CN205282200U - 220kV composite insulator suitable for heavy ice district - Google Patents
220kV composite insulator suitable for heavy ice district Download PDFInfo
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- CN205282200U CN205282200U CN201620050366.4U CN201620050366U CN205282200U CN 205282200 U CN205282200 U CN 205282200U CN 201620050366 U CN201620050366 U CN 201620050366U CN 205282200 U CN205282200 U CN 205282200U
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Abstract
The utility model discloses a 220kV composite insulator suitable for heavy ice district, including plug, cladding in the outside sheath of plug with be fixed in the full skirt subassembly in the sheath outside, the full skirt subassembly includes along sheath axial NULL's especially big full skirt, super large full skirt, big full skirt, well full skirt and little full skirt, the diameter of especially big full skirt and super large full skirt is 230~300mm and the diameter of especially big full skirt is greater than super large full skirt diameter, the diameter of big full skirt is 140~180mm, the diameter of well full skirt is 80~130mm, the diameter of little full skirt is lighter than the diameter of well full skirt, the utility model discloses a 220kV composite insulator suitable for heavy ice district, can be applied to severe icing area 220kV electric pressure power transmission system's insulator lectotype in the middle of, have rational in infrastructure, can delay or prevent sleet bridging full skirt, ice to dodge the flat also more excellent advantage of higher, the resistant sewage of performance, easy popularization and application.
Description
Technical field
The utility model belongs to high voltage and insulation technology field, is greater than the composite insulator of the severe icing degree area use of 20mm especially for ice covering thickness.
Background technology
Composite insulator, because its weight is light, intensity height, anti-pollution characteristic are good, running maintenance is convenient and are widely used in high voltage power transmisson system, also can greatly reduce the size of high-voltage power transmission tower in the use of Chong Wu district, reduce the construction cost of transmission of electricity system. but under icing environment, the hydrophobicity performance on composite insulator silicon rubber full skirt surface temporarily or is partly lost, its advantage can not get embodying, and now beveled structure by the quality weighing composite insulator external insulation electric property and affects its ager process. existing Artificial simulative experiments result and field operation experiences all show: existing beveled structure composite insulator umbrella skirt gap is generally less than normal, it is easy to by ice rib bridge joint, and the decline of its electric property is remarkable, even lower than the porcelain under equivalent constructions height and glass insulator strings. current beveled structure does not carry out independent optimization design for severe ice-covering area in studying temporarily, more dodge and the dirty prioritization scheme dodging relevant theory and combining there are no ice, such as published patent " umbrella skirt construction of combined insulator of high altitude ice-covering area ", around composite insulator, beveled structure is optimized research by angle around flow field characteristic and along face electric field distribution, and patent disclosed in another " composite insulator umbrella-shaped structure ", ensureing under the prerequisite that insulator resistant dodges performance, start with from reduction insulator full skirt materials consumption angle, composite insulator umbrella-shaped structure has been studied, the improvements of published patent " anti-icing sudden strain of a muscle composite insulator " are then, existing beveled structure composite insulator basis is designed with the covering skirt of a slice major diameter and its shape is buckle the plate-like covered downwards every several full skirts, concave surface is down, and another published utility model patent " a kind of ice flashover prevention high-voltage bar suspension type composite insulator umbrella structure ", it is that the big umbrella that installs additional by intermittence stops ice rib bridge joint. disclosed four patents are not all considered the impact of icing degree and from the angle of icing flashover electric field and discharge process, beveled structure are not optimized design above, by different beveled structure composite insulator having been carried out charged icing and flashover property test in large scale multifunctional artificial climate room, result of study shows: under heavy ice (d > 20mm) condition, full skirt ice rib can grow always until bridge joint umbrella spacing, even if having no exception compared with the extra-large shed of Large space, and the diameter of full skirt, quantity and a slot put all can its ice of remarkably influenced dodge characteristic.
Practical novel content
In view of this, the purpose of this utility model is for the deficiencies in the prior art, it is provided that be applicable to the composite insulator of severe ice-covering area.
