CN107871569A - The method for coiling of dry-type capacitance type bushing core body - Google Patents
The method for coiling of dry-type capacitance type bushing core body Download PDFInfo
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- CN107871569A CN107871569A CN201711127548.2A CN201711127548A CN107871569A CN 107871569 A CN107871569 A CN 107871569A CN 201711127548 A CN201711127548 A CN 201711127548A CN 107871569 A CN107871569 A CN 107871569A
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- insulating barrier
- core body
- layer
- barrier group
- capacitance plate
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B19/00—Apparatus or processes specially adapted for manufacturing insulators or insulating bodies
Abstract
The invention provides a kind of method for coiling of dry-type capacitance type bushing core body.This method comprises the following steps：The winding number layer insulating materials first outside conducting rod, form the first insulating barrier group；Insulating materials is not interrupted afterwards, but one layer of electric capacity screen material cut in advance is wound outside the first insulating barrier group, forms first layer capacitance plate, two sides of first layer capacitance plate vertically are obstructed by one layer of insulating materials；Then in first layer capacitance plate periphery winding number layer insulating materials, the second insulating barrier group is formed；By that analogy, the winding of all insulating barrier groups and all layer capacitance screens is completed；Finally the sleeve pipe core body base substrate formed is inserted in mould, impregnating resin is vacuumized under preset temperature, after resin dipping is thorough, temperature is improved and is solidified.The present invention can not only solve the compactness uniformity problem of sleeve pipe core body base substrate, moreover it is possible to avoid capacitance plate itself from producing the possibility of vortex ring, reduce the heating that core body is vortexed due to itself, increase the service life of product.
Description
Technical field
The present invention relates to a kind of preparation method of high voltage power transmission and transformation component, specifically a kind of dry-type capacitance type high pressure
The method for coiling of sleeve pipe core body.
Background technology
Dry-type capacitance molded cannula of the prior art, typically there is two kinds of production methods, and first way is glue（Resin）Leaching
Master mode condenser bushing, the Main Insulation Structure of Electric of its sleeve pipe core body are to wind certain thickness along conducting rod periphery with concentric circular fashion
（2--5mm）Crimped paper, do supporting layer using crimped paper, reach when crimped paper as defined in thickness after, it is then folded in crimped paper periphery
The conductive foil of winding concentric circles, is made capacitance plate, the different voltage class being applicable according to bushing, alternately and repeatedly writhing number
Layer crimped paper and capacitance plate, form sleeve pipe core body base substrate；Sleeve pipe core body base substrate is fitted into mould, evacuated impregnating resin adds
The core body of dry sleeve is made in warm curing process.The second way is to use glass fiber impregnation（Resin）Wound around conducting rod
To certain thickness, in sizing material（Resin）Solidify front laminate winding by conductive fiber（Nonwoven conductive fabric）The capacitance plate of composition, according to
The applicable different voltage class of sleeve pipe, iterative cycles writhing number layer, last heating cure, that is, are made dry-type capacitance jacket tube core
Body.
In above two production method, its each layer capacitance screen is all independent closed loop configuration, it is necessary to by crimped paper or glass
Glass filament interrupts its winding after being wound into specific thickness, then individually winds conductive foil or conductive fiber in its periphery, is made
The concentric circles capacitance plate of closed loop.In above-mentioned winding process, because every one layer of winding will be interrupted, therefore, it is difficult to ensure between every layer
Compactness it is relatively uniform；In order that it is relatively uniform inside and outside the compactness of winding, crimped paper or glass fiber are needed to apply
Certain tension force；And more disadvantageously, the capacitance plate of this closed loop configuration can be produced when internally conducting rod passes through high current
Raw closed-loop eddy current, causes sleeve pipe to generate heat, and reduces Service Life of Casing.
The content of the invention
It is existing to solve it is an object of the invention to provide a kind of method for coiling of dry-type capacitance type bushing core body
Condenser bushing core body is it is difficult to ensure that interlayer compactness uniformly and the problem of the capacitance plate of closed loop configuration can produce eddy-current heating.
