第44卷第3期2023年6月电力与能源基于高压电缆燃烧试验的电缆隧道末端火灾模拟王舒寒1,张永康1,王玲1,汤敏吉1,陈艳羚1,王承1,臧建彬2(1.国网上海市电力公司电缆分公司,上海200072;2.同济大学机械与能源工程学院,上海200092)摘要:为研究地下电缆隧道火灾的具体危害性,首先通过锥形量热仪对高压电缆进行燃烧试验,然后将试验所得数据代入FDS仿真软件,对地下电缆隧道末端的电缆火灾进行模拟验证,研究电缆隧道末端火灾的火势发展及烟气扩散、能见度变化、CO生成量、温度变化等的规律。结果表明:电缆隧道末端火灾前期的大量烟气来自高压电缆的阴燃阶段,烟气的蔓延速度极快;由于浮升力的作用,在电缆隧道高度方向上的温度呈上升趋势;电缆隧道内的烟气温度和CO含量的峰值并不在火源位置处,而是距火源有一定的距离;越靠近电缆隧道末端,其温度和CO含量越低。关键词:电缆隧道;火灾蔓延;燃烧试验;数值模拟作者简介:王舒寒(1992—),女,博士,主要从事高压电缆隧道运维工作。中图分类号:TM75;U458文献标志码:A文章编号:2095-1256(2023)03-0233-06FireSimulationattheEndofCableTunnelBasedonHVCableBurningTestWANGShuhan1,ZHANGYongkang1,WANGLing1,TANGMinji1,CHENYanling1,WANGCheng1,ZANGJianbin2(1.StateGridCableBranch,SMEPC,Shanghai200072,China;2.SchoolofMechanicalandEnergyEngineering,TongjiUniversity,Shanghai200092,China)Abstract:Inordertostudythespecifichazardsofundergroundcabletunnelfire,theconicalcalorimeterwasusedtocarryoutthecombustiontestofhighvoltagecable,andthedataobtainedfromthetestwereinputintotheFDSsimulationsoftwaretosimulateandverifythecablefireattheendoftheundergroundcabletunnel.Thefiredevel⁃opmentandsmokediffusion,visibilitychange,COproductionandtemperaturechangeruleofthecabletunnelendfirewewerestudied.Theresultsshowedthatalargeamountofsmokeattheendofcabletunnelintheearlystageoffirecomedfromthesmolderingstageofhighvoltagecable,andthesmokespreadedveryfast.Duetotheeffectofbuoyancy,thetemperatureintheheightdirectionofthecabletunneltendedtorise.ThepeakoffluegastemperatureandCOcontentinthecabletunnelwasnotatthelocationofthefiresource,buttherewasacertaindistancefromthefiresource:theclosertothe...