Q25H52电液循环泵的研制

发布时间：2017-12-31 16:01

本文关键词：Q25H52电液循环泵的研制　出处：《武汉工程大学》2011年硕士论文　论文类型：学位论文

【摘要】：Q25H52电液循环泵是一种新型高速离心泵,主要用于特种动力装备,本课题关于Q25H52电液循环泵的研究主要包括叶轮的绘形、绘型结果的优化和性能测试三部分: 1.叶轮的绘形叶轮是影响离心泵性能的主要零件,离心泵叶轮的绘形即绘制出叶轮的前后盖板该和叶片的型线,绘型的好坏直接关系设产品的性能,是叶轮设计中最关键的步骤。本文提出了一种新的轴面轴面投影图的绘制方法。先对叶轮进行简单的几何分析,确定叶轮前盖板由一条直线和两条弧线构成,后盖板由一条直线和一条弧线构成,之后对型线进行少量的数值计算,将每个参数用方程式表达出来,最后使用matlab对计算编程,使叶轮的绘型可以通过输入一组参数由电脑计算完成,之后修改也只用改变相应参数即可,大大简化了计算量。所得结果精度极高,接近理论设计的形状。在叶轮流线的分点计算时,本文将“二分法”引入,编程进行计算,结果表明计算简便,分点精度高。 2.优化设计叶轮设计完成后,需对叶轮进行优化设计,叶轮的优化设计可以改善叶轮形状,显著提高叶轮效率,是叶轮设计的必须步骤。本论文选取正交优化法。所谓正交设计,就是利用事先制好的特殊表格—正交表来科学地安排试验,并进行试验数据分析的一种方法。本文采用L1 6( 45)最后表对绘型结果进行了两轮优化,经检验优化后的结果接近于理论结果,故优化效果很好。 3.性能测试完成叶轮设计后进行了Q25H52电液循环泵的性能测试,检验了在不同流量、转速以及通气情况下的工作情况,测试结果表明Q25H52电液循环泵工作稳定高效,符合设计要求。
[Abstract]:Q25H52 electro-hydraulic circulating pump is a new type of high-speed centrifugal pump, which is mainly used for special power equipment. The research on Q25H52 electro-hydraulic circulating pump mainly includes the drawing of impeller. The optimization and performance testing of the drawing results are three parts: 1. Shape of impeller Impeller is the main part that affects the performance of centrifugal pump. The drawing of centrifugal pump impeller is the drawing of the front and rear cover plate of impeller and the profile of blade. It is the most important step in impeller design. In this paper, a new method of drawing axial plane projection map is put forward. Firstly, a simple geometric analysis of impeller is carried out, and it is determined that the front cover plate of impeller is composed of a straight line and two arcs. The back cover plate is composed of a straight line and an arc. Then a small amount of numerical calculation is carried out on the shape line. Each parameter is expressed by equation. Finally, the matlab pair is used to program the calculation. The drawing of impeller can be completed by computer by inputting a set of parameters, and then modified only by changing the corresponding parameters, which greatly simplifies the calculation. The result is extremely accurate. This paper introduces the dichotomy method into the calculation of the separation point of the impeller streamline line and carries out the calculation by programming. The results show that the calculation is simple and the accuracy of the separation point is high. 2. Optimal design After the design of impeller is finished, the impeller should be optimized. The optimal design of impeller can improve the shape of impeller and improve the efficiency of impeller. Orthogonal design is a necessary step in the design of impeller. In this paper, orthogonal optimization method is chosen. The so-called orthogonal design is the use of a special form made in advance-orthogonal table to scientifically arrange the test. A method to analyze the experimental data is presented in this paper. 45) at the end of the paper, two rounds of optimization are carried out, and the results are close to the theoretical results, so the optimization effect is very good. 3. Performance testing After the impeller design was completed, the performance of Q25H52 electro-hydraulic circulating pump was tested, and the working conditions of Q25H52 electrohydraulic circulating pump under different flow rate, rotating speed and ventilation were tested. The test results show that the Q 25 H 52 electrohydraulic circulating pump works stably and efficiently and meets the design requirements.
【学位授予单位】：武汉工程大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TH311

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