The object of the present invention is achieved like this：A kind of method for coiling of dry-type capacitance type bushing core body, including such as
Lower step：
A, it is axle center in its peripheral wraps around insulation using conducting rod, waits that wound insulation thickness reaches preset thickness
When, stop winding, the first insulating barrier group is now formd in the periphery of conducting rod；
B, the electric capacity screen material of shape structure cut in advance, rectangular is made using the conducting rod to be axle center wound on described first
The periphery of insulating barrier group, form first layer capacitance plate；By described between two sides of the first layer capacitance plate vertically
The extension of one insulating barrier group is obstructed；
C, it is again axle center wound on the outer of the first layer capacitance plate using the conducting rod to make the extension of the first insulating barrier group
Enclose, and when the thickness wound reaches preset thickness, stop winding, now formd in the periphery of the first layer capacitance plate
Second insulating barrier group；
D, the electric capacity screen material of shape structure cut in advance, rectangular is made using the conducting rod to be axle center wound on described second
The periphery of insulating barrier group, form second layer capacitance plate；By described between two sides of the second layer capacitance plate vertically
The extension of two insulating barrier groups is obstructed；
E, according to above-mentioned steps, the winding work of all insulating barrier groups and all capacitance plates is completed；
F, the extension of outermost insulating barrier group is blocked, forms sleeve pipe core body base substrate；
G, the sleeve pipe core body base substrate formed in step f is inserted in closed mould, carries out vacuumizing leaching under preset temperature
Stain resin, after resin dipping is thorough, improves mold temperature and solidified.
In step g, silicon powder or alumina powder filler are added with the resin；The filler added and the resin
Mass ratio be 0.5-1.5.
The insulating materials is organic aramid fiber non-woven fabrics, polyester fiber non-woven fabrics or the glass fibre of apparent puffy
Cloth.The thickness in monolayer of the insulating materials is 0.5mm-1.2mm；The preset thickness of the insulating barrier group formed is 3mm-5mm.
The electric capacity screen material is conductive non-woven fabrics or woven wire.
The present invention employs continual mode in wraps around insulation, i.e.,：After the winding for completing an insulating barrier group
Insulating materials is not interrupted, but a layer capacitance screen is directly wound in the outside of insulating barrier group, and capacitance plate is open
Open loop structure, two sides of capacitance plate vertically are obstructed by one layer of insulating materials, this continual winding method, no
The compactness uniformity problem of sleeve pipe core body base substrate is address only, can also improve production efficiency, insulating materials is fluffy from apparent density
The non-woven fibre cloth of loose state, more traditional crimped paper is easy with impregnating resin, and good insulation preformance, high mechanical strength
The features such as.Each layer of capacitance plate is all open loop structure, avoids the possibility that capacitance plate itself produces vortex ring, reduces core body
Due to the heating of itself vortex, increase the service life of product.
Brief description of the drawings
Fig. 1 is cross-sectional view when dry-type capacitance type bushing core body is wound in the present invention.
In figure：1st, conducting rod, 2, insulating materials, the 3, first insulating barrier group, 4, first layer capacitance plate, the 5, second insulating barrier
Group, 6, second layer capacitance plate.
Embodiment
With reference to Fig. 1, the method for coiling of dry-type capacitance type bushing core body provided by the present invention comprises the following steps：
（1）, with conducting rod 1 be that axle center winds wide cut in the periphery of conducting rod 1（Width is suitable with the axial length of conducting rod 1）、
The insulating materials 2 of laminar, apparent soft fluffy state, these insulating materials 2 for example can be organic aramid fiber non-woven fabrics, terylene
Fabric nonwoven cloth or glass fabric etc..The thickness in monolayer of insulating materials 2 is typically between 0.5mm-1.2mm；Shown in Fig. 1
It is wound as clockwise, when the thickness of the insulating materials wound reaches prespecified thickness（General control is in 3mm-5mm
Between）When, stopping winding, the several layers of insulating materials now wound in the periphery of conducting rod 1 are referred to as the first insulating barrier group 3, first
Insulating barrier group 3 is cylinder-like structure.
It should be noted that after forming the first insulating barrier group 3 and stopping winding, insulating materials 2 is not interrupted（Need to protect
Demonstrate,prove the length long enough of insulating materials 2）, i.e.,：Still mutually interconnected between first insulating barrier group 3 and remaining unwound insulating materials
Connect, remaining unwound insulating materials is referred to as the extension of the first insulating barrier group 3.
（2）, treat the first insulating barrier group 3 winding after the completion of, insulating materials is not interrupted, but in the first insulating barrier group 3
Outside wind a layer capacitance screen material, electric capacity screen material be sheet type conductive material cut be made, specific material can be led
Electric non-woven fabrics or woven wire etc., electric capacity screen material is cut into rectangular structure in advance, rectangular-shaped capacitance plate material in this step
The width of material is equal to or slightly less than 3 outermost circumferential length of the first insulating barrier group, and the length of electric capacity screen material is also to set in advance
Alright.During winding, a long side of rectangular-shaped electric capacity screen material is set in axial direction to be close to the interior of the extension of the first insulating barrier group 3
Side, after the completion of winding, the outside of another long side of rectangular-shaped electric capacity screen material just at the extension of the first insulating barrier group 3
Face, so that being obstructed between two long sides of rectangular-shaped electric capacity screen material by the extension of the first insulating barrier group 3.Claim
The electric capacity screen material of first insulating barrier group periphery winding is first layer capacitance plate 4, it is clear that first layer capacitance plate 4 compares existing skill
It is open rather than closed loop configuration for art.
