| 连续重整装置催化剂提升管磨损失效分析 |
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| 引用本文： | 偶国富,包金哲,章利特,曹晶.连续重整装置催化剂提升管磨损失效分析[J].浙江理工大学学报,2010,27(1):89-93. |
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| 作者姓名： | 偶国富 包金哲 章利特 曹晶 |
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| 作者单位： | 浙江理工大学机械与自动控制学院,杭州,310018 |
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| 基金项目： | 国家高技术研究发展计划(863计划)，国家自然科学基金，浙江省自然科学重点基金 |
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| 摘 要： | 连续重整装置中催化剂颗粒对提升管产生严重磨损,影响系统的安全平稳运行。从气固两相流冲刷磨损机理出发,分析影响塑性材料冲刷磨损的主要因素;对颗粒相采用Fluent离散相模型,并求解气相的非稳态Navi-er-Stokes方程,研究催化剂对提升管管壁的冲刷磨损规律,获得相对磨损速率在管壁的分布;结合管道测厚数据,验证计算模型的准确性。结果表明:在提升管第一个弯头背部有三个区域磨损比较严重,主要与催化剂颗粒团聚现象和冲击速率有关。该方法可用于气固两相流管道冲刷磨损预测、管道测厚定点、监控定位和管道结构优化设计。
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| 关 键 词： | 提升管 磨损机理 团聚 冲击速率 磨损速率 |
The Wear Failure Analysis of Catalyst Lift Pipe in Continuous Reforming Unit |
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| OU Guo-fu,BAO Jin-zhe,ZHANG Li-te,CAO Jing.The Wear Failure Analysis of Catalyst Lift Pipe in Continuous Reforming Unit[J].Journal of Zhejiang Sci-tech University,2010,27(1):89-93. |
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| Authors: | OU Guo-fu BAO Jin-zhe ZHANG Li-te CAO Jing |
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| Affiliation: | OU Guo-fu,BAO Jin-zhe,ZHANG Li-te,CAO Jing(School of Machinery , Automation,Zhejiang Sci-Tech University,Hangzhou 310018,China) |
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| Abstract: | Catalyst particles in continuous reforming unit result in serious wear on the wall of lift pipe,which affects the security and stability of system obviously.On the basis of erosive wear mechanism of gas-solid flow,main influencing factors of the erosive wear on plastic materials are analyzed in this paper.Fluent discrete-phase model is chosen to analyse particle-phase and solve the non-steady state Navier-Stokes equations of gas phase.According to the research of erosive wear discipline,the distribution of ... |
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| Keywords: | lift pipe wear mechanism agglomeration impact velocity wear rate |
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