CN203103026U - Composite insulator - Google Patents
Composite insulator Download PDFInfo
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- CN203103026U CN203103026U CN 201320006486 CN201320006486U CN203103026U CN 203103026 U CN203103026 U CN 203103026U CN 201320006486 CN201320006486 CN 201320006486 CN 201320006486 U CN201320006486 U CN 201320006486U CN 203103026 U CN203103026 U CN 203103026U
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Abstract
Disclosed in the utility model is a composite insulator that comprises an insulating tube. a sheath covering the outer side of the insulating tube, at least one shed arranged at the outer side of the sheath, and at least one flange arranged at the tail end of the insulating tube. The insulating tube has a hollow cavity; and the inside of the cavity is filled with a solid insulation medium. An open hole communicated with the cavity is arranged on the flange; a fixing element for sealing is installed in the open hole; and the insulation medium is injected into the cavity through the open hole. Because the open hole is arranged on the at least one flange, the solid insulation medium can be injected into the cavity through the open hole; and the fixing element is used for fixed installation in the open hole, thereby realizing sealing.
Description
Technical field
The utility model relates to a kind of high voltage power transmission composite insulator, specifically is the composite insulator that a kind of inside is filled with dielectric.
Background technology
What high voltage isolator generally used at present is true procelain post insulator, solid strut composite insulator, hollow gas-filled type post composite insulator and porcelain core post composite insulator.Wherein true procelain post insulator Heavy Weight transports inconvenience is installed, and the easy root that takes place ruptures and pollution flashover accident in running; The solid strut composite insulator adopts the glass-epoxy leading-drawing rod to support and interior insulation as its skeleton, and owing to the glass-epoxy material has toughness, the strain under stressed is bigger, can not satisfy the instructions for use of isolated switchgear; Hollow gas-filled type post composite insulator adopts hollow insulated tube to do column, inner blanketing gas insulate, because gas filler is prone to leakage, thus must adorn the variation of supervising device with monitoring product internal gas, but also have certain potential safety hazard; Its manufacture method of porcelain core composite post insulator is that the full skirt that the silicon rubber synthetic material is made is bonded on the porcelain core, because porcelain core is processed into without precision optical machinery, the concavo-convex silicon rubber full skirt that causes easily that presents on its surface microscopic is bonding not firm, produce phenomenons such as bubble, influence the electric property and the life-span of product.
Consider the above-mentioned defective of insulator, Chinese patent is announced No. 03131607.7, discloses a kind of high voltage power transmission composite post insulator.It is made up of flange, plug, umbrella cover, in the outer cover of plug several umbrella covers is housed, and described plug is made up of insulating case, filler, and insulating case is that epoxy glass fiber twines the hollow pipe of making.The filler of insulating case inside is the solid dielectric insulation of epoxy resin and quartz sand or crushed crude pearlite.This composite post insulator is adding man-hour, solid dielectric insulation is injected insulating case after, install flange at the insulating case two ends with binding agent, thereby realize sealing.Owing to used solid dielectric insulation, can prevent the leakage of dielectric, dependable performance.Yet this composite post insulator directly is filled into solid dielectric insulation in the insulating case, and is not easy to operate, causes the waste of dielectric when filling easily.
The utility model content
At the deficiencies in the prior art, one of the purpose of this utility model provides a kind of composite insulator of being convenient to process.
For realizing above-mentioned utility model purpose, the technological means that the utility model adopted is as follows: a kind of composite insulator, comprise insulated tube, be coated on the sheath in the described insulated tube outside, at least one is arranged on the full skirt in the described sheath outside and at least one is arranged on the flange of described insulated tube end, described insulated tube has hollow cavity, in the described cavity and in be filled with solid dielectric insulation, wherein, offer the perforate that is communicated with described cavity on the described flange, the fixture that is used to seal is installed in the described perforate, and described dielectric injects in the described cavity by described perforate.
By perforate is set on flange, thereby can easily solid dielectric insulation be injected in the cavity of insulated tube, be fixedly mounted in the perforate by fixture then, realize sealing.
Preferably, form first gap between described fixture and the described perforate, be filled with sealing substance in described first gap.By sealing substance is set further, can prevent that extraneous steam from entering insulated tube inside, improve the use of product and receive a mandate.
Preferably, described sealing substance is a silicon rubber.
Preferably, described silicon rubber is room temperature vulcanized silicone rubber.
Preferably, described fixture integral installation is gone in the described perforate, and described sealing substance covers the top of described fixture fully, and described fixture and ambient atmosphere are kept apart.
