CN104821214B - A kind of immersion power equipment lead-out wire solid insulation terminal - Google Patents
A kind of immersion power equipment lead-out wire solid insulation terminal Download PDFInfo
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- CN104821214B CN104821214B CN201510174298.2A CN201510174298A CN104821214B CN 104821214 B CN104821214 B CN 104821214B CN 201510174298 A CN201510174298 A CN 201510174298A CN 104821214 B CN104821214 B CN 104821214B
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Abstract
The invention discloses a kind of immersion power equipment lead-out wire solid insulation terminal, including metal catheter, the head of the metal catheter is provided with end plate, outside cast is solidified with insulator, the outside of the insulator is provided with metal mounting seat, top is provided with the fixed termination of copper sealing with end plate connection, and the fixed termination of copper sealing is connected with the pinout connector copper guide rod being arranged in metal catheter.It uses metal mounting seat and metal catheter for sleeve pipe insulated terminal skeleton, epoxy resin is used for predominating insulation, poured with epoxy resin is formed to the insulating body of sleeve pipe using pressure gel technology on metal catheter, casing part sets voltage equalizing ball, constituted suitable for mesohigh（66kV and above）Power equipment wears cable formula dry solid sleeve pipe insulated terminal；Its is simple in construction, and raw material types are few, and processing and manufacturing is easy, and batch production quality control is convenient, and oil-free is without small, the high mechanical strength that fires hidden danger, partial discharge quantity.
Description
Technical field
The present invention relates to power equipment component field, more particularly to a kind of immersion power equipment lead-out wire solid insulation
Terminal.
Background technology
The lead leading-out terminal of liquid immersion type power equipment is also known as sleeve pipe or insulator, is the indispensable group of liquid immersion type power equipment
Part.For many years in mesohigh（Such as 66kV-220kV）Liquid immersion type power equipment as generally used on transformer and reactor
Lead sleeve pipe is generally paper condenser structure, and the interior insulation of such sleeve pipe is typical capacitance type structure, is by high-tension cable paper
The oilpaper capacitor core constituted with conductive metal foil.The capacitor core conductor is in maximum potential, its outermost at the center of sleeve pipe
It is side joint proximity ground potential at mounting flange；And it is umbrella insulator that it is outside, transformer oil is placed in inside insulator, capacitor core
It is immersed in transformer oil；The oil conservater of one special sleeve pipe oil volume expansion compensation is placed in sleeve upper end, thus constitutes such
The basic structure of sleeve pipe.Obviously, such sleeve pipe exists complicated, and constituent material is various, and process equipment requires high, manufactures matter
Measure the obvious defect such as whard to control；Simultaneously because oil-filled structure in insulator, inevitably there is leakage of oil and fire
Hidden danger.Operating experience for many years shows the 80% of power equipment fire above is being triggered by oil filled bushing seepage.Thus dry type without
Tubing and casing turns into a kind of objective demand.
In Patent No.：201010292041.4, patent name is：In dry type high-voltage capacitor core and its manufacture method
In state's patent, it discloses a kind of condenser type fuse technology alternately wound by glass layer and metal foil or wire netting
Used in sleeve technology；In the insulator of the outside suit silicon rubber of the capacitor core, dry oil-free casing is constituted.The technology
Although realizing the dry type non-oil ultra high vacuum system of sleeve pipe, it has still substantially continued traditional capacitance type structure, and its result is still sleeve pipe
It is complicated, manufacturing equipment is complicated, and technical process is cumbersome, and raw material constituent is more, and quality control difficulty is big, winding process
In removal of bubbles it is difficult, shelf depreciation control is difficult, and product cost is expensive.
And pure epoxy resin cast dry sleeve has been developed in low voltage power equipment, Patent No. is seen：
201320376108.1, patent name is：The Chinese patent of non-capacitive dry sleeve, one of its main feature is epoxy resin
Cast directly on conducting rod, its mounting structure is also epoxide resin material pedestal.And described and shown according to its content, arrived
The technology is only applicable to the sleeve pipe of 35kV and following voltage class so far.
The content of the invention
The technical problems to be solved by the invention, which are to provide, a kind of can make the lead ejector of liquid immersion type power equipment
It is simple in construction, mechanization degree height is manufactured, dependable performance is advanced, install simple and convenient, oil-free is without the immersion for firing hidden danger
Power equipment lead-out wire solid insulation terminal.
