新型燃煤锅炉燃烧过程稳定性评价指数CSI  

A NEW COMBUSTION STABILITY INDEX CSI FOR UTILITY COAL-FIRED BOILERS

作　　者：程浩斌[1] 周怀春[1] 娄新生[1] 

机构地区：[1]华中理工大学煤燃烧国家重点实验室,武汉430074

出　　处：《工程热物理学报》1997年第4期512-516,共5页Journal of Engineering Thermophysics

基　　金：国家攀登计划;国家自然科学基金

摘　　要：本文简要分析了现有燃烧稳定性评价方法不具有通用性的原因，然后提出了基于BIBO稳定性理论的新型燃煤钢炉燃烧过程稳定性评价指数CSI，该指数用稳定燃烧过程能够克服的最大燃料扰动率来定量。燃烧过程动态模拟分析和试验测试结果初步验证了CSI指数的有效性。可望在此基础上建立一种全面的评价电站燃煤锅炉燃烧过程相对稳定性的理论体系。The shortage of the general suitability of some existing assessment methods for the relative combustion stability has been discussed, and then a new combustion stability index CSI for utility coal-fired boilers is proposed, which is based on the concepts of BIBO stability theory. CSI is measured by the maximum disturbance ratio of fuel mass flowrate which can be overcome by the stable combustion process. A combustion process with CSI being 0 or 1 corresponds to the lowest or highest combustion stability respectively. The results of dynamic combustion simulation on a utility boiler and experiments on two kinds of burner in a laboratory-scale single-burner furnace have proved initially the effectiveness of CSI. It can be expected to establish a comprehensive method on assessing the relative combustion stability of industrial combustion processes.

关 键 词：稳定性 评价指数 燃煤锅炉 燃烧过程 CSI 

分 类 号：TK229.6[动力工程及工程热物理—动力机械及工程] TK224.11