›› 2011, Vol. 31 ›› Issue (1): 149-152.

• 减振降噪设备和器材 • Previous Articles     Next Articles

Design and Performance Analysis of Compact SCR Purified Noise Reduction Devices

YIN He-jian,JI Zhen-lin,XIAO You-hong   

  1. ( College of Power and Energy Engineering, Harbin Engineering University, Harbin 150001, China )
  • Received:2010-03-30 Revised:2010-05-10 Online:2011-02-18 Published:2011-02-18
  • Contact: YIN He-jian

紧凑式SCR净化消声装置设计与性能分析

尹和俭1,季振林2,肖友洪3   

  1. （ 哈尔滨工程大学 动力与能源工程学院， 哈尔滨 150001 ）
  • 通讯作者: 季振林

Abstract: The compact SCR purified noise reduction device may achieve the dual functions of engine exhaust purification and exhaust noise control. The DPM model of Fluent software is used to simulate the gas flow and aqueous spray atomization process within SCR purified noise reduction device. The acoustic finite element method of Sysnoise software is used to analyze the acoustic attenuation performance of SCR purified noise reduction device. The effects of different inlet orientation and perforated tubes on resistance loss and transmission loss are investigated.

Key words: selective catalytic reduction(SCR), flow resistance, acoustic attenuation performance

摘要： 紧凑式SCR净化消声装置能够实现柴油机尾气净化和排气噪声控制双重功能，使用Fluent软件DPM模型对SCR净化消声装置内的气体流动、水溶液喷射雾化过程进行数值模拟，使用Sysnoise软件中的有限元法计算SCR净化消声装置的声学性能，研究不同进口方式和穿孔管对阻力损失和传递损失的影响。

关键词: 净化消声装置, 选择性催化还原, 阻力损失, 声学性能