摘要
本文结合调查和分析的六个典型烟囱事故,提出了内衬设计强度要求;给出了分节高度、内衬厚度与地震设防烈度、筒壁内径的关系;讨论了烟囱底部考虑锅炉运行中烟气正负压力的范围,内衬厚度取值及内衬在分节标高处上下节的连接改进,供《烟囱设计规范》编制组参考。
This paper surveys the six typical chimney accident and the liner design strength requirement.Then segment height,lining thickness,intensity of seismic fortification,and the relationship between the diameter cylinder wall are given.Considering the scope of positive and negative pressure of the chimney flue gas boiler operation at the bottom.The lining thickness values and improvement under and oper the sub-section elevation are also discussed.These may be the reference for"Chimney design Specifications"Group.