Preferably, form second gap between an end of the close described cavity of described fixture and the described perforate, be filled with adhesive in described second gap.By adhesive is set, realize secondary seal to flange.To the dual-seal of flange, improve the sealing property of composite insulator widely.
Preferably, be processed with screw thread on the described fixture, described adhesive was coated on the described screw thread before described fixture is installed.
Preferably, described adhesive is an epoxy glue.
Preferably, described perforate and described fixture are step-like, and described fixture comprises head in the vertical and extend and the less bar portion of size from described head, form first step portion in the horizontal between described head and the described bar portion; Described perforate comprises outer hole and the endoporus that cooperates respectively with the head and the bar portion of described fixture in the vertical, forms and corresponding second step portion of described first step portion in the horizontal between described outer hole and the described endoporus.
Preferably, form first gap in the horizontal between the outer hole of the head of described fixture and described perforate, be filled with sealing substance in described first gap, be arranged with sealing ring in the described bar portion, described sealing ring is folded in second gap that described first step portion and described second step portion form in the vertical.
Preferably, described sealing substance is a room temperature vulcanized silicone rubber.
Description of drawings
Structure of the present utility model and mode of operation and further purpose and advantage will be understood better by the description below in conjunction with accompanying drawing, wherein, and identical designated components identical:
Fig. 1 is the cutaway view according to the composite insulator of the utility model first execution mode, wherein, and mounting fixing parts not in the perforate of flange;
Fig. 2 is the flange of composite post insulator shown in Figure 1 and the decomposing schematic representation of fixture;
Fig. 3 is the partial sectional view after fixture shown in Figure 2 is installed on the flange;
Fig. 4 is according to the flange of the composite post insulator of the utility model second execution mode and the decomposing schematic representation of fixture;
Fig. 5 is the partial sectional view after fixture shown in Figure 4 is installed on the flange;
Fig. 6 is according to the flange of the composite post insulator of the utility model the 3rd execution mode and the decomposing schematic representation of fixture;
Fig. 7 is the partial sectional view after fixture shown in Figure 6 is installed on the flange.
Embodiment
As requested, will disclose embodiment of the present utility model here.Yet, should be understood that disclosed execution mode only is an exemplary of the present utility model here, it can be presented as various forms.Therefore, here the detail of Pi Luing is not considered to restrictive, and only be as the basis of claim and as being used for instructing those skilled in the art differently to use representational basis of the present utility model in any appropriate mode of reality, comprise the feature that disclosed various features of employing and combination may clearly not disclose here here.
As shown in Figure 1 to Figure 3, the composite post insulator 100 for the utility model first execution mode is applied to isolating switch.It comprises the insulated tube 10 of vertical setting, the sheath 11 that is coated on insulated tube 10 outsides, some flanges 13 that is arranged on the full skirt 12 in sheath 11 outsides and is arranged on insulated tube 10 two ends.Insulated tube 10 has hollow cavity 101, in the cavity 101 and in be filled with solid dielectric insulation 14.
In the present embodiment, insulated tube 10 is the glass fiber yarn wound and solidified moulding with epoxy resin-impregnated glue.Should be understood that above-mentioned insulated tube 10 also can replace with vinyl material or polyurethane material winding pipe.
In the present embodiment, sheath 11 and full skirt 12 are to be the injection moulding of material overall vacuum with the high-temperature silicon disulfide rubber, stick to the outside of insulated tube 10 then.Be understandable that sheath 11 and full skirt 12 also can divide body formed, both materials also can be selected room temperature vulcanized silicone rubber or fluid silicone rubber.
In the present embodiment, solid dielectric insulation 14 is foams of polyurethane material.Being understandable that solid dielectric insulation 14 also can be the mixture of quartz sand and epoxy resin, perhaps is the mixture of swelling perlite powder and epoxy resin.
As depicted in figs. 1 and 2, in the present embodiment, the structure that the two ends of composite post insulator 100 have flange 13, two flanges 13 respectively is identical.Flange 13 comprises pedestal 131, is connected the circle cover 132 on the pedestal 131, and is arranged on the reinforcement 133 between pedestal and the circle cover 132.Wherein, pedestal 131 is roughly in the form of annular discs, and circle cover 132 also offers several installing holes that are uniformly distributed along the circumference 134 from the middle part of pedestal 131 vertical extent on the outer peripheral edges of pedestal 131.The two ends of insulated tube 10 embed respectively in the circle cover 132 of companion flange 13, and bonding mutually.Be understandable that flange 13 also can be set to one at least, also reinforcement 133 can be set on the flange 13.
