D200多级离心清水泵毕业设计last.doc

攀枝花学院机械工程学院
D200多级离心清水泵结构设计
题 目：D200多级离心清水泵结构设计
学生姓名： 刘 洋
学生学号： 5
院（系）： 机械工程学院
年级专业： 机械设计制造及其自动化
指导教师： 陈新德 （讲师 ）
2013年2月21日
摘要
泵是将原动机的机械能或其他能源的能量传递给它所输送的液体，使液体的能量增加的机械。其中离心泵是用量最大的水泵，在给水排水及农业工程、固体颗粒液体输送工程、石油及化学工业、航天航空及航海工程、能源工程和车辆工程等国民经济各个部门都有广泛应用[1]。而此次设计的D200多级离心泵属于D型卧式单吸多级节段式离心清水泵，主要用于输送清水（含杂质量小于1%，）或物理化学性质类似于水的其他液体。它输送介质温度小于80℃，适用于矿山排水、工厂与城市给排水等场合[2]。该系列泵具有效率高、性能范围广、运转安全平稳、噪音低、寿命长、安装维修方便等优点。
对D200多级离心清水泵的各部分结构进行简要说明以及对其几何参数对它的影响进行分析选择。多级节段式离心清水泵应用范围广，所以产量也相对较大。这类泵采用单轴串联多个叶轮的方式从而达到高扬程的要求,而且每个叶轮具有相应的导轮。
关键词 离心泵，叶轮，导叶，平衡装置
ABSTRACT
The pump is transfer the prime mover of the mechanical energy or other energy to give it the delivery of liquid, the liquid to increase the energy of the machine. Centrifugal pump which is the maximum amount of water pump, the water supply and drainage and agricultural engineering, transportation engineering of liquid and solid particles, oil and chemical industry, aerospace and marine engineering, energy engineering and vehicle engineering and other national economic departments are widely used. D200 multistage centrifugal pump and the design of D type horizontal single suction multi-stage centrifugal pumps, mainly used for conveying water (containing impurities is less than 1%, particle size less than ) or for other liquids similar to water in physical and chemical properties. The transmission medium temperature less than 80 ℃, applicable to mine drainage, factory and the city drainage. This series of pump has the advantages of high efficiency, wide range of performance, safe and stable operation, low noise, long service life, convenient installation and repair.
The structure of each part of the D200 multi-stage centrifugal pump were introduced as well as the influence of the geometric parameters on it were selected for analysis. Multi-stage centrifugal water pump a wide range