通过流量调整、设计优化及其他一些技术努力减少泵中的浆液侵蚀和汽蚀：对流程工业的长期影响

Strive to Reduce Slurry Erosion and Cavitation in Pumps Through Flow Modifications, Design Optimization and Some Other Techniques: Long Term Impact on Process Industry.

作者信息

Noon Adnan Aslam, Jabbar Absaar Ul, Koten Hasan, Kim Man-Hoe, Ahmed Hafiz Waqar, Mueed Umair, Shoukat Ahmad Adnan, Anwar Bilal

机构信息

Department of Mechanical Engineering, FET. International Islamic University, Islamabad 44000, Pakistan.

Research Centre for Modelling and Simulation, National University of Sciences and Technology (NUST), Islamabad 44000, Pakistan.

出版信息

Materials (Basel). 2021 Jan 21;14(3):521. doi: 10.3390/ma14030521.

DOI:10.3390/ma14030521

PMID:33494535

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7865773/

Abstract

Centrifugal pumps are being widely used in various industries for moving fluids that carry solids through pipelines where the need of head and flow rate is not high. Slurry erosion and cavitation are an extremely complex and not yet fully understood phenomenon that occur in centrifugal pumps; however, these undesirable phenomena can be reduced to a certain extent. Appropriate design and development of experiments is required to reasonably predict slurry erosion and cavitation. However, CFD methodology complements analytical solutions and experiments whenever testing of equipment has limitations. The current paper highlights the various slurry erosion and cavitation reduction techniques utilized by different researchers. Economic analysis conducted for a case study relevant to centrifugal pump (CP) usage in Pakistan shows that an 8% enhancement in pump efficiency can reduce the life cycle cost to about 17.6%, which could save up to USD 4281 for a single pump annually in Pakistan.

摘要

离心泵在各种行业中被广泛用于输送携带固体颗粒的流体，这些行业对扬程和流量的要求不高。在离心泵中，浆液侵蚀和空化是极其复杂且尚未被完全理解的现象；然而，这些不良现象在一定程度上是可以减少的。需要进行适当的设计和开展实验，以便合理预测浆液侵蚀和空化现象。不过，每当设备测试存在局限性时，计算流体动力学（CFD）方法可补充解析解和实验。本文重点介绍了不同研究人员所采用的各种减少浆液侵蚀和空化的技术。针对巴基斯坦离心泵使用情况的一个案例研究进行的经济分析表明，泵效率提高8%可使生命周期成本降低约17.6%，这在巴基斯坦每年可为单个泵节省多达4281美元。