本文選題：三相臥螺離心機 + 轉(zhuǎn)鼓　； 參考：《天華化工機械及自動化研究設(shè)計院有限公司》2014年碩士論文

【摘要】：螺旋離心機廣泛應(yīng)用于石油化工、石油煉制、煤炭、醫(yī)藥、輕工等多個行業(yè)，其中用于三相分離的臥式螺旋卸料沉降離心機（以下簡稱三相臥螺離心機），在處理煉油廠油性污泥的回收利用方面有良好的效果。本課題來源于中國石油化工股份有限公司《油性污泥油水廢渣三相分離技術(shù)開發(fā)》的項目，對三相臥螺離心機進行了自主設(shè)計和研究，目的是為了對三相分離設(shè)備進行國產(chǎn)化攻關(guān)，形成具有自主知識產(chǎn)權(quán)的三相分離技術(shù)及設(shè)備。 轉(zhuǎn)鼓是三相臥螺離心機的重要部件，其結(jié)構(gòu)和參數(shù)不僅影響臥螺離心機的工藝性能，也決定著臥螺離心機的使用壽命和運行安全。討轉(zhuǎn)鼓參數(shù)在不同工況下對轉(zhuǎn)鼓強度和剛度的影響以及轉(zhuǎn)鼓自身的振動特性，對臥螺離心機的設(shè)計和優(yōu)化具有指導(dǎo)意義。本文的主要研究內(nèi)容包括以下四個方面： （1）分析和討論LWS400三相臥螺離心機的工作原理和轉(zhuǎn)鼓參數(shù)； （2）介紹對轉(zhuǎn)鼓進行動、靜態(tài)有限元分析的方法，利用ANSYS Workbench軟件對LWS400三相臥螺離心機轉(zhuǎn)鼓進行靜力分析，并討論LWS400三相臥螺離心機轉(zhuǎn)鼓的主要結(jié)構(gòu)參數(shù)和操作參數(shù)在不同工況下對轉(zhuǎn)鼓強度和剛度的影響； （3）利用ANSYS Workbench軟件對LWS400三相臥螺離心機轉(zhuǎn)鼓進行模態(tài)分析，確定轉(zhuǎn)鼓的固有頻率，避免臥螺離心機發(fā)生共振； （4）在滿足臥螺離心機安全運行的條件下，利用ANSYS Workbench軟件對轉(zhuǎn)鼓進行結(jié)構(gòu)參數(shù)和操作參數(shù)的尋優(yōu)。 基于上述討論內(nèi)容，本文獲得以下研究成果： （1）獲得了轉(zhuǎn)鼓結(jié)構(gòu)參數(shù)和操作參數(shù)在不同工況下對轉(zhuǎn)鼓強度和剛度的影響規(guī)律，并以此為基礎(chǔ)，對轉(zhuǎn)鼓參數(shù)進行優(yōu)化獲得新的轉(zhuǎn)鼓模型。優(yōu)化后的轉(zhuǎn)鼓，質(zhì)量更輕，，啟動功耗更低；優(yōu)化后的轉(zhuǎn)鼓操作參數(shù)，分離因數(shù)更高，工藝性能得到提升； （2）通過模態(tài)分析獲得了轉(zhuǎn)鼓的固有頻率和相應(yīng)的振型。
[Abstract]:Spiral centrifuges are widely used in petrochemical, petroleum refining, coal, medicine, light industry and other industries,The horizontal spiral discharge centrifuge used for three-phase separation (hereinafter referred to as three-phase horizontal centrifuge) has a good effect on the recovery and utilization of oily sludge in oil refinery.This subject comes from the project of "Development of Three-phase Separation Technology for oily sludge, Oil and Water waste Slag" of China Petrochemical Co., Ltd., and has carried on the independent design and the research to the three-phase horizontal spiral centrifuge.The purpose of this paper is to develop three-phase separation technology and equipment with independent intellectual property.Drum is an important part of three-phase horizontal centrifuge. Its structure and parameters not only affect the technological performance of the horizontal centrifuge, but also determine the service life and operation safety of the horizontal spiral centrifuge.The influence of drum parameters on drum strength and stiffness and the vibration characteristics of drum itself under different working conditions are discussed. It is of guiding significance for the design and optimization of horizontal screw centrifuge.The main contents of this paper include the following four aspects:1) the working principle and drum parameters of LWS400 three-phase horizontal spiral centrifuge are analyzed and discussed.This paper introduces the method of dynamic and static finite element analysis of rotary drum, and makes static analysis of the drum of LWS400 three-phase horizontal spiral centrifuge by using ANSYS Workbench software.The influence of the main structure parameters and operating parameters of LWS400 three-phase horizontal spiral centrifuge drum on the drum strength and stiffness under different working conditions is also discussed.(3) the modal analysis of the drum of LWS400 three-phase horizontal centrifuge is carried out by using ANSYS Workbench software to determine the natural frequency of the drum and avoid the resonance of the horizontal spiral centrifuge.4) under the condition of satisfying the safe operation of the horizontal spiral centrifuge, the structural and operational parameters of the drum are optimized by ANSYS Workbench software.Based on the above discussion, this paper obtains the following results:1) the influence of drum structure parameters and operation parameters on drum strength and stiffness under different working conditions is obtained, and based on this, a new drum model is obtained by optimizing the drum parameters.The optimized drum has lighter quality and lower start-up power, and the optimized drum operation parameters have higher separation factor and higher process performance.2) the natural frequency and the corresponding modes of the drum are obtained by modal analysis.
【學(xué)位授予單位】：天華化工機械及自動化研究設(shè)計院有限公司
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TQ051.8

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