循环水系统漏油在线监测仪的设计与实现
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摘要
针对现有的换热器油料泄漏检测方法存在测量精度不高、抗干扰能力差的问题,提出了一种新型检测方法——双电导率法,并由此设计了基于双电导法的油水分离装置,该监测仪采用C8051F020作为主控制器,通过改进的数字滤波算法来消除干扰。为了提高效率,设计了模糊自适应PID控制系统实现对水流量的控制并利用WINCC作上位机开发了过程监控系统,支持GPRS的无线通讯。测试结果表明此监测仪能很好地实现对现场数据的采集处理。
A new type of detection method,double conductivity method,was proposed,and the oil and water separation based on double conductance method was designed for existing oil leakage detection methods for heat exchangers have the problems of low measurement accuracy and poor anti-interference ability.The monitor used C8051F020 as the main controller,through the improved digital filtering algorithm to eliminate the interference.In order to improve the efficiency,the fuzzy adaptive PID control system was designed to control the water flow and used the WINCC as the host computer to develop the process monitoring system to support the wireless communication of GPRS.Test results show that this monitor can be a very good realization of the field data collection and processing.
A new type of detection method,double conductivity method,was proposed,and the oil and water separation based on double conductance method was designed for existing oil leakage detection methods for heat exchangers have the problems of low measurement accuracy and poor anti-interference ability.The monitor used C8051F020 as the main controller,through the improved digital filtering algorithm to eliminate the interference.In order to improve the efficiency,the fuzzy adaptive PID control system was designed to control the water flow and used the WINCC as the host computer to develop the process monitoring system to support the wireless communication of GPRS.Test results show that this monitor can be a very good realization of the field data collection and processing.
引文
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[2] 王伟,赵晓蕾,严莲荷.微生物降解技术处理循环水中油介质泄漏的试验研究[J].工业水处理,2002,22(12):16-18.
[3] 宋爽英.泄漏循环水系统的零排放水处理技术研究及应用[D].南京:南京工业大学,2010.
[4] 骆重阳,高磊.炼化装置换热器油料泄漏在线监测系统的应用[J].中国给水排水,2012,28(19):55-58.
[5] 王巍.炼油厂水冷器泄漏原因分析及解决办法[J].石油化工设备技术,2012,33(1):45-49.
[6] DAGHBOUCHE,YASMINA.Evaluation of extraction alternatives for Fourier transform infrared spectrometric determination of oil and greases in water[J].Analytical Chemical Acta,1997,345:161-171.
[7] 常春芝.工业循环水系统漏油在线监测仪的研制[J].工业用水与废水,1999(2):18-20.
[8] 徐强,靳从,徐国安.含油水质检测系统的研制及试验[J].仪器仪表与分析监测,1998(4):10-12.
[9] 龚红霞,肖玉.在线水中油分监测控制系统在动力凝结水装置的应用[J].化工自动化及仪表,2013,40(9):1093-1094.
[10] 李紫怡.炼油厂换热器泄漏监测系统研究[J].内蒙古石油化工,2015,16(5):3-5.
[11] 庄媛,赵晓祥,周美华.水体中油污染状况及微量油测定方法的比较[J].环境科学与技术,2012,35(6):79-83.
[12] ZHANG H,LI Y N,ZHU H L.Development for conversion gatway of profibus and Modbus[J].Procedia Engineering,2011,15(8):767-771.
[13] 刘顺起,郎岩梅.滤波算法的程序实现[J].军民两用技术与产品,2015(16).
[14] 陈志永.自动换档水电导率仪的研制[D].天津:河北工业大学,2004.