本文選題：隔膜泵　切入點(diǎn)：有限元　出處：《東北大學(xué)》2011年碩士論文　論文類(lèi)型：學(xué)位論文

【摘要】：固-液兩相流隔膜泵屬于往復(fù)泵的范疇(以下簡(jiǎn)稱隔膜泵),其推進(jìn)液的關(guān)鍵部件采用橡膠隔膜,因此與其它往復(fù)式泵相比較除有結(jié)構(gòu)簡(jiǎn)單特點(diǎn)外還兼有耐磨、耐腐蝕等特點(diǎn),是輸送高磨蝕介質(zhì)的新一代往復(fù)泵。隔膜泵是所在工藝系統(tǒng)的心臟設(shè)備,因此,對(duì)其性能的可靠性也有很高要求。現(xiàn)在隔膜泵在流量、壓力、溫度、耐磨蝕性等都得到不斷發(fā)展,應(yīng)用領(lǐng)域也越來(lái)越廣泛,比如在有色、化工、建材、煤炭、電力等行業(yè)都得到廣泛的應(yīng)用。在實(shí)際生產(chǎn)中隔膜泵需要根據(jù)用戶的使用工況條件來(lái)定制設(shè)計(jì),但是不同型號(hào)和類(lèi)型的隔膜泵許多零件形狀是相近的。因此,將隔膜泵的設(shè)計(jì)系列化和模塊化對(duì)提高設(shè)計(jì)效率降低成本具有重要的現(xiàn)實(shí)意義。虛擬樣機(jī)技術(shù)在隔膜泵設(shè)計(jì)中不斷應(yīng)用有助于隔膜泵進(jìn)一步發(fā)展。 本文選擇以額定流量為100m3/11,額定排出壓力8MPa的三缸單作用泵作為設(shè)計(jì)對(duì)象進(jìn)行研究。首先分析了雙缸雙作用和三缸單作用隔膜泵的運(yùn)動(dòng)機(jī)理,之后利用Pro/e軟件完成對(duì)三缸單作用隔膜泵機(jī)械部分,包括動(dòng)力端、液力端、拖動(dòng)端的建模和裝配,對(duì)三缸單作用隔膜泵動(dòng)力端重要的傳動(dòng)部件如曲軸、連桿進(jìn)行較為細(xì)致的受力和運(yùn)動(dòng)分析,并利用MATLAB軟件繪出了相關(guān)的仿真曲線為ANSYS分析提供相關(guān)依據(jù),利用ADAMS軟件對(duì)三缸單作用泵動(dòng)力端的數(shù)學(xué)模型進(jìn)行了運(yùn)動(dòng)學(xué)和動(dòng)力學(xué)仿真分析,對(duì)設(shè)計(jì)的物理模型進(jìn)行校驗(yàn)和分析,為進(jìn)一步研究提供依據(jù)。 由于隔膜泵的一些關(guān)鍵零部件在實(shí)際工作過(guò)程中會(huì)發(fā)生疲勞破損或斷裂等意外,而影響到正常的使用壽命。本文利用ANSYS軟件對(duì)隔膜泵曲軸進(jìn)行分析,為更真實(shí)反映曲軸實(shí)際工作中的受載情況,分析中考慮慣性力,并對(duì)載荷邊界條件不進(jìn)行簡(jiǎn)化處理最后提出改進(jìn)措施。利用ANSYS軟件隔膜泵的隔膜進(jìn)行了非線性的分析,并完成了對(duì)隔膜的優(yōu)化設(shè)計(jì),為隔膜設(shè)計(jì)提供參考。
[Abstract]:The solid-liquid two-phase flow diaphragm pump belongs to the category of reciprocating pump (hereinafter referred to as diaphragm pump), the key component of its propulsion fluid is rubber diaphragm, so compared with other reciprocating pumps, it also has the characteristics of wear resistance and corrosion resistance in addition to its simple structure. The diaphragm pump is the heart equipment of the process system, so the reliability of its performance is also very high. Now the diaphragm pump is in the flow rate, pressure, temperature, Wear and corrosion properties have been continuously developed and applied in more and more fields, such as non-ferrous, chemical, building materials, coal, Electric power and other industries are widely used. In actual production, diaphragm pumps need to be customized according to the user's operating conditions, but many parts of different models and types of diaphragm pumps are similar in shape. It is very important to serialize and modularize the design of diaphragm pump to improve the design efficiency and reduce the cost. The application of virtual prototyping technology in the design of diaphragm pump is helpful to the further development of diaphragm pump. In this paper, a three-cylinder single-acting pump with rated flow rate of 100m3 / 11 and rated discharge pressure of 8MPa is selected as the design object. Firstly, the motion mechanism of two-cylinder double-acting and three-cylinder single-acting diaphragm pump is analyzed. After that, Pro/e software is used to model and assemble the mechanical part of the three-cylinder single-acting diaphragm pump, including the power end, the hydraulic end and the driving end. The important driving parts of the three-cylinder single-acting diaphragm pump are the crankshaft, which are important to the driving end of the three-cylinder single-acting diaphragm pump. A detailed analysis of the force and motion of the connecting rod is carried out, and the relevant simulation curves are drawn by using the MATLAB software to provide the relevant basis for the ANSYS analysis. The kinematics and dynamics simulation analysis of the power end of the three-cylinder single-acting pump is carried out by using ADAMS software. The physical model is checked and analyzed, which provides the basis for further research. Because some key parts of the diaphragm pump may have accidents such as fatigue breakage or fracture in the actual working process, which affects the normal service life, this paper analyzes the crankshaft of the diaphragm pump by using ANSYS software. In order to reflect the actual working load of crankshaft more truly, the inertial force is considered in the analysis, and the improvement measures are put forward without simplifying the load boundary condition. The nonlinear analysis of the diaphragm of the diaphragm pump with ANSYS software is carried out. The optimal design of the diaphragm is completed, which provides a reference for the design of the diaphragm.
【學(xué)位授予單位】：東北大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2011
【分類(lèi)號(hào)】：TH323

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