本文選題：電液閥控制 + 監(jiān)控系統(tǒng)�。� 參考：《北京化工大學(xué)》2015年碩士論文

【摘要】：液態(tài)類物料汽車定量裝車系統(tǒng)在石油化工類企業(yè)中有很長(zhǎng)的使用歷史,至今仍然是一種普遍使用的、不可缺少的裝置系統(tǒng)。典型的液態(tài)類物料汽車定量裝車系統(tǒng)是由液態(tài)物料儲(chǔ)運(yùn)罐區(qū)、物料輸送泵、物料輸送管線和裝車站臺(tái)等設(shè)施組成。在以往的裝車作業(yè)中,操作人員主要借助簡(jiǎn)單的儀器進(jìn)行現(xiàn)場(chǎng)觀測(cè)(液位檢尺),加上人工手動(dòng)操作進(jìn)行工作,自動(dòng)化程度很低。為此,本文以中油寧波油庫工程汽油、柴油汽車裝車棧臺(tái)項(xiàng)目為背景,從實(shí)際情況出發(fā)進(jìn)行了以下研究：(1)經(jīng)過分析與研究,對(duì)裝車過程工藝流程特點(diǎn)進(jìn)行梳理與總結(jié),明確了定量裝車系統(tǒng)的控制對(duì)象和控制目的,考慮了企業(yè)和客戶的實(shí)際需求,設(shè)計(jì)研究了一種面向用戶的自動(dòng)化裝車控制系統(tǒng)。本文首先研究了采用定量裝車控制器為核心的定量裝車控制系統(tǒng),其次研究了以DCS為控制核心的裝車控制系統(tǒng),綜合兩個(gè)系統(tǒng)在實(shí)際應(yīng)用中的優(yōu)缺點(diǎn),設(shè)計(jì)提出了一種改進(jìn)的裝車系統(tǒng),既能夠在現(xiàn)場(chǎng)操作完成定量裝車控制又能在控制室完成定量裝車控制,并且能夠完成高級(jí)裝車控制算法。(2)基于對(duì)裝車過程和數(shù)字電液閥特性的分析,本文研究了裝車流量與裝車量間的關(guān)系,給出了裝車控制過程控制方法,利用電液閥多級(jí)開啟和多級(jí)關(guān)閉的控制方式最大限度的降低了裝車作業(yè)中“水擊”現(xiàn)象的影響,在保護(hù)了設(shè)備的前提下,使生產(chǎn)效率得到了提高。通過研究裝車精度的影響因素,設(shè)計(jì)了預(yù)知量自整定程序的數(shù)學(xué)表達(dá),使系統(tǒng)在適應(yīng)各種環(huán)境下的工作并改善了裝車的精度。(3)本文完成了定量裝車控制系統(tǒng)總的設(shè)計(jì)方案、控制系統(tǒng)硬件配置、以及裝車算法的提高。達(dá)到了對(duì)現(xiàn)場(chǎng)儀表信號(hào)的接收、運(yùn)算處理、及相關(guān)控制。定量裝車系統(tǒng)兼具現(xiàn)場(chǎng)和控制室控制的特點(diǎn),并且能夠?qū)崿F(xiàn)報(bào)警監(jiān)測(cè)、歷史信息查詢、多種報(bào)表打印存儲(chǔ)等較為完善的功能。
[Abstract]:The liquid material vehicle quantitative loading system has a long history of use in petrochemical enterprises and is still a widely used and indispensable device system. The typical liquid material vehicle loading system is composed of liquid material storage and transportation tank area, material conveying pump, material conveying pipeline, loading station and so on. In the past loading operations, the operators mainly use simple instruments to carry out field observation (liquid level gauge), and manual operation to work, the degree of automation is very low. Therefore, based on the project of gasoline and diesel truck loading stacks in Ningbo Oil Depot of CNOOC, the following researches are carried out: (1) through analysis and research, the characteristics of loading process are sorted and summarized. The control object and control purpose of the quantitative loading system are defined. Considering the actual needs of enterprises and customers, a user-oriented automatic loading control system is designed and studied. This paper first studies the quantitative loading control system with the quantitative loading controller as the core, and then studies the loading control system with DCS as the core, synthesizing the advantages and disadvantages of the two systems in the practical application. In this paper, an improved loading system is designed, which can not only finish the quantitative loading control in the field operation, but also complete the quantitative loading control in the control room. And can complete the advanced loading control algorithm. (2) based on the analysis of loading process and digital electro-hydraulic valve characteristics, this paper studies the relationship between loading flow and loading quantity, and gives the control method of loading control process. The effect of "water hammer" in loading operation is minimized by using the control mode of multi-stage open and multistage closure of electro-hydraulic valve, and the production efficiency is improved under the premise of protecting the equipment. By studying the influencing factors of loading precision, the mathematical expression of self-tuning program of predictive quantity is designed, which makes the system adapt to various environments and improve the accuracy of loading. (3) the overall design scheme of quantitative loading control system is completed in this paper. The hardware configuration of the control system and the improvement of the loading algorithm. To achieve the field instrument signal reception, operation and processing, and related control. The quantitative loading system has both the characteristics of field control and control room, and it can realize more perfect functions such as alarm monitoring, historical information query, printing and storage of various report forms and so on.
【學(xué)位授予單位】：北京化工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TE97

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 張友兵;;汽車裝車定量系統(tǒng)綜合設(shè)計(jì)[J];儀器儀表用戶;2014年01期

2 陳禎源;;定量裝車系統(tǒng)的自控設(shè)計(jì)[J];廣州化工;2013年09期

3 呂志剛;王鵬;;基于μC/OS-Ⅱ的流量計(jì)量控制儀的設(shè)計(jì)[J];自動(dòng)化與儀表;2011年07期

4 袁崇高;王建華;;油庫信息化系統(tǒng)研究與應(yīng)用[J];中國(guó)儲(chǔ)運(yùn);2011年04期

5 王強(qiáng);;淺析鐵路油罐車定量裝車控制系統(tǒng)[J];黑龍江科技信息;2009年28期

6 呂大飛;;PLC在高爐自動(dòng)監(jiān)控系統(tǒng)中的應(yīng)用[J];自動(dòng)化與儀器儀表;2009年03期

7 朱華鋒;徐驍;程佳成;;汽車油罐車下裝技術(shù)應(yīng)用淺談[J];石油規(guī)劃設(shè)計(jì);2009年02期

8 薛榮;;石油計(jì)量交接方式與計(jì)量技術(shù)的現(xiàn)狀和展望[J];石油商技;2007年05期

9 蔣慶淵;;定量自動(dòng)裝車技術(shù)在液態(tài)類物料鶴管裝車系統(tǒng)中的應(yīng)用[J];當(dāng)代化工;2007年01期

10 張靜芳;;利用健康、安全與環(huán)境管理體系進(jìn)行變電站危險(xiǎn)點(diǎn)預(yù)控的方法[J];廣東電力;2007年01期

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