The 220kV composite insulator being applicable to heavy ice district of the present utility model, comprises plug, is coated on the sheath of plug outside and is fixed on the full skirt assembly outside sheath; Described full skirt assembly comprises along the axial alternately arranged especially big full skirt of sheath, extra-large shed, big full skirt, middle full skirt and little full skirt; The diameter of described especially big full skirt and extra-large shed is 230��300mm and the diameter of especially big full skirt is greater than extra-large shed diameter; The diameter of described big full skirt is 140��180mm; The diameter of described middle full skirt is 80��130mm; The diameter of described little full skirt is less than the diameter of middle full skirt.
Further, described especially big full skirt, extra-large shed, big full skirt, middle full skirt and little full skirt are according to the sequential loop arrangement of an especially big full skirt, extra-large shed or big full skirt, a little full skirt, a middle full skirt, a little full skirt.
Further, distance between adjacent full skirt is not less than 30mm.
Further, distance between adjacent full skirt is 36mm or 39mm; The diameter of described especially big full skirt is 300mm; The diameter of described extra-large shed is 230mm; The diameter of described big full skirt is 150mm; The diameter of described middle full skirt is 120mm; The diameter of described little full skirt is 90mm.
The beneficial effects of the utility model are: the 220kV composite insulator being applicable to heavy ice district of the present utility model, under the prerequisite having certain umbrella spacing, the flashover performance that can improve heavy ice district composite insulator is put by the diameter and a slot changing full skirt, its icing flashover voltage compared with prior art improves 7%��19%, performance analysis is dodged by dirt, dirty sudden strain of a muscle performance can meet the design requirement in the relatively light heavy ice district of contamination degree, can be applied in the middle of the insulator type selecting of severe ice-covering area 220kV voltage range transmission of electricity system, have rational in infrastructure, can delay or stop ice rib bridge joint full skirt, it is higher that ice dodges performance, resistant level is the advantage such as more excellent also, it is easy to apply.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Fig. 1 is structural representation of the present utility model, as shown in the figure: the 220kV composite insulator being applicable to heavy ice district of the present embodiment, comprise plug 1, it is coated on the sheath 2 of plug 1 outside and is fixed on the full skirt assembly outside sheath 2, described full skirt assembly comprises along the axial alternately arranged especially big full skirt 3 of sheath 2, extra-large shed 4, big full skirt 5, middle full skirt 6 and little full skirt 7, the diameter of described especially big full skirt 3 and extra-large shed 4 is 230��300mm and the diameter of especially big full skirt 3 is greater than extra-large shed 4 diameter, the diameter of described big full skirt 5 is 140��180mm, the diameter of described little full skirt 7 is less than the diameter of middle full skirt 6, the diameter of described middle full skirt 6 is 80��130mm, the 220kV composite insulator being applicable to heavy ice district of the present embodiment is under the prerequisite having certain umbrella spacing, the flashover performance that can improve heavy ice district composite insulator is put by the diameter and a slot changing full skirt, its icing flashover voltage compared with prior art improves 7%��19%, performance analysis is dodged by dirt, dirty sudden strain of a muscle performance can meet the design requirement in the relatively light heavy ice district of contamination degree, can be applied in the middle of the insulator type selecting of severe ice-covering area 220kV voltage range transmission of electricity system, have rational in infrastructure, can delay or stop ice rib bridge joint full skirt, it is higher that ice dodges performance, resistant level is the advantage such as more excellent also, it is easy to apply, each full skirt includes sleeve and is threaded connection the skirt section being fixed on excircle of sleeve, the tube-in-tube structure of different full skirt is identical, the end face of sleeve is provided with dental inlay tooth, therefore sheath 2 it is set in after the skirt section of different diameter and sleeve combination are formed the full skirt of corresponding size on request outside, plug 1 two ends are all fixedly connected with gold part 8, by gold part 8 by axially fixing to sheath 2 and each full skirt, the end face that gold part 8 contacts with sleeve is also provided with dental inlay tooth, each sleeve circumference location is made by the dental inlay tooth of gold part 8 and sleeve end face, unified tube-in-tube structure is beneficial to production in enormous quantities, reduce costs, adopt sleeve type connection structure therefore can arrange the full skirt of different size as required between full skirt from sheath 2, flexible and convenient to use.
