19自動(dòng)化論文：自動(dòng)化過程控制系統(tǒng)在雙乙烯酮工藝生產(chǎn)中的應(yīng)用研究

1、自動(dòng)化論文：自動(dòng)化過程控制系統(tǒng)在雙乙烯酮工藝生產(chǎn)中的應(yīng)用研究【中文摘要】生產(chǎn)過程自動(dòng)化是一門綜合性的技術(shù)學(xué)科,綜合利用自動(dòng)控制器儀表學(xué)科以及計(jì)算機(jī)學(xué)科的理論服務(wù)于化學(xué)工程學(xué)科更是大家所研究的目標(biāo)。本文從化工生產(chǎn)出發(fā),結(jié)合山東新華制藥股份有限公司的雙乙烯酮生產(chǎn)工藝過程,對(duì)自動(dòng)化過程控制系統(tǒng)在生產(chǎn)過程中的應(yīng)用和改進(jìn)進(jìn)行了一些探索。本論文主要研究在雙乙烯酮工藝生產(chǎn)中完善和優(yōu)化自動(dòng)化過程控制系統(tǒng),進(jìn)行穩(wěn)定有效的自動(dòng)化過程檢測(cè)、控制和報(bào)警連鎖,提高產(chǎn)品的質(zhì)量和生產(chǎn)安全性。通過對(duì)自動(dòng)化過程控制系統(tǒng)的發(fā)展程度和雙乙烯酮生產(chǎn)工藝過程進(jìn)行了較詳細(xì)的分析和研究,找出了在雙乙烯酮工藝生產(chǎn)中自動(dòng)化過程控制系統(tǒng)對(duì)質(zhì)量控

2、制、安全環(huán)保、節(jié)能及系統(tǒng)等方面存在的問題,并逐一對(duì)問題進(jìn)行剖析,設(shè)計(jì)了相應(yīng)改進(jìn)方案,并組織了方案實(shí)施。(1)過程控制系統(tǒng)檢測(cè)的防干擾措施,采用屏蔽、隔離、接地等技術(shù),消除干擾,保證裂解爐的電流值和裂解爐溫度數(shù)值變化平穩(wěn)。(2)采用自動(dòng)控制技術(shù),設(shè)計(jì)了磷酸三乙酯的流量控制和安全罐液位的自動(dòng)排放,提高了產(chǎn)品的質(zhì)量,降低了操作人員的勞動(dòng)強(qiáng)度和提高了工藝生產(chǎn)的安全性能。(3)安全報(bào)警與連鎖的應(yīng)用,對(duì)車間27個(gè)重要參數(shù)進(jìn)行了報(bào)警方案的設(shè)計(jì),并對(duì)報(bào)警信息和報(bào)警燈進(jìn)行設(shè)置。同時(shí)對(duì)泵的狀態(tài)監(jiān)控也進(jìn)行了相應(yīng)的設(shè)計(jì),使開停泵有語音提示,便于及時(shí)發(fā)現(xiàn)故障。(4)節(jié)能措施的實(shí)施,電能是雙乙烯酮工藝生產(chǎn)中消耗最多的能源

3、,對(duì)用能情況進(jìn)行合理監(jiān)控,發(fā)現(xiàn)耗能異常,及時(shí)處理,減少能源消耗。(5)廢水排放指標(biāo)的在線檢測(cè)設(shè)計(jì)及儀器制作。按照工藝要求,設(shè)計(jì)了廢水檢測(cè)方案,主要對(duì)廢水的pH和電導(dǎo)率進(jìn)行在線檢測(cè)和發(fā)布。測(cè)控原理是對(duì)廢水的參數(shù)采集、采樣、檢測(cè)、排放、留樣和清洗進(jìn)行控制,檢測(cè)數(shù)據(jù)可以記錄、查詢、報(bào)警。便于對(duì)生產(chǎn)車間排放廢水進(jìn)行實(shí)時(shí)監(jiān)控和保障正常生產(chǎn)。(6)系統(tǒng)優(yōu)化和完善,根據(jù)實(shí)際需要,對(duì)過程控制系統(tǒng)進(jìn)行了部分的硬件更新和軟件組態(tài)調(diào)整。特別是系統(tǒng)冗余,使三臺(tái)上位機(jī)都為主站,修改互各,功能相同。通訊使用工業(yè)以太網(wǎng)技術(shù),速度快,能力強(qiáng)、可靠性高。運(yùn)行結(jié)果表明,系統(tǒng)具有安全、穩(wěn)定等優(yōu)點(diǎn),系統(tǒng)投入運(yùn)行后提高了雙乙烯酮的產(chǎn)品

4、質(zhì)量,提高了工藝生產(chǎn)的自動(dòng)化程度,大大減輕了操作人員的勞動(dòng)強(qiáng)度,完善了生產(chǎn)過程的在線集中監(jiān)控,在質(zhì)量、安全、環(huán)保及節(jié)能等方面創(chuàng)造了顯著的經(jīng)濟(jì)效益與社會(huì)效益?！居⑽恼縏he Production Process Automation is a comprehensive and technical subject. It integratedly utilizes the subject of automatic control instrument and the theory of computer to serve for the chemical engineering subjec

5、t. This is the goal of our study. This article starts from chemical production, combined with the production process of Diketene which is produced by Shandong Xinhua Pharmaceutical Co., Ltd. It also makes explorations for the use and improvement on automatic process control system in the production.

