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物料在正弦泵内的流动分析及泵的结构优化

发布时间:2018-04-28 12:36

  本文选题:正弦泵 + 空间正弦直纹曲面 ; 参考:《江南大学》2011年硕士论文


【摘要】:正弦泵是一种新型容积泵,它的核心部件——叶轮具有正弦波的形状,叶轮这种独特的设计使得它在输送物料时对物料基本不产生剪切,并且保证在输送过程中正弦泵的流量脉动几乎为零。正弦泵应用广泛,可以用于食品行业、饮料行业、化妆品行业和化工行业等,它的优良性能让客户受益匪浅。虽然正弦泵应用广泛,但国内外关于正弦泵的资料非常少,对其研究方法的阐述更是缺乏。针对这一问题,本文对正弦泵的结构进行了基本的研究,期望能为其设计提供一些方法和思路。 本文介绍了正弦泵的工作原理、技术特点和应用情况,并阐述了正弦泵的研究现状。本文从研究正弦泵叶轮的结构入手,建立了叶轮曲面的数学模型,得到了该曲面的基本性质;推导出正弦泵瞬时流量及排量的公式,定性地分析了正弦泵的效率;讨论了正弦泵所能够容纳的球形物料的最大尺寸,并对叶轮及刮板的结构进行了优化设计,同时设计了正弦泵的其他关键零件如刮板导向装置、衬垫、泵壳及主轴;从理论上简单分析了流体在正弦泵内的运动情况,并在FLUENT流体模拟软件中对正弦泵的流场进行了简单的模拟,得到其压力场、速度场及湍流强度的分布情况,为正弦泵叶轮的进一步优化设计提供理论依据。
[Abstract]:Sinusoidal pump is a new type of volumetric pump. Its core component, impeller, has the shape of sine wave. The flow pulsation of sinusoidal pump is almost zero. Sinusoidal pump is widely used in food industry, beverage industry, cosmetics industry and chemical industry. Although sinusoidal pump is widely used, there is very little information about sinusoidal pump at home and abroad. In order to solve this problem, the structure of sinusoidal pump is studied in this paper, and it is expected to provide some methods and ideas for the design of sinusoidal pump. This paper introduces the working principle, technical characteristics and application of sinusoidal pump, and expounds the research status of sinusoidal pump. In this paper, starting with the study of the structure of sinusoidal pump impeller, the mathematical model of impeller surface is established, the basic properties of the surface are obtained, the formulas of instantaneous flow rate and displacement of sinusoidal pump are derived, and the efficiency of sinusoidal pump is qualitatively analyzed. This paper discusses the maximum size of spherical material that sinusoidal pump can hold, and optimizes the structure of impeller and scraper. At the same time, other key parts of sinusoidal pump such as scraper guide device, liner, pump shell and main shaft are designed. The flow field of sinusoidal pump is simply simulated in FLUENT fluid simulation software, and the distribution of pressure field, velocity field and turbulence intensity are obtained. It provides theoretical basis for further optimization design of sinusoidal pump impeller.
【学位授予单位】:江南大学
【学位级别】:硕士
【学位授予年份】:2011
【分类号】:TH32

【引证文献】

相关硕士学位论文 前1条

1 吕帅;用于带硬颗粒黏稠物料的活塞式定量灌装装置研究[D];江南大学;2013年



本文编号:1815300

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