送风速度对厂房气流组织及烟尘控制的影响  

Influence of Welding Workshop Air Distribution and Smoke Control by Supply Air Velocity

作　　者：孙如意[1] 彭彪[1] 

机构地区：[1]中南大学能源科学与工程学院

出　　处：《建筑热能通风空调》2016年第3期79-81,78,共4页Building Energy & Environment

摘　　要：置换通风以其在高大空间的节能、热舒适性及室内空气品质等方面的优越性,在焊接厂房的烟尘治理中得到了广泛的应用。针对指导置换通风的规范标准相对缺乏,详细的工程设计参考数据不足这一问题采用CFD方法研究焊接厂房置换通风的优化设计。影响焊接厂房室内气流组织和空气品质的因素有:送风温度、送风速度、送风筒的安装高度等,其中送风速度对厂房的气流组织和人体舒适性有很大的影响。本文以南车长江车辆有限公司的焊接厂房为例,模拟分析不同的送风速度对焊接厂房内气流组织和污染物浓度分布的影响。Displacement ventilation system has been used in the large welding plant to control welding fume due to its advantages of energy-saving, thermal comfort and indoor air quality in the large space. In view of the relative lack of standards and detailed engineering design reference data, Computational Fluid Dynamics （CFD） method has developed into an important method to research the optimization of displacement ventilation. The supply air temperature, air speed, reasonable installation height of air supply terminal, etc, but the supply air velocity has a great influence to the airflow organization and human thermal comfort. This article puts the welding workshop in CRS Yangtze Co., Ltd. as an example, simulation analysis of different air supply velocity makes different distribution to airflow and the concentration of welding fumes on different conditions.

关 键 词：置换通风 送风速度 气流组织 烟尘浓度 

分 类 号：TU834[建筑科学—供热、供燃气、通风及空调工程]