CN202126894U - Framework type pillar composite insulator - Google Patents
Framework type pillar composite insulator Download PDFInfo
- Publication number
- CN202126894U CN202126894U CN2011201972727U CN201120197272U CN202126894U CN 202126894 U CN202126894 U CN 202126894U CN 2011201972727 U CN2011201972727 U CN 2011201972727U CN 201120197272 U CN201120197272 U CN 201120197272U CN 202126894 U CN202126894 U CN 202126894U
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- insulator
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- connecting plate
- gold utensil
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Abstract
The utility model discloses a framework type pillar composite insulator composed of at least connected two insulator units. The insulator unit comprises a connecting board and at least one insulator main body. The insulator main body comprises a core rod, a composite insulating silicon rubber umbrella shroud, an upper hardware flange and a lower hardware flange respectively connected to two ends of the core rod. The first insulator unit comprises an insulator main body and a first connecting board connected at the lower end. The second insulator unit comprises 2 to 6 insulator main bodies and a second connecting board connected at the lower end. The practical features and improvements of the utility model comprises: firstly, the anti-bending strength is high, the utmost anti-bending load can reach 20 KN, thus the supervoltage electric power system is in the application range; secondly, the insulator is assembled one and can be detached in transportation to avoid damage, the transportation and assembly are convenient; thirdly, the insulator main body is made by mature production process and the cost is low.
Description
Technical field
The utility model relates to high voltage power transmission and transforming station system B-C post composite insulator.
Background technology
Post insulator is widely used on the transmission line of power plant and transformer station, is used for supporting and fixing transmission line, and makes transmission line and ground insulation.For satisfying China's needs of economic development, increasing superhigh pressure (more than the 330kV) power transmission and transformation station is built up, and the transmission line voltage in this type electric power system is high, Heavy Weight; Required the post insulator of support and insulating effect must possess good withstand voltage and high bending resistance (high bending resistance load), the main at present pillar porcelain insulator that adopts, it is traditional insulator product; With the pottery is insulating material; Can satisfy the requirement of anti-superhigh pressure and high bending resistance, but have following defective: 1, anti-pollution poor ability, long-time its ceramic insulating surface of back that exposes can adhere to dust etc.; In case wet weather or rainy; Ceramic surface will be moistened by water enchroachment (invasion), and hydrophobicity reduces, and flashover takes place easily; 2, big, the Heavy Weight of volume, manufacturing difficulty, cost are high; 3, have brittle break, the transportation, installation, maintenance expense is high.Particularly receive the restriction of its anti-pollution ability, along with expanding economy, air pollution increases the weight of, and pillar porcelain insulator has been difficult to satisfy environmental demand.
Composite insulator is as insulator product of new generation; Its main body usually by plug, be wrapped in the compound inslation silicone rubber sleeve of mandrel outer and gold utensil or flange that two ends have are formed; Overcome the defective of porcelain insulator product; Have numerous advantages such as in light weight, difficult fragmentation, good, the no zero value detection problem of anti-pollution characteristic, be widely used in the electric power system of China, particularly in the filthy serious area of environment.The plug of composite insulator adopts isometrical solid epoxy glass fiber winding pipe usually, plays the bending resistance effect, and its diameter is big more; The bending resistance of giving composite insulator is strong more, still, receives the restriction of existing composite electric insulator core bar manufacturing process; Diameter of mandrel generally can only be accomplished 150mm; The bending resistance of the composite insulator that is made by the plug of this size is limited, can only be applicable to the electric pressure below the 220kV, can't be applied to be higher than the superhigh pressure grade of 220kV.
Summary of the invention
The utility model purpose is that the existing post composite insulator bending resistance of solution is poor; Can't be applicable to the problem of ultrahigh voltage power system; Propose a kind of framework type post composite insulator, its bending resistance is strong, and maximum bending strength (bending resistance load) can reach 20kN; Each item traditional performance also meets the requirements, in the electric power system that is applied to superhigh pressure even ultra high voltage that can be stable.
The utility model is realized through following technical scheme:
A kind of framework type post composite insulator; Be formed by connecting at least 2 insulator unit; The insulator unit includes 1 connecting plate and the sub-main body of at least 1 insulated; The insulator main body includes plug, is wrapped in the compound inslation silicon rubber full skirt cover of mandrel outer, the upper end gold utensil flange that is connected to the plug two ends and lower end gold utensil flange, and the diameter of mandrel of insulator main body is 50～150mm, it is characterized in that:
The first insulator unit, the first insulator unit comprises the sub-main body of an insulated and first connecting plate, the lower end gold utensil flange of this insulator main body is connected in the center of first connecting plate;
The second insulator unit; The second insulator unit comprises 2～6 the isometric insulator main bodys and second connecting plate; The lower end gold utensil flange of its each insulator main body is connected on second connecting plate, and the upper end gold utensil flange of its each insulator main body is connected on first connecting plate of the first insulator unit the first insulator unit prolonged and connects;
The two ends gold utensil flange of the insulator main body of the second insulator unit is in line respectively, equilateral triangle or regular polygon are distributed on first connecting plate and second connecting plate, and the center of first connecting plate and second connecting plate is 100～500mm to the distance between center line of insulator main body.