（3）, first layer capacitance plate 4 wind after the completion of, make remaining the unwound insulation being connected with the first insulating barrier group 3
Material continue with conducting rod 1 be axle center wound on the periphery of first layer capacitance plate 4, in the peripheral winding number of first layer capacitance plate 4
Layer insulating materials, and when the thickness of the several layers of insulating materials wound reaches preset thickness（Typically between 3mm-5mm）, stop
Only wind, be referred to as the second insulating barrier group 5 in the several layers of insulating materials that the periphery of first layer capacitance plate is formed, the second insulating barrier group 5
Also it is cylinder-like structure.Here, after forming the second insulating barrier group 5 and stopping winding, insulating materials is not still interrupted, i.e.,：The
Still it is connected with each other between two insulating barrier groups 5 and remaining unwound insulating materials, now remaining unwound insulating materials is referred to as
The extension of second insulating barrier group.
（4）, in the periphery one layer capacitance screen material of winding of the second insulating barrier group 5 form second layer capacitance plate 6.Forming the
Used electric capacity screen material is also the rectangular-shaped structure cut in advance during two layer capacitance screens 6, the rectangular-shaped capacitance plate material
The width of material is equal to or slightly less than 5 outermost circumferential length of the second insulating barrier group.During winding, make the rectangular-shaped electric capacity screen material
A long side be in axial direction close to the medial surface of the second insulating barrier group extension, after the completion of winding, the rectangular-shaped capacitance plate
Another long side of material just at the extension of the second insulating barrier group 5 lateral surface so that the rectangular-shaped electric capacity screen material
Two long sides between obstructed by the extension of the second insulating barrier group 5.Second layer capacitance plate 6 formed in this step
It is open loop structure.
（5）, according to above-mentioned steps, as soon as layer capacitance screen is often formed, in its peripheral winding number layer insulating materials, when being wound
Several layers of insulation thickness reach regulation requirement when, then insulating materials periphery winding one layer capacitance screen, the like, directly
To the winding work for completing all insulating barrier groups and all capacitance plates.It should be noted that in winding process, one is often completed absolutely
After the winding of edge layer group, insulating materials is not interrupted, but a layer capacitance screen is directly wound in the periphery of insulating barrier group, it is each
Layer capacitance screen material therefor is all the rectangular configuration that length and width is cut in advance, therefore each layer capacitance screen formed is all
It is open structure, and two sides of each layer capacitance screen vertically are obstructed by one layer of insulating materials.
（6）, treat all insulating barrier groups and after the completion of all capacitance plates all wind, finally insulating materials is blocked again
（Or interrupt）, now form dry-type capacitance molded cannula core body base substrate.
（7）, after the completion of dry-type capacitance molded cannula core body base substrate rolls, be put into closed mould, default
At a temperature of carry out vacuumizing impregnating resin, after resin dipping is thorough, improves mold temperature and solidified.
Insulating materials for the ease of being selected in insulating materials intermediate impregnation resin, the present invention is that thickness in monolayer is
The laminar nonwoven of 0.5mm--1.2mm apparent presentation soft fluffy state（Felt）Cloth, per the insulating materials winding between layer capacitance screen
Thickness is 3--5mm, that is to say, that per the thickness for needing winding number layer insulating materials to can be only achieved its requirement between layer capacitance screen.
Partial filler, such as silicon powder or alumina powder etc. can be added inside resin sizing material, the addition of filler is tree
0.5--1.5 times of lipid amount, to improve the mechanical strength of sleeve pipe core body and to reduce manufacturing cost.
The present invention is wound incessantly using the insulating materials of wide cut, not only solves the closely knit of sleeve pipe core body base substrate
Uniformity problem is spent, can also improve production efficiency, insulating materials selects the non-woven fibre cloth of apparent density soft fluffy state, more traditional
Crimped paper, there is the advantages of impregnating resin is easy, impregnating speed is fast, production efficiency can improve several times, and in the present invention
Insulating materials has the features such as good insulation preformance, high mechanical strength；Each layer of capacitance plate is all open loop structure, avoids electric capacity
Shield the possibility that itself produces vortex ring, reduce the heating that core body is vortexed due to itself, increase the service life of product.
