本文選題：砂漿泵 + 電磁閥�。� 參考：《安徽工程大學(xué)》2012年碩士論文

【摘要】：隨著現(xiàn)代工業(yè)化程度的日益提高,化工、冶煉等行業(yè)對離心泵的需求量越來越大,而砂漿泵因其優(yōu)良的性能在單級單吸離心泵中占很大比例。設(shè)計性能優(yōu)良的砂漿泵已成為流體機(jī)械行業(yè)研究的熱點(diǎn)之一。 本課題旨在通過先進(jìn)設(shè)計方法設(shè)計出水力性能較好的砂漿泵葉輪以及重要零件,同時在確保使用要求的情況下節(jié)約原材料；設(shè)計流道性能良好的進(jìn)、出口電磁閥門；編制PLC防空轉(zhuǎn)控制程序避免砂漿泵發(fā)生汽蝕；進(jìn)行節(jié)能調(diào)速控制研究實(shí)現(xiàn)砂漿泵的節(jié)能控制,從而達(dá)到節(jié)約能源、提高效率的目的。該課題為今后砂漿泵新產(chǎn)品的開發(fā)提供理論依據(jù)。 本文從葉片型線、包角和厚度對砂漿泵性能的影響入手,根據(jù)設(shè)計要求經(jīng)過分析、計算得到了最合理的葉輪設(shè)計方案,并將通過該方案設(shè)計的葉輪與利用傳統(tǒng)方法設(shè)計的葉輪及全流域進(jìn)行了ANSYS CFX數(shù)值計算,通過對計算結(jié)果的分析,驗(yàn)證了該方案的可行性。對砂漿泵各零部件進(jìn)行布置,從而確定它們的結(jié)構(gòu)及尺寸,通過計算得到泵托架和軸的受力分布,采用ANSYS中靜力學(xué)分析的方法對它們進(jìn)行分析,驗(yàn)證它們的可靠性；對砂漿泵整機(jī)進(jìn)行了基于ADAMS的運(yùn)動學(xué)和動力學(xué)仿真；設(shè)計了進(jìn)、出口電磁閥門,并對其流道進(jìn)行FLUENT數(shù)值計算,根據(jù)計算結(jié)果對流道結(jié)構(gòu)進(jìn)行改進(jìn),改善了閥門流道的性能；分析了五種砂漿泵在正常運(yùn)行時的進(jìn)口速度,編制PLC程序?qū)ο到y(tǒng)進(jìn)行防空轉(zhuǎn)控制,將程序?qū)雽?shí)驗(yàn)臺進(jìn)行模擬實(shí)驗(yàn),其結(jié)果完全符合砂漿泵的防空轉(zhuǎn)控制要求,從而達(dá)到利用控制手段防止泵運(yùn)轉(zhuǎn)過程中出現(xiàn)空轉(zhuǎn)現(xiàn)象、避免過流部件因汽蝕損壞的目的；提出了利用現(xiàn)代控制理論設(shè)計控制器實(shí)現(xiàn)對泵的節(jié)能調(diào)速控制的設(shè)想,分析了泵配套電機(jī)的可調(diào)速范圍,并通過分析計算得到了泵在可調(diào)速范圍內(nèi)幾種轉(zhuǎn)速下的性能參數(shù)值,建立砂漿泵系統(tǒng)的近似數(shù)學(xué)模型和參考模型,設(shè)計模糊控制器后運(yùn)用模型參考自適應(yīng)控制方法建立了SIMULINK仿真模型,通過仿真分析以及與傳統(tǒng)PID控制的仿真結(jié)果比較,驗(yàn)證了節(jié)能調(diào)速控制方案的可行性。 通過本次課題的研究,確定了一種水力性能較好的葉輪設(shè)計方案,并且在一定程度上減小了砂漿泵零件的尺寸,獲得了性能較優(yōu)良的電磁閥門,實(shí)現(xiàn)了砂漿泵的防空轉(zhuǎn)控制及節(jié)能調(diào)速控制。
[Abstract]:With the development of modern industrialization, the demand for centrifugal pump is increasing in chemical, smelting and other industries, and mortar pump accounts for a large proportion of single-stage single-suction centrifugal pump because of its excellent performance. The design of mortar pump with excellent performance has become one of the hotspots in fluid machinery industry. The purpose of this project is to design the impeller and important parts of mortar pump with good hydraulic performance by advanced design method, at the same time, to save the raw materials under the condition of ensuring the use requirement, to design the inlet and outlet electromagnetic valves with good flow channel performance; The PLC anti-air control program is compiled to avoid cavitation of mortar pump, and energy-saving control is carried out to realize energy-saving control of mortar pump, so as to save energy and improve efficiency. This subject provides the theoretical basis for the development of new products of mortar pump in the future. This paper starts with the influence of blade profile, envelope angle and thickness on the performance of mortar pump. According to the analysis of design requirements, the most reasonable design scheme of impeller is obtained. ANSYS CFX numerical calculation is carried out on the impeller designed by this scheme and impeller designed by traditional method and the whole basin. The feasibility of the scheme is verified by the analysis of the calculated results. The components of mortar pump are arranged to determine their structure and size. The stress distribution of pump bracket and shaft is obtained by calculation. The static analysis method in ANSYS is used to analyze them to verify their reliability. The kinematics and dynamics simulation of mortar pump machine based on Adams was carried out, and the inlet and outlet electromagnetic valve was designed, and the fluent numerical calculation of its runner was carried out. According to the result of calculation, the structure of the runner was improved, and the performance of valve runner was improved. The inlet speed of five kinds of mortar pumps in normal operation is analyzed. PLC program is compiled to control the air defense of the system, and the program is introduced into the test bench for simulation experiments. The results fully meet the requirements of anti-air rotation control of mortar pumps. In order to prevent the phenomenon of idling and avoid the cavitation damage of the over-flow parts during the operation of the pump, the paper puts forward the idea of using the modern control theory to design the controller to realize the energy-saving and speed-regulating control of the pump. The range of adjustable speed of pump matching motor is analyzed, and the performance parameter values of pump under several rotational speeds are obtained through analysis and calculation, and the approximate mathematical model and reference model of mortar pump system are established. After designing the fuzzy controller, the Simulink simulation model is established by using the model reference adaptive control method. The feasibility of the energy-saving speed regulation control scheme is verified by simulation analysis and comparison with the simulation results of the traditional pid control. Through the research of this subject, a kind of impeller design scheme with better hydraulic performance is determined, and the size of mortar pump parts is reduced to a certain extent, and the electromagnetic valve with better performance is obtained. The anti-air control and energy-saving speed regulation control of mortar pump are realized.
【學(xué)位授予單位】：安徽工程大學(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 嚴(yán)利芳;岳鳳英;;基于滑�？刂频牡V井提升機(jī)變頻控制系統(tǒng)[J];長春理工大學(xué)學(xué)報(自然科學(xué)版);2011年01期

