摘要
洗涤冷却室内分隔板与鼓泡区气液的相互作用,使得分隔板在流体的诱导下产生振动。采用防水型加速度计,在不同工况下测定分隔板的振动信号,通过对振动信号的时域分析,讨论了操作条件(表观气速和静态液位等)对振动强度的影响,得出了分隔板振动强度随表观气速和床层液位的变化规律,且在一定气速下振动最强区域与液位高度关联性很强。
The interaction of the break-board in the scrubbing-cooling chamber and the gas-liquid in the bubbling region makes the break-board vibrate under the induction of the flow.Vibration signals of break-boards are measured under different conditions with waterproof accelerometer and studied by time-frequency analysis.The effect of operation conditions（superficial gas velocity and static liquid height） on the vibration intensity is discussed.The regularity of vibration intensity of break-boards changing with the variations of superficial gas velocity and static liquid height is analyzed.The most intensive vibrational region and liquid level have strong correlation under certain gas speed.
出处
《华东理工大学学报（自然科学版）》
CAS
CSCD
北大核心
2010年第3期346-350,共5页
Journal of East China University of Science and Technology
基金
国家重点基础研究发展计划项目(2004CB217700)
上海市优秀学科带头人资助计划项目(08XD1401300)
关键词
分隔板
时域分析
振动
表观气速
静态液位
break-board
time-frequency analysis
vibration
superficial gas velocity
static liquid height
