中压蒸汽过热器、焚烧炉蒸发器开工时振动原因分析

ANALYSIS ON VIBRATION CAUSES OF MEDI-UM-PRESSURE STEAM SUPERHEATER AND EV APORATOR FOR INCINER ATOR DURING START-UP

在硫磺回收装置开工过程中,工作人员发现中压蒸汽过热器、焚烧炉蒸发器内部有轰隆声,设备顶部平台栏杆有振动现象.为查找设备振动原因,实测了燃烧器、尾气焚烧炉、中压蒸汽过热器、焚烧炉蒸发器、平台梯子、栏杆、顶部管道、消音器等在开工时的振动数据.对中压蒸汽过热器、焚烧炉蒸发器的振动进行分析后认为,消音器释放蒸汽振动过大是其主要振动源,可以通过技术改造消除振动并优化燃烧,同时消除次生振动源.

During the start-up process of the sulfur recovery unit,operators found rum bling noises inside the medium-pressure steam superheater and evaporator for incinerator and there was vibration on the platform railings of the equipment top.To find out the causes of the equipment vibration,the vibration data of the burner,tail gas incinerator,medium-pressure steam superheater,evaporator for incinerator,platform ladders,railings,top pipes,and silencers were measured at start-up.After analyzing the vibration of the medium-pressure steam superheater and the evaporator for incinerator,it was concluded that the excessive vibration of the silencers releasing steam was its main vibration source,and the vibration could be eliminated through technical renovation and the combustion could be optimized.Meanwhile,the secondary vibration sources could be eliminated.