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首页> 外文会议>The Fourth International Conference on Pumps and Fans (4th ICPF) Aug 26-29, 2002 Beijing, China >THE RESEARCH DEVELOPMENT ON VOLUTE IN CENTRIFUGAL PUMP
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THE RESEARCH DEVELOPMENT ON VOLUTE IN CENTRIFUGAL PUMP

机译：离心泵中体积的研究进展

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摘要

This paper deals with the researches on volute of centrifugal pump over recent years both at home and aboard. The discussion covers four aspects: measurement of flow field, numerical simulation, study of performance and design. In the aspect of numerical simulation in volute, more and more researchers tend to compute the flow field considering the volute and impeller as an integrated part. However, the skill how to deal with the interaction between the volute and impeller is the sticking point. The prevalent method measuring the flow field in a volute is to experiment with the Particle Image Velocimeter (PIV) and the Laser Doppler Velocimeter (LDV). With the development of instruments and technique, the flow field in the volute casing that we can observe seems more reasonable and more accurate. The geometrical parameters of volute casing are also discussed including the crossing section shape, the area of the volute crossing section and the clearance between the impeller and the volute tongue, which is the most sensitive parameter influencing the efficiency of a centrifugal pump. In order to obtain a high efficiency, the optimal designs are used instead of traditional methods. Some suggestions are also given to further researches in the volute.
机译：本文针对国内外近年来对离心泵蜗壳的研究。讨论涵盖四个方面：流场的测量，数值模拟，性能研究和设计。在蜗壳的数值模拟方面，越来越多的研究人员倾向于将蜗壳和叶轮作为一个整体来计算流场。然而，如何处理蜗壳与叶轮之间相互作用的技巧是关键所在。测量蜗壳中流场的普遍方法是使用粒子图像测速仪（PIV）和激光多普勒测速仪（LDV）进行实验。随着仪器和技术的发展，我们可以观察到的蜗壳中的流场似乎更加合理和准确。还讨论了蜗壳的几何参数，包括横截面形状，蜗壳横截面的面积以及叶轮和蜗壳舌之间的间隙，这是影响离心泵效率的最敏感参数。为了获得高效率，使用了最佳设计来代替传统方法。还为进一步研究蜗壳提出了一些建议。

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