CN201017728Y - Extra-high voltage hollow combined insulator - Google Patents
Extra-high voltage hollow combined insulator Download PDFInfo
- Publication number
- CN201017728Y CN201017728Y CNU2007200894762U CN200720089476U CN201017728Y CN 201017728 Y CN201017728 Y CN 201017728Y CN U2007200894762 U CNU2007200894762 U CN U2007200894762U CN 200720089476 U CN200720089476 U CN 200720089476U CN 201017728 Y CN201017728 Y CN 201017728Y
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- high voltage
- ultra
- insulated tube
- lower flange
- composite insulator
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Abstract
The utility model discloses an ultra-high voltage hollow compound insulator, which comprises an insulating tube (2), an upper flange (1), a lower flange (6) and an insulating sheath. The insulating tube (2) is wound by a glass fiber impregnated epoxy rein under the high temperature, the internal diameter is 990 mm to 1010 mm, a compound epoxy resin filling agent (8) is filled in the gap between the insulating tube (2), and the upper flange (1) and the lower flange (6), the insulating sheath consists of a plurality of groups of big umbrella shape skirts (3), a small umbrella shape skirt (4) and a middle connecting sheath (5). A compound silicone rubber bonding agent (7) is filled between the insulating sheath and the insulating tube (2), the compound silicone rubber bonding agent (7) is arranged on the combined surface among the middle connecting sheath (5), the big umbrella shape skirt (3), the small umbrella shape skirt (4) and the upper flange (1) and the lower flange (6), the total height of the ultra-high voltage hollow compound insulator is 10500mm to 11000mm. The design of the utility model is reasonable, the seal effect is good, the insulating property is good, and the mechanical strength is high, thus the utility model mainly applies to the equipment of a 1000 kV ultra-high voltage power transmission station, and the society and economic efficiency is good.
Description
One, technical field:
The utility model relates to the insulator of using on a kind of extra-high voltage electric transmission and transformation equipment, relates in particular to the ultra-high voltage hollow composite insulator of using on a kind of 1000kV UHV transmission station equipment (GIS switchgear, transformer, instrument transformer, circuit breaker etc.).
Two, background technology:
, at a high speed development lasting, steady along with China's economy, power consumption constantly increases, and the distributed pole of Chinese power generation energy resource, resource distribution and power load is unbalanced.Hydroelectric resources concentrates on the west and south, and coal resources concentrate on the northwestward, and load center concentrates on the eastern region, needs length to carry apart from electric power.In order to reduce power outages, national grid begins to superhigh pressure and ultra high voltage development, because the raising of line voltage grade is had higher requirement to the insulator that power equipment is used, need carry out new design and calculating to the mechanical property and the insulation characterisitic of insulator.
Hollow combined insulator is the vitals of composite bushing, also be the easiest accident and the fault of occurring of ultra-high voltage transformer station equipment, the parts of serious accident particularly, to since composite bushing compare with porcelain insulator have light weight, mechanical performance height, surface have hydrophobicity, migration of hydrophobicity, anti-pollution flashover effect are good, blast protection and installation and transportation are easy to maintenance and other is excellent characteristics such as electric property, and be extensively selected by electric power system in recent years.The use of hollow combined insulator will have been contained the generation of pollution flashover accident effectively.
At present, for the employed compound insulating sleeve of the following electrical network of 500kV, usually can adopt the method for integral injection molding to realize, but for 500kV level and above electrical network, extra-high voltage equipment hollow insulator particularly, because diameter is big, structure height is long, the requirement of designing technique, manufacturing process and material is very high, and porcelain insulator is difficult to form by a firing; The domestic in addition 40.5kV～550kV hollow combined insulator of having developed, but because it is very outstanding to be used for hollow combined insulator problem at aspects such as insulation, structure, anti-pollution flashover umbrella shape designs under the extra-high voltage grade of ultra-high voltage transformer station equipment, be difficult to guarantee according to traditional technology, as when adopting high-temp glue injection moulding, under the injection force effect of high temperature, high pressure, damage insulated tube easily, thereby can't realize its production and make.
Three, utility model content:
The purpose of this utility model is: overcome the defective of prior art, a kind of reasonable in design, good sealing effect is provided, has the ultra-high voltage hollow composite insulator of excellent electric insulation performance and high mechanical properties.
