
Line terminals are respectively positioned between two shading rings of the grading ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720412987.7U CN206673518U (en) | 2017-04-19 | 2017-04-19 | A kind of super-pressure and extra-high voltage resistance-type direct-current wall bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720412987.7U CN206673518U (en) | 2017-04-19 | 2017-04-19 | A kind of super-pressure and extra-high voltage resistance-type direct-current wall bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206673518U true CN206673518U (en) | 2017-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720412987.7U Active CN206673518U (en) | 2017-04-19 | 2017-04-19 | A kind of super-pressure and extra-high voltage resistance-type direct-current wall bushing |
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| CN (1) | CN206673518U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107039935A (en) * | 2017-04-19 | 2017-08-11 | 天津沃尔法电力设备有限公司 | A kind of super-pressure and extra-high voltage resistance-type direct-current wall bushing |
-
2017
- 2017-04-19 CN CN201720412987.7U patent/CN206673518U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107039935A (en) * | 2017-04-19 | 2017-08-11 | 天津沃尔法电力设备有限公司 | A kind of super-pressure and extra-high voltage resistance-type direct-current wall bushing |
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