Claims (6)
1. a kind of method for coiling of dry-type capacitance type bushing core body, it is characterized in that, comprise the following steps：
A, it is axle center in its peripheral wraps around insulation using conducting rod, waits that wound insulation thickness reaches preset thickness
When, stop winding, the first insulating barrier group is now formd in the periphery of conducting rod；
B, the electric capacity screen material of shape structure cut in advance, rectangular is made using the conducting rod to be axle center wound on described first
The periphery of insulating barrier group, form first layer capacitance plate；By described between two sides of the first layer capacitance plate vertically
The extension of one insulating barrier group is obstructed；
C, it is again axle center wound on the outer of the first layer capacitance plate using the conducting rod to make the extension of the first insulating barrier group
Enclose, and when the thickness wound reaches preset thickness, stop winding, now formd in the periphery of the first layer capacitance plate
Second insulating barrier group；
D, the electric capacity screen material of shape structure cut in advance, rectangular is made using the conducting rod to be axle center wound on described second
The periphery of insulating barrier group, form second layer capacitance plate；By described between two sides of the second layer capacitance plate vertically
The extension of two insulating barrier groups is obstructed；
E, according to above-mentioned steps, the winding work of all insulating barrier groups and all capacitance plates is completed；
F, the extension of outermost insulating barrier group is blocked, forms sleeve pipe core body base substrate；
G, the sleeve pipe core body base substrate formed in step f is inserted in closed mould, carries out vacuumizing leaching under preset temperature
Stain resin, after resin dipping is thorough, improves mold temperature and solidified.
2. the method for coiling of dry-type capacitance type bushing core body according to claim 1, it is characterized in that, in step g,
Silicon powder or alumina powder filler are added with the resin.
3. the method for coiling of dry-type capacitance type bushing core body according to claim 2, it is characterized in that, in the resin
The mass ratio of middle added filler and the resin is 0.5-1.5.
4. the method for coiling of dry-type capacitance type bushing core body according to claim 1, it is characterized in that, the insulation material
Expect organic aramid fiber non-woven fabrics, polyester fiber non-woven fabrics or the glass fabric for apparent puffy.
5. the method for coiling of dry-type capacitance type bushing core body according to claim 1, it is characterized in that, the insulation material
The thickness in monolayer of material is 0.5mm-1.2mm；The preset thickness of the insulating barrier group formed is 3mm-5mm.
6. the method for coiling of dry-type capacitance type bushing core body according to claim 1, it is characterized in that, the capacitance plate
Material is conductive non-woven fabrics or woven wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711127548.2A CN107871569A (en) | 2017-11-15 | 2017-11-15 | The method for coiling of dry-type capacitance type bushing core body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711127548.2A CN107871569A (en) | 2017-11-15 | 2017-11-15 | The method for coiling of dry-type capacitance type bushing core body |
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| Publication Number | Publication Date |
|---|---|
| CN107871569A true CN107871569A (en) | 2018-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711127548.2A Pending CN107871569A (en) | 2017-11-15 | 2017-11-15 | The method for coiling of dry-type capacitance type bushing core body |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108736400A (en) * | 2018-08-09 | 2018-11-02 | 山东辰祥电气设备有限公司 | Glue soaks felt bushing |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3986253A (en) * | 1975-09-05 | 1976-10-19 | Niemand Bros. Inc. | Electrical insulator for armature shafts and method of installation |
| CN104200938A (en) * | 2014-09-04 | 2014-12-10 | 西安神电高压电器有限公司 | Machining method for high-voltage capacitive dry-type bushing |
| CN104979059A (en) * | 2014-04-14 | 2015-10-14 | 孟繁恒 | Manufacturing method for capacitive high-voltage bushing core |
| CN105355344A (en) * | 2015-12-20 | 2016-02-24 | 西安神电高压电器有限公司 | High-voltage bushing and processing technology thereof |
| CN105590706A (en) * | 2016-02-01 | 2016-05-18 | 大连耐道电器有限公司 | Production technology method of glass fiber reinforced plastic capacitance transformer bushing |
-
2017
- 2017-11-15 CN CN201711127548.2A patent/CN107871569A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3986253A (en) * | 1975-09-05 | 1976-10-19 | Niemand Bros. Inc. | Electrical insulator for armature shafts and method of installation |
| CN104979059A (en) * | 2014-04-14 | 2015-10-14 | 孟繁恒 | Manufacturing method for capacitive high-voltage bushing core |
| CN104200938A (en) * | 2014-09-04 | 2014-12-10 | 西安神电高压电器有限公司 | Machining method for high-voltage capacitive dry-type bushing |
| CN105355344A (en) * | 2015-12-20 | 2016-02-24 | 西安神电高压电器有限公司 | High-voltage bushing and processing technology thereof |
| CN105590706A (en) * | 2016-02-01 | 2016-05-18 | 大连耐道电器有限公司 | Production technology method of glass fiber reinforced plastic capacitance transformer bushing |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108736400A (en) * | 2018-08-09 | 2018-11-02 | 山东辰祥电气设备有限公司 | Glue soaks felt bushing |
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Effective date of abandoning: 20191022 |
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