The technical solution of the utility model: a kind of ultra-high voltage hollow composite insulator, comprise insulated tube 2, be enclosed within the last lower flange 1 at insulated tube 2 two ends, 6, be arranged on the insulating sleeve between insulated tube outer wall and the last lower flange, described insulated tube 2 is entwined by glass fiber impregnated epoxy resin high temperature, its internal diameter is 990mm～1010mm, and described insulated tube 2 and last lower flange 1, gap between 6 is 0.05mm～0.2mm, fill in this gap and water dress agent 8, described insulating sleeve is by many groups big full skirts 3, umbellule skirt 4 and in connect sheath 5 and combine, wherein, described many big full skirts 3 of group and umbellule skirt 4 are sleeved on the outer wall of described insulated tube 2 successively according to certain arrangement sequence, the big full skirt 3 at two ends or umbellule skirt 4 by in connect sheath 5 respectively with last lower flange 1,6 combinations, and, be filled with bonding agent 7 between described insulating sleeve and the insulated tube 2, connect sheath 5 in described, big full skirt 3, umbellule skirt 4 and last lower flange 1, be provided with bonding agent 7 on the faying face between 6, the whole height of described ultra-high voltage hollow composite insulator is 10500mm～11000mm.
The described inwall of going up lower flange 1,6 is provided with at least one annular groove, and is filled with composite epoxy resin in the described annular groove and waters dress agent 8; Described water the dress agent (8) water the dress agent for composite epoxy resin, described bonding agent (7) is the composite silicone rubber bonding agent.
The end of matching with insulated tube 2 at last lower flange 1,6 is respectively arranged with a seal groove 9, and the axial cross section of sealing groove 9 is shaped as isosceles triangle, or is equilateral triangle, or is isosceles trapezoid.The degree of depth of described seal groove 9 is 13～19mm.The preferred depth of described seal groove 9 is 16mm.
The internal diameter of described insulated tube 2 is 1000mm; Gap between described insulated tube 2 and the last lower flange 1,6 is 0.1mm; The whole height of described ultra-high voltage hollow composite insulator is 10800mm.
The wall thickness of described insulated tube 2 is 18mm～25mm.The wall thickness of described insulated tube 2 is preferably 20mm.
Distance between every group of big full skirt is 90mm～130mm.Distance between every group of big full skirt is preferably 99.5mm.
The beneficial effects of the utility model:
1, the utility model adopts single umbrella technique for sticking can avoid damaging insulated tube, and big two umbellule shape structural designs can improve the dirty withstand voltage level of insulator.
2, the inwall of lower flange is provided with the multiple tracks annular groove on the utility model, and be filled with composite epoxy resin in the annular groove and water the dress agent, can prevent effectively that moisture from entering, so good sealing effect, in addition, adopt the version of overlap joint between big full skirt and the little full skirt, and in connect on sheath, big full skirt, little full skirt and the last lower flange faying face each other and be provided with the composite silicone rubber bonding agent, improve sealing property greatly, prolong the useful life of insulated tube greatly.
3, the utility model is respectively arranged with a seal groove in the end that last lower flange matches with insulated tube, in the sealing groove sealing ring can be set, and is convenient to fixedly connected with the main frame parent.
4, insulated tube of the present utility model immerses (or vacuum impregnation) epoxy resin by glass fiber (or cloth), by certain angle, and at high temperature twine and to make, it is the effect of bearing hollow combined insulator machinery lotus (interior pressure, bending resistance, antitorque, compression and gas of anti-SF6 and an analyte thereof etc.), play a part again simultaneously to support and interior insulation, it is the skeleton of hollow combined insulator, therefore, the glass fiber reinforced epoxy resin pipe has excellent electric insulation performance, high mechanical properties and antifatigue and anti-seismic performance.
