CN103456421A - Cementing type double-umbrella-shaped and three-umbrella-shaped disk-shaped suspension type polymer composite string insulator unit - Google Patents
Cementing type double-umbrella-shaped and three-umbrella-shaped disk-shaped suspension type polymer composite string insulator unit Download PDFInfo
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- CN103456421A CN103456421A CN2013100064102A CN201310006410A CN103456421A CN 103456421 A CN103456421 A CN 103456421A CN 2013100064102 A CN2013100064102 A CN 2013100064102A CN 201310006410 A CN201310006410 A CN 201310006410A CN 103456421 A CN103456421 A CN 103456421A
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Abstract
The invention discloses a cementing type double-umbrella-shaped and three-umbrella-shaped suspension type polymer composite string insulator unit. The polymer composite string insulator unit comprises a steel cap metal element, a steel foot metal element, an insulating core element, a polymer protective sleeve and a polymer skirt. A cavity with a U-shaped section is formed in the steel cap metal element, the steel foot metal element is provided with a cone head portion matched with the cavity, the cone head portion of the steel foot metal element is arranged in the cavity of the steel cap metal element, the insulating core element is arranged between the cone head portion and the cavity, the center of the insulating core element is provided with a cementing portion which is a cavity of an inverted cone shape, the polymer protective sleeve wraps the outer surface of the insulating core element, the polymer skirt of a double-umbrella-shaped or three-umbrella-shaped structure is disposed on the outer surface of the polymer protective sleeve, the cone head portion of the steel foot metal element is integrated with the cementing portion in a cementing mode through an adhesive, and the cavity of the steel cap metal element is integrated with the cementing portion in a cementing mode through an adhesive. The polymer string insulator unit has the advantages of preventing bird damages, and being resistant to wind and sand, resistant to damages caused by external force and capable of assisting climbing.
Description
Technical field
The present invention relates to a kind of composite insulator, relate in particular to the two umbrella shapes of a kind of mucilage binding formula and three umbrella shape disc suspension polymer composite insulator string elements.
Background technology
Polymer insulator because of it in weight, survey null value, anti-pollution flashover voltage, do not reveal etc. that porcelain is compared in aspect, glass insulator has an enormous advantage and is subject to the favor of industry, high these characteristics of pollution flashover voltage especially.Research is found, has certain relation between the umbrella skirt construction of insulator and pollution flashover voltage, makes identical but its pollution flashover voltage difference of polymer insulator that umbrella skirt construction is different of other conditions.
The umbrella footpath is as follows on the impact of polymer insulator Flashover Characteristics: the umbrella footpath is strengthened, the equivalent diameter of polymer insulator increases, Flashover Characteristics is had to negative influence, although the corresponding increase of the creepage distance of polymer insulator, can improve pollution flashover voltage to a certain extent, but the degree improved is limited, causes on the contrary the utilance relative reduce of creepage distance, and excessive umbrella footpath can consume too much material, does not have economic benefit; Therefore the too small deficiency that can cause leakage distance in umbrella footpath, select the First Principles in umbrella footpath to be, selects the umbrella footpath with economic benefit guaranteeing that whole insulator meets under the prerequisite of leakage distance.
The umbrella spacing is as follows on the impact of polymer insulator Flashover Characteristics: the umbrella spacing increases, and at first can improve the contamination accumulation characteristics of polymer insulator; Secondly, can effectively suppress bridge joint between umbrella, prevent the serial connection of serious icing snowberg and retardance electric arc; The 3rd, can promote the utilance of creepage distance; But the prerequisite increased is to guarantee that whole polymer insulator has sufficient creepage distance.The umbrella spacing reduces, in the situation that the certain creepage distance that can improve polymer insulator of insulation height, but pollution flashover voltage is the linear growth with the increase of creepage distance not, the umbrella spacing is too small, especially to the bell shape product of prismatic projection is set under umbrella, bridge joint, the utilance relative reduce of creepage distance easily occur between umbrella.
