赵迪,徐志胜,赵红莉

• 1:中南大学防灾科学与安全技术研究所
• 2:华北水利水电大学环境与市政工程学院

摘要(Abstract)：

在通风网络理论的基础上编制了基于质量描述的隧道网络通风计算程序,并采用模型试验方法对火灾通风网络计算结果进行了验证,证实了网络程序的可靠性。将研编的通风网络计算程序应用于某隧道集中排烟模式下火灾通风排烟技术研究,探讨了排烟量和漏风量对排烟道内和排烟阀处烟气流速的影响规律。结果表明,增加排烟量时,排烟道内和排烟阀处烟气流速呈升高趋势,越靠近排烟风机处,其烟气流速升高趋势越明显。漏风分支风阻的大小较显著地影响着漏风量的大小。减小未开启排烟阀的分支风阻系数,漏风量增大,开启的排烟阀处流量减少,当漏风分支风阻系数减小到10 N·s/(kg·m)2时,漏风量超出规范规定值。

关键词(KeyWords)： 消防工程;隧道火灾;网络通风;集中排烟;排烟量;漏风量

Abstract:

Keywords:

基金项目(Foundation): 浙江省科技厅科技计划项目(2008C13041-2)

作者(Author): 赵迪,徐志胜,赵红莉

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