本文關(guān)鍵詞： 離心泵 數(shù)字化設(shè)計 流道幾何模型 網(wǎng)格劃分 數(shù)值模擬　出處：《山東理工大學(xué)》2012年碩士論文　論文類型：學(xué)位論文

【摘要】：離心泵是一種需求量最大的通用水力機(jī)械。經(jīng)過半個多世紀(jì)的發(fā)展,我國在離心泵的設(shè)計、制造方面取得了許多可喜的進(jìn)步�，F(xiàn)今,我國水泵生產(chǎn)企業(yè)大多為中小型企業(yè),普遍存在資金和資源不足的問題,在技術(shù)儲備、裝備水平以及新產(chǎn)品研制能力等方面還相對落后,相比國外許多著名泵企,依然存在著較大、較明顯的差距�；诖爽F(xiàn)狀,本文對離心泵的水力設(shè)計、過流部件造型、流道幾何模型建模、多工況數(shù)值模擬分析等進(jìn)行了相關(guān)研究,旨在提高泵類產(chǎn)品的綜合性能。本文主要研究內(nèi)容如下： (1)本文基于離心泵水力設(shè)計和水力模型葉片表面型值點(diǎn)求解方法,利用VC++編程工具,開發(fā)了離心泵水力設(shè)計模塊,實(shí)現(xiàn)了離心泵設(shè)計參數(shù)和葉輪葉片繪型參數(shù)的快速計算；對三維造型軟件UG NX7.0軟件平臺進(jìn)行了二次開發(fā),借助數(shù)據(jù)庫技術(shù),完成了離心泵葉輪實(shí)體造型模塊的開發(fā),達(dá)到了從葉片三維造型、葉輪前后蓋板造型到葉輪實(shí)體自動建模的整套功能； (2)本文基于離心泵過流部件的水力設(shè)計方法,利用UG NX7.0對離心泵過流區(qū)域建模,得到了離心泵流道幾何模型；通過對網(wǎng)格劃分技術(shù)的解析,利用FLUENT專用前處理軟件Gambit對離心泵流道幾何模型進(jìn)行了詳細(xì)的網(wǎng)格劃分和邊界條件的設(shè)定； (3)利用FLUENT求解器對經(jīng)過網(wǎng)格劃分處理的流道幾何模型進(jìn)行三種工況下的數(shù)值模擬,得出了離心泵內(nèi)部流動特征信息,總結(jié)了離心泵內(nèi)部流動速度和壓力的變化、分布情況,對三種工況下離心泵的多項(xiàng)工作性能做了對比。最后,將模擬結(jié)果與實(shí)驗(yàn)結(jié)果進(jìn)行了比較。 本文研究內(nèi)容的完成,可以大大縮短離心泵的設(shè)計時間,減少新產(chǎn)品研制中樣機(jī)的制造數(shù)量,在提高了離心泵設(shè)計、制造精度的同時,增強(qiáng)了產(chǎn)品的可靠性和泵類企業(yè)的市場競爭力,具有重要的現(xiàn)實(shí)意義。
[Abstract]:Centrifugal pump is a kind of general hydraulic machinery with the greatest demand. After more than half a century of development, China has made many gratifying progress in the design and manufacture of centrifugal pump. Water pump production enterprises in China are mostly small and medium-sized enterprises, there are generally insufficient funds and resources, in terms of technical reserves, equipment level and new product development capacity is relatively backward. Compared with many famous pump enterprises abroad, there is still a big and obvious gap. Based on this situation, the hydraulic design of centrifugal pump, the modeling of flow components, and the geometry model of flow channel are modeled in this paper. In order to improve the comprehensive performance of pump products, the main contents of this paper are as follows: In this paper, the hydraulic design module of centrifugal pump is developed by using VC programming tool, based on the hydraulic design of centrifugal pump and the method of solving the value point of blade surface. The quick calculation of centrifugal pump design parameters and impeller blade drawing parameters is realized. The 3D modeling software UG NX7.0 software platform has been developed for the second time. With the help of database technology, the solid modeling module of centrifugal pump impeller has been developed, and the 3D modeling of the blade has been achieved. The whole function of modeling from the front and back cover plate of impeller to the automatic modeling of impeller entity; In this paper, based on the hydraulic design method of the flow passing parts of the centrifugal pump, the flow zone of the centrifugal pump is modeled by UG NX7.0, and the geometry model of the flow channel of the centrifugal pump is obtained. Based on the analysis of the mesh generation technology, the geometry model of centrifugal pump runner is divided and the boundary conditions are set by using the special pre-processing software Gambit of FLUENT. FLUENT solver is used to simulate the geometry model of flow channel in three working conditions, and the flow characteristic information of centrifugal pump is obtained. The variation and distribution of flow velocity and pressure in centrifugal pump are summarized. The performances of centrifugal pump under three working conditions are compared. Finally, the simulation results are compared with the experimental results. The completion of the research in this paper can greatly shorten the design time of centrifugal pump, reduce the number of prototype in the development of new products, improve the design and manufacturing accuracy of centrifugal pump at the same time. Enhance the reliability of products and pump enterprises market competitiveness, has important practical significance.
【學(xué)位授予單位】：山東理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2012
【分類號】：TH311

