单级叶片倾角对百叶窗浓缩器分离特性影响的工业试验  

Industrial Tests For Clarifying the Impact of Single-stage Blade Dip Angle on the Separation Characteristics of a Louver Concentrating Device

作　　者：杨龙滨 李争起[1] 陈力哲[1] 邱鹏华[1] 

机构地区：[1]哈尔滨工业大学能源科学与工程学院,黑龙江哈尔滨150001

出　　处：《热能动力工程》2003年第5期501-503,共3页Journal of Engineering for Thermal Energy and Power

基　　金：国家电力公司基金资助项目(KJ-02-16)

摘　　要：在一台采用中速磨正压直吹制粉系统燃烟煤的670t/h直流煤粉锅炉上,对百叶窗浓缩器分离特性进行了单相及气固两相试验,得出了单级可动叶片倾角为32°时,浓一次风份额较低,分离效率、浓缩率较高,综合阻力损失系数为0.92,压力损失为471Pa。On a 670 t/h bituminous coal fired boiler equipped with a race pulverizer baseddirect fired pulverized coal preparation system, single stage blade and gas solid two phase tests were conducted to determine the separation characteristics of a louver concentrating device. It is found that with the dip angle of a single stage movable blade set at 32° the share of fuel rich primary air is relatively low, the separation and concentrating efficiency are relatively high. Meanwhile, the comprehensive resistance loss factor and pressure loss is respectively 0.92 and 471 Pa.

关 键 词：锅炉 浓缩器 百叶窗 气固流动 

分 类 号：TK223.25[动力工程及工程热物理—动力机械及工程]