Polymer insulator operation geographic range is wide, different regions have its geographical particularity, thereby cause the operating condition complexity, there is extraneous uncertain factor in polymer insulator, thereby affects the safe operation of polymer insulator in transportation, I&M process simultaneously.
Summary of the invention
The object of the present invention is to provide a kind of anti-bird pest, anti-blown sand, external force resistance to destroy and can assist and climb the two umbrella shapes of the mucilage binding formula of stepping on and three umbrella shape disc suspension polymer composite insulator string elements.
For achieving the above object, the invention provides the two umbrella shapes of a kind of mucilage binding formula and three umbrella shape disc suspension polymer composite insulator string elements, comprising: steel cap gold utensil 1, steel pin gold utensil 2, insulation chipware 3, polymer jacket 5, polymer full skirt 6; Wherein said steel cap gold utensil 1 inside is provided with the cavity that a cross section is U-shaped, and described steel pin gold utensil 2 be provided with one with the suitable conehead position of described cavity; The conehead position of described steel pin gold utensil 2 is arranged in the cavity of described steel cap gold utensil 1, and is provided with insulation chipware 3 between described conehead position and cavity; The central part of described insulation chipware 3 is provided with the mucilage binding position, and described mucilage binding position is a back taper cavity; Be coated with polymer jacket 5 on insulation chipware part 3 outer surfaces, and described polymer jacket 5 outer surfaces are provided with the polymer full skirt 6 of two umbrella shapes or three beveled structures; The conehead position of described steel pin gold utensil 2 is integrated by adhesive 4 and described mucilage binding position mucilage binding; The cavity of described steel cap gold utensil 1 is integrated by adhesive 4 and described mucilage binding position mucilage binding.
Further, described polymer full skirt 6 is two beveled structures.
Further, described polymer full skirt 6 is three beveled structures.
Further, described polymer full skirt 6 comprises two umbrella shape projections 61, and is arranged at the interval umbrella shape projection 62 between described two umbrella shape projections 61.
Further, the umbrella of described interval umbrella shape projection 62 stretches out and is less than described umbrella shape projection 61, and the difference that the umbrella of this interval umbrella shape projection 62 and umbrella shape projection 61 stretches out is greater than 15mm.
Further, the maximum nominal disk track of described umbrella shape projection 61 is 150mm～500mm, and gamp stretches out for 80mm～200mm.
Further, the top rade of described full skirt 6 is 4 °～28 °, and angle of declination is 0 °～24 °.
Further, polymer jacket 5 adopts outdoor hydrophobicity cycloaliphatic epoxy resin with the material of polymer full skirt 6.
Further, polymer jacket 5 adopts general injection or pouring technology hot setting one-shot forming on insulation chipware 3 with polymer full skirt 6.
Compared to existing technology, the two umbrella shapes of mucilage binding formula of the present invention and three umbrella shape disc suspension polymer composite insulator string elements have following beneficial effect:
(1) by the reasonable setting of the difference that the umbrella to the umbrella shape projection stretches out, the umbrella of big or small umbellate form projection stretches out, and the simulation analysis of contamination accumulation characteristics, reach the effect of disc suspension polymer composite insulator Flashover Characteristics the best, improved the pollution flashover voltage of cap and pin insulator string element series products;
(2) the two umbrella shapes of mucilage binding formula and three umbrella shape disc suspension polymer composite insulator string elements have good hydrophobicity, migration of hydrophobicity and electric property with the HCEP material, there is higher mechanical strength simultaneously, thereby make disc suspension polymer composite insulator series of products of the present invention thering is when good hydrophobicity, migration of hydrophobicity and resistant are dodged performance the anti-blown sand ability that has improved the polymer composite insulator, the ability that external force resistance destroys, can prevent the destruction of unfirmly closing to polymer insulator.Can trample on full skirt within the specific limits in case of necessity in engineering staff's work progress, thereby facilitate construction, improve the coefficient of safety in engineering staff's work progress;
(3) the two umbrella shapes of mucilage binding formula and three umbrella shape disc suspension polymer composite insulator string component structure modes are designed to the disk-shaped structure mode, product is equal to size and the electromechanical properties with tonne disk-shaped suspension porcelain or glass insulator, facilitate the transportation under the difficult operating mode of transportation, make combination type selecting, installation, maintenance and the transportation of product more quick and convenient simultaneously.
