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a ceramic insulator

A ceramic insulator and body technology, applied in the field of ceramic insulators, can solve the problem of loose connection between the insulator and the wire, and achieve the effects of not easy to loose and fall off, high anti-pollution flashover performance, and improved overall safety.

Active Publication Date: 2020-11-24
萍乡市环宇电瓷厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the binding of insulators and wires is prone to loose connection

Method used

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  • a ceramic insulator

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Effect test

Embodiment 1

[0042] The present invention provides a ceramic insulator, including a base 1 and a body 2; the base 1 is made of metal material, and the body 2 includes a mandrel 201 and several sheds 202;

[0043] Further, a groove 3 is provided on the top of the mandrel 201, the groove 3 is in the shape of a circular arc with a wide bottom and a narrow top, and the arc shape is larger than half a circle;

[0044] Further, rounded pyramids 4 are provided on the shed 202 near the top of the mandrel 201 , and the rounded pyramids 4 are evenly distributed on the shed 202 near the top of the mandrel 201 .

[0045] Further, the body 2 is sprayed with an antifouling flashover coating.

Embodiment 2

[0047] The antifouling flashover coating adopts fluorocarbon coating.

[0048] The fluorocarbon coating includes the following raw materials in parts by weight: 40-50 parts of fluorocarbon resin, 35-45 parts of solvent, 10-30 parts of filler, 1-10 parts of pigment, 5-10 parts of polytetrafluoroethylene powder, dispersant 0.1-1 part, 0.5-1 part of defoamer, 0.1-0.5 part of catalyst, 3-10 parts of curing agent;

[0049] The preparation process of the fluorocarbon coating is: mix the fluorocarbon resin and solvent evenly, add filler, pigment and polytetrafluoroethylene powder, add dispersant, defoamer, catalyst after grinding for 1 hour, continue grinding for 1.5 hours, add solidification The agent can be coated evenly by mechanical stirring.

[0050] The method of using the fluorocarbon coating is as follows: spray the prepared fluorocarbon coating on the surface of the insulator with a spray gun, the spraying thickness is 0.2-0.5mm, the usage amount of the coating is 100-300g / ...

Embodiment 3

[0066] Embodiment 3: the difference with embodiment 2 is:

[0067] Described filler is modified vermiculite, and its preparation method is:

[0068] (1) The vermiculite is crushed to 100 mesh, added to the ethanol solution, prepared into a suspension with a mass fraction of 3%, ultrasonicated for 10 minutes, then diphenylthiourea was added, and centrifuged after ultrasonication at 70°C for 2 hours. Wash the precipitate 2 times, then wash the precipitate 3 times with distilled water, dry the obtained solid in an oven at 60°C, and grind it through a 100-mesh sieve to obtain pretreated vermiculite;

[0069] (2) Diethylenetriamine was dissolved in water to form an aqueous solution with a mass fraction of 5%, then β-cyclodextrin and acetamidine hydrochloride were added, heated to 60°C, stirred for 3 hours, and then pretreated vermiculite was added. Raise the temperature to 80°C, react for 5 hours, cool down, wash with distilled water for 3 times, and filter with suction, the resul...

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Abstract

The invention provides a ceramic insulator and relates to the technical field of electrical elements. A groove at a top end of a core rod is a big end down circular arc, the arc is more than half of the circle, a wire is more stably fixed in the groove, a phenomenon that the wire slips off the groove after long-term use is avoided, and safe and stable operation of the distribution network is guaranteed. The ceramic insulator is advantaged in that a top end close to the core rod is provided with a rounded cone, birds are difficult to stop on the rounded cone, living lives can be effectively prevented from staying on the rounded cone, when a high voltage line is utilized, influence of the living lives on the insulator is prevented, integral safety of the insulator and the line is improved, and a user is convenient to use; anti-pollution flashover physical and chemical performance and electrical performance of the surface coating of the insulator body meet anti-pollution flashover conditions, and the ceramic insulator has high anti-pollution flashover performance and is excellent in weather resistance and water repellency.

Description

technical field [0001] The invention relates to an electrical component, in particular to a ceramic insulator. Background technique [0002] Insulators can play an important role in overhead transmission lines, and their quality determines the normal use of the entire line. If the surface of the insulator is polluted and damp to a certain extent, it will cause pollution flashover, which is a major threat to the safe operation of the power grid. Pollution flashover accidents are very harmful and cover a wide area. A large accident will often cause simultaneous tripping of multiple lines in the same area. In the early years, insulators were mostly used on utility poles, and gradually developed into a high-voltage wire connection tower with a lot of disc-shaped insulators, usually made of glass or ceramics. [0003] When the traditional insulator is connected to the wire, it is necessary to first fix the insulator on the high-voltage wire connection tower, and then bind the w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B17/38H01B17/50H01B19/00
CPCH01B17/38H01B17/50H01B19/00
Inventor 刘环忠王招兰
Owner 萍乡市环宇电瓷厂