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Porcelain insulator for low temperature and high voltage power transmission and preparation method thereof

A technology for porcelain insulators and high-voltage power transmission, applied in the field of porcelain insulators, can solve problems such as complex raw material components, and achieve the effects of improving dielectric properties, strengthening bonding properties, strength and low temperature resistance.

Active Publication Date: 2021-06-29
湖南兴诚电瓷电器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, on the one hand, its raw material composition is complex, and at the same time, the cold resistance of the prepared porcelain insulator can be further improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] A porcelain insulator for low-temperature and high-voltage power transmission. The porcelain insulator includes porcelain parts of the porcelain insulator; 18 parts of zirconium / kaolin composite material, 12 parts of fluorapatite, 2.2 parts of cerium oxide / lanthanum oxide coated nano-boron nitride, and 4.5 parts of sintering aid.

[0046] The above-mentioned zirconia / kaolin composite material is prepared by the following method: add 10 parts of kaolin to 1 part of zirconia sol, mix evenly and place it in a grinder to grind for 4 hours to obtain a mixture; after standing the mixture for 3 days, Place it in a muffle furnace, calcinate at 800°C for 3 hours, cool down to room temperature with the furnace, and grind to obtain a zirconia / kaolin composite material.

[0047] Nano-boron nitride coated with cerium oxide / lanthanum oxide is prepared by the following method: add 10 parts of nano-boron nitride with a particle size of 30-80nm and 20 parts of deionized water into the r...

Embodiment 2

[0057] A porcelain insulator for low-temperature and high-voltage power transmission. The porcelain insulator includes porcelain parts of the porcelain insulator; 16 parts of zirconium / kaolin composite material, 10 parts of fluoroapatite, 1.5 parts of cerium oxide / lanthanum oxide coated nano-boron nitride, and 3 parts of sintering aid.

[0058] The above-mentioned zirconia / kaolin composite material is prepared by the following method: 1 part of zirconia sol is added with 13 parts of kaolin, mixed evenly and placed in a grinder to grind for 3 hours to obtain a mixture; after standing the mixture for 4 days, Place it in a muffle furnace, calcinate at 780°C for 4 hours, cool down to room temperature with the furnace, and grind to obtain a zirconia / kaolin composite material.

[0059] Nano-boron nitride coated with cerium oxide / lanthanum oxide is prepared by the following method: add 10 parts of nano-boron nitride with a particle size of 30-80nm and 20 parts of deionized water into...

Embodiment 3

[0069] A porcelain insulator for low-temperature and high-voltage power transmission. The porcelain insulator includes porcelain parts of the porcelain insulator; the porcelain parts of the porcelain insulator include the following raw materials in parts by weight: 36 parts of alumina, 25 parts of calcined high-alumina bauxite, 5 parts of potassium feldspar, dioxide 15 parts of zirconium / kaolin composite material, 13 parts of fluorapatite, 2 parts of cerium oxide / lanthanum oxide coated nano-boron nitride, and 4 parts of sintering aid.

[0070] The preparation method of the above-mentioned zirconia / kaolin composite material is the same as that in Example 1. The preparation method of nano boron nitride coated with cerium oxide / lanthanum oxide is the same as that in Example 1. The sintering aid is made by mixing sodium silicate and samarium oxide at a mass ratio of 1:0.5.

[0071]The preparation method of the above-mentioned porcelain insulator for high-voltage and low-temperatu...

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Abstract

The invention provides a porcelain insulator for low temperature and high voltage power transmission and a preparation method thereof. The porcelain insulator includes a porcelain insulator porcelain piece; the porcelain insulator porcelain piece includes the following raw materials: alumina, calcined high alumina bauxite, potassium feldspar, zirconium dioxide / Kaolin composite material, fluorapatite, cerium oxide / lanthanum oxide coated nano-boron nitride, sintering aids; the porcelain insulators are also provided with a strengthening layer and a self-cleaning layer in sequence; the coating used for the strengthening layer is mixed with the following raw materials Made: Nano alumina sol, cerium oxide / SiO 2 Coated graphene oxide composite material, aluminum dihydrogen phosphate, nano-concave-convex clay, nano-boron nitride; the coating used in the self-cleaning layer is made by mixing the following raw materials: lanthanum / cerium co-doped titanium dioxide sol, nano-alumina sol, needle Wollastonite, four needle-shaped zinc oxide whiskers. The porcelain insulator prepared by the invention has good weather resistance, is suitable for long-term use in extremely cold regions, and has strong anti-pollution performance and excellent mechanical performance.

Description

technical field [0001] The invention relates to the technical field of porcelain insulators, in particular to a low-temperature-resistant and high-voltage porcelain insulator for power transmission and a preparation method thereof. Background technique [0002] Electricity is the most widely used secondary energy in modern society. The safe, stable operation and sufficient supply of electric power are important guarantees for the sustainable development of the national economy. The current transmission lines are divided into two categories: one is underground cables, and the other is overhead lines. Underground cables are transmission lines that bury armored insulated conductors underground, and are limited due to their high insulation level and price. The overhead line is a transmission line in which bare conductors are suspended on the supporting poles and towers with insulators. The structure and equipment of the overhead transmission line are simple, easy to manufacture...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/10C04B35/628C04B41/86C04B41/89C03C8/00H01B3/12
CPCC03C8/00C04B35/10C04B35/62815C04B41/009C04B41/5022C04B41/52C04B41/86C04B41/89C04B2235/3212C04B2235/3227C04B2235/3229C04B2235/3244C04B2235/3472C04B2235/349C04B2235/386C04B2235/5454H01B3/12C04B41/5064C04B41/5037C04B41/5031C04B41/5001C04B41/5035C04B41/5024C04B41/5049
Inventor 黎茂凯黎曼
Owner 湖南兴诚电瓷电器有限公司
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