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仿生非光滑表面叶片对双叶片泵抗磨特性的影响

Effect of Bionic Nonsmooth Surface Vane on the Antiwear Characteristics of Double-Vane Pump.

作者信息

Ma Longbiao, Gu Yunqing, Xia Ke, Mou Jiegang, Wu Denghao, Yan Muhan

机构信息

College of Metrology & Measurement Engineering, China Jiliang University, Hangzhou 310018, China.

Zhejiang Engineering Research Center of Fluid Equipment & Measurement and Control Technology, China Jiliang University, Hangzhou 310018, China.

出版信息

Appl Bionics Biomech. 2022 Apr 20;2022:4442417. doi: 10.1155/2022/4442417. eCollection 2022.

DOI:10.1155/2022/4442417
PMID:35506045
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9057078/
Abstract

In order to improve the antiwear characteristics of the double-vane self-priming pump, the surface structure of the was extracted and reconstructed according to bionic principles. Three types of nonsmooth surface models were established at the outlet end of the suction surface of the vanes, which is the most severely worn in the double-vane pump. The external characteristics, pressure field distribution, wear area distribution, and wear degree of the volute and vanes at different concentrations of nonsmooth vane structure were investigated by numerical simulation to reveal the mechanism of the nonsmooth surface structure of the wear characteristics of the vanes. The results show that the head and efficiency of pumps with four different vanes decrease and the average wear rate increases as the particle concentration increases. The different vane structures have a very small effect on the wear resistance of the volute, but a larger effect on vane wear. The circular nonsmooth surface structure, which reduces the low pressure area of the inlet section of the impeller while ensuring a smaller drop in head and efficiency, produces the best antiwear effect and improves the antiwear performance of the double-vane pump.

摘要

为提高双叶片自吸泵的抗磨损性能，依据仿生原理对其表面结构进行提取与重构。在双叶片泵中磨损最为严重的叶片吸力面出口端建立了三种非光滑表面模型。通过数值模拟研究了不同浓度非光滑叶片结构下蜗壳和叶片的外部特性、压力场分布、磨损区域分布及磨损程度，以揭示叶片磨损特性的非光滑表面结构机理。结果表明，随着颗粒浓度增加，四种不同叶片泵的扬程和效率降低，平均磨损率增大。不同叶片结构对蜗壳耐磨性影响很小，但对叶片磨损影响较大。圆形非光滑表面结构在保证扬程和效率下降较小的同时，减小了叶轮进口段的低压区，抗磨损效果最佳，提高了双叶片泵的抗磨损性能。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d60d/9057078/694826c2e143/ABB2022-4442417.011.jpg
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