Prioritization scheme; In order to make composite insulator have enough height; Also can increase by the 3rd insulator unit; The 3rd insulator unit comprises 2～6 isometric insulator main bodys and the 3rd connecting plate, and the lower end gold utensil flange of its each insulator main body is connected on the 3rd connecting plate, and the upper end gold utensil flange of its each insulator main body is connected on second connecting plate of the second insulator unit the second insulator unit prolonged and connects.
The two ends gold utensil flange of the insulator main body of the 3rd insulator unit is in line respectively, equilateral triangle or regular polygon are distributed on second connecting plate and the 3rd connecting plate, and the center of second connecting plate and the 3rd connecting plate is 100～500mm to the distance between center line of insulator main body.
Further prioritization scheme, the insulator main body upper end gold utensil flange of the first insulator unit is connected with grading ring.
Satisfying under the overpressure resistant prerequisite; The utility model utilizes the rational geometric distributions of insulator main body of the second insulator unit and the 3rd insulator unit; Overcome the weak defective of single composite insulator main body bending strength; Effectively improve the mechanical strength of composite insulator, guaranteed the distance on superhigh pressure electric wire and ground; In the use; The insulator main body of the first insulator unit directly contacts extra high voltage system; On the upper end gold utensil flange of the composite insulator main body of this element, grading ring is installed; Help the distribution of even extra-high pressure (electric field) on gold utensil, make the composite insulator pressurized even, avoid too high voltages to damage the insulator main body; Can be in the utility model according to the electric pressure in the installation environment; Satisfy different needs through rational insulator main body quantity and compound mode; Be mainly used on the electric wire in the power transmission and transformation system of above superhigh pressure of 330kV and ultra high voltage, also can be applicable to the support and the insulation of equipment such as isolating switch, trap in this system.
The utlity model has following substantive distinguishing features and marked improvement:
1, bending resistance is strong, and maximum bending resistance load reaches 20kN, is applicable to the electric power system that the superhigh pressure grade is above, and the instead pillar porcelain insulator has the strong characteristics of durability against pollution;
2, the utility model is a modular construction, can disperse transportation, avoids damage in transit, transportation and easy for installation;
3, the insulator main body of the utility model is made by existing ripe production technology, and production cost is low.
Description of drawings
Fig. 1 is the utility model (two-part) structural representation.
Fig. 2 is an insulator agent structure sketch map.
Fig. 3 is an insulator cellular construction sketch map.
Fig. 4 is the utility model (syllogic) structural representation.
Embodiment
Embodiment one
With reference to figure 1 and Fig. 2, a kind of framework type post composite insulator is formed by connecting the first insulator unit 10 and the second insulator unit 20.
The first insulator unit 10 comprises the sub-main body 1 of an insulated and first connecting plate 2; Insulator main body 1 is made up of plug and the compound inslation silicon rubber full skirt cover that is wrapped in mandrel outer; The diameter of mandrel of insulator main body 1 is 50～150mm, and the two ends of insulator main body 1 have upper end gold utensil flange 11 and lower end gold utensil flange 12 respectively;
The lower end gold utensil flange 12 of insulator main body 1 is connected in the center of first connecting plate 2, and insulator main body 1 upper end gold utensil flange 11 is connected with grading ring 3;
The second insulator unit 20 comprises the sub-main body 1 of 3 insulated (quantity that can design insulator main body 1 as required is 2～6) and second connecting plate 4; The lower end gold utensil flange 12 of its each insulator main body 1 is connected on second connecting plate 4; The upper end gold utensil flange 11 of its each insulator main body 1 is connected on first connecting plate 2 of the first insulator unit 10 the first insulator unit 10 prolonged and connects, and the two ends gold utensil flange of 3 insulator main bodys 1 becomes equilateral triangle to be distributed in first connecting plate 2 and second connecting plate 4.
The composite insulator of present embodiment can design according to the needs of multiple voltage grade; When satisfying creepage distance; Make the composite insulator of present embodiment have enough bending resistance loads; To guarantee the dry arcing distance of composite insulator; Because each item performance of composite insulator is installed according to electric power system place Environment Design, it is very big influenced by pollution level, local climate condition and surrounding buildings thing or Gao Shu, the high mountain etc. of environment, and present embodiment is just listed out the partial parameters of the composite insulator that is applicable to 500 kV voltages.
See table 1.
