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对某电厂超大型原煤斗和多漏斗型粉煤斗,采用ANSYS结构应力分析软件进行了有限元分析,由于本工程煤斗煤重均在1000 t以上,煤斗体型大、形状复杂,而且采用了4点支承,改变了以往国内电厂通常采用4边支承或者8支点支承方式,基于这些特点已无法采用常规简化的计算分析方法,因此采用有限元进行结构应力分析是十分必要的.通过分析可以清楚地看到钢煤斗每个部位的应力分布情况,找到应力集中和变形控制的点或区域,并得到煤斗的支座反力,为煤斗支撑框架大梁的结构设计提供了准确的荷载,并为超大型钢煤斗的设计提供了可靠的理论分析数据.
The finite element analysis of ANSYS structural stress analysis software is applied to a super large coal hopper and a multi-hopper hopper in a power plant. Since the coal weight of the coal bucket in this project is over 1000 t, the size of the coal bucket is large and the shape is complex, 4-point support, changing the past, the domestic power plant usually adopts 4-side support or 8-point support mode, based on these features can not be used conventional simplified calculation and analysis methods, so the use of finite element analysis of structural stress is necessary.Through analysis can Clearly see the stress distribution in each part of steel coal hopper, find the stress concentration and deformation control points or areas, and get the coal bucket bearing reaction force, which provides the accurate load for the structural design of coal bucket supporting frame girder , And provide reliable theoretical analysis data for the design of super large steel coal hopper.