作者: Burton D. Ziels
DOI:
关键词: Narrow gap 、 Structural engineering 、 Tube (structure) 、 Materials science 、 Acoustics
摘要: The feed tube of a long retracting sootblower has lance slidably overfitted thereon which is an inside diameter somewhat exceeding the outside tube, to provide relatively narrow gap therebetween. open end turbulizer mounted therein contoured impart helical component blowing fluid blows into from tube. At position spaced upstream wall pierced with plurality holes equally throughout its periphery. centering jets oppose vibration and prevent impacting same against interior