The accompanying drawing explanation
The structural representation of the two umbrella shapes of the mucilage binding formula that Fig. 1 is first embodiment of the invention and three umbrella shape disc suspension polymer composite insulator string elements;
The structural representation of the two umbrella shapes of the mucilage binding formula that Fig. 2 is second embodiment of the invention and three umbrella shape disc suspension polymer composite insulator string elements.
Embodiment
In order better to understand purpose of the present invention, structure and function, below in conjunction with accompanying drawing, the two umbrella shapes of the mucilage binding formula that the embodiment of the present invention is proposed and three umbrella shape disc suspension polymer composite insulator string elements are done further detailed description.
As shown in Figure 1, the two umbrella shapes of the mucilage binding formula that first embodiment of the invention proposes and three umbrella shape disc suspension polymer composite insulator string elements comprise: steel cap gold utensil 1, steel pin gold utensil 2, insulation chipware 3, polymer jacket 5, polymer full skirt 6; Wherein said steel cap gold utensil 1 inside is provided with the cavity that a cross section is U-shaped, and described steel pin gold utensil 2 be provided with one with the suitable conehead position of described cavity; The conehead position of described steel pin gold utensil 2 is arranged in the cavity of described steel cap gold utensil 1, and is provided with insulation chipware 3 between described conehead position and cavity; The central part of described insulation chipware 3 is provided with the mucilage binding position, and described mucilage binding position is a back taper cavity; Be coated with polymer jacket 5 on insulation chipware part 3 outer surfaces, and described polymer jacket 5 outer surfaces are provided with the polymer full skirt 6 of three beveled structures; The conehead position of described steel pin gold utensil 2 is integrated by adhesive 4 and described mucilage binding position mucilage binding; The cavity of described steel cap gold utensil 1 by adhesive 4 with narrate mucilage binding position mucilage binding and be integrated.
Wherein, steel cap gold utensil 1 can need to be converted according to installing and using with steel pin gold utensil 2 overall dimension structures.This adhesive 4 can be the adhesive such as cement or resin.
As shown in Figure 1, the polymer full skirt 6 of first embodiment of the invention is three beveled structures.That is, described polymer full skirt 6 comprises two umbrella shape projections 61, and is arranged at the interval umbrella shape projection 62 between described two umbrella shape projections 61.Wherein, can equate also can be unequal for the diameter of described two umbrella shape projections 61.The umbrella of described interval umbrella shape projection 62 stretches out and is less than described umbrella shape projection 61, and the difference that the umbrella of this interval umbrella shape projection 62 and umbrella shape projection 61 stretches out is greater than 15mm.The gamp of described umbrella shape projection 61 stretches out for 80mm～200mm, and maximum nominal disk track is 150mm～500mm.Wherein umbrella stretches out the radial distance referred between composite insulator umbrella skirt outer and sheath.
Wherein, the top rade of described full skirt 6 is 4 °～28 °, and angle of declination is 0 °～24 °.
Umbrella cover in the present invention preferably adopts HCEP(Hydrophobic Cycloaliphatic Epoxy: the hydrophobicity alicyclic epoxide compound) material, thereby make disc suspension polymer insulation substring element of the present invention when thering is good hydrophobicity, migration of hydrophobicity and electric property, the anti-blown sand ability of polymer insulator, the ability that external force resistance destroys have been improved, can prevent the destruction of unfirmly closing to the polymer insulator umbrella cover, and make within the specific limits polymer insulator have can to assist to climb to step on performance, improved the coefficient of safety in the work progress.
