【摘要】：MCO (MC表示機(jī)殼水平剖分結(jié)構(gòu),O表示單懸臂葉輪)空壓機(jī)組是通過(guò)其自身的壓縮級(jí)別來(lái)控制壓縮機(jī)出口工藝氣體壓力的增壓裝置。MCO空壓機(jī)組已廣泛應(yīng)用于空分、冶金、化工、電力、醫(yī)藥和食品等各工業(yè)部門(mén)。其結(jié)構(gòu)越來(lái)越復(fù)雜,它的高效負(fù)荷,安全、長(zhǎng)期運(yùn)轉(zhuǎn)與企業(yè)的經(jīng)濟(jì)效益有直接關(guān)系。 本課題來(lái)源于安徽晉煤中能化工股份有限公司20萬(wàn)噸／年合成氨原料路線調(diào)整改造工程MCO空壓機(jī)組。該合成氨原料路線調(diào)整改造工程壓縮機(jī)選用沈陽(yáng)鼓風(fēng)機(jī)集團(tuán)有限公司生產(chǎn)的MCO1004+3BCL407壓縮機(jī)組,汽輪機(jī)選用杭州汽輪機(jī)股份有限公司生產(chǎn)的NKS40/56汽輪機(jī)。 本課題的研究?jī)?nèi)容主要包括以下幾個(gè)方面： (1)分析了MCO空壓機(jī)組導(dǎo)葉調(diào)節(jié)器結(jié)構(gòu)以及國(guó)外空壓機(jī)組導(dǎo)葉調(diào)節(jié)器執(zhí)行機(jī)構(gòu)現(xiàn)狀,闡明了MCO執(zhí)行機(jī)構(gòu)的拉力、推力計(jì)算過(guò)程及選型要求,確定導(dǎo)葉執(zhí)行機(jī)構(gòu)自動(dòng)控制過(guò)程。 (2)分析MCO空壓機(jī)組軸承振動(dòng)和位移的監(jiān)控和保護(hù),通過(guò)倍頻完成開(kāi)車(chē),完成機(jī)組監(jiān)測(cè)保護(hù)系統(tǒng)設(shè)計(jì)。 (3)分析MCO空壓機(jī)組入口介質(zhì)溫度隨四季變化的特點(diǎn),研發(fā)出適合于空壓機(jī)組的防喘振控制方案。 (4)根據(jù)MCO空壓機(jī)組工藝流程特點(diǎn),完成MCO空壓機(jī)組工藝流程設(shè)計(jì)。 (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(jī)組控制系統(tǒng)設(shè)計(jì)。 本文闡述了空壓機(jī)組的特點(diǎn)、儀表選型依據(jù)及優(yōu)化控制,為進(jìn)一步研究MCO空壓機(jī)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(xué)位授予單位】：東北大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2012
【分類(lèi)號(hào)】：TH45;TP273

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