1、 食品机械与设备课程设计食品机械与设备课程设计 题目题目 离心泵设计离心泵设计 班级班级 姓名姓名 学号学号 指导教师指导教师 提交日期提交日期 2 摘 要 离心泵是一种用量最大的水泵。在给水牌水及农业工程、固体颗粒液体输送 工程、石油及化学工业、航空航天和航海工程能源工程和车辆工程等国民经济 各个部门都有广泛的应用。 本论文是设计一台满足设计要求的单级单吸离心泵，通过计算和分析，确定 总体参数、配套功率和各部分的尺寸。离心泵的水力性能主要取决于离心泵的水 力设计，它包括叶轮设计、压出室和吸入室的设计。目前离心泵水力设计方法有 两种，模型换算法和速度系数法。速度系数法是根据经验统计获得速度系数
2、经验 值来计算设计模型的各参数，也具有一定可靠性，而且不受水力模型限制本设计 采用速度系数法进行水力设计。使之达到理想的效果，具有良好的性能。 关键词：离心泵 叶轮 速度系数法 3 ABSTRACT Centrifugal pump is a kind of the most consumable in pumps ,water drainage and in agricultural engineering ,solid particles liquid transportation engineering ,oil and chemical industry ,aerospace and
3、marine engineering ,energy engineering and vehicle engineering ,etc. all departments of national economy is widely used. The article is to design a centrifugal pump which should be satisfied the designed requirement, thronging analysis, confirming total parameter, completed set power and each parts
4、size. The waterpower capability of centrifugal pump is mainly lie on its w aterpower design, which includes impeller design, extruded room and inhaled room design. At present the waterpower design. At present the waterpower design of centrifugal pump has two type methods: model conversion method and
5、 speed coefficient method. Speed coefficient method is according to experience statistic to obtain the experience value for speed coefficient to calculate each parameter of the design model, which has stated reliability, and cant be restricted by the waterpower model. the design adopts speed coefficient method to process waterpower design, so let it reach the ideal effect and have the well capability. Key words：centrifugal pump impeller speed coefficient method 4 目 录 摘要2 ABSTRACT 3 目录 3 前 言 5 第一章 绪论6 1.1 泵的用途6 1.2 泵的分类6 1.3 离心泵主要部件
