CN201812604U - Hollow composite insulator for 550kV switch - Google Patents
Hollow composite insulator for 550kV switch Download PDFInfo
- Publication number
- CN201812604U CN201812604U CN2010202137862U CN201020213786U CN201812604U CN 201812604 U CN201812604 U CN 201812604U CN 2010202137862 U CN2010202137862 U CN 2010202137862U CN 201020213786 U CN201020213786 U CN 201020213786U CN 201812604 U CN201812604 U CN 201812604U
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- full skirt
- switch
- hollow combined
- combined insulator
- insulated tube
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Abstract
A hollow composite insulator for 550kV switch comprises an insulating tube, a protecting bush wrapped at the outer side of the insulating tube, and at least one full skirt arranged at the outer side of the protecting bush. The inner diameter of the insulating tube is variable between 441mm to 445mm. As the inner diameter of the hollow composite insulator is reduced compared with that of the existing hollow composite insulator, by the experimental evidence, the hollow composite insulator which is provided with the insulating tube with the inner diameter variable between 441mm to 445mm can completely conform to various performances required by the 550kV switch, therefore, the material utilization amount and the processing time are reduced, particularly, the wound complexity and the cutting surplus are decreased, and the manufacturing cost of the hollow composite insulator is lowered greatly.
Description
Technical field
The present invention relates to a kind of electrical circuitry equipment equipment, particularly relate to a kind of 550KV switch hollow combined insulator that is used in the power industry High-Voltage Electrical Appliances.
Background technology
Along with the needs of the development of power industry, particularly extra-high voltage electric transmission and transformation, more and more for the demand of composite insulator.The hollow insulator of common outdoor use is generally porcelain insulator, and is of poor quality because the porcelain insulator resistant is dodged ability, easily broken in transportation and the installation process, and needs periodic cleaning in use, gives to install and use has brought a lot of inconvenience.For addressing this problem, the electrical circuitry equipment industry has been developed traditional hollow combined insulator.Traditional 550KV switch comprises an insulated tube with hollow combined insulator, a sheath that is coated on this insulated tube outside, and at least one is coated on the full skirt in this sheath outside, and the flange that is arranged on described insulated tube two ends.The insulated tube of this hollow combined insulator is by basis material, and the glass fiber yarn that is immersed in this basis material is made.This 550KV switch with hollow insulator in order to guarantee its absolute reliability service, it is all very big that its internal diameter designs mostly, internal diameter as the hollow insulator of present use mostly is 482 millimeters, and through the use of decades, industry thinks that mostly 482 millimeters is the standard values that the 550KV switch is used hollow insulator.But the insulated tube of hollow combined insulator generally all is to make by winding process.In winding process, what of the complexity, material usage, process time of winding process and cutting surplus the internal diameter of the insulated tube of hollow combined insulator determined.Therefore, existing hollow combined insulator with 482 millimeters can cause very big winding complexity, too much material usage and process time, and more cut surplus, thus cause the cost of hollow combined insulator to rise.
Summary of the invention
In view of this, be necessary the 550KV switch hollow combined insulator that provides a kind of internal diameter less.
A kind of 550KV switch hollow combined insulator, it comprises an insulated tube, a sheath that is coated on this insulated tube outside, and at least one is arranged on the full skirt in this sheath outside.The internal diameter of described insulated tube is between 441 millimeters to 445 millimeters.
Compared with prior art, because the minimizing of the internal diameter of hollow combined insulator, and the experiment proved that, the hollow combined insulator that has internal diameter and be 441 millimeters to 445 millimeters insulated tube can meet the desired every performance of 550KV switch fully, thereby make its material usage, all obtain process time reducing, particularly twine complexity and the minimizing of cutting surplus, greatly reduce the manufacturing cost of hollow combined insulator.
Description of drawings
Accompanying drawing is the structural representation of a kind of 550KV switch provided by the invention with hollow combined insulator.
Embodiment
For the present invention being done further explanation, lift a preferred embodiment and conjunction with figs. and be described in detail as follows:
See also accompanying drawing, it is the structural representation of a kind of 550KV switch provided by the present invention with hollow combined insulator 100.Described hollow combined insulator 100 comprises that 10, one of insulated tubes are coated on the sheath 11 in these insulated tube 10 outsides, and at least one is arranged on the full skirt 12 of described sheath 11, and at least one is arranged on the flange 13 of described insulated tube 10 1 ends.
What here need to further specify is, the 550KV switch can be gas insulated combined electric appliance equipment (Gas Insulated Switchgear is called for short GIS), perhaps potting breaker etc.
