CFD 模拟气动输送系统中减少弯管侵蚀的漩涡机制

IF 0.7 4区工程技术 Q4 ENGINEERING, MARINE

International Journal of Maritime Engineering Pub Date : 2024-07-27 DOI:10.5750/ijme.v1i1.1364

Bharat Singh Yadav, Rajiv Chaudhary, R.C. Singh

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引用次数: 0

摘要

与空气输送混合的干粉存在弯管侵蚀问题。利用 Ansys 中的剪应力传输 (SST) k-ɯ 模型进行 CFD 分析，对气力输送系统中 90° 低碳钢弯管内的颗粒侵蚀进行了全面的数值分析。利用外部电机漩涡装置实现的部分输送管旋转用于在弯管前产生颗粒漩涡。在使用和不使用旋转装置的情况下，以不同的转速对不同大小的沙粒进行了测试。降低弯管的侵蚀率具有重大意义，特别是可以延长系统的使用寿命。在漩涡装置转速较高的情况下，侵蚀率的降低使弯管寿命延长了 50%，令人印象深刻。结果表明，该装置能有效减轻侵蚀，对提高气力输送应用管道系统弯管寿命和可靠性具有重要意义。

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CFD Modelling of Swirling Mechanism to Reduce Erosion of Pipe Bend in Pneumatic Conveying System

Dry powders mixed with air transportation had bend erosion issues. CFD analysis by Shear-Stress Transport (SST) k-ɯ Model within Ansys was used to conduct a comprehensive numerical analysis of particle erosion within a 90° mild steel pipe bend in Pneumatic Conveying System. Part of the conveying pipe rotation achieved with the external motor swirling device was used to create swirling of particle before bend. Different-sized sand particles at different rpm were tested with and without a swirling device. Reduction in erosion rate of pipe bend carries significant implications, notably an extension of the system's operational lifespan. Reduction in erosion rate reports an impressive increase of 50% bend lifespan at higher RPM levels of the swirling device. The results underscore the effectiveness of this device in mitigating erosion, with significant implications for enhancing the longevity and reliability of bend life in piping systems of Pneumatic Conveying applications.

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来源期刊

International Journal of Maritime Engineering ENGINEERING, MARINE-

CiteScore

1.20

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： The International Journal of Maritime Engineering (IJME) provides a forum for the reporting and discussion on technical and scientific issues associated with the design and construction of commercial marine vessels . Contributions in the form of papers and notes, together with discussion on published papers are welcomed.