In order to solve the above-mentioned technical problem, the present invention is achieved by the following technical solutions：A kind of immersion power equipment
Lead-out wire solid insulation terminal, including the metal catheter being made up of metallic aluminium or its alloy material, the head of the metal catheter
Portion is provided with end plate, is provided centrally with mutually being common to its two ends and connects the hollow of power equipment lead-out wire, the metal catheter
Outside pour into a mould that to be solidified with by outdoor epoxy resin be the insulator that is made of main component by pressure gel technology, it is described absolutely
The outside of edge body, which is provided with the metal mounting seat being made up of the alloy material of metallic aluminium, the insulator, is located at metal installation
Part above seat is in multi-layer umbrella skirt, and the part below metal installation base is cylindrical, wherein positioned at the top of insulator
Portion is provided with the fixed termination of copper sealing being fixedly connected with end plate, and the fixed termination of copper sealing is with being arranged on metal catheter
Pinout connector copper guide rod connection in hollow.
Preferably, the outer surface smoother of the metal catheter or the shallow pit shape or shallow striped grid shape that are evenly distributed
Or spraying layer of conductive material layer or the thin epoxy resin layer for being encapsulated with glass fiber reinforcement.
Preferably, being provided with multiple-layer horizontal or vertical epoxy resin scrim layer and glass fibre in the insulator
Layer of cloth.
Preferably, being provided with capacitor layers in the insulator, the capacitor layers are the metal foil layer that multilayer is disposed vertically
Or metal net layer or semiconductor lamella, it is insulator between the metal foil layer or between metal net layer or between semiconductor layer
Material is in itself.
Preferably, being set between the metal foil layer or between metal net layer or between semiconductor layer in the material of insulator
It is equipped with epoxy resin scrim layer or fiberglass cloth.
Preferably, the outer surface of the insulator top full skirt shape and lower cylindrical is coated with overcoat.
Preferably, the overcoat on described insulator top full skirt shape is layer of silica gel or nanometer radiating insulating layer, absolutely
Overcoat on edge body lower cylindrical is more than for insulating varnish layer or nanometer radiating insulating layer, and the thickness of the overcoat
0.5mm。
Preferably, the end of the metal catheter is provided with voltage equalizing ball, the voltage equalizing ball is wrapped in insulator or exposed
In insulator exterior.
Preferably, the voltage equalizing ball structure is that metal thin plate calendaring is spherical or be with endoporus and outer ring changes into arc-shaped
Metallic plate.
Preferably, the upstanding portion in the metal mounting seat is wrapped in insulator or its outer surface is exposed exhausted
Outside edge body, the surface contacted in metal mounting seat with insulator is smooth or sprays layer of conductive material layer or is encapsulated with glass
Level in fibre-reinforced thin epoxy resin layer or the shallow pit shape or shallow striped grid shape that are evenly distributed, metal installation base
Part, which is provided with multiple mounting holes, a steam vent and multiple reinforcements, two of which reinforcement, is each provided with a lifting hole(eyelet)；
When insulator is internally provided with capacitor layers, the upstanding portion in the metal installation base is provided with to be connected with capacitor layers outermost layer
The ground screen device connect.
Compared with prior art, usefulness of the present invention is：This immersion power equipment lead-out wire uses solid insulation end
Son uses metal mounting seat and metal catheter for sleeve pipe insulated terminal skeleton, uses epoxy resin for predominating insulation, profit
Poured with epoxy resin is formed to the insulating body of sleeve pipe with pressure gel technology on metal catheter, casing part sets and pressed
Ball, is constituted suitable for mesohigh（66kV and above）Power equipment wears cable formula dry solid sleeve pipe insulating end
Son；Its is simple in construction, and raw material types are few, and processing and manufacturing is easy, and batch production quality control is convenient, oil-free without firing hidden danger,
Partial discharge quantity is small, high mechanical strength.
Brief description of the drawings
The present invention is further described below in conjunction with the accompanying drawings.
Fig. 1 is a kind of immersion power equipment lead-out wire solid insulation terminal outer structural representation of the invention；
Fig. 2 is a kind of immersion power equipment lead-out wire solid insulation terminal overlooking the structure diagram of the invention；
Fig. 3 is the structure sectional view of A-A in Fig. 2；
Fig. 4 is the partial enlarged drawing of B in Fig. 3；
Fig. 5 is the partial enlarged drawing of C in Fig. 3；
Fig. 6 is the structural representation of metal catheter in a kind of immersion power equipment lead-out wire solid insulation terminal of the invention
Figure；
Fig. 7 is the knot of the fixed termination of copper sealing in a kind of immersion power equipment lead-out wire solid insulation terminal of the invention
Structure schematic diagram；
Fig. 8 is the knot of pinout connector copper guide rod in a kind of immersion power equipment lead-out wire solid insulation terminal of the invention
Structure schematic diagram；
Fig. 9 is a kind of immersion power equipment lead-out wire solid insulation terminal die structural representation of the invention；
Figure 10 is a kind of immersion power equipment lead-out wire of the invention with adding capacitor layers in solid insulation terminal insulative body
Structural representation.