Described insulated tube 10 is composited by glass fiber yarn and the basis material as reinforcing material.Described basis material can be epoxy resin, vinyl ester resin, or polyurethane resin.In the present embodiment, described basis material is an epoxy resin.In the forming process of this insulated tube 10, epoxy resin adhesive liquid meeting and glass fiber yarn form epoxy resin cured product through a series of physicochemical change.Simultaneously, this epoxy resin cured product forms the boundary layer of structure and superior performance between epoxy resin adhesive liquid and glass fiber yarn, this boundary layer is combined into an integral body to glass fiber yarn and epoxide-resin glue, makes the insulated tube of being made by this epoxy resin and glass fiber yarn 10 have favorable mechanical performance and electric property.Described glass fiber yarn can be the uninterrupted organdy of alkali-free, and this glass fiber yarn accounts for 70%～80% of insulated tube 10 total weights, and in the present embodiment, glass fiber yarn accounts for 78% of insulated tube 10 total weights.The inside diameter D of this insulated tube 10 can be between 441 millimeters to 445 millimeters.In the present embodiment, the inside diameter D of described insulated tube 10 is 441 millimeters.Be that 441 millimeters insulated tube 10 is that sample is done mechanical test with inside diameter D below,, think that inside diameter D is the mechanism performance requirement that 441 millimeters insulated tube 10 can satisfy the 550KV switch by the checking of this mechanical test.
Described sheath 11 and full skirt 12 all are coated on the described insulated tube 10 by the high-temperature silicon disulfide rubber integral injection molding, and wherein sheath 11 is arranged between insulated tube 10 and the full skirt 12.What certainly expect is that described sheath 11 also can be made respectively with full skirt 12, and then combines.Described sheath 11 is coated on the whole insulated tube 10, and has part sheath 11 can be coated on the flange 13, also can be embedded between described flange 13 and insulated tube 10.In this enforcement body, the end of described sheath 11 is embedded between described flange 13 and insulated tube 10.High-temperature silicon disulfide rubber is that the polysiloxane (being rubber) of HMW (molecular weight is generally 40～800,000) adds reinforced filling and other various additives, the employing organic peroxide is a vulcanizing agent, and a kind of rubber of becoming of interlinkage at high temperature, this rubber abbreviates silicon rubber as.The reinforced filling of high-temperature silicon disulfide rubber can be white carbon, and it can make the intensity of vulcanizate increase by ten times.Add various additives and mainly be the cost that reduces glue, improve properties of rubber and give the various properties of vulcanizate such as fire-retardant, conduction etc.In the present embodiment, described high-temperature silicon disulfide rubber includes with the lower part to be formed: methyl vinyl silicone rubber, white carbon, aluminium hydroxide, silicone oil and vulcanizing agent etc., and the shared weight ratio of described each component is: methyl vinyl silicone rubber 20%～50%, white carbon 10～50%, aluminium hydroxide 25～50%, silicone oil 2～5%, vulcanizing agent 1%.What can expect is that this sheath 11 and full skirt 12 can also be made by room temperature vulcanized silicone rubber.
Described full skirt 12 comprises at least one first full skirt 121, second full skirt 122 that at least one and first full skirt 121 are provided with at interval.In the present embodiment, described second full skirt 122 comprises two.What can expect is that as required, this first full skirt 121 or second full skirt 122 can be for a plurality of.Described one first full skirt 121 and two second full skirts 122 are provided with at interval.Described first full skirt 121, second full skirt 122 have different skirts long, and for example the skirt of first full skirt 121 is grown up long in the skirt of second full skirt 122.Certainly be also contemplated that described full skirt 12 is not limited to include only described first, second full skirt 121,122, can also comprise more a plurality of skirts little different full skirt of growing up.And the arrangement mode of this first, second full skirt 121,122 also is not limited to above-mentioned arrangement mode, and other arrangement mode arbitrarily can be arranged.Preferably, the long L of the skirt of described second full skirt 122
2With the long L of the skirt of first full skirt 121
1Ratio be 60%L
1≤ L
2≤ 90%L
1.The inclined angle alpha of the upper surface of described first full skirt 121 is 5 °≤α≤25 °, and the angle of inclination beta of lower surface is 2 °≤β≤6 °, and in the present embodiment, the inclined angle alpha of the upper surface of first full skirt 121 is 8 °, and the lower surface angle of inclination beta is 5 °.The inclination angle of the upper and lower surface of described second full skirt 122 can be identical with the inclination angle of first full skirt 121.The inclination angle of the upper and lower surface of described first, second full skirt 121,122 is controlled at certain limit, help improving the self-cleaning of each full skirt, and the long proportional control of the skirt of first, second full skirt 121,122 helps avoiding the bridge network between the adjacent full skirt under the condition of drenching with rain in certain scope.Be understandable that described hollow combined insulator 100 can comprise a plurality of full skirts 12, also can only have one.When described hollow combined insulator 100 comprised a plurality of full skirt 12, these a plurality of full skirts 12 can be one-body molded, also can distinguish moulding, is bonded in the outside of sheath 11 then by viscose glue.
