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[1]辛保泉,党文义,喻健良.基于风险的液化烃罐区建筑物抗爆荷载评估方法[J].中国安全生产科学技术,2020,16(7):30-35.[doi:10.11731/j.issn.1673-193x.2020.07.005]
　XIN Baoquan,DANG Wenyi,YU Jianliang.Risk-based evaluation method for blast resistant load of buildings in liquefied hydrocarbon tank farm[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2020,16(7):30-35.[doi:10.11731/j.issn.1673-193x.2020.07.005]
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基于风险的液化烃罐区建筑物抗爆荷载评估方法
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
16
期数:
2020年7期
页码:
30-35
栏目:
学术论著
出版日期:
2020-07-30

文章信息/Info

Title:
Risk-based evaluation method for blast resistant load of buildings in liquefied hydrocarbon tank farm
文章编号:
1673-193X(2020)-07-0030-06
作者:
辛保泉; 党文义; 喻健良
（1.大连理工大学 化工学院，辽宁 大连 116024；
2.中国石油化工股份有限公司青岛安全工程研究院，山东 青岛 266101）
Author(s):
XIN Baoquan;  DANG Wenyi;  YU Jianliang
(1.School of Chemical Engineering,Dalian University of Technology,Dalian Liaoning 116024,China;
2.Sinopec Qingdao Research Institute of Safety Engineering,Qingdao Shandong 266101,China)
关键词:
蒸气云爆炸; 抗爆荷载; 石油化工企业建筑物; 液化烃; 定量风险评估
Keywords:
vapor cloud explosion;  blast resistant load;  petrochemical building;  liquefied hydrocarbon;  quantitative risk assessment
分类号:
X932；TU312+.1
DOI:
10.11731/j.issn.1673-193x.2020.07.005
文献标志码:
A
摘要:
为合理确定液化烃罐区周边建筑物的抗爆设防荷载，有效进行抗爆设计和防护，建立1套系统的抗爆设防荷载定量评估方法。以某液化烃罐区建筑物为例，计算172个爆炸场景，获得4组累积爆炸频率曲线，基于风险控制标准确定抗爆设防荷载。结果表明：爆炸场景发生频率应包括初始泄漏频率、气象概率、泄漏方向概率和延迟爆炸概率；获得的爆炸超压-累积频率曲线是确定抗爆设防荷载的基础，在爆炸超压较低时，与爆炸源中心距离不同的4面墙体的超压累积频率曲线极为接近；随着爆炸超压的继续增大，累积发生频率的差异逐渐明显；液化烃罐区建筑物的抗爆设防荷载应同时满足2个准则，即万年1次的风险可接受准则和风险可接受范围内爆炸超压最大化准则；根据该准则确定的液化烃罐区附近建筑物东墙的爆炸冲击波峰值入射超压为44.6 kPa，正压作用时间为89.3 ms。
Abstract:
In order to reasonably determine the blast resistant fortification load of buildings around the liquefied hydrocarbon tank farm,and effectively conduct the blast resistant design and protection,a set of systematic quantitative evaluation method for the blast resistant fortification load was established.Taking a building in a liquefied hydrocarbon tank farm as an example,172 explosion scenarios were calculated,and 4 groups of cumulative explosion frequency curves were obtained.Finally,based on the risk control standard,the blast resistant fortification load was determined.The results showed that the occurrence frequency of explosion scene should include the initial leakage frequency,meteorological probability,leakage direction probability and delayed explosion probability.Obtaining the explosion overpressurecumulative frequency curve was the basis of determining the blast resistant fortification load.When the explosion overpressure was low,the cumulative frequency curve of overpressure was very close to that of four walls with different distances from the center of explosion source.With the continued increase of explosion overpressure,the difference of cumulative occurrence frequency bacame obvious gradually.Two criteria should be satisfied simultaneously for the blast resistant fortification load of buildings in the liquefied hydrocarbon tank farm,namely the risk acceptance criteria of once every 10 000 years,as well as the criteria of maximum explosion overpressure within acceptable risk standard.According to the established criterion,the peak incoming overpressure of blast wave at the east wall of the building near the liquefied hydrocarbon tank was 44.6 kPa,and the duration was 89.3 ms.

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备注/Memo

备注/Memo:
收稿日期： 2020-02-20
* 基金项目： 国家自然科学基金项目( 51574056，51604057)
作者简介： 辛保泉，博士研究生，工程师，主要研究方向为高危气体泄漏扩散、爆炸防护及定量风险评估。
更新日期/Last Update: 2020-08-06