卡门涡街对锅炉冷风风道危害的研究与对策

Research and Countermeasures on Harmfulness of Karman Vortex Street to Cold Air Duct of Gas Fired Boiler

卡门涡街现象是引起离心式高压风机出口风道振动的主要原因,严重危害设备的正常运行。对风道卡门涡街现象的形成进行了全面分析,制定了有针对性的应对方案,并加以实施,彻底解决了风道振动对设备正常运行的危害。

Karman vortex street phenomenon is the main cause of vibration in outlet duct of centrifugal high pressure fan,which seriously endangers the normal operation of equipment.This paper comprehensively analyzes the formation of Karman vortex street phenomenon in the air duct,formulates the corresponding countermeasure plan and implements it,and thoroughly removes the harm of air duct vibration to the normal operation of equipment.