本文選題：機械密封 + 變形　； 參考：《北京化工大學》2013年碩士論文

【摘要】：機械密封在化工設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。因為機械密封對整個裝置起到關鍵的作用,所以針對機械密封的研究也格外的關鍵。隨著機械密封研究的深入,有幾個問題也漸漸的凸顯出來,本文主要研究的就是其中的一個問題,鑲嵌式機械密封環(huán)在制造過程或裝配過程中產生的變形因素分析,看對密封性能的影響,并提出對策。 本文主要是通過實驗和模擬的方法研究鑲嵌式機械密封環(huán)的變形問題,內容分為三個部分：第一,采用ANSYS軟件對典型鑲嵌密封環(huán)進行整體應力分布模擬及變形和應力變化的研究；以試驗的方法分析不同鑲嵌方式對機械密封端面變形的影響,并對密封性能進行驗證；第二,針對加工過程中密封環(huán)剛性不足產生的夾緊力變形,重新設計夾具改變夾緊力方向,進行加工工藝改進；第三,針對鑲嵌式密封環(huán)安裝過程中螺栓預緊力對密封環(huán)變形的影響進行分析,并對不同裝配條件下機械密封性能進行運轉驗證試驗。 本文主要是通過上述幾個方面的深入研究,找出機械密封端面變形問題,可以提出提高機械密封性能的方法,以此指導工程實踐應用。
[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.
【學位授予單位】：北京化工大學
【學位級別】：碩士
【學位授予年份】：2013
【分類號】：TH136

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