[1]黄坤,邓平,李岳鹏,等.气固两相流90°弯管抗冲蚀结构优化[J].中国安全生产科学技术,2019,15(8):94-100.[doi:10.11731/j.issn.1673-193x.2019.08.015]
HUANG Kun,DENG Ping,LI Yuepeng,et al.Structure optimization for erosion resistance of 90° elbow with gassolid twophase flow[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2019,15(8):94-100.[doi:10.11731/j.issn.1673-193x.2019.08.015]
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气固两相流90°弯管抗冲蚀结构优化
HUANG Kun,DENG Ping,LI Yuepeng,et al.Structure optimization for erosion resistance of 90° elbow with gassolid twophase flow[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2019,15(8):94-100.[doi:10.11731/j.issn.1673-193x.2019.08.015]
《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]
- 卷:
- 15
- 期数:
- 2019年8期
- 页码:
- 94-100
- 栏目:
- 职业安全卫生管理与技术
- 出版日期:
- 2019-08-31
文章信息/Info
- Title:
- Structure optimization for erosion resistance of 90° elbow with gassolid twophase flow
- 文章编号:
- 1673-193X(2019)-08-0094-07
- Keywords:
- gassolid twophase flow; threesection elbow; erosion; numerical simulation; structure optimization
- 分类号:
- X937;TE832
- 文献标志码:
- A
- 摘要:
- 为了提高天然气输送管道90°弯管的耐磨性能，提出了1种三段弯曲式弯管，通过对弯管弯曲段进行三段式改进来减小弯管中二次流的大小，优化弯管内的流场，改善弯管的冲蚀磨损状况。利用COMSOL仿真软件建立三段式弯管模型，并以弯管弯曲段和出口段二次流平均值之和最小为优化目标，在约束条件下凭借COMSOL中的COBYLA优化算法得到了最优管形；用Fluent对优化后的三段式弯管进行冲蚀数值模拟并与一段式弯管的模拟结果进行对比分析。研究结果表明：与一段式90°弯管相比，优化后的三段式弯管流场更加平稳，其弯曲段的二次流强度大幅降低，弯管壁面的冲蚀磨损程度得到较大的改善。
- Abstract:
- A threesection bending elbow was proposed to improve the erosion resistance of the 90° elbow in the natural gas transportation pipeline.The threesection improvement was carried out on the bending section of elbow to reduce the secondary flow,optimize the flow field in the elbow,and improve the erosion state of elbow.A model of threesection elbow was established by using the COMSOL simulation software,and taking the minimum sum of average values of secondary flow at the bending section and exit section of the elbow as the objective function,the optimal pipe shape under the constraint conditions was obtained by the COBYLA optimization algorithm in COMSOL.The numerical simulation of erosion was conducted on the optimized threesection elbow by using the Fluent software,and the results were compared with the simulation results of onesection elbow.The results showed that compared with the onesection 90° elbow,the flow field in the optimized threesection elbow was more stable,the intensity of secondary flow at the bending section reduced greatly,and the erosion degree of the inner wall surface of elbow was improved greatly.
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备注/Memo
- 备注/Memo:
-
收稿日期： 2019-05-17；数字出版日期： 2019-08-28
* 基金项目： 国家重点研发计划（2016YFC0802100）
作者简介： 黄坤，硕士，教授，主要研究方向为油气储运安全技术。
通信作者： 邓平，硕士研究生，主要研究方向为油气储运安全技术。