2 潘永平;王欽若;嚴(yán)興華;;液壓伺服系統(tǒng)的模型參考自適應(yīng)模糊控制新方法[J];電氣傳動自動化;2007年02期

3 張亮;關(guān)凱書;王志文;劉樹明;;Fluent模擬驗(yàn)證187137-IP減壓閥閥芯失效機(jī)理[J];腐蝕與防護(hù);2008年05期

4 劉釗;張珊珊;;變量泵控制方式及其應(yīng)用[J];中國工程機(jī)械學(xué)報;2004年03期

5 齊學(xué)義,倪永燕;復(fù)合式離心泵葉輪短葉片偏置設(shè)計分析[J];甘肅工業(yè)大學(xué)學(xué)報;2003年04期

6 徐潔,谷傳綱;長短葉片離心泵葉輪內(nèi)部流動的數(shù)值計算[J];化工學(xué)報;2004年04期

7 劉天寶;單葉片泵葉輪受力的分析與計算[J];江蘇工學(xué)院學(xué)報;1991年04期

8 楊華;劉超;湯方平;谷傳綱;;不同葉片包角的離心泵試驗(yàn)與數(shù)值模擬[J];機(jī)械工程學(xué)報;2007年10期

9 張華,霍玉蘭,薛抱新;我國建筑裝修機(jī)械的發(fā)展趨勢及“十五”設(shè)想[J];建筑機(jī)械化;2000年06期

10 李永江,張聲軍,張?zhí)m坡;推廣應(yīng)用機(jī)械噴涂抹灰技術(shù)[J];建筑機(jī)械化;2001年03期

相關(guān)博士學(xué)位論文 前2條

1 張弓;超高速電液比例閥的研究[D];西南交通大學(xué);2009年

2 王愛元;變頻器供電的感應(yīng)電機(jī)節(jié)能控制若干技術(shù)的研究[D];華東理工大學(xué);2010年

相關(guān)碩士學(xué)位論文 前4條

1 阮曉光;砂漿泵泵送機(jī)構(gòu)的研究[D];西安建筑科技大學(xué);2003年

2 李娟;潛水電泵的節(jié)能技術(shù)研究[D];江蘇大學(xué);2007年

3 穆太青;變頻電機(jī)泵控制策略的研究[D];燕山大學(xué);2009年

4 崔銘超;基于CFD技術(shù)的直角截止閥內(nèi)流道優(yōu)化[D];上海交通大學(xué);2009年

，

本文編號：2073409