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 杜強(qiáng);林江海;魏修亭;劉景成;;基于UG NX的離心泵葉輪葉片三維造型系統(tǒng)開發(fā)[J];機(jī)床與液壓;2010年21期

2 顧青春;葉嘉;陳文毅;;船用離心泵內(nèi)部流場數(shù)值分析和性能預(yù)測[J];機(jī)電設(shè)備;2009年04期

3 杜平安;有限元網(wǎng)格劃分的基本原則[J];機(jī)械設(shè)計與制造;2000年01期

4 吳婷,張禮兵;離心泵CAD系統(tǒng)中葉輪軸面流道的設(shè)計[J];機(jī)械工程師;2005年10期

5 姜小放;曹西京;司震鵬;;離心泵蝸殼和葉輪的網(wǎng)格劃分[J];煤礦機(jī)械;2010年08期

6 李春,倪建華,蘇進(jìn);離心泵葉輪葉片三維參數(shù)化造型技術(shù)研究[J];水泵技術(shù);2003年02期

7 劉厚林;泵水力設(shè)計軟件PCAD 2004的開發(fā)[J];水泵技術(shù);2005年01期

8 朱保林,張淑佳,林鋒,胡清波;離心泵葉輪設(shè)計方法現(xiàn)狀與發(fā)展趨勢[J];水泵技術(shù);2005年02期

9 唐文靜,魏修亭,劉偉洪,張學(xué)森;離心泵葉輪數(shù)字化造型原理與算法研究[J];水泵技術(shù);2005年03期

10 牟介剛;張生昌;;CFD技術(shù)在離心泵設(shè)計工作中的應(yīng)用[J];水泵技術(shù);2006年02期

相關(guān)博士學(xué)位論文 前1條

1 袁建平;離心泵多設(shè)計方案下內(nèi)流PIV測試及其非定常全流場數(shù)值模擬[D];江蘇大學(xué);2008年

相關(guān)碩士學(xué)位論文 前5條

1 李瑞光;大流量沖壓焊接多級離心泵設(shè)計方法與內(nèi)流機(jī)理研究[D];山東理工大學(xué);2011年

2 張雨英;旋葉式壓縮機(jī)的數(shù)值模擬與工作過程仿真[D];重慶大學(xué);2005年

3 熊斌;大型水輪發(fā)電機(jī)內(nèi)部流體場和溫度場的數(shù)值計算[D];哈爾濱理工大學(xué);2006年

4 姚曉春;V形調(diào)節(jié)球閥的數(shù)值模擬及結(jié)構(gòu)優(yōu)化[D];蘭州理工大學(xué);2009年

5 杜強(qiáng);基于UG NX的離心泵葉輪數(shù)字化制造技術(shù)研究[D];山東理工大學(xué);2010年

，

本文編號：1442400