Influence of oxidizer on performance of hot aerosol fire-extinguishing agent

被引：0

作者：

Zheng W.-F. ^{[1
]}

Yan M.-Q. ^{[1
]}

Qin L. ^{[2
]}

Zhang L. ^{[3
]}

He D. ^{[2
]}

Li Y. ^{[1
]}

Pan R.-M. ^{[1
]}

机构：

[1] School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing

[2] Institute of Science Research, Gansu Yinguang Chemical Industry Group Co., Ltd., Baiyin, 730900, Gansu

[3] Shanghai Fire Research Institute of MPS, Shanghai

来源：

Zheng, Wen-Fang (zwf198181@163.com) | 2016年 / Beijing Institute of Technology卷 / 25期

基金：

中国国家自然科学基金;

关键词：

Combustion; Fire-extinguishing; Hot aerosol fire-extinguishing agent; Oxidizer; Thermal decomposition;

D O I：

10.15918/j.jbit1004-0579.201625.S118

中图分类号：

学科分类号：

摘要：

Hot aerosol fire-extinguishing agent is a safe and efficient alternative to the Halons which developed from military pyrotechnics. The oxidizer serves as an important part of the hot aerosol fire extinguishing agent. In order to research the influence of oxidizer on the performance of hot aerosol fire-extinguishing agent, three tests included combustion test, local fire extinguishing test and thermal analysis test were taken to meet this target. The main formulation of the hot aerosol fire-extinguishing agent is potassium nitrate (strontium nitrate), dicyandiamide and phenolic resin. The results showed that when using potassium nitrate as oxidizer, the combustion rate of the agent increases overall and the residues after burning decreases as potassium nitrate content increases. And the higher the potassium nitrate content, the shorter the fire extinguishing time. The agents based only on strontium nitrate have low combustion rates, and it is difficult or even unable to be ignited. The agents based on the mixture of potassium nitrate and strontium nitrate have better combustion rate and extinguishing efficiency, but when the proportion of strontium nitrate in the mixture is too high, the agent cannot be used for fire-fighting. And there must be a most suitable content ratio between potassium nitrate and strontium nitrate. The decomposition temperature of the fire-extinguishing agent becomes increasingly high with an increase of strontium nitrate content. © 2016 Beijing Institute of Technology.

引用

页码：96 / 102

页数：6

共 10 条

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