炉烟干燥开式制粉系统的锅炉热平衡及烟气特性计算方法  

Method for Calculating the Heat Balance and Flue Gas Characteristics of a Boiler Equipped With a Flue Gas Dried Open Type Milling System

作　　者：马有福[1] 

机构地区：[1]上海理工大学能源与动力工程学院,上海200093

出　　处：《热能动力工程》2014年第6期725-730,764,共6页Journal of Engineering for Thermal Energy and Power

摘　　要：在当前国内的锅炉相关标准及文献中,均未对炉烟干燥开式制粉系统锅炉的热平衡及热力计算方法予以介绍。本研究提出了开式制粉系统的3种炉烟干燥方案,并对应用这3种炉烟干燥方案的开式制粉系统锅炉的热平衡及烟气特性进行了深入分析,指出了其与传统闭式制粉系统锅炉的区别。继而,基于常规的燃煤收到基分析数据及低位发热量,提出了适用于炉烟干燥开式制粉系统锅炉的热平衡及烟气特性计算方法,据此可完成完整的开式制粉系统锅炉热力计算。该计算方法为炉烟干燥开式制粉系统锅炉的研究、应用及优化提供了理论基础。At present,the method for calculating the heat balance and thermal calculation of a boiler with flue gas dried open type milling system( OPSB) has not been described in literatures and standards devoted to boilers.This paper presented three kinds of flue gas combinations to be used as the drying agent of open type milling systems.Then,the heat balance and flue gas properties of the three OPSBs were analyzed to clarify their differences between the boilers with an open and a closed pulverizing system.Finally,a set of methods for calculating the heat balance and flue gas properties of the three OPSBs was advanced based on the conventional proximate / ultimate analysis data and the net caloric value of coal.By using this method,the whole thermal calculation of the OPSB can be accomplished.Therefore,the method presented in this paper lays a theoretical foundation for research,application and optimization of OPSBs.

关 键 词：褐煤 锅炉 热平衡 热力计算 开式制粉系统 

分 类 号：TK221[动力工程及工程热物理—动力机械及工程]