5, umbrella sheath of the present utility model adopts high-temperature silicon disulfide rubber sulfuration monolithic umbrella sheath, and it is bonded on the insulated tube, the material system of cluster parachute sheath adopts silicon rubber, it is to be matrix with the macromolecule methyl vinyl silicone rubber, add coupling agent, fire retardant, reinforcing agent, age resister etc. and form through high temperature, high pressure sulfuration, its surface has hydrophobicity.Silicon rubber has excellent anti-ozone aging, heat ageing, ultraviolet light and aging and atmospheric aging performance.In addition; the silicon rubber umbrella cover is not only the hollow combined insulator external insulation; can increase creep distance; simultaneously can also cover glass fiber reinforced epoxy resin pipe avoid the invasion and attack of external environment; the hollow combined insulator long term exposure is under atmospheric environment; umbrella cover can stand Exposure to Sunlight; drench with rain; dust storm; heat; bad weather conditions such as severe cold; naturally saline and alkaline; chemistry acid; alkali; the pollution of salt electro-conductive dust; and the comprehensive test such as deteriorate of contingent sparkover or local arc under the condition such as humidity, it is well anti-aging that the silicon rubber umbrella cover has; high-low temperature resistant; performances such as anti-ozone and anti-galvanic corrosion damage.
6, the lower flange of going up of the present utility model is made by high-strength cast aluminium alloy, is used for that hollow combined insulator and main frame parent be connected and fixed, and it plays a part transfer charge, and its intensity height is not fragile.
Four, description of drawings:
Fig. 1 is the structural representation of ultra-high voltage hollow composite insulator;
Fig. 2 is the partial enlarged drawing at I place among Fig. 1;
Fig. 3 is the partial enlarged drawing at II place among Fig. 1.
Five, embodiment:
Embodiment one: referring to Fig. 1, Fig. 2 and Fig. 3, among the figure, ultra-high voltage hollow composite insulator comprises insulated tube 2, be enclosed within the last lower flange 1 at insulated tube 2 two ends, 6, be arranged on the insulating sleeve between insulated tube outer wall and the last lower flange, insulated tube 2 is entwined by glass fiber impregnated epoxy resin high temperature, its internal diameter is 1000mm, thickness is 20mm, and insulated tube 2 and last lower flange 1, gap between 6 is 0.0.5mm～0.2mm, preferred value 0.1mm, fill composite epoxy resin in this gap and water dress agent 8, insulating sleeve is by many groups big full skirts 3, umbellule skirt 4 and in connect sheath 5 and combine, wherein, many big full skirts 3 of group and umbellule skirt 4 are sleeved on the outer wall of insulated tube 2 successively according to certain arrangement sequence, adopt one big two little arrangement mode among the figure, distance between every group of big full skirt is 90mm～130mm, and preferred value is 99.5mm.The big full skirt 3 of outermost end by in connect sheath 5 and combine with last lower flange 1,6 respectively, and, adopt overlapping mode between the adjacent full skirt, increase sealing, an end that connects sheath 5 in addition is inserted in the lower flange 1,6, be filled with composite silicone rubber bonding agent 7 between insulating sleeve and the insulated tube 2, in the faying face that connects between sheath 5 and the last lower flange 1,6 be provided with composite silicone rubber bonding agent 7, the whole height of ultra-high voltage hollow composite insulator is 10800mm.
The inwall of last lower flange 1,6 is provided with at least one annular groove (among the figure be 7, can certainly be 5,9 or the like, do not enumerate one by one), and is filled with composite epoxy resin in the annular groove and waters dress agent 8.The end of matching with insulated tube 2 at last lower flange 1,6 is respectively arranged with a seal groove 9, the axial cross section of sealing groove 9 be shaped as equilateral triangle (also can be isosceles triangle, can also be for or for isosceles trapezoid, determine as required).The degree of depth of seal groove 9 is 13mm～19mm, and preferred value is 16mm.
Main manufacturing process steps is as follows:
1, first high temperature injection molding silicone rubber list full skirt 3,4 and in connect sheath 5;
2, upper flange 1 (being made by high-strength cast aluminium alloy) is installed on the insulated tube 2, upper flange 1 is 0.1mm with the fit clearance H of insulated tube 2, and the middle composite epoxy resin 8 that adopts is as watering the dress agent; And have many group annular grooves on the flange inner wall, in groove, fill composite epoxy resin 8 as watering the dress agent.
