高温磁力泵基于多场耦合数值分析的结构优化和实验研究

发布时间：2018-05-12 10:19

本文选题：高温电磁泵 + 电磁驱动装置　；参考：《合肥工业大学》2015年硕士论文

【摘要】：磁力驱动泵因其静密封无泄漏的特点,在输送危险、高温、高压、贵重等特殊介质时应用广泛。特别是最近几年,随着磁力驱动装置技术的日趋成熟,越来越多的设计者们希望此项技术能应用在极端工作环境中。本文根据实际生产需求,设计了一款高温电磁泵；通过采用多耦合场理论对其散热结构、电磁驱动装置进行了数值模拟分析,并以此为基础,通过对其泵体、电磁驱动装置的结构优化来提高其工作性能。其中,主要的研究内容如下： 1.简述了磁力泵及磁力驱动装置的发展过程,并对现有各种类型的磁力泵的工作原理及结构特点进行了归纳,最终得出高温退磁是永磁型磁力泵在运输高温高压介质时扭矩传递效率下降的主要原因。 2.对于现有永磁型磁力泵在运输高温高压介质时所存在的缺陷,结合现有磁力泵的结构,设计出一款新型高温电磁泵；通过对其电磁驱动装置的鼠笼式内转子、线圈外定子的设计,使所设计的电磁驱动装置避免了高温退磁的问题；同时泵体散热结构的确定,有效地防止了泵体密封腔中输送介质高温高压对电磁驱动装置工作的影响。 3.分析了所设计的高温电磁泵工况下多个物理场的耦合机理理论,总结了求解电磁驱动装置传递力矩的计算方法,为对其结构进行数值模拟时建立模型、确定算法提供了理论依据。 4.分别对所设计的高温电磁泵的散热结构和电磁驱动装置进行了数值仿真模拟,并根据所得结论,对相应的散热机构和电磁驱动装置的结构优化方向进行了确定。 5.设计并搭建相关实验平台,对所得数值模拟仿真结果进行试验校核；并根据最大切应力理论,对实验台重要零部件的可靠性进行了校核。
[Abstract]:Magnetic drive pump is widely used in transportation of dangerous, high temperature, high pressure, precious and other special media because of its characteristics of no leakage in static seal. Especially in recent years, with the maturation of magnetic drive device technology, more and more designers hope that the technology can be applied in extreme working environment. According to the actual production demand, a high temperature electromagnetic pump is designed in this paper, and its heat dissipation structure and electromagnetic driving device are numerically simulated and analyzed by adopting the multi-coupling field theory, and based on this, the pump body is analyzed. The structure of electromagnetic drive device is optimized to improve its performance. Among them, the main research contents are as follows: 1. The development process of magnetic pump and magnetic drive device is briefly described, and the working principle and structure characteristics of various types of magnetic pump are summarized. Finally, it is concluded that high temperature demagnetization is the main reason for the decrease of torque transfer efficiency of permanent magnet magnetic pump when transporting high temperature and high pressure medium. 2. For the defects of the existing permanent magnet magnetic pump in transporting high temperature and high pressure medium, a new type of high temperature electromagnetic pump is designed according to the structure of the existing magnetic pump. The design of the outer stator of the coil avoids the problem of high temperature demagnetization and the determination of the heat dissipation structure of the pump body effectively prevents the influence of the high temperature and high pressure of the conveying medium in the sealing chamber of the pump body on the work of the electromagnetic drive device. 3. The coupling mechanism theory of several physical fields under the condition of the designed high temperature electromagnetic pump is analyzed, and the calculation method for calculating the transfer moment of electromagnetic drive device is summarized. The model is established for the numerical simulation of its structure. A theoretical basis is provided for determining the algorithm. 4. The heat dissipation structure and electromagnetic driving device of the designed high temperature electromagnetic pump are simulated numerically, and the optimization direction of the corresponding heat dissipation mechanism and electromagnetic drive device is determined according to the conclusions obtained. 5. The experimental platform was designed and built to verify the results of numerical simulation, and the reliability of important parts of the test bench was checked according to the theory of maximum shear stress.
【学位授予单位】：合肥工业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TH35

【参考文献】