船用柴油机SCR系统吹灰装置喷孔性能  

Performance of Spray Hole in the Soot Blowing System of Marine Diesel Engine SCR System

作　　者：张钊[1] 江国和[1] 杨智远[1] ZHANG Zhao JIANG Guohe YANG Zhiyuan(Merchant Maritime College, Shanghai Maritime University, Shanghai 201306, China)

机构地区：[1]上海海事大学商船学院,上海201306

出　　处：《机电设备》2017年第4期6-9,共4页Mechanical and Electrical Equipment

摘　　要：以MAN某型低速柴油机SCR系统的吹灰装置作为研究对象,应用商用软件FLUENT作为研究工具,选择N-S方程、Realizable k-ε方程、连续性方程和动量守恒方程作为求解的边界控制条件,对于孔径为1 mm的喷孔进行分析,分别模拟计算了喷孔的耗气量、吹扫范围、气耗比以及平均作用强度与压缩空气压力P、喷孔距离X之间的关系,为该孔径喷孔在吹灰装置的压缩空气压力P的选择、喷孔距离X的选择提供了参考依据。The blowing device of SCR system in a MAN low speed diesel engine is taken as the research object. The commercial software FLUENT is used as a research tool. N-S equation, Realizable k-equation, continuity equation and momentum conservation equation are used as the boundary condition. The spray hole with diameter of 1 mm is analyzed The relationship between the air consumption of the nozzle, the blowing range, the gas consumption ratio, the average intensity of the jet and the compressed air pressure P and the spray hole distance X are simulated The reference is provided for the selection of the compressed air Pressure and the selection of the jet orifice.

关 键 词：SCR系统 喷孔 吹灰装置 

分 类 号：U664.121[交通运输工程—船舶及航道工程]