3, then successively with big full skirt 3, little umbrella sheath 4 and in connect sheath 5 and be bonded in successively on the insulated tube 2 by the drawing design, between the umbrella sheath 3,4,5 and and insulated tube between fit clearance be 0.1mm, fill composite silicone rubber bonding agent 7 in this gap;
4, lower flange 6 is bonded on the insulated tube 2, lower flange 6 is 0.1mm with the fit clearance of insulated tube 2, and the middle composite epoxy resin 8 that adopts is as watering the dress agent;
5, adopt among composite silicone rubber bonding agent 7 generals three interfaces that connect sheath 5, go up between lower flange 1,6, the insulated tube 2 to smear smooth sealing at last.Mainly be applicable to 1000kV UHV transmission station equipment.
Embodiment two: present embodiment and embodiment one are basic identical, something in common does not repeat, difference is: described insulated tube 2 internal diameters are 990mm, thickness is 18mm, and the gap between insulated tube 2 and the last lower flange 1,6 is 0.12mm, fill composite epoxy resin in this gap and water dress agent 8, the whole height of ultra-high voltage hollow composite insulator is 10500mm.
Embodiment three: present embodiment and embodiment one are basic identical, something in common does not repeat, difference is: described insulated tube 2 internal diameters are 1010mm, thickness is 25mm, and the gap between insulated tube 2 and the last lower flange 1,6 is 0.05mm, fill composite epoxy resin in this gap and water dress agent 8, the whole height of ultra-high voltage hollow composite insulator is 11000mm.
Change the occurrence of each several part number range, can form a plurality of embodiment, be common excursion of the present utility model, do not describe in detail one by one at this.
Claims (10)
1. ultra-high voltage hollow composite insulator, comprise insulated tube (2), be enclosed within the last lower flange (1 at insulated tube (2) two ends, 6), be arranged on the insulating sleeve between insulated tube outer wall and the last lower flange, it is characterized in that: described insulated tube (2) is entwined by glass fiber impregnated epoxy resin high temperature, its internal diameter is 990mm～1010mm, and described insulated tube (2) and last lower flange (1,6) gap between is 0.05mm～0.2mm, fill in this gap and water dress agent (8), described insulating sleeve is by many groups big full skirts (3), little full skirt (4) and in connect sheath (5) and combine, wherein, described many group big full skirts (3) and little full skirt (4) are sleeved on the outer wall of described insulated tube (2) successively according to certain arrangement sequence, the big full skirt (3) at two ends or little full skirt (4) by in connect sheath (5) respectively with last lower flange (1,6) combination, and, be filled with bonding agent (7) between described insulating sleeve and the insulated tube (2), connect sheath (5) in described, big full skirt (3), little full skirt (4) and last lower flange (1,6) be provided with glue bonding agent (7) on the faying face between, the whole height of described ultra-high voltage hollow composite insulator is 10500mm～11000mm.
2. according to the described ultra-high voltage hollow composite insulator of claim 1, it is characterized in that: the described inwall of going up lower flange (1,6) is provided with at least one annular groove, and is filled with in the described annular groove and waters dress agent (8); Described water the dress agent (8) water the dress agent for composite epoxy resin, described bonding agent (7) is the composite silicone rubber bonding agent.
3. ultra-high voltage hollow composite insulator according to claim 1, it is characterized in that: the end of matching with insulated tube (2) at last lower flange (1,6) is respectively arranged with a seal groove (9), the axial cross section of sealing groove (9) is shaped as isosceles triangle, or be equilateral triangle, or be isosceles trapezoid.
4. ultra-high voltage hollow composite insulator according to claim 3 is characterized in that: the degree of depth of described seal groove (9) is 13～19mm.
5. ultra-high voltage hollow composite insulator according to claim 4 is characterized in that: the degree of depth of described seal groove (9) is 16mm.
6. according to the described ultra-high voltage hollow composite insulator of claim 1, it is characterized in that: the internal diameter of described insulated tube (2) is 1000mm; Gap between described insulated tube (2) and the last lower flange (1,6) is 0.1mm; The whole height of described ultra-high voltage hollow composite insulator is 10800mm.
7. ultra-high voltage hollow composite insulator according to claim 1 is characterized in that: the wall thickness of described insulated tube (2) is 18mm～25mm.
8. ultra-high voltage hollow composite insulator according to claim 7 is characterized in that: the wall thickness of described insulated tube (2) is 20mm.