As shown in Figures 2 and 3, offer the perforate 15 that is communicated with the cavity 101 of insulated tube 10 on the flange 13, and the fixture 16 that is used to seal is installed in perforate 15.Dielectric 14 injects in the cavity 101 of insulated tube 10 by perforate 15.By perforate 15 is set on flange 13, thereby can easily dielectric 14 be injected in the cavity of insulated tubes 10, be fixedly mounted in the perforate 15 by fixture 16 then, realize sealing.
After fixture 16 was fit in the perforate 15, first step portion 163 abutted in the second step portion 153, forms first gap 17 between head 161 and the outer hole 151 in the horizontal, forms second gap 18 between bar portion 162 and the endoporus 152 in the horizontal.In order to make fixture 16 and perforate 15 form good sealing, in first gap 17, be filled with sealing substance 171, in second gap 18, be filled with adhesive 181.By in first gap 17, sealing substance 171 being set, can effectively prevent composite post insulator 100 when operation, extraneous steam enters insulated tube 10 inside, improves the use of product and receives a mandate.By in second gap 18, adhesive 181 being set, realize secondary seal to flange 13.Dual-seal is carried out in perforate 15 to flange 13, improves the sealing property of composite post insulator 100 widely.
In the present embodiment, above-mentioned sealing substance 171 is a silicon rubber, is preferably room temperature vulcanized silicone rubber; Above-mentioned adhesive 181 is an epoxy glue.Be understandable that sealing substance 171 also can be selected other materials for use, as high-temperature silicon disulfide rubber, fluid silicone rubber, fluorine silicon rubber etc.; Adhesive 181 also can select for use other materials of epoxy glue character of the same race to replace.
The flange 13 that 1. at first will be processed with the perforate 15 that is communicated with cavity 101 is installed in insulated tube 10 ends;
2. by perforate 15 dielectric 14 is injected in the cavity 101 of insulated tube 10 then;
3. be fit in the perforate 15 seal and opening 15 at last by fixture 16.
Above-mentioned steps 3. in, at first in perforate 15, pour adhesive 181 into, after fixture 16 is screwed into, adhesive 1 is filled up the gap between the dielectric 14 in fixture 16 and the cavity 101, and overflow second gap 18 that between the endoporus 152 of the bar portion 162 of fixture 16 and perforate 15, forms, play sealing function after adhesive 181 solidifies.
Particularly, in the present embodiment, fixture 16 is a bolt, and its outer surface is provided with external screw thread, and the external screw thread of perforate 15 corresponding fixtures 16 is formed with internal thread; Above-mentioned adhesive 181 is an epoxy glue, and its amount of pouring perforate 15 into reaches and is higher than flange hole screw thread three～four teeth and gets final product, and after fixture 16 was screwed into perforate 15, adhesive 181 was full of the gap between above-mentioned internal thread and the external screw thread.
Above-mentioned steps 3. in, fixture 16 also is formed with first gap 17 between the head 161 of fixture 16 and the outer hole 151 of perforate 15 after being screwed into perforate 15 and filling adhesive 181.And then, in first gap 17, insert sealing substance 171, just play the effect of dual-seal after sealing substance 171 solidifies with adhesive 181.
It may be noted that composite post insulator of the present utility model is not limited to the concrete structure in the present embodiment.The perforate of flange can only be installed sealing by fixture, also can after fixture is installed sealing substance be set, and also sealing substance and adhesive can be set simultaneously.The shape of fixture and perforate also is not limited to step-like, also can only be arranged to column, and cylinder or prism can.Fixture and perforate also can be provided with sealing ring earlier between fixture and perforate before filling sealing substance, realize the effect of dual-seal equally.
Below in conjunction with Fig. 4 and Fig. 5, second execution mode of simple declaration the utility model composite post insulator.In the present embodiment, the structural similarity of the flange 13 in the structure of flange 23 and the execution mode one, difference is that the perforate 25 on the flange 23 is cylindric.Correspondingly, the fixture in the present embodiment 26 is similarly radial dimension cylindric less than perforate 25.
The height of fixture 26 is less than the height of perforate 25, and fixture 26 is fit into after the perforate 25, and the top of fixture 26 is absorbed in the perforate 25.Form first gap 27 between the top of fixture 26 and the perforate 25, form second gap 28 between the other end of fixture 26 and the perforate 25.
Identical with first execution mode, in above-mentioned first gap 27, fill sealing substance 271, in above-mentioned second gap 28, fill adhesive 281.Specifically add man-hour, at first with second gap 28 between adhesive 281 fillings and sealing fixture 26 and the perforate 25, fill sealing substance 217 then and cover the top of fixture 26 fully, fixture 26 is kept apart with ambient atmosphere the most at last, realizes the dual-seal to perforate 25.
