摘要
电点火器件生产存在产品危险度高、场所火灾风险大以及安全隐患认识片面等问题。以某民爆产品生产企业典型电点火器件制造车间为研究对象,利用FDS软件通过对其火灾危险性进行数值模拟分析,研究有风和无风两种条件下点火器件制造车间内发生火灾事故后火焰及烟气的蔓延规律以及温度、能见度、烟气层高度等参数的变化特征,并重点分析制造车间内火焰及烟气形成的高温对其他电点火器件的影响,据此确定火灾发生后的危险地点和相对安全的人员逃生路线。结果表明:相比于无风条件,有风条件下制造车间内火灾人员逃生时间缩短25~50 s;风存在与否对人员选择逃生路线有关键的影响,由于有风条件下火灾燃烧速度加快,烟气产生和扩散速度也增加,人员逃离速度要求更高,因此有、无风时人员应选择不同的逃生路线。
In view of the high risk of products in the civil explosive industry, great potential safety risks, and insufficient research on the safety of civil explosive sites, this paper takes the typical electric ignition device manufacturing workshop of a civil explosive product manufacturer as the research object to conduct numerical simulation analysis on the fire hazard by using the software Fire Dynamic Simulation(FDS).The paper analyzes its temperature, visibility and smoke layer height on fire under two conditions of wind and no wind, so as to study the spread law of flame and smoke. It focuses on the analysis of the influence of high temperature formed by smoke and flame in the manufacturing workshop on other electric ignition devices.Based on the results, the paper identifies the dangerous location and relatively safe escape route on fire. The results show that the fire escape time of the manufacturing workshop under windy conditions is shortened by 25-50 s compared with that under windless conditions, and the existence of wind has a key impact on the escape route. Under windy conditions, the burning speed is accelerated, the smoke generation and diffusion speed are also increased, and the speed of escape is required to be higher. Therefore, different escape routes shall be selected when there is wind or no wind.
作者
许彬
郭耸
范鑫
汤振东
贡颢
XU Bin;GUO Song;FAN Xin;TANG Zhendong;GONG Hao(Fire Rescue Detachment of Shanghai Xuhui District,Shanghai 200030,China;School of Chemistry and Chemical Engineering,Nanjing University of Science and Technology,Nanjing210094,China)
出处
《安全与环境工程》
CAS
CSCD
北大核心
2023年第1期87-93,共7页
Safety and Environmental Engineering
基金
国家自然科学基金面上项目(51974166)。
关键词
电点火器件
民爆产品制造车间
火灾危险性
FDS模拟
electric ignition device
civil explosive product manufacturing workshop
fire hazard
FDS numerical simulation