污水沉降罐在刮泥机载荷作用下的受力分析  

Load Analysis on Sewage Settling Tank with Scraping Sludge Machine

作　　者：张艳[1] 李自力[1] 李扬[1] 琚选择[1] 

机构地区：[1]中国石油大学储运与建筑工程学院,山东东营257061

出　　处：《石油矿场机械》2008年第12期25-27,共3页Oil Field Equipment

摘　　要：针对旧污水沉降罐在安装刮泥机后的受力可靠性问题,建立了简化力学模型和三维弹塑性有限元模型。利用ANSYS模拟软件计算了导轨和罐壁板在刮泥机工作状态下的位移和等效应力分布及滚轮位于导轨不同位置对整个装置受力的影响程度。计算结果表明,最大等效应力位于导轨与罐壁的连接区域附近;导轨和支撑肋板承担了大部分的刮泥机的重力及流体动载荷;在设计肋板数目及导轨尺寸下,安装刮泥机对储罐的影响不大。为评价该类旧污水沉降罐改造的可行性提供了依据。The simplified mechanical model and three-dimensional elastic-plastic finite element models was found to analyze the reliability of sewage settling tanks equipped with scraping sludge machine.ANSYS was used to calculate the distribution of the von mises stress and the displacement and the effect of location where the wheel laid on track to the whole device.The results showed that the max von mises stress happened on the track＇s side which connected to tank shell,the track and rib plates bearing the bulk of the gravity of scraping sludge machine and the fluid dynamic load.Under the design rib plates＇ number and the track＇s size,the scraping sludge machine had a little impact to tank.This provided the criteria for the evaluation of the feasibility of this old sewage settling tank.

关 键 词：污水沉降罐 刮泥机 静载荷 有限元 ANSYS 

分 类 号：TE978[石油与天然气工程—石油机械设备]