油砂分离装置结构优化设计的数值模拟研究

Numerical Simulation Study on Structural Optimization Design of Oil Sand Separation Device

卧螺离心机是石油工业油砂固液两相分离的重要装置,它的结构优化对提高其分离效率具有重要的实际意义。本文研究分析了螺距尺寸和进料腔结构的变化对卧螺离心机固相体积分布的影响,并基于响应面分析法(RSM),分析了螺距尺寸与进料腔结构间的相互作用。结果表明,随着螺距尺寸和进料口出口宽度的增大,卧螺离心机的分离效率均呈先增加后下降的趋势。结构优化后的卧螺离心机(螺距尺寸S=112mm,进料腔出口宽度l2=102mm),分离效率最高达到了92.55%。研究结果可为对卧螺离心机的工业化应用设计提供一些参考。

Decanter centrifuge was an important device for solid-liquid two-phase separation of oil sands in petroleum industry,its structural optimization had important practical significance for improving its separation efficiency.At present,the research on horizontal screw centrifuges mostly considered single factor analysis,without considered the interrelationships between multiple factors.In this paper,the influence of pitch size and feed chamber structure change on the solid volume distribution of horizontal screw centrifuge was studied and analyzed,and the interaction between pitch size change and feed chamber structure was analyzed based on response surface analysis(RSM).The results showed that the separation efficiency of decanter centrifuge increased first and then decreased with the increase of pitch size and inlet outlet width.The separation efficiency of horizontal screw centrifuge with optimized structure(pitch size S=112mm,feed chamber outlet width l2=102mm)was the highest of 92.55%.The research results could provide some reference for the industrial application design of horizontal screw centrifuges.