本文選題：機(jī)械密封 + 變形��； 參考：《北京化工大學(xué)》2013年碩士論文

【摘要】：機(jī)械密封在化工設(shè)備中是一種常見的密封裝置,隨著工業(yè)水平的高速發(fā)展,它的作用也越來越大。因?yàn)闄C(jī)械密封對(duì)整個(gè)裝置起到關(guān)鍵的作用,所以針對(duì)機(jī)械密封的研究也格外的關(guān)鍵。隨著機(jī)械密封研究的深入,有幾個(gè)問題也漸漸的凸顯出來,本文主要研究的就是其中的一個(gè)問題,鑲嵌式機(jī)械密封環(huán)在制造過程或裝配過程中產(chǎn)生的變形因素分析,看對(duì)密封性能的影響,并提出對(duì)策。 本文主要是通過實(shí)驗(yàn)和模擬的方法研究鑲嵌式機(jī)械密封環(huán)的變形問題,內(nèi)容分為三個(gè)部分：第一,采用ANSYS軟件對(duì)典型鑲嵌密封環(huán)進(jìn)行整體應(yīng)力分布模擬及變形和應(yīng)力變化的研究；以試驗(yàn)的方法分析不同鑲嵌方式對(duì)機(jī)械密封端面變形的影響,并對(duì)密封性能進(jìn)行驗(yàn)證；第二,針對(duì)加工過程中密封環(huán)剛性不足產(chǎn)生的夾緊力變形,重新設(shè)計(jì)夾具改變夾緊力方向,進(jìn)行加工工藝改進(jìn)；第三,針對(duì)鑲嵌式密封環(huán)安裝過程中螺栓預(yù)緊力對(duì)密封環(huán)變形的影響進(jìn)行分析,并對(duì)不同裝配條件下機(jī)械密封性能進(jìn)行運(yùn)轉(zhuǎn)驗(yàn)證試驗(yàn)。 本文主要是通過上述幾個(gè)方面的深入研究,找出機(jī)械密封端面變形問題,可以提出提高機(jī)械密封性能的方法,以此指導(dǎo)工程實(shí)踐應(yīng)用。
[Abstract]:Mechanical seal is a common sealing device in chemical equipment. With the rapid development of industrial level, its function is becoming more and more important. Because mechanical seal plays a key role in the whole device, so the research of mechanical seal is especially key. With the development of mechanical seal research, several problems have been gradually highlighted. In this paper, one of the main problems is the analysis of deformation factors in the manufacturing process or assembly process of the inlaid mechanical seal ring. Look at the effect on sealing performance, and put forward countermeasures. In this paper, the deformation problem of inlaid mechanical seal ring is studied by means of experiment and simulation. The content is divided into three parts: first, The integral stress distribution and deformation and stress change of typical inlaid seal rings are simulated by ANSYS software. The effects of different inlay modes on the face deformation of mechanical seals are analyzed by means of experimental method, and the seal performance is verified. In view of the clamping force deformation caused by the insufficient rigidity of the seal ring during the machining process, the redesigned fixture changes the direction of the clamping force and improves the processing technology. This paper analyzes the effect of bolt pretightening force on the deformation of the sealing ring during the installation of the inlaid seal ring, and carries out the operation verification test on the mechanical seal performance under different assembly conditions. In this paper, the deformation problem of the end face of mechanical seal can be found out through the deep research of the above several aspects, and the method of improving the performance of mechanical seal can be put forward to guide the engineering practice and application.
【學(xué)位授予單位】：北京化工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類號(hào)】：TH136

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