机械排烟是利用排烟机把着火房间中所产生的烟气和热量通过排烟口排至室外，同时在着火区形成负压，防止烟气向其他区域蔓延。
Combined with the improved sofeware and safe evacuation, safe analysis has been done respectively under the conditions of physical smoke extraction and mechanical smoke extraction.
将改进后的烟流预测软件与安全疏散相结合,分别对自然排烟和机械排烟两种条件下对建筑物进行了安全性分析。
参考来源 - 建筑物走廊型通道中火灾烟气流动特性及其防排烟系统特征研究The cells in potrooms become more and more, the cell capability become larger and larger. But for the poor balance quality, the traditional air exhaust system have been not suit for the new changes, therefore, cause more air pollution.
铝电解厂房中的电解槽数量越来越多、容量也越来越大,传统的机械排烟工艺逐渐暴露出排烟不均匀、调节性能差的缺陷,并造成了一定的环境污染。
参考来源 - 铝电解排烟管道系统技术研究及计算软件开发·2,447,543篇论文数据，部分数据来源于NoteExpress
为了解决这些问题，需要对铝电解机械排烟工艺进行研究改良。
To deal with this problem, it is necessary to research and improve the air exhaust system.
介绍了地上房间自然排烟和通透式吊顶房间机械排烟的设计要点。
Presents the points in design of natural smoke exhaust for rooms and mechanical smoke extraction for permeable suspended ceiling rooms.
机械排烟造成空气与烟气的混合，主要是通过逐渐稀释来清除烟气的。
The mechanical exhaust can bring the smoke and air together and get rid of the smoke through the dilution of it gradually.
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