排烟口布置方式对防护工程机械排烟效果的影响
Effect of smoke exhaust outlet arrangement on mechanical smoke exhaust effect in protection works
摘要：
防护工程若发生火灾，高温烟气会迅速蔓延，人员不易疏散，危害极大。针对某防护工程的防排烟系统采用性能化设计，通过数值模拟，比较排烟口布置在管道侧面侧向排烟和排烟口布置在管道底部底面排烟2种方式的排烟效果。结果表明，排烟口开在管道侧面侧向排烟的方式排烟效果更好，该方式更有利于人员疏散。针对侧向排烟系统,研究了排烟量对排烟效果的影响，并对工程排烟系统优化进行了性能化评估。
Abstract：
When a fire happens in a protection works, the high temperature smoke will rapidly spread and the personnel will not evacuate easily, which will cause great harm. Aiming at the performance-based design method of smoke control and exhaust system of a protective works, by means of numerical simulation, compares the smoke exhaust effects of lateral smoke exhaust at the side of the pipeline and the bottom smoke exhaust at the bottom of the pipeline. The results show that the smoke exhaust effect is better when the exhaust outlet is opened on the side of the pipeline, which is more conducive to evacuation. Aiming at the lateral smoke exhaust system, studies the influence of the amount of smoke exhaust on the smoke exhaust effect and carries out a performance-based evaluation of the optimal engineering smoke exhaust system.
Keywords:protection works, mechanical smoke exhaust, lateral smoke exhaust, performance-based design, numerical simulation, smoke outlet