套筒式多管烟囱筒首排烟内筒中心距的控制探讨  

Control Study of Central Distance among Head Tubes for Tube-in-tube Multi-flue Chimney

作　　者：黄惠嘉 张兰春[1] 

机构地区：[1]山东电力工程咨询院,济南250013

出　　处：《特种结构》2009年第3期41-44,共4页Special Structures

摘　　要：本文给出了多管式烟囱,筒首排烟筒之间中心距S值的风洞试验的控制范围,并在调查统计的基础上,指出了现阶段设计烟囱所取的S值的离散性较大,并造成一些不利影响。最后给出了设计中综合考虑五种不同情况下S的取值,这样,可使烟气提高抬升高度、扩大落地半径和降低落地浓度,达到环保指标。The control range of ‘S＇ value which is the central distance among head tubes of multi-flue chimney has been provided in this paper through a wind tunnel test. Based on investigating nowadays the discreteness of ‘S ＇ in chimney design is very large as well as its disadvantageous effect. At the end of this paper, considering the environmental protection, this S value under five different conditions was suggested in order to heighten air, enlarge ground radius and reduce ground concentration of air.

关 键 词：多管烟囱 筒首排烟内筒中心距 抬升高度 落地浓度 风洞试验 

分 类 号：TU347[建筑科学—结构工程]