消防工程-专业本科毕业设计论文—防排烟.doc

- PAGE IV - 某高层住宅防排烟方案设计 摘要：本文是关于某高层住宅防排烟的设计说明，主要包括两个方面，一是地上住宅部分楼梯间加压送风防烟设计，二是地下室车库部分机械排烟设计。楼梯间加压送风防烟设计涉及到三个方面：加压送风量的计算、加压送风系统的设置及加压送风系统压力控制的设置。地下室车库机械排烟设计涉及到五个方面：防烟分区的划分、排烟量的计算、排烟口、排烟风机及排烟风道的设计。本次设计加压送风部位只在楼梯间和合用前室设置，走道没有设置加压送风口。地下车库由于有四个直接通向室外的风井和两个车辆入口，所以不设置机械进风系统，而采用自然进风；车库的排烟系统平时用于排风，发生火灾时用于排烟。 关键词：防排烟；高层住宅；地下车库；机械加压送风系统；机械排烟系统 A high-rise residential smoke resisting and exhausting scheme design Abstract：This article is about some high-rise residential design of smoke.Mainly includes two aspects, the first is residential portion of the floor stairwell pressurization air smoke design,the second is basement garage part of the design of mechanical smoke exhaust. Stairwell pressurized air smoke design involves three aspects: The pressurized supply air rate. Pressure air supply system Settings and Pressurized air pressure control system. The basement garage mechanical design involves five aspects: Smoke partition divided.The quantity of smoke.The exhaust port. The exhaust fan and exhaust duct design. This design pressure air supply parts settings only in stair and share anteroom, and the aisle is not set pressurized air diffuser. Because the underground garage has four direct access to the outdoors the wind well and the two vehicle entrance.Dont set mechanical ventilation system. So this underground garage use natural ventilation. The garage exhaust system normally used for ventilation when fire disaster it will be used. Keywords：smoke resisting and exhausting; high-rise residence; underground garage; a mechanical pressure wind-sending system;a mechanical smoke exhaust system 目录 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc 1绪论 PAGEREF _Toc \h 1 HYPERLINK \l _Toc 1.1高层建筑的火灾危险性主要有以下几个方面 PAGEREF _Toc \h 1 HYPERLINK \l _Toc 1.2高层建筑火灾特点及高层建筑防排烟系统存在的问题 PAGEREF _Toc \h 1 HYPERLINK \l _Toc 1.3目前控制烟气常用的措施 PAGEREF _Toc \h 2 HYPERLINK \l _Toc 1.4防排烟常用的方法 PAGEREF _Toc \h 2 HYPERLINK \l _Toc 1.4.1自然排烟 PAGEREF _