本文關(guān)鍵詞： MACS 空分設(shè)備 控制程序 人機交互　出處：《華北水利水電大學(xué)》2016年碩士論文　論文類型：學(xué)位論文

【摘要】：空分設(shè)備在我國的經(jīng)濟發(fā)展過程中發(fā)揮著重要作用,空分設(shè)備的產(chǎn)品如:氧氣、氮氣、氬氣等在生產(chǎn)和生活各個方面應(yīng)用廣泛[3]。氮氣作為化工生產(chǎn)的主要原料,其使用量巨大。各種常用化肥中的氮含量都很高,硝酸銨氮含量36%,硫酸銨氮含量21%,尿素氮含量46.7%。除此外,氮氣在化肥廠開工生產(chǎn)前或者在生產(chǎn)設(shè)備大修后,還被用來置換管道和容器內(nèi)的空氣和其他雜質(zhì)氣體,確保生產(chǎn)的安全。氧氣用于重油的高溫裂化、煤粉的氣化等工序,以強化工藝過程,提高化肥產(chǎn)量[17]。一般,一套10萬噸的合成氨裝置需配到10000m3/h的制氧機。除了在化肥生產(chǎn)中的應(yīng)用,氧氣在石油化工和工業(yè)生產(chǎn)方面也有著巨大的作用,在石油和化工過程中的氧氣反應(yīng)采用富氧代替空氣進行氧化反應(yīng),可以提高反應(yīng)速度和產(chǎn)品質(zhì)量[23]。處理生產(chǎn)過程中產(chǎn)生的污水,用來給活性炭富氧曝光也可以向污水池增氧,提高細菌活性等。隨著河南某化工公司的產(chǎn)量提升,其對氧氣,氮氣的需求量也在不斷增加,相應(yīng)的對空分設(shè)備也提出了安全生產(chǎn)、經(jīng)濟運營、智能控制的要求。對于空分設(shè)備控制系統(tǒng)來說,則要求同時保證生產(chǎn)的安全性、連續(xù)性、和智能化。要滿足這樣的設(shè)計要求,需要采用安全可靠的工控系統(tǒng)和優(yōu)秀的控制方案。本課題采用和利時DCS控制系統(tǒng)MACS,中央集中監(jiān)控,控制站點分散控制的方式。設(shè)計介紹此公司新增設(shè)一臺20000m3/h空分機組,設(shè)計基于和利時DCS的空分設(shè)備常規(guī)控制系統(tǒng)。主要包括以下特點:1、根據(jù)空分生產(chǎn)工藝特點和控制系統(tǒng)要求,介紹河南某公司新上的空分設(shè)備控制系統(tǒng)的系統(tǒng)結(jié)構(gòu)和硬件配置。2、設(shè)計系統(tǒng)允許生產(chǎn)與停止的連鎖控制邏輯。3、文章對控制算法組態(tài),設(shè)備組態(tài),數(shù)據(jù)庫組態(tài),監(jiān)控畫面組態(tài),歷史庫數(shù)據(jù)采樣與歸檔技術(shù),各閥門操作控制進行設(shè)計論述。采用已有的標(biāo)準(zhǔn)模板,充分利用MACS系統(tǒng)提供的功能,實現(xiàn)很好的人機交互。在論文的設(shè)計中,對壓縮機的防喘振控制技術(shù)進行一定的研究和應(yīng)用。通過本系統(tǒng)的設(shè)計與應(yīng)用,較好的滿足空分設(shè)備生產(chǎn)的需要。
[Abstract]:Air separation equipment plays an important role in the economic development of our country. The products of air separation equipment such as oxygen, nitrogen, argon and so on are widely used in production and life. The amount of nitrogen used is huge. The nitrogen content in various common fertilizers is very high, the ammonium nitrate nitrogen content is 36, the ammonium sulfate nitrogen content is 21, and the urea nitrogen content is 46.7. in addition, nitrogen gas is produced before the fertilizer plant starts production or after the production equipment is overhauled. It is also used to replace air and other impurity gases in pipes and containers to ensure the safety of production. Oxygen is used in high-temperature cracking of heavy oil, gasification of pulverized coal, etc., in order to enhance the process and increase the yield of fertilizer [17]. A 100,000 ton ammonia plant needs a 10000m3 / h oxygen generator. In addition to its application in chemical fertilizer production, oxygen also plays a huge role in petrochemical and industrial production. In the process of petroleum and chemical industry, oxygen enrichment is used instead of air for oxidation reaction, which can improve the reaction speed and product quality [23]. With the increase in the production of a chemical company in Henan Province, the demand for oxygen and nitrogen is also increasing. The corresponding air separation equipment has also put forward safe production and economic operation. Requirements for intelligent control. For air separation equipment control systems, it is necessary to ensure the safety, continuity, and intelligence of production at the same time. It is necessary to adopt safe and reliable industrial control system and excellent control scheme. In this paper, we adopt DCS control system, central centralized monitoring, decentralized control mode of control station. We design and introduce a new 20000m3 / h air separation unit in this company. The conventional control system of air separation equipment based on Hutchison DCS is designed. It mainly includes the following features: 1, according to the characteristics of air separation production process and control system requirements, This paper introduces the system structure and hardware configuration of the new air separation equipment control system of a certain company in Henan Province, and designs the chain control logic .3which allows production and stop. The paper introduces the configuration of control algorithm, equipment configuration, database configuration, monitoring picture configuration. The history database data sampling and archiving technology, each valve operation control carries on the design elaboration. Uses the existing standard template, fully utilizes the function which the MACS system provides, realizes the very good man-machine interaction. The anti-surge control technology of compressor is studied and applied to a certain extent. Through the design and application of this system, it can better meet the needs of air separation equipment production.
【學(xué)位授予單位】：華北水利水電大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2016
【分類號】：TQ116.1;TP273

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本文編號：1539666