摘要
通过某电厂光管式改造成膜式省煤器的运行实践和流场实验结果，建立了膜片间烟气的速度场和飞灰场分布曲线及函数关系式，阐述了膜式省煤器管外烟气流场的特点，分析、论证了采用传统方法计算膜式省煤器磨损量使用寿命的缺陷，提出了较切合实际的建议，对今后膜式省煤器的设计及应用。
The paper describes the operation practice and results of flow field experiment which is carried out in a power plant in which the bare tube type economizer is exchanged to a diaphragm type one.Furthermore,the distribution curves and function relationship of velocity field of the flue gas and density field of the fly ash are established.The characteristics of the flue gas flow field outside the tubes of the diaphragm economizer are described.The shortcomings of the traditional method in estimation of the life time of the diaphragm type economizer under abrasion are discussed which will benefit to the design and application fo diaphragm type economizers.
出处
《东北电力学院学报》
1996年第2期68-72,共5页
Journal of Northeast China Institute of Electric Power Engineering
关键词
膜式省煤器
飞灰磨损
锅炉
diaphragm type economizer,flow field test,fly ash abrasion