In figure：1st, metal catheter；11st, end plate；12nd, voltage equalizing ball；2nd, insulator；3rd, pinout connector copper guide rod；4th, copper
The fixed termination of sealing；5th, metal installation base；51st, mounting hole；6th, the first mould；7th, the second mould；8th, capacitor layers.
Embodiment
Below in conjunction with the accompanying drawings and embodiment the present invention will be described in detail：
A kind of immersion power equipment lead-out wire solid insulation terminal shown in Fig. 1, Fig. 2 and Fig. 3, including by metallic aluminium or its
The metal catheter 1 that alloy material is constituted, as shown in fig. 6, the head of the metal catheter 1 is provided with end plate 11, the end plate 11
It is made up of metal aluminum or aluminum alloy, the similar thermal expansion coefficient of its thermal coefficient of expansion and insulator 2, in the metal catheter 1
The heart, which is provided with mutually to be common to its two ends, connects the hollow of power equipment lead-out wire, and the outside of the metal catheter 1 passes through vacuum
The cast of pressure gel technology is solidified with by having the insulator 2 being made up of outdoor epoxy resin for main component, and the family
Added with auxiliary materials, the thermal coefficient of expansion and metal catheter of the insulator 2 such as curing agent, toughener in external application epoxy resin
Multiple-layer horizontal is provided with 1 similar thermal expansion coefficient, insulator 2 or vertical epoxy resin scrim layer and glass fabric
Layer is provided with capacitor layers 8, as shown in Figure 10, the capacitor layers 8 be the metal foil layer that is disposed vertically of multilayer or metal net layer or
Between semiconductor lamella, the metal foil layer or between metal net layer or between semiconductor layer for insulator 2 material in itself, or
Epoxy resin scrim layer or fiberglass cloth are provided with the material of described insulator 2 simultaneously；The metal catheter 1
Outer surface smoother or the shallow pit shape or shallow striped grid shape that are evenly distributed or spraying layer of conductive material layer are encapsulated with glass
The fibre-reinforced thin epoxy resin of glass；As shown in figure 4, the outside of the insulator 2 is provided with by the alloy material system of metallic aluminium
Into metal mounting seat 5, the thermal coefficient of expansion of the metal mounting seat 5 and the similar thermal expansion coefficient of insulator 2 are described
Upstanding portion in metal mounting seat 5 is wrapped in insulator 2 or its outer surface is exposed outside insulator 2, and metal is installed
The surface contacted on base 5 with insulator 2 is smooth or sprays layer of conductive material layer or is encapsulated with the thin ring of glass fiber reinforcement
Horizontal component in oxygen tree lipid layer or the shallow pit shape or shallow striped grid shape being evenly distributed, metal installation base 5 is provided with many
A lifting hole(eyelet) is each provided with individual mounting hole 51, a steam vent and multiple reinforcements, two of which reinforcement, is easily installed；
When insulator 2 is internally provided with capacitor layers 8, the upstanding portion in the metal installation base 5 is provided with and the outermost layer of capacitor layers 8
The ground screen device being connected；The part for being located at the top of metal installation base 5 on the insulator 2 is in multi-layer umbrella skirt, positioned at metal
The part of the lower section of mounting seat 5 is cylindrical, and the outer surface of the top full skirt shape of insulator 2 and lower cylindrical is exposed or sprays
There is overcoat；When spraying overcoat, the overcoat on the top full skirt shape of insulator 2 is layer of silica gel or nanometer radiating insulating layer,
Overcoat on the lower cylindrical of insulator 2 is insulating varnish layer or nanometer radiating insulating layer, and the thickness of the overcoat is big
In 0.5mm；As shown in Figure 7 and Figure 8, wherein being provided with the copper sealing being fixedly connected with end plate 11 positioned at the top of insulator 2
Termination 4 is fixed, and the fixed termination 4 of copper sealing connects with being arranged on the hollow interior pinout connector copper guide rod 3 of metal catheter 1
Connect；As shown in figure 5, the end of the metal catheter 1 is provided with voltage equalizing ball 12, the voltage equalizing ball 12 is by metal aluminum or aluminum alloy system
Into the similar thermal expansion coefficient of its thermal coefficient of expansion and insulator 2；And be wrapped in insulator 2 or exposed outside insulator 2
Portion, and its structure is that metal thin plate calendaring is spherical or be the metallic plate that arc-shaped is changed into endoporus and outer ring, in voltage class
When relatively low, the voltage equalizing ball 12 can be with very little or cancellation.
