赵亚东　蒋新生　谢威　何东海

摘      要： 为了研究球形抑爆材料对油气爆炸超压的抑制作用和阻止火焰传播的性能，搭建了Φ700 mm×  3 300 mm中尺度圆管密闭空间试验台架。测定在装有非金属球形抑爆材料时92#汽油蒸气与空气混合气体中的爆炸超压及火焰传播速度，并与空爆和装有金属网架下的试验结果进行对比。结果表明：在该试验条件下，球形抑爆材料可以使油气爆炸最大超压下降68.28%，削弱湍流发展和震荡加强过程;虽然没有完全阻止火焰传播，但球形抑爆材料可以使火焰持续时间缩短70.13%，减小火焰强度;抑爆试验后少量球形抑爆材料发生局部失稳、变形，大体上状态良好。

关  键  词：球形抑爆材料;中尺度密闭空间;油气爆炸;抑爆

中图分类号：X932        文献标识码： A        文章编号： 1671-0460（2020）06-1017-06

Experimental Study on Suppression of Gasoline-Air Mixture Explosion

in Narrow-confined Space Using Non-metallic Spherical Anti-explosion Material

ZHAO Ya-dong¹， JIANG Xin-sheng¹， XIE Wei²， HE Dong-hai¹

（1. Department of Petroleum Supply Engineering， Logistical Engineering University， Chongqing401331， China;

2. PLA Military Representative Office to Daqing Petrochemical Company， Daqing Heilongjiang 163000， China）

Abstract： In order to study the inhibitory effect of non-metallic spherical anti-explosion material on the overpressure of gasoline-air mixture explosion and the performance of preventing flame propagation， a ?700 mm×3 300 mm mesoscale circular tube confined space experimental bench was set up. The explosion overpressure and flame propagation speed in a mixture of 92# gasoline vapor and air when non-metallic spherical anti-explosion materials were installed were measured and compared with the experimental results under air explosion and with a metal grid. The results showed that，under this experimental condition， the spherical anti-explosion material reduced the maximum overpressure of gasoline-air mixture explosion by 68.28%， and weakened the turbulence development and oscillating strengthening process; although the flame propagation was not completely prevented， the spherical anti-explosion material shortened the flame duration by 70.13%， reduced the flame intensity; after the explosion suppression experiment， a small amount of spherical anti-explosion materials were locally unstable and deformed， and generally in good condition.

Key words： Spherical anti-explosion material; Mesoscale confined space; Gasoline-air mixture explosion; Explosion suppression

油料作為一种重要的能源和原料，对经济发展、社会稳定和国家安全都起着重要作用。然而油料挥发、泄漏产生的油气遇到明火、高热能等容易发生火灾爆炸事故，对油库安全事故分析显示，着火爆炸事故占事故总数的42.4%^[1]。随着我国国防石油储备战略的建立，各类军用油料储运工程设备设施大型化、信息化、智能化建设加快，对油料的供应与储藏量加大，导致大型油罐数量增加，对油料的输运、周转和储存过程提出了新的挑战，同时也对油料储运工程安全防护能力建设提出了更高要求。

为了预防此类安全事故，提高油料储运安全防护能力，阻隔防抑爆材料被大量研究。阻隔防抑爆材料是具有特殊的阻燃、抑爆、抗冲击和防静电等性能的金属或非金属材料，既可以应用于防爆，又可以用来抑爆，它的功能性质取决于所处的应用场所，非常具有应用和研究价值。……