亚氯酸钠助燃特性试验分析研究
Experimental analysis and research on the combustion supporting characteristics of sodium chlorite
施云献1
作者信息
- 1. 天津市河东区消防救援支队,天津 300000
- 折叠
摘要
为了研究亚氯酸钠的防火措施,首先,通过模拟试验研究了不同引火源和湿度条件下亚氯酸钠的助燃特性;其次,通过离子色谱法测定燃烧残留物中ClO-2 的含量,以对亚氯酸钠的助燃效果进行定量分析;最后,基于上述研究,制定针对亚氯酸钠的防火设计策略.结果表明,烟头作为引火源时,亚氯酸钠可使大多数可燃物燃烧,尤其是对含硫物质和山梨酸钾的助燃作用最为显著;机械火花作为引火源时,亚氯酸钠可促进含硫物质和防腐剂燃烧,也能使疏松多孔的可燃物燃烧,但结构致密的布料则难以引燃;白炽灯作为引火源时,亚氯酸钠仅能助燃少数几种还原性较强的物质;而电暖器作为引火源时,亚氯酸钠无法促使样品燃烧.此外,水滴作为引火源时,亚氯酸钠可促使含硫有机物或有还原性的含硫物质燃烧.在33.1%～97.6%的湿度条件下,亚氯酸钠分别与硫磺、硫化钠混合的样品亦可发生燃爆.对亚氯酸钠助燃特性的试验研究可为其生产、存储和运输中的防火需求提供一定的参考.
Abstract
In order to study fire prevention measures for sodium chlorite,firstly,the combustion-supporting characteristics of so-dium chlorite under different ignition sources and humidity condi-tions were studied through simulation experiments.Secondly,ion chromatography is employed to measure the content of ClO-2 in the combustion residues,thereby quantitatively analyzing the combustion-supporting effect of sodium chlorite.Finally,fire pre-vention design strategies for sodium chlorite are formulated based on the investigations above.The results show that when a ciga-rette butt is used as an ignition source,sodium chlorite can cause most of combustible materials to burn,with the greatest pro-nounced effect observed on sulfur-containing substances and po-tassium sorbate.When mechanical sparks are used as ignition sources,sodium chlorite can promote the combustion of sulfur-containing substances,preservatives as well as porous combus-tibles,but it is difficult to promote the combustion of fabrics with dense structure.When an incandescent light is used as an ignition source,sodium chlorite can only facilitate the combustion of a few strong reducing agents.However,when an electric heater is used as an ignition source,sodium chlorite fails to cause the combus-tion of any of the experimental samples.In addition,when a drop of water is used as an ignition source,sodium chlorite can cause the combustion of sulfur-containing organic compounds or reduc-tive sulfur-containing substance.Samples mixed with sulfur and sodium sulfide can even undergo deflagration under humidity con-ditions ranging from 33.1% to 97.6% .This paper can provide some reference for fire prevention requirements in production,storage and transportation of sodium chlorite.
关键词
亚氯酸钠/助燃特性/燃烧残留物/防火措施Key words
sodium chlorite/combustion supporting characteris-tics/combustion residues/fire prevention measures引用本文复制引用
出版年
2024
NETL
NSTL
万方数据