9. ultra-high voltage hollow composite insulator according to claim 1 is characterized in that: the distance between every group big full skirt is 90mm～130mm.
10. ultra-high voltage hollow composite insulator according to claim 9 is characterized in that: the distance between every group big full skirt is 99.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200894762U CN201017728Y (en) | 2007-02-14 | 2007-02-14 | Extra-high voltage hollow combined insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200894762U CN201017728Y (en) | 2007-02-14 | 2007-02-14 | Extra-high voltage hollow combined insulator |
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| Publication Number | Publication Date |
|---|---|
| CN201017728Y true CN201017728Y (en) | 2008-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200894762U Expired - Lifetime CN201017728Y (en) | 2007-02-14 | 2007-02-14 | Extra-high voltage hollow combined insulator |
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| CN (1) | CN201017728Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101567238B (en) * | 2008-04-24 | 2011-01-12 | 抚顺电瓷制造有限公司 | Direct-current solid-core post porcelain insulator |
| CN105679469A (en) * | 2016-04-02 | 2016-06-15 | 河南省德立泰高压电瓷电器有限公司 | Novel column type anti-pollution flashover insulator |
| CN107305804A (en) * | 2016-04-20 | 2017-10-31 | 泰科电子(上海)有限公司 | Insulator and its manufacture method |
| CN107481818A (en) * | 2017-09-29 | 2017-12-15 | 扬州市双宝电力设备有限公司 | The ultra-high-voltage post composite insulator of unique construction |
| CN108010646A (en) * | 2017-12-28 | 2018-05-08 | 中复碳芯电缆科技有限公司 | A kind of inner wall silicon rubber insulation pipe and preparation method thereof |
| CN109494027A (en) * | 2018-12-03 | 2019-03-19 | 醴陵华鑫电瓷科技股份有限公司 | A kind of hollow combined insulator |
| CN111326298A (en) * | 2020-04-07 | 2020-06-23 | 华北电力大学（保定） | Inner-filling light extra-high voltage composite insulating cross arm |
-
2007
- 2007-02-14 CN CNU2007200894762U patent/CN201017728Y/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101567238B (en) * | 2008-04-24 | 2011-01-12 | 抚顺电瓷制造有限公司 | Direct-current solid-core post porcelain insulator |
| CN105679469A (en) * | 2016-04-02 | 2016-06-15 | 河南省德立泰高压电瓷电器有限公司 | Novel column type anti-pollution flashover insulator |
| CN107305804A (en) * | 2016-04-20 | 2017-10-31 | 泰科电子(上海)有限公司 | Insulator and its manufacture method |
| CN107305804B (en) * | 2016-04-20 | 2023-05-02 | 泰科电子(上海)有限公司 | Insulator and method for manufacturing same |
| CN107481818A (en) * | 2017-09-29 | 2017-12-15 | 扬州市双宝电力设备有限公司 | The ultra-high-voltage post composite insulator of unique construction |
| CN108010646A (en) * | 2017-12-28 | 2018-05-08 | 中复碳芯电缆科技有限公司 | A kind of inner wall silicon rubber insulation pipe and preparation method thereof |
| CN108010646B (en) * | 2017-12-28 | 2024-04-16 | 中复碳芯电缆科技有限公司 | Inner wall silicon rubber insulating tube and preparation method thereof |
| CN109494027A (en) * | 2018-12-03 | 2019-03-19 | 醴陵华鑫电瓷科技股份有限公司 | A kind of hollow combined insulator |
| CN111326298A (en) * | 2020-04-07 | 2020-06-23 | 华北电力大学（保定） | Inner-filling light extra-high voltage composite insulating cross arm |
| CN111326298B (en) * | 2020-04-07 | 2021-11-19 | 华北电力大学（保定） | Inner-filling light extra-high voltage composite insulating cross arm |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: PINGGAO ELECTRIC CO., LTD., HENAN Free format text: FORMER OWNER: PINGGAO GROUP CO., LTD. Effective date: 20131218 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20131218 Address after: South East of Pingdingshan city in Henan province 467001 No. 22 Patentee after: Pinggao Electric Co., Ltd., Henan Address before: South East of Pingdingshan city in Henan province 467001 No. 22 Patentee before: Pinggao Group Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080206 |