In the lump with reference to figure 6 and Fig. 7, the 3rd execution mode of simple declaration the utility model composite post insulator.In the present embodiment, flange 33 is provided with perforate 35, and fixture 36 is installed in the perforate 35.Identical with first execution mode, fixture 36 and perforate 35 are step-like, and fixture 36 comprises head 361, bar portion 362 and first step portion 363, and perforate 35 is hole 351, endoporus 352 and second step portion 353 outside being provided with of correspondence.
Difference is that the bar portion 362 of fixture 36 is a tight fit with the endoporus 352 of perforate 35, and fixture 36 only forms first gap 37 between the outer hole 351 of its head 361 and perforate 35.And before mounting fixing parts 36, in its bar portion 362, be arranged with sealing ring 38.After fixture 36 was installed, sealing ring 38 was folded between first step portion 363 and the second step portion 353; In first gap 37, fill sealing substance 371 and curing at last, thereby form dual-seal perforate 35.
The concrete material that it may be noted that the sealing ring 38 in the above-mentioned execution mode is not limit, and can select materials such as Ethylene Propylene Terpolymer, silicon rubber, fluorubber.
Technology contents of the present utility model and technical characterstic have disclosed as above; yet be appreciated that; under creative ideas of the present utility model; those skilled in the art can make various changes and modifications to said structure and material; comprise here disclosing separately or the combination of claimed technical characterictic, comprise other combination of these features significantly.These distortion and/or combination all fall in the related technical field of the utility model, and fall into the protection range of the utility model claim.
Claims (10)
1. composite insulator, comprise insulated tube, be coated on the sheath in the described insulated tube outside, full skirt that at least one is arranged on the described sheath outside and at least one be arranged on the flange of described insulated tube end, described insulated tube has hollow cavity, be filled with solid dielectric insulation in the described cavity, it is characterized in that: offer the perforate that is communicated with described cavity on the described flange, the fixture that is used to seal is installed in the described perforate, and described dielectric injects in the described cavity by described perforate.
2. composite insulator as claimed in claim 1 is characterized in that: form first gap between described fixture and the described perforate, be filled with sealing substance in described first gap.
3. composite insulator as claimed in claim 2 is characterized in that: described sealing substance is a silicon rubber.
4. composite insulator as claimed in claim 3 is characterized in that: described silicon rubber is room temperature vulcanized silicone rubber.
5. composite insulator as claimed in claim 2 is characterized in that: described fixture integral installation is gone in the described perforate, and described sealing substance covers the top of described fixture fully, and described fixture and ambient atmosphere are kept apart.
6. composite insulator as claimed in claim 2 is characterized in that: form second gap between an end of the close described cavity of described fixture and the described perforate, be filled with adhesive in described second gap.
7. composite insulator as claimed in claim 6 is characterized in that: be processed with screw thread on the described fixture, described adhesive was coated on the described screw thread before described fixture is installed.
8. composite insulator as claimed in claim 6 is characterized in that: described adhesive is an epoxy glue.
9. composite insulator as claimed in claim 1, it is characterized in that: described perforate and described fixture are step-like, described fixture comprises head in the vertical and extends and the less bar portion of size from described head, forms first step portion in the horizontal between described head and the described bar portion; Described perforate comprises outer hole and the endoporus that cooperates respectively with the head and the bar portion of described fixture in the vertical, forms and corresponding second step portion of described first step portion in the horizontal between described outer hole and the described endoporus.
10. composite insulator as claimed in claim 9, it is characterized in that: form first gap in the horizontal between the outer hole of the head of described fixture and described perforate, be filled with sealing substance in described first gap, be arranged with sealing ring in the described bar portion, described sealing ring is folded in second gap that described first step portion and described second step portion form in the vertical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320006486 CN203103026U (en) | 2013-01-07 | 2013-01-07 | Composite insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320006486 CN203103026U (en) | 2013-01-07 | 2013-01-07 | Composite insulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203103026U true CN203103026U (en) | 2013-07-31 |
Family
ID=48854413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320006486 Withdrawn - After Issue CN203103026U (en) | 2013-01-07 | 2013-01-07 | Composite insulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203103026U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103077785A (en) * | 2013-01-07 | 2013-05-01 | 江苏神马电力股份有限公司 | Composite insulator |
-
2013
- 2013-01-07 CN CN 201320006486 patent/CN203103026U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103077785A (en) * | 2013-01-07 | 2013-05-01 | 江苏神马电力股份有限公司 | Composite insulator |
| CN103077785B (en) * | 2013-01-07 | 2017-03-29 | 江苏神马电力股份有限公司 | Composite 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 | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130731 Effective date of abandoning: 20170329 |