本文将曲面造型与数值计算有机的结合在一起应用到离心泵叶轮的优化设计中。
In this paper, an organic combination of surface molding and numerical calculation is applied to optimization design for centrifugal pump impellers.
本文为提高离心泵叶轮的设计质量及效率提供了一个新的方法。
CAD method for improving design quality and efficiency of centrifugal pump impeller is provided.
离心泵的基本构造是由六部分组成的，分别是：叶轮，泵体，泵轴，轴承，密封环，填料函。
Basic structure of the centrifugal pump is composed of six parts, namely: impeller, pump, pump shaft, bearing, seal ring, stuffing box.
该型叶轮的泵兼具有容积泵和离心泵的作用，悬浮性颗粒在叶片中流过时，不撞击泵内任何部位，故无损性好。
The type of the pump impeller and pump and centrifugal pump with a volume effect of particles suspended in mid-stream leaf out of date, do not hit any part of the pump, it is good non-destructive.
采用边界元法对螺旋离心泵叶轮中的三维势流进行了数值计算。
The three-dimensional potential flow inside the impeller of a screw centrifugal pump was analysed by the boundary element method.
简要介绍低比速离心泵特点，阐述计算的控制方程和叶轮通道网格划分方法。
The characteristics of low specific speed centrifugal pump are introduced, and the grid generation method for impeller passageway and the governing equations of calculation are also expatiated.
一般的离心泵叶轮多为此类。
在处理粘性流体方面挠性叶轮泵有很多优于离心泵的地方。
Viscous fluid in dealing with aspects of flexible impeller centrifugal pump is better than many places.
为进行离心泵叶轮的三元设计，用有限元方法解决了离心泵叶轮三元流场的计算问题。
The finite element method is used for the three-dimensional flow field calculation in designing centrifugal pump impellers.
通过切削叶轮缩小叶轮直径，改变离心泵实际性能，降低噪音和电机电流达到稳定长周期运转的目的。
The diameter of the impeller is reduced through cutting impeller to improve the factual performance, reduce noise and motor current, so that it can be run steadily for a long duration.
尤其是低比转速复合叶轮离心泵内部的流动更加复杂，亟待解决的问题也更多。
Especially the flow of compound impeller in the centrifugal pump at low specific speed is more complex and has more problems need urgently to resolve.
一般的离心泵叶轮多为此类。
概要介绍混流式水轮机转轮计算机设计的水力设计方法，其一般原理同样适用于离心泵和混流泵叶轮的设计。
A brief presentation on computer aided hydraulic design of Francis Turbine runners is given, the general principle of which are also applicable to centrifugal and mixed flow pump runners.
本文提出了有关自吸式离心泵泵体及叶轮主要尺寸的设计公式，泵体储液室、气液分离室等的确定方法。
The artical presented Designing formulas of pump body and impeller and the-defining way of liquid storage chamber and air-liquid-isolating chamber of self priming type centrifugal pump.
本文基于上述状况，针对冲压焊接离心泵叶轮的水力设计、制造工艺和优化方法等方面进行了研究。
Based on the study conditions, we study the stamping and welding centrifugal pump of impeller design methods, optimization methods and manufacturing processes.
对螺旋离心泵叶轮、进水节和进水节与蜗壳交界处的部分端面做了表面油膜、油点试验。
The experiments of an oil film visualization technique are accomplished on the surfaces of impeller, inlet segment and partial meet face between inlet segment and volute casing.
试验结果表明：质量大的颗粒，在离心泵叶轮中，其轨迹总是趋向叶片压力面。
Experimental results show that the trajectory of particles with large mass will be close to the pressure surface of blade in the centrifugal impeller.
通过改变叶轮口环间隙的大小对不同叶片型式的低比转速离心泵进行试验，证明口环间隙对低比转速离心泵效率的影响与泵叶轮的叶片的型式无关。
The experiments on different types of impeller are done by changing the clearance of wear-ring to prove that the clearance has no influence on the pump efficiency under various types of impeller.
对低比转速离心泵叶轮的水力设计具有一定的指导意义。
Results of this thesis provide guiding significance to waterpower design of impeller of the low specific speed centrifugal pump.
这一系列包括带有闭合径向叶轮的耐磨损水平或竖直多级离心泵。
This series contains robust abrasion-proof horizontal or vertical multistage centrifugal pumps with closed radial impellers.
现有的两类一元理论离心泵叶轮水力设计方法存在试凑性工作量大或盖板形状不为简单曲线的缺陷。
The existing two kinds of 1-dimensional centrifugal pump impeller hydraulic design methods have short comes of either large calculation or complicated boundary lines.
该计算为进一步提高高速复合叶轮离心泵的性能、减少水力损失提供了一定的理论依据。
It can be concluded that the flow field in the high-speed centrifugal pump with a complex impeller is very complicated, and there exists an obvio...
着重叙述了低比转数叶轮的设计方法、试验研究，对进一步开发、应用小流量化工用离心泵具有重要指导意义。
The research on design method and test for low specific speed impeller are recounted specifically. It is of very importance to further develop and use in low-flow chemical centrifugal pumps.
本文研究了离心叶轮内的流动及不同叶片出口角对离心泵性能的影响。
This paper studies the influence of flow in centrifugal impeller and outlet blade angle on the performance of centrifugal pumps.
根据液体火箭发动机系统设计确定的离心泵的性能参数，对泵叶轮的几何参数分别进行了单目标和多目标优化设计。
The structural candidates of centrifugal impeller were designed respectively from single-objective and multi-objective optimization based on the system design of liquid propellant rocket engine.
叶轮轴面图设计的好坏直接影响离心泵的效率。
The design of impeller meridional shape influences directly efficiency of centrifugal pumps.
对于不同体积分数的介质，离心泵叶轮、间隙内速度分布与介质为清水时的分布基本一致；
The velocity distribution in impeller and clearance is in accordance with that of clean water when taking pulp fiber suspensions as medium.
离心泵的基本构造是由六部分组成的分别是：叶轮，泵体、泵轴、轴承、密封环、填料密封。其中，叶轮和泵轴是设计重点。
Pump the basic structure of the six components were:impeller, volute, shaft, bearings, seal ring, filler letter. Among them, and the impeller shaft design is the key.
离心泵的基本构造是由六部分组成的分别是：叶轮，泵体、泵轴、轴承、密封环、填料密封。其中，叶轮和泵轴是设计重点。
Pump the basic structure of the six components were:impeller, volute, shaft, bearings, seal ring, filler letter. Among them, and the impeller shaft design is the key.
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