本文選題：集散控制系統(tǒng) + 組態(tài)�。� 參考：《北京化工大學(xué)》2015年碩士論文

【摘要】：本文是建立在天然氣凈化廠加氫控制系統(tǒng)的基礎(chǔ)之上,并結(jié)合天然氣凈化廠整套生產(chǎn)裝置的特點(diǎn)：工藝流程比較繁瑣,控制回路相互交錯并且相對復(fù)雜；凈化廠的控制系統(tǒng)(DCS)的控制功能能夠起到集中管理的作用,因此套控制系統(tǒng)具有較高的靈敏性、良好的可拓展性以及優(yōu)良的人機(jī)交互能力等,從控制系統(tǒng)的組態(tài)原理著手,通過對凈化廠最為復(fù)雜的兩個回路控制進(jìn)行逐步研究與優(yōu)化,使其達(dá)到：凈化操作工可以熟練的進(jìn)行操作應(yīng)用、工藝技術(shù)人員可以清楚詳細(xì)的掌握整個生產(chǎn)工藝的控制系統(tǒng)、儀表人員可以為系統(tǒng)正常的運(yùn)行提供良好的維護(hù)保障,最終奠定一個有序生產(chǎn)、穩(wěn)定控制的生產(chǎn)基礎(chǔ)。自動控制系統(tǒng)是一種特殊的控制系統(tǒng),其不需要人為直接控制,而是按照預(yù)定的計劃或者提前設(shè)定的程序完成整個生產(chǎn)過程的控制。該系統(tǒng)主要包括四個主要部分：控制器、被控對象、執(zhí)行機(jī)構(gòu)以及變送器,它的主要目的就是為了實現(xiàn)自動化的結(jié)果。目前,此項系統(tǒng)獲得了較快的發(fā)展,而且已經(jīng)被推廣應(yīng)用到各個生產(chǎn)行業(yè),尤其在生產(chǎn)加工行業(yè)更為突出。本課題通過采用雙限幅交叉組態(tài)與模塊編程結(jié)合的方式,設(shè)計一種欠氧燃燒閉環(huán)控制系統(tǒng)。通過對這兩個復(fù)雜控制回路的研究與優(yōu)化,達(dá)到這種效果：(1)當(dāng)在爐溫超過于設(shè)定值的大小時,溫度控制器TC-40261先減小配風(fēng),再減燃料氣；(2)當(dāng)爐溫低于設(shè)定值的大小時,溫度控制器TC-40261會先提高燃料氣的量,通過燃料氣的量進(jìn)一步調(diào)整風(fēng)量,達(dá)到配風(fēng)不過量,生產(chǎn)穩(wěn)定的目的；(3)最終達(dá)到無論過程氣量如何變化,在爐溫自動控制的情況下,能始終保證整個控制系統(tǒng)處于一個欠氧燃燒存在還原性氣體(H2,CO)的狀態(tài)。
[Abstract]:This paper is based on the hydrogenation control system of the natural gas purification plant, and combines the characteristics of the whole production unit of the natural gas purification plant: the process is relatively cumbersome, the control circuit is interlaced and relatively complex; The control function of the control system (DCS) of the purification plant can play the role of centralized management. Therefore, the set of control system has high sensitivity, good expansibility and excellent human-computer interaction ability, etc., which starts from the configuration principle of the control system. Through the study and optimization of the two most complex loop control in the purification plant, it is achieved that the purification operator can operate and apply skillfully, and the process technician can master the control system of the whole production process clearly and in detail. Instrumentation personnel can provide good maintenance and guarantee for the normal operation of the system, and finally lay a production foundation for orderly production and stable control. Automatic control system is a kind of special control system, which does not need direct artificial control, but completes the control of the whole production process according to the scheduled plan or the program set in advance. The system consists of four main parts: controller, controlled object, actuator and transmitter. The main purpose of the system is to realize the result of automation. At present, the system has been rapidly developed, and has been widely used in various production industries, especially in the production and processing industry. In this paper, a closed loop control system for underoxygen combustion is designed by combining double limiting cross configuration with module programming. Through the research and optimization of these two complex control loops, the effect is achieved: 1) when the furnace temperature exceeds the set value, the temperature controller TC-40261 first reduces the distribution of air, then reduces the fuel gas (FG) 2) when the furnace temperature is lower than the set value, the temperature controller reduces the distribution of air first, and then reduces the fuel gas by 2) when the furnace temperature is below the set value, The temperature controller TC-40261 will first increase the amount of fuel gas, through the amount of fuel gas to further adjust the air volume, to achieve the purpose of air distribution is not excessive, and the purpose of production stability is to finally achieve no matter how the process gas volume changes, under the condition of automatic control of furnace temperature, It can always ensure that the whole control system is in a state where there is a reducible gas H _ 2CO _ 2 in underoxygen combustion.
【學(xué)位授予單位】：北京化工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：X743;TP273

【參考文獻(xiàn)】

相關(guān)期刊論文 前5條

1 蔡云達(dá),郝美;西門子TELEPERM-ME操作報警信息接收系統(tǒng)改造[J];電力學(xué)報;2002年04期

2 葛玻,沈文杰,趙旎;工控組態(tài)軟件的對比及應(yīng)用[J];計算機(jī)自動測量與控制;2002年08期

3 蘇玉鑫,段寶巖;一種新型非線性PID控制器[J];控制與決策;2003年01期

4 敖晨虹,胡海蘭,周麗君;先進(jìn)控制與優(yōu)化控制在過程工業(yè)應(yīng)用中若干問題探討[J];石油化工自動化;2002年05期

5 魏剛;喬磊;馬永波;;SCOT法尾氣處理工藝關(guān)鍵參數(shù)控制及優(yōu)化[J];山東化工;2014年01期

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