Q35H50循环泵叶轮绘制及压出室绘制的优化设计
发布时间：2018-12-16 20:12
【摘要】：采用优化设计技术进行离心泵的设计为人们获得性能优良、运行稳定的离心泵的开辟了新途径，优化设计方法弥补了传统设计方法的不足，代替大量的实验而节省很多人力物力;它在改善离心泵的水力性能和内部流态以及达到增效节能的方面，，具有重要的实际意义。 本文主要针对离心泵的叶轮和压出室这两个重要部件进行了优化设计，具体做了以下工作： 1.首先用简单的几何分析与少量的数值计算相结合完成叶轮轴面投影图的绘制，建立前后盖板型线的数字模型。 2.然后分别运用正交设计法和复合形法对已经完成的数字模型进行优化设计，并比较这两种方法的优缺点。 3.其次对轴面流线分点的传统方法进行了改进，运用数值方法（二分法）实现对轴面流线的分点。 4.接着本文讨论了离心泵蜗壳梯形截面涡室的一种新计算方法。 5.最后在Q35H50循环泵上进行了试验并统计数据结果，以此验证以上这些优化设计方法的可行性。
[Abstract]:The design of centrifugal pump with optimum design technology has opened up a new way for people to obtain the centrifugal pump with excellent performance and stable operation. The optimization design method makes up for the deficiency of the traditional design method. Instead of a large number of experiments to save a lot of manpower and material resources; It has important practical significance in improving hydraulic performance and internal flow state of centrifugal pump and achieving efficiency and energy saving. In this paper, the impeller and pressure-out chamber of centrifugal pump are designed optimally, and the following works are done: 1. Firstly, a simple geometric analysis and a few numerical calculations are used to complete the drawing of the impeller axial plane projection, and the digital model of the front and rear cover plate profile is established. 2. Then the orthogonal design method and the complex method are used to optimize the completed digital model, and the advantages and disadvantages of the two methods are compared. 3. Secondly, the traditional method of axial streamline separation is improved, and the numerical method (dichotomy) is used to realize the separation of axial streamline. 4. Then a new calculation method for trapezoidal vortex chamber of centrifugal pump volute is discussed. 5. Finally, the experiment on Q35H50 circulating pump is carried out and the statistical results are given to verify the feasibility of these optimization design methods.
【学位授予单位】：武汉工程大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH311
本文编号：2382988
[Abstract]:The design of centrifugal pump with optimum design technology has opened up a new way for people to obtain the centrifugal pump with excellent performance and stable operation. The optimization design method makes up for the deficiency of the traditional design method. Instead of a large number of experiments to save a lot of manpower and material resources; It has important practical significance in improving hydraulic performance and internal flow state of centrifugal pump and achieving efficiency and energy saving. In this paper, the impeller and pressure-out chamber of centrifugal pump are designed optimally, and the following works are done: 1. Firstly, a simple geometric analysis and a few numerical calculations are used to complete the drawing of the impeller axial plane projection, and the digital model of the front and rear cover plate profile is established. 2. Then the orthogonal design method and the complex method are used to optimize the completed digital model, and the advantages and disadvantages of the two methods are compared. 3. Secondly, the traditional method of axial streamline separation is improved, and the numerical method (dichotomy) is used to realize the separation of axial streamline. 4. Then a new calculation method for trapezoidal vortex chamber of centrifugal pump volute is discussed. 5. Finally, the experiment on Q35H50 circulating pump is carried out and the statistical results are given to verify the feasibility of these optimization design methods.
【学位授予单位】：武汉工程大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH311
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