发布时间 : 星期五 文章离心泵毕业设计更新完毕开始阅读f6535d07bb68a98271fefab8
xxxxxx大学毕业设计（论文）
xxxxxxx 大 学
毕业设计（论文）
题 目 单级单吸离心泵设计
学 院 xxxxxxxxxxxxxxx
专业班级 xxxxxx
学生姓名 xxxxxxxxxxxxxxx
指导教师 xxxxxxxxxxxxx
成 绩
x 年 x月 x 日
I
xxxxxx大学毕业设计（论文）
摘 要
离心泵是一种用量最大的水泵，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。
在此设计中，主要包括单级单吸清水离心泵的方案设计，离心泵基本参数选择、离心泵叶片的水力设计、离心泵压水室的水利设计、离心泵吸水室的水利设计。以及进行轴向力及径向力的平衡，最后要进行强度校核。
泵设计的最大难点就是泵的密封，本次设计采用的新式的填料密封，它可以根据压力的改变来改变密封力的装置。
关键词：离心泵；叶片；压水室；吸水室
II
xxxxxx大学毕业设计（论文）
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 Marine engineering, energy engineering and vehicle engineering, etc all departments of national economy is widely used.
In this design, including single-stage single-suction clean water centrifugal pump design, the basic parameters centrifugal pump, centrifugal pump hydraulic design of leaves, water pump pressurized water chamber design, the water pump suction chamber design. As well as axial force and radial force balance, and finally to the strength check.
The biggest difficulty pump design is the design of the pump seal, the new packing seal it can according to the change of the pressure to change the device sealing force.
Keywords：Centrifugal pump;Leaves; Pressurized water chamber; Suction chamber
III
齐齐哈尔大学毕业设计（论文）
目 录
摘要 ............................................................................................................................................. I Abtract ...................................................................................................................................... III
第1章 绪论 ............................................................................................................................ 1
1.1 选此课题的意义 ........................................................................................................ 1 1.2 本课题的研究现状 .................................................................................................... 1 1.3 本课题研究的主要内容 ............................................................................................ 1 第2章 泵的基本知识 ............................................................................................................ 3
2.1 泵的功能 .................................................................................................................... 3 2.2 泵的概述 .................................................................................................................... 3
2.2.1 离心泵的主要部件 .......................................................................................... 3 2.2.2 离心泵的工作原理 .......................................................................................... 4 2.3 泵的分类 .................................................................................................................... 4 第3章 离心泵的水力设计 .................................................................................................... 5
3.1 泵的基本设计参数 .................................................................................................... 5 3.2 泵的比转速计算 ........................................................................................................ 5 3.3 泵进口及出口直径的计算 ........................................................................................ 5 3.4 计算空化比转速 ........................................................................................................ 5 3.5 泵的效率计算 ............................................................................................................ 6
3.5.1 水力效率 .......................................................................................................... 6 3.5.2 容积效率 .......................................................................................................... 6 3.5.3 机械效率 .......................................................................................................... 6 3.5.4 离心泵的总效率 .............................................................................................. 6 3.6 轴功率的计算和原动机的选择 ................................................................................ 6
3.6.1 计算轴功率 ...................................................................................................... 6 3.6.2 确定泵的计算功率 .......................................................................................... 7 3.6.3 原动机的选择 .................................................................................................. 7 3.7 轴径与轮毂直径的初步计算 .................................................................................... 7
3.7.1 轴的最小直径 .................................................................................................. 7 3.7.2 轮毂直径的计算 .............................................................................................. 8 3.8 泵的结构型式的选择 ......................................................................................... 9