The two umbrella shapes of mucilage binding formula and the three umbrella shape disc suspension polymer composite insulator string elements of second embodiment of the invention have been shown in Fig. 2.As seen from Figure 2, the difference of itself and the first embodiment only is that full skirt adopts two beveled structures.All the other same sections repeat no more.
In sum, the two umbrella shapes of the mucilage binding formula of unfirmly closing, anti-blown sand and three umbrella shape disc suspension polymer composite insulator string elements are dodged, prevented to a kind of resistant of the present invention, appropriate design by difference that umbrella skirt construction, umbrella spacing, umbrella shape projection and interval umbrella shape projection are stretched out, utilize the simulation analysis of contamination accumulation characteristics to calculate simultaneously, optimize umbrella skirt construction, obtain the effect of Flashover Characteristics the best.
Insulation chipware 3 use HCEP materials have good hydrophobicity, migration of hydrophobicity and electric property, there is higher mechanical strength simultaneously, thereby the present invention has improved the ability that anti-blown sand ability, external force resistance destroy when having good hydrophobicity, migration of hydrophobicity and electric property, can prevent the destruction of unfirmly closing to the insulation chipware, and make within the specific limits this element have can to assist to climb to step on performance, facilitate engineering staff's construction, improved the coefficient of safety in the work progress; Simultaneously product has does not need to survey null value, the advantage such as does not reveal, thereby reduces maintenance cost; By being the disk-shaped structure mode by the two umbrella shapes of mucilage binding formula and three umbrella shape disc suspension polymer composite insulator string element design, product is equal to size and the performance with tonne disk-shaped suspension porcelain or glass insulator, facilitate the transportation under the difficult operating mode of transportation, make combination type selecting, installation, maintenance and the transportation of product more quick and convenient simultaneously.Thereby meet high pressure, superhigh pressure and extra-high voltage grid; The user demand of electric railway and high-speed electric railway and railway traffic contact network.
Abovely by specific embodiment, the present invention is further described; but it should be understood that; here concrete description; should not be construed as the restriction to the spirit and scope of the invention; the one of ordinary skilled in the art, reading the various modifications of after this specification, above-described embodiment being made, belongs to the scope that the present invention protects.
Claims (9)
1. the two umbrella shapes of a mucilage binding formula and three umbrella shape disc suspension polymer composite insulator string elements, is characterized in that, comprising: steel cap gold utensil (1), steel pin gold utensil (2), chipware (3), polymer jacket (5), polymer full skirt (6) insulate; Wherein said steel cap gold utensil (1) inside is provided with the cavity that a cross section is U-shaped, and described steel pin gold utensil (2) be provided with one with the suitable conehead position of described cavity; The conehead position of described steel pin gold utensil (2) is arranged in the cavity of described steel cap gold utensil (1), and is provided with insulation chipware (3) between described conehead position and cavity; The central part of described insulation chipware (3) is provided with the mucilage binding position, and described mucilage binding position is a back taper cavity; Be coated with polymer jacket (5) on insulation chipware part (3) outer surface, and described polymer jacket (5) outer surface is provided with the polymer full skirt (6) of two umbrella shapes or three beveled structures; The conehead position of described steel pin gold utensil (2) is integrated by adhesive (4) and described mucilage binding position mucilage binding; The cavity of described steel cap gold utensil (1) is integrated by adhesive (4) and described mucilage binding position mucilage binding.
2. the two umbrella shapes of mucilage binding formula according to claim 1 and three umbrella shape disc suspension polymer composite insulator string elements, is characterized in that, described polymer full skirt (6) is two beveled structures.
3. the two umbrella shapes of mucilage binding formula according to claim 1 and three umbrella shape disc suspension polymer composite insulator string elements, is characterized in that, described polymer full skirt (6) is three beveled structures.