In the present embodiment, described especially big full skirt 3, extra-large shed 4, big full skirt 5, middle full skirt 6 and little full skirt 7 are according to the sequential loop arrangement of an especially big full skirt 3, extra-large shed 4 or big middle full skirt 6, the little full skirt 7 of the little full skirt of full skirt 5,7; Especially big full skirt 3 layout alternate with extra-large shed 4, arranges two big full skirts 5 between adjacent especially big full skirt 3 and extra-large shed 4, namely every three circulations adopt an extra-large shed 4; Every six circulations adopt an especially big full skirt 3; Between each full skirt, slot is put and is optimized design, compared with prior art can improve the flashover performance of heavy ice district composite insulator.
In the present embodiment, the distance between adjacent full skirt is not less than 30mm.
In the present embodiment, the distance between adjacent full skirt is 36mm or 39mm; The diameter of described especially big full skirt 3 is 300mm; The diameter of described extra-large shed 4 is 230mm; The diameter of described big full skirt 5 is 150mm; The diameter of described middle full skirt 6 is 120mm; The diameter of described little full skirt 7 is 90mm; The diameter of each full skirt is optimized design, compared with prior art can improve the flashover performance of heavy ice district composite insulator.
What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although the utility model being described in detail with reference to better embodiment, it will be understood by those within the art that, the technical solution of the utility model can be modified or equivalent replacement, and not departing from objective and the scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (4)
1. one kind is applicable to the 220kV composite insulator in heavy ice district, it is characterised in that: comprise plug, be coated on the sheath of plug outside and it be fixed on the full skirt assembly outside sheath; Described full skirt assembly comprises along the axial alternately arranged especially big full skirt of sheath, extra-large shed, big full skirt, middle full skirt and little full skirt; The diameter of described especially big full skirt and extra-large shed is 230��300mm and the diameter of especially big full skirt is greater than extra-large shed diameter; The diameter of described big full skirt is 140��180mm; The diameter of described middle full skirt is 80��130mm; The diameter of described little full skirt is less than the diameter of middle full skirt.
2. the 220kV composite insulator being applicable to heavy ice district according to claim 1, it is characterised in that: described especially big full skirt, extra-large shed, big full skirt, middle full skirt and little full skirt are according to the sequential loop arrangement of an especially big full skirt, extra-large shed or big full skirt, a little full skirt, a middle full skirt, a little full skirt.
3. the 220kV composite insulator being applicable to heavy ice district according to claim 2, it is characterised in that: the distance between adjacent full skirt is not less than 30mm.
4. the 220kV composite insulator being applicable to heavy ice district according to claim 3, it is characterised in that: the distance between adjacent full skirt is 36mm or 39mm; The diameter of described especially big full skirt is 300mm; The diameter of described extra-large shed is 230mm; The diameter of described big full skirt is 150mm; The diameter of described middle full skirt is 120mm; The diameter of described little full skirt is 90mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620050366.4U CN205282200U (en) | 2016-01-19 | 2016-01-19 | 220kV composite insulator suitable for heavy ice district |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620050366.4U CN205282200U (en) | 2016-01-19 | 2016-01-19 | 220kV composite insulator suitable for heavy ice district |
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| CN205282200U true CN205282200U (en) | 2016-06-01 |
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| CN201620050366.4U Active CN205282200U (en) | 2016-01-19 | 2016-01-19 | 220kV composite insulator suitable for heavy ice district |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105931765A (en) * | 2016-07-04 | 2016-09-07 | 安徽天达网络科技有限公司 | Composite bar-shaped suspension type insulator |
-
2016
- 2016-01-19 CN CN201620050366.4U patent/CN205282200U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105931765A (en) * | 2016-07-04 | 2016-09-07 | 安徽天达网络科技有限公司 | Composite bar-shaped suspension type insulator |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Hu Qin Inventor after: Wang Shijing Inventor after: Shu Lichun Inventor after: Jiang Xingliang Inventor after: Hu Jianlin Inventor after: Zhang Zhijin Inventor after: Yuan Wei Inventor before: Hu Qin Inventor before: Wang Shijing Inventor before: Shu Lichun Inventor before: Jiang Xingliang Inventor before: Hu Jianlin Inventor before: Zhang Zhijin |
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| COR | Change of bibliographic data |