发电厂化学在线监控及诊断系统研究

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1、西南交通大学硕士学位论文发电厂化学在线监控及诊断系统研究姓名：陶若冰申请学位级别：硕士专业：电气工程指导教师：郭世明20070601西南交通大学工程硕士研究生学位论文第1I页ABSTRACTWiththedevelopmentoftheelectricpowerindustry，newrequestofadvancedtechniqueandmanagementlevelareputforwardforengineersduringthecourseofbuildingofnewpowerplantorrebuildingo

2、fexistingpowerplant．Improvingmanagementlevelofgeneratingmachineandtheperformanceofoperatordealingwithfaultarepaidmoreattentionto．Sotheonlinemonitoringanddiagnosissystemofwatervaporqualityhasbeenanimportantmethodforensuringnormaloperatingofpowerplant，dealingwithfaul

3、tintimeandpreventingaccident．ItisnecessarytodevelopanewchemistryonlinemonitoringanddiagnosissystembasedonmicrocomputersuitableforpowerplantinChina．Thebaseofthissystemiscontinuousonlinemonitoring．Someessentialchemistryparametersandoperatingparametersareusedasinforma

4、tion，andthemicrocomputerscollectsignalsautomatically．Thequalityofwatervaporaremonitoredandanalyzedthroughdiagnosisprogramprovidedbyexpertswithabundantexperience，andtheputtinginofchemicalmedicamentarecontrolledautomatically．Theprogramalsomayprompttheoperatorshowtode

5、alwiththeabnormalphenomenon，andimprovethejudgeperformanceandflexibilityformeetinganemergencyforoperatorsequaltoalevelofdiagnosisprogram．Theapplicationofchemistrymedicamentonlinemonitoringanddiagnosistechniqueispropitioustosupervisingoperating．Theprogrammabletechniq

6、ue，variable-frequeneyspeedcontroltechniqueandimprovedPIalgorithmareusedincontrolsystemofboilerwatersupplysysteminthispaper．ThedifficultyofmanualcontrolandworsereliabilityofDCspeedcontrolareremoved．Theproposedmethodmaybeappliedinregulatingofwatersupplysystemofpowerp

7、lantboiler，puttingphosphateinboilerwater，puttingwaterqualitystabilizationmedicineandvitriolincyclecoolingwater，puttingsterilizationandreducingagentinpretreatmentsystemofreplenishmentwater，makingthequalityofwastewaterofelectricpowerplantreachingthestandard，chemistry

8、cleanout，medicamentmeasureduringthecourseofprotectionofboilerhalting，liquidmedicamentmeasurein西南交通大学工程硕士研究生学位论文第lII页pharmacycourse，andetc．Thissys