锅炉汽包水位非稳态数学模型及水位控制策略的研究  

Study on unsteady state mathematical modeling of drum level and the method of level control

作　　者：米梦龙[1] 吕玉坤[1] 

机构地区：[1]华北电力大学能源与动力工程学院,河北保定071003

出　　处：《华北电力大学学报（自然科学版）》2009年第2期54-57,共4页Journal of North China Electric Power University：Natural Science Edition

摘　　要：锅炉汽包水位是现代电厂锅炉安全运行的重要监控参数。依据质量和能量平衡,建立了汽包水位非稳态数学模型;通过编程计算,对炉内燃煤量扰动造成的动态特性进行了分析,并提出了水位控制的方法,对汽包锅炉的安全运行和控制具有参考意义。The drum level is an important monitor parameter on the safe operation of stream boiler in present. The mathematical modeling based on mass and energy balance was built when the drum level under unsteady state in this paper. Calculated by code, the dynamic characteristic caused by turbulence of combustion quality was analyzed, and the method of level control was proposed. The conclusion has reference value for the safe operation and controlling of steam boiler.

关 键 词：汽包水位 非稳态 数学模型 动态特性 水位控制 

分 类 号：TK221[动力工程及工程热物理—动力机械及工程]