【摘要】：MCO (MC表示機殼水平剖分結(jié)構(gòu),O表示單懸臂葉輪)空壓機組是通過其自身的壓縮級別來控制壓縮機出口工藝氣體壓力的增壓裝置。MCO空壓機組已廣泛應用于空分、冶金、化工、電力、醫(yī)藥和食品等各工業(yè)部門。其結(jié)構(gòu)越來越復雜,它的高效負荷,安全、長期運轉(zhuǎn)與企業(yè)的經(jīng)濟效益有直接關(guān)系。 本課題來源于安徽晉煤中能化工股份有限公司20萬噸／年合成氨原料路線調(diào)整改造工程MCO空壓機組。該合成氨原料路線調(diào)整改造工程壓縮機選用沈陽鼓風機集團有限公司生產(chǎn)的MCO1004+3BCL407壓縮機組,汽輪機選用杭州汽輪機股份有限公司生產(chǎn)的NKS40/56汽輪機。 本課題的研究內(nèi)容主要包括以下幾個方面： (1)分析了MCO空壓機組導葉調(diào)節(jié)器結(jié)構(gòu)以及國外空壓機組導葉調(diào)節(jié)器執(zhí)行機構(gòu)現(xiàn)狀,闡明了MCO執(zhí)行機構(gòu)的拉力、推力計算過程及選型要求,確定導葉執(zhí)行機構(gòu)自動控制過程。 (2)分析MCO空壓機組軸承振動和位移的監(jiān)控和保護,通過倍頻完成開車,完成機組監(jiān)測保護系統(tǒng)設(shè)計。 (3)分析MCO空壓機組入口介質(zhì)溫度隨四季變化的特點,研發(fā)出適合于空壓機組的防喘振控制方案。 (4)根據(jù)MCO空壓機組工藝流程特點,完成MCO空壓機組工藝流程設(shè)計。 (5)分析TS3000工作原理,闡明控制系統(tǒng)的重要性、必要性及可靠性,完成MCO空壓機組控制系統(tǒng)設(shè)計。 本文闡述了空壓機組的特點、儀表選型依據(jù)及優(yōu)化控制,為進一步研究MCO空壓機組控制系統(tǒng)提供了參考。
[Abstract]:MCO air compressor is a supercharging device that controls the process gas pressure at the outlet of compressor through its own compression grade. MCO air compressor has been widely used in air separation and metallurgy. Chemical industry, electricity, medicine and food and other industrial sectors. Its structure is becoming more and more complex, and its high efficiency load, safety and long-term operation are directly related to the economic benefits of the enterprise. This subject comes from Anhui Jinneng Chemical Co., Ltd. 200000 tons / year synthetic ammonia raw material route adjustment and transformation project MCO air compressor unit. The compressor of the synthetic ammonia raw material route adjustment and transformation project is MCO1004 3BCL407 compressor produced by Shenyang Blower Group Co., Ltd., and the steam turbine is NKS40/56 steam turbine produced by Hangzhou Steam Turbine Co., Ltd. The research contents of this subject mainly include the following aspects: (1) the structure of guide vane regulator of MCO air compressor unit and the present situation of actuator of guide vane regulator of air compressor unit in foreign countries are analyzed, and the tension of MCO actuator is expounded. The thrust calculation process and selection requirements are determined, and the automatic control process of guide vane actuator is determined. (2) the monitoring and protection of bearing vibration and displacement of MCO air compressor unit are analyzed, and the monitoring and protection system design of the unit is completed by frequency doubling. (3) the characteristics of the inlet medium temperature of MCO air compressor unit with four seasons are analyzed, and the anti-surge control scheme suitable for air compressor unit is developed. (4) according to the technological process characteristics of MCO air compressor unit, the technological process design of MCO air compressor unit is completed. (5) the working principle of TS3000 is analyzed, the importance, necessity and reliability of the control system are expounded, and the control system design of MCO air compressor unit is completed. This paper expounds the characteristics of air compressor unit, the basis of instrument selection and optimal control, which provides a reference for further study of the control system of MCO air compressor unit.
【學位授予單位】：東北大學
【學位級別】：碩士
【學位授予年份】：2012
【分類號】：TH45;TP273

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