摘要
对于采用止回阀的集中排烟道系统 ,通过建立连续性方程及各流线上的能量方程 ,计算出采用普通排油烟机时在不同截面下烟道内沿程的流量及压力分布。分析表明由于温差很小 ,热压对流动的影响力较小 ,烟气流动的动力主要来自于排烟机本身。烟道内压力自上而下逐渐增加 ,底层住户的排烟最为不利。计算方程和程序可用于工程设计。
Based on continuity equation and energy equation of every streamline,flow and pressure distribution in different transections along the chimney of exhaust system with normal induced draft fan and check valve are calculated.The result shows that heat pressure has weakly affected on flow because small difference in temperature and power of flow is caursed by induced draft fans.The pressure of fume in chimney increases slowly from top to bottom.Exhaust of the bottom residential kitchen is the worst.These equations and program could be used in engineering design.
出处
《南京建筑工程学院学报》
2002年第3期8-12,共5页
Journal of Nanjing Architectural and Civil Engineering Institute(Natural Science)
关键词
住宅
厨房
集中排烟
烟气流动
residential
central exhaust system
fume flow
