基于液相调节的除尘器阻力特性  

Resistance characteristics of dust separator based on liquid phase adjustment

作　　者：李小川[1,2] 胡亚非[1] 张巍[1] 陈明军[1] 

机构地区：[1]中国矿业大学化工学院,江苏徐州221008 [2]徐州众凯机电设备制造有限公司,江苏徐州221004

出　　处：《煤炭学报》2013年第2期336-341,共6页Journal of China Coal Society

基　　金：国家高技术研究发展计划(863)资助项目(2007AA05Z339);江苏省研究生培养创新工程资助项目(CXZZ11-0313)

摘　　要：以节流型自激式水幕除尘器为研究对象,通过对节流强度α、总阻力损失h和节流液位差ΔH等的研究,探讨了液相调节作用下除尘器的阻力特性,得出除尘器α值与气体流速v呈线性关系,α-v曲线斜率受除尘器内部设备阻力的影响,阻力系数越大,斜率越小;除尘器h-v曲线是直线和抛物线的组合体,当初始节流强度α0>0且v较小时,体现出明显的抛物线特性,当α0<0或α0>0且v较大时,h-v曲线体现出直线特性;液相通过自身流动性来改变气液两相的受力平衡,达到调节除尘器阻力的目的。Throttle-type self-excitation dust separator was chosen as the study object. Through the study of dust separator＇ s throttle strength value a, total pressure loss value h and throttle liquid-level difference value AH, the dust separa- tor resistance characteristics, based on adjustment of liquid phase, was explored. The primary conclusions are as fol- lows：there is linear relationship between ot value and gas velocity value v. And the slope of ct-v curve is affected by the equipment resistance coefficient in dust separator. The slope value reduces with the increase of equipment resist- ance value. The dust separator h-v curve is made up of straight line and parabola. When the initial throttle strength value ao〉0 and the gas velocity v is on the small side, the h-v curve exhibits a parabolic distribution obviously. Whereas if the initial throttle strength value a0 〈0 or a0 〉0 and the gas velocity v is on the great side, the h-v curve ex- hibits a linear distribution. The equilibrium condition of force is changed by the self-fluidity of liquid-phase ; as the re- sult, the resistance characteristics of dust separator are adjusted by that.

关 键 词：除尘器 节流强度 总阻力损失 节流液位差 液相流动性 

分 类 号：TD714.4[矿业工程—矿井通风与安全]