The immersion power equipment lead-out wire is as follows with the manufacture of solid insulation terminal, as shown in figure 9, using vacuum
During the casting insulated body 2 of pressure gel technology, the two ends of metal catheter 1 are blocked temporarily, with metal catheter 1 and metal mounting seat
5 be skeleton, installed on the mould that the first mould 6 and the second mould 7 are constituted, in the cavity of the position of insulator 2 of mould,
Uniform intervals are placed or winding epoxy resin grid cloth, and appropriate grid cloth is filled in the full skirt position of mould；Wherein first
Mould 6 is fixed together in the top of metal mounting seat 5 with metal mounting seat 5, the multilayer umbrella for casting insulated body 2
Part；Second mould 7 is fixed together in the lower section of metal mounting seat 5 with metal mounting seat 5, for casting insulated body 2
Circular cylinder shaped portion；The mould completed will be assembled and metal mounting seat 5 is arranged on forcing press, and connect feeding machine etc. and set
It is standby, the epoxy resin containing the auxiliary material such as curing agent and softening agent prepared is injected by mould by vacuum pressure gelation technology
Shaping；Reach technological requirement and after the time, withdraw from device from forcing press, remove mould, afterwards by pour mass surface
The processes such as reason, solidification, sprayed surface paint, finally install the fixed termination 4 of copper sealing, complete product manufacturing.
This immersion power equipment lead-out wire solid insulation terminal uses metal mounting seat 5 and metal catheter 1 for set
Pipe insulation terminal skeleton, uses outdoor special epoxy resin for predominating insulation, using vacuum pressure gelation technology by epoxy
Resin-cast forms the insulating body of sleeve pipe on metal catheter 1, and casing part sets voltage equalizing ball 12, constitutes brand-new be applicable
In mesohigh（66kV and above）Power equipment wears cable formula dry solid sleeve pipe insulated terminal；Its is simple in construction,
Raw material types are few, and processing and manufacturing is easy, and batch production quality control is convenient, and oil-free is without small, the machine that fires hidden danger, partial discharge quantity
Tool intensity is high.
It is emphasized that：It the above is only presently preferred embodiments of the present invention, not make any formal to the present invention
Limitation, any simple modification, equivalent variations and modification that every technical spirit according to the present invention is made to above example,
In the range of still falling within technical solution of the present invention.
Claims (9)
1. a kind of immersion power equipment lead-out wire solid insulation terminal, it is characterised in that：Including by metallic aluminium or its alloy material
Expect the metal catheter constituted（1）, the metal catheter（1）Head be provided with end plate（11）, it is provided centrally with and its two ends phase
It is common to and connects the hollow of power equipment lead-out wire, the metal catheter（1）Outside pass through pressure gel technology cast solidification
There is the insulator being made up of outdoor epoxy resin for main component（2）, the insulator（2）Outside be provided with by metallic aluminium
The metal mounting seat that is made of alloy material（5）, the insulator（2）It is upper to be located at metal installation base（5）The part of top is in
Multi-layer umbrella skirt, positioned at metal installation base（5）The part of lower section is cylindrical, wherein positioned at insulator（2）Top be provided with
With end plate（11）The fixed termination of copper sealing being fixedly connected（4）, and the fixed termination of copper sealing（4）Led with being arranged on metal
Pipe（1）Pinout connector copper guide rod in hollow（3）Connection；The metal mounting seat（5）On upstanding portion be wrapped in absolutely
Edge body（2）Interior or its outer surface is exposed in insulator（2）Outside, metal mounting seat（5）Upper and insulator（2）The surface of contact
Smooth or spraying layer of conductive material layer is encapsulated with the thin epoxy resin layer of glass fiber reinforcement or the shallow fiber crops being evenly distributed
Point-like or shallow striped grid shape, metal installation base（5）On horizontal component be provided with multiple mounting holes（51）, a steam vent and
A lifting hole(eyelet) is each provided with multiple reinforcements, two of which reinforcement；Work as insulator（2）It is internally provided with capacitor layers（8）When,
The metal installation base（5）On upstanding portion be provided with and capacitor layers（8）The ground screen device that outermost layer is connected.
