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A functionally graded arc extinguishing nozzle and its preparation method

A technology of arc extinguishing nozzle and functional gradient, which is applied in the direction of high-voltage air circuit breakers, circuits, high-voltage/high-current switches, etc., can solve problems such as inability to take into account the use requirements, achieve good performance, excellent gas production performance, and meet installation requirements and the effect of breaking the requirements for the use of

Active Publication Date: 2019-12-06
HENAN PINGGAO ELECTRIC +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The high-voltage circuit breaker arc extinguishing nozzle disclosed in this patent has excellent mechanical properties, but all parts of it are in the same formula system, which cannot take into account various application requirements

Method used

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  • A functionally graded arc extinguishing nozzle and its preparation method
  • A functionally graded arc extinguishing nozzle and its preparation method
  • A functionally graded arc extinguishing nozzle and its preparation method

Examples

Experimental program
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Effect test

Embodiment 1

[0050] The functional gradient type arc extinguishing nozzle of this embodiment, such as figure 2 As shown, it includes the first functional layer 11, the second functional layer 22, and the third functional layer 33 arranged in sequence along the axial direction; wherein the first functional layer and the third functional layer are both polytetrafluoroethylene; the second functional layer consists of The composition is composed of the following mass percentages: 95% polytetrafluoroethylene and 5% boron nitride.

[0051] The preparation method of the functionally graded arc extinguishing nozzle of this embodiment comprises the following steps:

[0052] 1) According to the size of the different functional layers of the arc extinguishing nozzle, calculate the quality of the raw materials required for each functional layer and weigh them for later use; mix the raw materials corresponding to the second functional layer, polytetrafluoroethylene and boron nitride, for later use;

...

Embodiment 2

[0056] The functionally graded arc extinguishing nozzle of this embodiment includes a first functional layer, a second functional layer, and a third functional layer arranged in sequence along the axial direction; wherein both the first functional layer and the third functional layer are polytetrafluoroethylene; The second functional layer is composed of the following components in mass percentage: 99.7% polytetrafluoroethylene and 0.3% molybdenum disulfide.

[0057] The preparation method of the functionally graded arc extinguishing nozzle of this embodiment comprises the following steps:

[0058] 1) According to the size of the different functional layers of the arc extinguishing nozzle, calculate the quality of the raw materials required for each functional layer and weigh them for later use; mix the raw materials corresponding to the second functional layer, polytetrafluoroethylene and molybdenum disulfide, for later use;

[0059] 2) Put the raw material polytetrafluoroeth...

Embodiment 3

[0062] The functionally graded arc extinguishing nozzle of this embodiment includes a first functional layer, a second functional layer, and a third functional layer arranged in sequence along the axial direction, wherein the first functional layer is composed of polytetrafluoroethylene and boron nitride, polytetrafluoroethylene The mass ratio of tetrafluoroethylene and boron nitride is 95:5; the third functional layer is polytetrafluoroethylene; the second functional layer is composed of the following components in mass percentage: 97% polytetrafluoroethylene and 3% molybdenum disulfide .

[0063] The preparation method of the functionally graded arc extinguishing nozzle of this embodiment comprises the following steps:

[0064] 1) According to the size of the different functional layers of the arc extinguishing nozzle, calculate and weigh the mass of raw materials required for each functional layer, mix the raw materials Teflon and boron nitride corresponding to the first fu...

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Abstract

The invention relates to a functional gradient type quenching nozzle and a preparation method thereof, and belongs to the technical field of the high voltage circuit breaker. The functional gradient type quenching nozzle comprises a first functional layer, a second functional layer and a third functional layer which are arranged in turn along the axial direction. The second functional layer is composed of teflon and inorganic filters. At least one of the first functional layer and the third functional layer is composed of the Teflon. According to the functional gradient type quenching nozzle,three functional layers are used, different functions of different parts of the quenching nozzle can be realized and the performance of each part of the quenching nozzle can be optimized so that ablative resistance, mechanical toughness and gas production performance are great, breaking, movement, ablation and other performance of the circuit breaker are ensured to be great and the use requirements of installation and breaking of the high voltage switch circuit breaker can also be met.

Description

technical field [0001] The invention relates to a functional gradient arc extinguishing nozzle and a preparation method thereof, belonging to the technical field of high-voltage circuit breakers. Background technique [0002] The arc extinguishing nozzle is mainly used in the arc extinguishing chamber of the high-voltage switch circuit breaker. It is responsible for blowing out the arc during the opening and closing process of the circuit breaker. The arc extinguishing nozzle is required to have functions such as ablation resistance, gas production, and mechanical toughness. The structure of the arc extinguishing nozzle in the prior art is as figure 1 As shown, it includes the first zone 1, the second zone 2, and the third zone 3, in which the first zone can be the installation zone and the gas production zone, and it is required to be a material with high mechanical performance or good gas production performance. The second area is the ablation-resistant area, which is req...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H33/04H01H11/00B29C67/04C08L27/18C08K3/38C08K3/30C08K3/22
CPCB29C67/04C08K3/22C08K3/30C08K3/38C08K2003/2227C08K2003/3009C08K2003/385H01H11/00H01H33/04C08L27/18
Inventor 杨保利吴明清王晶张佩荆娟王玉杰卢银花
Owner HENAN PINGGAO ELECTRIC
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