十字插板对水面溢油池火燃烧特性的影响  

Influence of cruciform plate on combustion characteristics of pool fire on water

作　　者：孔得朋[1] 张红杰 何旭[1] 黎昌海[2] KONG Depeng;ZHANG Hongjie;HE Xu;LI Changhai(Center for Offshore Engineering and Safety Technology,China University of Petroleum,Qingdao Shandong 266580,China;State Key Laboratory of Fire Science,University of Science and Technology of China,Hefei Anhui 230026,China)

机构地区：[1]中国石油大学(华东)海洋油气装备与安全技术研究中心,山东青岛266580 [2]中国科学技术大学火灾科学国家重点实验室,安徽合肥230026

出　　处：《中国安全科学学报》2020年第9期128-134,共7页China Safety Science Journal

基　　金：国家自然科学基金青年项目资助(51504282);国家自然科学基金面上项目资助(51874344);国家重点研发计划课题项目(2016YFB1200404)。

摘　　要：为提高就地燃烧(ISB)处理水面溢油的效率,基于外加装置增强火焰对油层热反馈的机制,设计一种十字插板装置提高水面溢油池火燃烧效率(BE),开展试验,研究不同油池直径下十字插板高度对水面溢油池火燃烧特征的影响。结果表明:当十字插板高度相对于油池直径较小时,插板不能对水面溢油池火的燃烧起到促进作用;随着十字插板高度的增加,插板接受大量火焰热量并将其经由插板传递给油层,水面溢油池火的燃烧速率和BE提高。当插板高度与油池直径比为1∶2时,BE达到最大值。进一步增加装置高度,较高的插板装置增加油池对空气的散热,反而使得BE下降。In order to improve ISB cleaning up efficiency of spilled oil on water,a cruciform plate device was designed to improve BE of oil spill fire based on mechanism of external device’s enhancement of flame’s heat feedback on oil layer.Then,influences of cruciform plates’height on fire characteristics of spilled oil under different oil pool diameters were studied through a series of experiments.The results show that when plate height is smaller than diameter of oil pool,cruciform plate cannot help improve combustion efficiency.And as its height increases,it receives a large amount of flame heat and transfers that to oil layer,thus improving burning rate and efficiency of pool fire.When the height is at a ratio of 1∶2 with pool diameter,BE will reach its maximum value.But while device height continues to rise,it increases heat dissipation of oil pool to air,which instead reduces BE.

关 键 词：十字插板 水面溢油 池火 就地燃烧(ISB) 热反馈 燃烧效率(BE) 

分 类 号：X937[环境科学与工程—安全科学]