2. immersion power equipment lead-out wire solid insulation terminal according to claim 1, it is characterised in that：The gold
Belong to conduit（1）Outer surface smoother or the shallow pit shape or shallow striped grid shape that are evenly distributed or spraying layer of conductive material layer
Or it is encapsulated with the thin epoxy resin layer of glass fiber reinforcement.
3. immersion power equipment lead-out wire solid insulation terminal according to claim 1, it is characterised in that：The insulation
Body（2）Inside it is provided with multiple-layer horizontal or vertical epoxy resin scrim layer and fiberglass cloth.
4. immersion power equipment lead-out wire solid insulation terminal according to claim 1, it is characterised in that：The insulation
Body（2）Inside it is provided with capacitor layers（8）, the capacitor layers（8）The metal foil layer or metal net layer that are disposed vertically for multilayer are partly led
It is insulator between body thin layer, the metal foil layer or between metal net layer or between semiconductor layer（2）Material in itself.
5. immersion power equipment lead-out wire solid insulation terminal according to claim 4, it is characterised in that：The metal
Insulator between layers of foil or between metal net layer or between semiconductor layer（2）Material in be provided with epoxy resin scrim layer or
Fiberglass cloth.
6. immersion power equipment lead-out wire solid insulation terminal according to claim 1, it is characterised in that：The insulation
Body（2）The outer surface of top full skirt shape and lower cylindrical is coated with overcoat.
7. immersion power equipment lead-out wire solid insulation terminal according to claim 6, it is characterised in that：Described is exhausted
Edge body（2）Overcoat on the full skirt shape of top is layer of silica gel or nanometer radiating insulating layer, insulator（2）It is anti-on lower cylindrical
Sheath is insulating varnish layer or nanometer radiating insulating layer, and the thickness of the overcoat is more than 0.5mm.
8. immersion power equipment lead-out wire solid insulation terminal according to claim 1, it is characterised in that：The metal
Conduit（1）End be provided with voltage equalizing ball（12）, the voltage equalizing ball（12）It is wrapped in insulator（2）It is interior or exposed in insulator（2）
It is outside.
9. immersion power equipment lead-out wire solid insulation terminal according to claim 8, it is characterised in that：It is described to press
Ball（12）Structure is that metal thin plate calendaring is spherical or be the metallic plate that arc-shaped is changed into endoporus and outer ring.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510174298.2A CN104821214B (en) | 2015-04-14 | 2015-04-14 | A kind of immersion power equipment lead-out wire solid insulation terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510174298.2A CN104821214B (en) | 2015-04-14 | 2015-04-14 | A kind of immersion power equipment lead-out wire solid insulation terminal |
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| Publication Number | Publication Date |
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| CN104821214A CN104821214A (en) | 2015-08-05 |
| CN104821214B true CN104821214B (en) | 2017-11-03 |
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| CN201510174298.2A Active CN104821214B (en) | 2015-04-14 | 2015-04-14 | A kind of immersion power equipment lead-out wire solid insulation terminal |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105118631B (en) * | 2015-09-25 | 2017-10-17 | 苏州翰为电气科技有限公司 | A kind of dry insulation sleeve pipe |
| CN108469579B (en) * | 2018-05-04 | 2024-04-30 | 扬州森源电力科技有限公司 | High-voltage testing terminal for external conical sleeve of switch cabinet |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101572141B (en) * | 2008-05-04 | 2013-06-12 | 黄维枢 | Cascade high-voltage bushing |
| CN201392722Y (en) * | 2009-04-24 | 2010-01-27 | 西安爱博电气有限公司 | Resin impregnated paper capacitor-type transformer bushing |
| CN103563013B (en) * | 2011-05-27 | 2016-01-20 | Abb技术有限公司 | For the electric component of high-tension apparatus |
| CN203481018U (en) * | 2013-09-26 | 2014-03-12 | 中国西电电气股份有限公司 | Resin-impregnated paper high-voltage capacitance bushing for converter transformer |
| CN204516506U (en) * | 2015-04-14 | 2015-07-29 | 苏州翰为电气科技有限公司 | Immersion power equipment lead-out wire solid insulation terminal |
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Effective date of registration: 20230628 Address after: 102600 Room 403, unit 1, 15th floor, changfengyuan, Huangcun Town, Daxing District, Beijing Patentee after: Du Lihong Address before: 4-305, No. 18, Suzhou River Road, the Taihu Lake New Town, Wujiang District, Suzhou City, Jiangsu Province, 215200 Patentee before: SUZHOU HANWEI ELECTRICAL SCIENCE & TECHNOLOGY CO.,LTD. |