Described flange 13 by a pedestal 131, one be arranged at pedestal 131 an end and with the pedestal 131 vertical cannula portion that link to each other 132, and at least one is connected with the reinforcement 133 between pedestal 131 and cannula portion.
Described pedestal 131 can be one-body molded with cannula portion 132, and also can be fixed by methods such as welding links together.Described pedestal 131 comprises a plurality of fixing holes 134 that are arranged on this pedestal 131, and this fixing hole 134 is used for this hollow combined insulator 100 by bolt (figure do not show) and other device, and as lightning arrester, switch etc. link together.Described cannula portion 132 is used for sheathed fixed insulation pipe 10.
Compared with prior art, because the minimizing of the inside diameter D of hollow combined insulator, and the experiment proved that, this hollow combined insulator that has inside diameter D and be 356 millimeters to 357 millimeters insulated tube can meet the desired every performance of 550KV switch fully, thereby make its material usage, all obtain process time reducing, particularly twine complexity and the minimizing of cutting surplus, greatly reduce the manufacturing cost of hollow combined insulator.
In addition, those skilled in the art can also do other variation in the spirit of the present invention, as long as it does not depart from technique effect of the present invention, all should be included in the present invention's scope required for protection.
Claims (8)
1. 550KV switch hollow combined insulator, comprise an insulated tube, a sheath that is coated on this insulated tube outside, and at least one is arranged on the full skirt in this sheath outside, it is characterized in that: the internal diameter of described insulated tube is between 441 millimeters to 445 millimeters.
2. 550KV switch hollow combined insulator as claimed in claim 1, it is characterized in that: described insulated tube comprises glass fiber yarn and basis material.
3. 550KV switch hollow combined insulator as claimed in claim 2 is characterized in that: described basis material is a vinyl ester resin.
4. 550KV switch hollow combined insulator as claimed in claim 2 is characterized in that: described basis material is an epoxy resin.
5. 550KV switch hollow combined insulator as claimed in claim 2 is characterized in that: described basis material is a polyurethane resin.
6. 550KV switch hollow combined insulator as claimed in claim 1, it is characterized in that: described sheath and full skirt are made by high-temperature silicon disulfide rubber.
7. 550KV switch hollow combined insulator as claimed in claim 1, it is characterized in that: described sheath and full skirt are made by room temperature vulcanized silicone rubber.
8. 550KV switch hollow combined insulator as claimed in claim 1, it is characterized in that: described sheath and full skirt are one-body molded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202137862U CN201812604U (en) | 2010-05-24 | 2010-05-24 | Hollow composite insulator for 550kV switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202137862U CN201812604U (en) | 2010-05-24 | 2010-05-24 | Hollow composite insulator for 550kV switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201812604U true CN201812604U (en) | 2011-04-27 |
Family
ID=43895543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202137862U Expired - Lifetime CN201812604U (en) | 2010-05-24 | 2010-05-24 | Hollow composite insulator for 550kV switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201812604U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102504523A (en) * | 2011-11-03 | 2012-06-20 | 中国电力科学研究院 | High-toughness polyurethane composite insulator core rod and preparation method thereof |
| CN103065743A (en) * | 2010-05-24 | 2013-04-24 | 江苏神马电力股份有限公司 | Hollow composite insulator used in 550KV switch |
| CN106935332A (en) * | 2017-03-08 | 2017-07-07 | 河南省德立泰高压电瓷电器有限公司 | A kind of arrestor porcelain bushing |
-
2010
- 2010-05-24 CN CN2010202137862U patent/CN201812604U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103065743A (en) * | 2010-05-24 | 2013-04-24 | 江苏神马电力股份有限公司 | Hollow composite insulator used in 550KV switch |
| CN102504523A (en) * | 2011-11-03 | 2012-06-20 | 中国电力科学研究院 | High-toughness polyurethane composite insulator core rod and preparation method thereof |
| CN106935332A (en) * | 2017-03-08 | 2017-07-07 | 河南省德立泰高压电瓷电器有限公司 | A kind of arrestor porcelain bushing |
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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: JIANGSU SHENMA ELECTRIC POWER CO., LTD. Free format text: FORMER OWNER: NANTONG SHENMA POWER ELECTRIC + TECHNOLOGY CO., LTD. Effective date: 20120401 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120401 Address after: 226553 Jiangsu city of Rugao Province towns such as 4, 8, Yang Group Patentee after: Jiangsu Shenma Electric Power Co., Ltd. Address before: 226553 Jiangsu city of Rugao Province towns such as 4, 8, Yang Group Patentee before: Nantong Shenma Electric Power Science & Technology Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110427 |