6、This article mentions that how to perfect and optimize the automatic process control system in the production of Deketene. Make stable and efficient inspection, control and alarm chain of the automatic process. Improve the product quality and the safety of production.We analysed the development leve

7、l of automatic process control system and studied the production process of Diketene in detail. We found out many problems in the aspects of quality control, safety and environmental protection,energy saving and system reform which occur in the automatic process control system during the production

8、process of Diketene. We studied the problems one by one and designed the corresponding improvement plans. These plans have been implemented.(1) The anti-interference measures inspected by process control system use the techniques of shielding, isolation, grounding in order to eliminate the interfere

9、nce and ensure stable change on the current and temperature values of the cracking furnace.(2) Use the technology of automatic control and design the flow control & automatic control for the safety tank level of Triethyl phosphate. It improved the product quality and the safety performance of proces

10、s production,reduced the labor intensity of operators. (3) Security alarm and chain applications. Design the alarm plan for the twenty seven important parameters of the workshop. Set the alarm information and the lights. The monitoring of pump condition is also designed. The voice prompt is accompan

11、ied by Pump opening and closing. This is convenient for finding the faults in time.(4) The implementation of energy saving measures. The electric energy is consumed at maximum during the process production of Diketene. Monitor the energy consumption reasonably and treat timely when find abnormal ene

12、rgy consumption.(5) On-line design and equipment production for wasterwater emission index.Designed the inspecting plan according to the requirement of process.It release and monitor on-line mainly for the PH and conductivityof wastewater. The theory is that control the collection, sampling, testing

13、, emmsions, retention samples, cleaning. The inspected data can be recorded, inquired and alarmed. It supplys the convenience for the workshop to monitor wastewater emission and ensure the normal production.(6) System optimization and improvement. Make partially the hardware update and software conf

14、iguration adjustment for the process control system. Especially for the system redundancy, Make three upper monitor as main station. Modify for preparation with the same function. Communicaton with industrial Ethernet technology. It is speedy with high ability and reliability.The operation result sh

15、ows that the system has these advantages such as security and stability. After the system were put into operation,it improved the product quality of Diketene and automation of production process,greatly reduced the labor intensity,perfected the on-line concentration monitoring for production process

16、. It created the remarkable economic and social benefits in quality, safely, environmental protection and energy saving etc.【關(guān)鍵詞】自動(dòng)化 過程控制系統(tǒng) 雙乙烯酮生產(chǎn)工藝 優(yōu)化 改進(jìn)【英文關(guān)鍵詞】Automation Process Control System Production process for Diketene Optimization Improvement【目錄】自動(dòng)化過程控制系統(tǒng)在雙乙烯酮工藝生產(chǎn)中的應(yīng)用研究目錄4-8CATALOGUE8-12中文摘

17、要12-14ABSTRACT14-15符號(hào)說明17-18第一章 緒論18-201.1 引言181.2 立題的目的、依據(jù)及意義181.3 研究的主要內(nèi)容18-191.4 論文結(jié)構(gòu)19-20第二章 過程控制發(fā)展與現(xiàn)狀20-242.1 工業(yè)生產(chǎn)過程控制系統(tǒng)的綜述20-212.2 可編程序控制器的應(yīng)用與發(fā)展21-222.3 計(jì)算機(jī)監(jiān)控系統(tǒng)22-24第三章 雙乙烯酮生產(chǎn)工藝簡介24-273.1 工藝生產(chǎn)流程簡述243.2 雙乙烯酮主要生產(chǎn)工藝過程24-253.3 雙乙烯酮生產(chǎn)的主要化學(xué)反應(yīng)253.4 雙乙烯酮生產(chǎn)工藝過程特點(diǎn)25-27第四章 雙乙烯酮生產(chǎn)過程控制系統(tǒng)現(xiàn)狀和存在的問題27-304.1 雙乙

18、烯酮生產(chǎn)過程控制系統(tǒng)現(xiàn)狀27-284.2 雙乙烯酮生產(chǎn)過程控制系統(tǒng)存在的問題28-30第五章 抗干擾方法和措施30-345.1 現(xiàn)狀分析305.2 裂解爐溫度不穩(wěn)的原因分析305.3 影響控制系統(tǒng)穩(wěn)定的主要干擾30-315.3.1 輻射干擾30-315.3.2 傳導(dǎo)干擾315.3.3 地電位的分布干擾315.3.4 控制系統(tǒng)內(nèi)部產(chǎn)生的干擾315.4 主要抗干擾措施31-325.5 效果32-34第六章 自動(dòng)控制技術(shù)應(yīng)用設(shè)計(jì)與實(shí)施34-396.1 現(xiàn)狀分析346.2 控制原理34-356.3 控制措施的實(shí)現(xiàn)35-376.3.1 催化劑流量控制35-366.3.2 安全罐液位控制36-376.4 效果37-39第七章 自動(dòng)報(bào)警與安全聯(lián)鎖技術(shù)措施與實(shí)施39-467.1 現(xiàn)狀分析397.