脱硫除雾器冲洗喷嘴冲洗特性试验研究  

Experimental study on flushing characteristics of flushing nozzles of demister in desulfurization system

作　　者：杨柳[1] 金定强[2] 吕留根[1] 

机构地区：[1]南京师范大学动力工程学院,南京210042 [2]国电环境保护研究院,南京210031

出　　处：《环境工程学报》2008年第1期140-143,共4页Chinese Journal of Environmental Engineering

基　　金：中国国电集团重点资助项目(04081-092)

摘　　要：以湿法烟气脱硫工艺中常用的除雾器冲洗喷嘴为研究对象,加工了不同喷嘴芯旋度和排放口倒角半径的喷嘴。经过大量试验,系统地研究了冲洗喷嘴的冲洗流量、扩散角和均匀度的变化规律。研究结果表明,当喷嘴芯旋度为30°,排放口倒角半径在3.5 mm左右时,其冲洗效果较好。Taking the flushing nozzles of a demister commonly used in the wet flue-gas desulfurization（WFGD） techniques as the objects, the series of nozzles with different characteristics as angle of nozzle core and outlet chamfer radius were machined. The variation principles of flushing flux, diffusing angle and uniformity of spray of flushing nozzles are studied systematically through numerous experiments. It is displayed that the flushing effect is better when the angle is 30 degree and the chamfer radius is about 3.5 mm.

关 键 词：湿法烟气脱硫 除雾器 冲洗喷嘴 冲洗特性 

分 类 号：X701.3[环境科学与工程—环境工程]