Embodiment two
In conjunction with reference to figure 3 and Fig. 4, a kind of framework type post composite insulator is formed by connecting the first insulator unit 10, the second insulator unit 20 and the 3rd insulator unit 30.Wherein the first insulator unit 10 and the second insulator unit 20 be connected identical with embodiment one.
The 3rd insulator unit 30 comprises sub-main body 1 of 3 insulated (quantity that can design insulator main body 1 as required is 2～6) and the 3rd connecting plate 5; The lower end gold utensil flange 12 of its each insulator main body 1 is connected on the 3rd connecting plate 5; The upper end gold utensil flange 11 of its each insulator main body 1 is connected in as on second connecting plate 4 of Fig. 1 the second insulator unit 20 being prolonged connection, and the gold utensil flange of 3 insulator main bodys becomes equilateral triangle to be distributed in second connecting plate 4 and the 3rd connecting plate 5.Present embodiment is an example with the composite insulator that is applicable to 500 kV voltages, and design parameter is seen table 2.
Claims (6)
1. framework type post composite insulator; Be formed by connecting at least 2 insulator unit; The insulator unit includes 1 connecting plate and the sub-main body of at least 1 insulated; The insulator main body comprises plug, is wrapped in the compound inslation silicon rubber full skirt cover of mandrel outer, the upper end gold utensil flange that is connected to the plug two ends and lower end gold utensil flange, and the diameter of mandrel of insulator main body is 50～150mm, it is characterized in that:
The first insulator unit, the first insulator unit comprises the sub-main body of an insulated and first connecting plate, the lower end gold utensil flange of this insulator main body is connected in the center of first connecting plate;
The second insulator unit; The second insulator unit comprises 2～6 the isometric insulator main bodys and second connecting plate; The lower end gold utensil flange of its each insulator main body is connected on second connecting plate, and the upper end gold utensil flange of its each insulator main body is connected on first connecting plate of the first insulator unit the first insulator unit prolonged and connects.
2. framework type post composite insulator according to claim 1; It is characterized in that: also comprise the 3rd insulator unit; The 3rd insulator unit comprises 2～6 isometric insulator main bodys and the 3rd connecting plate; The lower end gold utensil flange of its each insulator main body is connected on the 3rd connecting plate, and the upper end gold utensil flange of its each insulator main body is connected on second connecting plate of the second insulator unit the second insulator unit prolonged and connects.
3. framework type post composite insulator according to claim 2; It is characterized in that: the upper end gold utensil flange and the lower end gold utensil flange of the insulator main body of the 3rd insulator unit is in line respectively, equilateral triangle or regular polygon are distributed on second connecting plate and the 3rd connecting plate, and the center of second connecting plate and the 3rd connecting plate is 100～500mm to the distance between center line of insulator main body.
4. according to claim 1 or 2 or 3 described framework type post composite insulators; It is characterized in that: the upper end gold utensil flange and the lower end gold utensil flange of the insulator main body of the second insulator unit is in line respectively, equilateral triangle or regular polygon are distributed on first connecting plate and second connecting plate, and the center of first connecting plate and second connecting plate is 100～500mm to the distance between center line of insulator main body.
5. according to claim 1 or 2 or 3 described framework type post composite insulators, it is characterized in that: the insulator main body upper end gold utensil flange of the first insulator unit is connected with grading ring.
6. framework type post composite insulator according to claim 4 is characterized in that: the insulator main body upper end gold utensil flange of the first insulator unit is connected with grading ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201972727U CN202126894U (en) | 2011-06-13 | 2011-06-13 | Framework type pillar composite insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201972727U CN202126894U (en) | 2011-06-13 | 2011-06-13 | Framework type pillar composite insulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202126894U true CN202126894U (en) | 2012-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201972727U Expired - Lifetime CN202126894U (en) | 2011-06-13 | 2011-06-13 | Framework type pillar composite insulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202126894U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102290161A (en) * | 2011-06-13 | 2011-12-21 | 广州市迈克林电力有限公司 | Frame type composite post insulator |
| CN103985486A (en) * | 2014-03-31 | 2014-08-13 | 国家电网公司 | Extra-high voltage composite insulator |
-
2011
- 2011-06-13 CN CN2011201972727U patent/CN202126894U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102290161A (en) * | 2011-06-13 | 2011-12-21 | 广州市迈克林电力有限公司 | Frame type composite post insulator |
| CN102290161B (en) * | 2011-06-13 | 2013-11-20 | 广州市迈克林电力有限公司 | Frame type composite post insulator |
| CN103985486A (en) * | 2014-03-31 | 2014-08-13 | 国家电网公司 | Extra-high voltage composite insulator |
| CN103985486B (en) * | 2014-03-31 | 2016-06-08 | 国网江苏省电力公司盐城供电公司 | A kind of extra-high voltage combined insulator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120125 Effective date of abandoning: 20131120 |
|
| RGAV | Abandon patent right to avoid regrant |