【正文】 xxxxxx 大學(xué)畢業(yè)設(shè)計(jì)（論文） I xxxxxxx 大 學(xué) 畢業(yè)設(shè)計(jì)（論文） 題 目 單級(jí)單吸離心泵設(shè)計(jì) 學(xué) 院 xxxxxxxxxxxxxxx 專(zhuān)業(yè)班級(jí) xxxxxx 學(xué)生姓名 xxxxxxxxxxxxxxx 指導(dǎo)教師 xxxxxxxxxxxxx 成 績(jī) x 年 x 月 x 日 xxxxxx 大學(xué)畢業(yè)設(shè)計(jì)（論文） II 摘 要 離心泵是一種用量最大的水泵，在給水排水及農(nóng)業(yè)工程、固體顆粒液體輸送工程、石油及化學(xué)工業(yè)、航空航天和航 海工程、能源工程和車(chē)輛工程等國(guó)民經(jīng)濟(jì)各個(gè)部門(mén)都有廣泛的應(yīng)用。 在此設(shè)計(jì)中， 主要包括單級(jí)單吸清水離心泵的方案設(shè)計(jì)，離心泵基本參數(shù)選擇、離心泵葉片的水力設(shè)計(jì)、離心泵壓水室的水利設(shè)計(jì)、離心泵吸水室的水利設(shè)計(jì)。以及進(jìn)行軸向力及徑向力的平衡，最后要進(jìn)行強(qiáng)度校核。 泵設(shè)計(jì)的最大難點(diǎn)就是泵的密封，本次設(shè)計(jì)采用的新式的填料密封，它可以根據(jù)壓力的改變來(lái)改變密封力的裝置。 關(guān)鍵詞 ：離心泵；葉片；壓水室；吸水室 xxxxxx 大學(xué)畢業(yè)設(shè)計(jì)（論文） III 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 singlestage singlesuction 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齊齊哈爾大學(xué)畢業(yè)設(shè)計(jì)（論文） 目 錄 摘要 ............................................................................................................................................. I Abtract ...................................................................................................................................... III 第 1 章 緒論 ............................................................................................................................ 1 選此課題的意義 ........................................................................................................ 1 本課題的研究現(xiàn)狀 .................................................................................................... 1 本課題研究的主要內(nèi)容 ............................................................................................ 1 第 2 章 泵的基本知識(shí) ............................................................................................................ 3 泵的功能 .................................................................................................................... 3 泵的概述 .................................................................................................................... 3 離心泵的主要部件 .......................................................................................... 3 離心泵的工作原理 .......................................................................................... 4 泵的分類(lèi) .................................................................................................................... 4 第 3 章 離心泵的水力設(shè)計(jì) .................................................................................................... 5 泵的基本設(shè)計(jì)參數(shù) .................................................................................................... 5 泵的比轉(zhuǎn)速計(jì)算 ........................................................................................................ 5 泵進(jìn)口及出口直徑的計(jì)算 ........................................................................................ 5 計(jì)算空化比轉(zhuǎn)速 ........................................................................................................ 5 泵的效率計(jì)算 ............................................................................................................ 6 水力效率 .......................................................................................................... 6 容積效率 .......................................................................................................... 6 機(jī)械效率 .......................................................................................................... 6 離心泵的總效率 .............................................................................................. 6 軸功率的計(jì)算和原動(dòng)機(jī)的選擇 ................................................................................ 6 計(jì)算軸功率 ...................................................................................................... 6 確定泵的計(jì)算功率 .......................................................................................... 7 原動(dòng)機(jī)的選擇 .................................................................................................. 7 軸徑與輪轂直徑的初步計(jì)算 .................................................................................... 7 軸的最小直徑 .................................................................................................. 7 輪轂直徑的計(jì)算 .............................................................................................. 8 泵的結(jié)構(gòu)型式的選擇 ......................................................................................... 9 xxxxxx 大學(xué)畢業(yè)設(shè)計(jì)（論文） 5 第 4 章 葉輪的水力設(shè)計(jì) ...................................................................................................... 10 確定葉輪進(jìn)口速度 .................................................................................................. 10 計(jì)算葉輪進(jìn)口直徑 .................................................................................................. 10 先求葉輪進(jìn)口的有效直徑 D0 ....................................................................... 10 葉輪進(jìn)口直徑 ................................................................................................ 11 確定葉輪出口直徑 .................................................................................................. 11 確定葉片厚度 ..............................................