本文關(guān)鍵詞：往復(fù)式氣體壓縮機(jī)活塞桿密封技術(shù)研究　出處：《上海交通大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 往復(fù)式壓縮機(jī) 活塞桿 填料環(huán) 密封 冷卻

【摘要】：往復(fù)式氣體壓縮機(jī)是石油化工行業(yè)中的重要設(shè)備,對石化產(chǎn)品的生產(chǎn)有著重要的影響。在實(shí)際生產(chǎn)中,國產(chǎn)壓縮機(jī)的活塞桿密封穩(wěn)定性低,容易泄漏,頻繁的停工維修顯著影響了企業(yè)的正常生產(chǎn)。同時,氣體的泄漏造成的安全損失也較為嚴(yán)重。因此,研究往復(fù)式壓縮機(jī)的活塞桿密封技術(shù),提高密封穩(wěn)定性,對解決往復(fù)式壓縮機(jī)的穩(wěn)定、安全運(yùn)行具有一定的工程應(yīng)用價值。本文結(jié)合國內(nèi)外活塞桿的密封技術(shù)分析了往復(fù)式壓縮機(jī)的活塞桿填料密封結(jié)構(gòu)及原理,結(jié)合常見的密封失效現(xiàn)象,研究活塞桿失效形式和機(jī)理、填料環(huán)失效形式和機(jī)理;對活塞桿的材料成份和表層硬度、填料環(huán)的材料成份通過試驗(yàn),研究其與耐磨性能的關(guān)系;建立密封系統(tǒng)的計(jì)算模型,計(jì)算密封腔內(nèi)摩擦熱、生熱率和對流換熱系數(shù),對新舊不同冷卻結(jié)構(gòu)的密封系統(tǒng)利用Ansys進(jìn)行溫度場分布的模擬,論證了通過冷卻結(jié)構(gòu)的改進(jìn),可以降低填料盒內(nèi)的峰值溫度,提高填料環(huán)耐磨壽命。通過對不同工況下的密封系統(tǒng)溫度場的模擬,研究不同工況因素對溫度場的影響規(guī)律;采用試驗(yàn)裝置對不同壓縮機(jī)轉(zhuǎn)速、不同密封壓力和冷卻水流速情況下密封面的溫度進(jìn)行測試,并進(jìn)行加速試驗(yàn),測量試驗(yàn)后的密封副磨損深度,在一定程度上驗(yàn)證本文的研究理論。
[Abstract]:Reciprocating gas compressor is an important equipment in petrochemical industry, which has an important impact on the production of petrochemical products. In actual production, the piston rod seal stability of domestic compressor is low, easy to leak. Frequent shutdown and maintenance significantly affect the normal production of enterprises. At the same time, the safety loss caused by gas leakage is more serious. Therefore, the piston rod seal technology of reciprocating compressor is studied to improve the seal stability. This paper analyzes the structure and principle of piston rod packing seal of reciprocating compressor combined with the sealing technology of piston rod at home and abroad. Combined with the common sealing failure phenomenon, the failure form and mechanism of piston rod and packing ring are studied. The relationship between the material composition and the surface hardness of the piston rod and the material composition of the packing ring is studied. The calculation model of seal system is established, and the heat of friction, heat generation and convection heat transfer coefficient of seal cavity are calculated. The distribution of temperature field of seal system with new and old cooling structures is simulated by Ansys. Through the improvement of cooling structure, the peak temperature in the packing box can be reduced, and the wear resistance life of the packing ring can be improved. The temperature field of the sealing system under different working conditions is simulated. The influence of different working conditions on the temperature field is studied. The temperature of seal face under different compressor speed, different seal pressure and cooling water flow rate was measured by test device, and accelerated test was carried out to measure the wear depth of seal pair after test. To some extent, the research theory of this paper is verified.
【學(xué)位授予單位】：上海交通大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TE65;TQ051.21

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本文編號：1392133