4. the two umbrella shapes of mucilage binding formula according to claim 3 and three umbrella shape disc suspension polymer composite insulator string elements, it is characterized in that, described polymer full skirt (6) comprises two umbrella shape projections (61), and is arranged at the interval umbrella shape projection (62) between described two umbrella shape projections (61).
5. the two umbrella shapes of mucilage binding formula according to claim 4 and three umbrella shape disc suspension polymer composite insulator string elements, it is characterized in that, the umbrella of described interval umbrella shape projection (62) stretches out and is less than described umbrella shape projection (61), and the difference that the umbrella of this interval umbrella shape projection (62) and umbrella shape projection (61) stretches out is greater than 15mm.
6. according to the two umbrella shapes of the described mucilage binding formula of claim 4 or 5 and three umbrella shape disc suspension polymer composite insulator string elements, it is characterized in that, the maximum nominal disk track of described umbrella shape protruding (61) is 150mm～500mm, and gamp stretches out for 80mm～200mm.
7. according to the two umbrella shapes of the described mucilage binding formula of claim 1-5 any one and three umbrella shape disc suspension polymer composite insulator string elements, it is characterized in that, the top rade of described polymer full skirt (6) is 4 °～28 °, and angle of declination is 0 °～24 °.
8. the two umbrella shapes of mucilage binding formula according to claim 1 and three umbrella shape disc suspension polymer composite insulator string elements, is characterized in that, polymer jacket (5) adopts outdoor hydrophobicity cycloaliphatic epoxy resin with the material of polymer full skirt (6).
9. the two umbrella shapes of mucilage binding formula according to claim 1 and three umbrella shape disc suspension polymer composite insulator string elements, it is characterized in that, polymer jacket (5) adopts general injection or pouring technology in the upper hot setting one-shot forming of insulation chipware (3) with polymer full skirt (6).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100064102A CN103456421A (en) | 2013-01-09 | 2013-01-09 | Cementing type double-umbrella-shaped and three-umbrella-shaped disk-shaped suspension type polymer composite string insulator unit |
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| CN2013100064102A CN103456421A (en) | 2013-01-09 | 2013-01-09 | Cementing type double-umbrella-shaped and three-umbrella-shaped disk-shaped suspension type polymer composite string insulator unit |
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| CN103456421A true CN103456421A (en) | 2013-12-18 |
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| CN2013100064102A Pending CN103456421A (en) | 2013-01-09 | 2013-01-09 | Cementing type double-umbrella-shaped and three-umbrella-shaped disk-shaped suspension type polymer composite string insulator unit |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103646731A (en) * | 2013-12-23 | 2014-03-19 | 奉新国光电气有限公司 | Composite bracket insulator for metros |
| CN103839632A (en) * | 2014-02-26 | 2014-06-04 | 河北荣森电气有限公司 | Cementing type composite insulator chain element with double-umbrella-shaped and three-umbrella-shaped disk suspension type polymer |
| CN105355340A (en) * | 2015-10-23 | 2016-02-24 | 南京电气（集团）有限责任公司 | Glass composite insulator and manufacturing method therefor |
| CN106971798A (en) * | 2017-04-10 | 2017-07-21 | 国网河南省电力公司电力科学研究院 | A kind of combined anti-unfirmly closing composite insulator |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103646731A (en) * | 2013-12-23 | 2014-03-19 | 奉新国光电气有限公司 | Composite bracket insulator for metros |
| CN103839632A (en) * | 2014-02-26 | 2014-06-04 | 河北荣森电气有限公司 | Cementing type composite insulator chain element with double-umbrella-shaped and three-umbrella-shaped disk suspension type polymer |
| CN105355340A (en) * | 2015-10-23 | 2016-02-24 | 南京电气（集团）有限责任公司 | Glass composite insulator and manufacturing method therefor |
| CN106971798A (en) * | 2017-04-10 | 2017-07-21 | 国网河南省电力公司电力科学研究院 | A kind of combined anti-unfirmly closing composite insulator |
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Application publication date: 20131218 |