火力发电厂热控保护装置检修方法马连彬(中电建湖北电力建设有限公司,湖北武汉430080)摘要:为提高热控保护装置的运行稳定性,更好地发挥装置效能,对火力发电厂热控保护装置检修方法开展设计研究。设置信号传感器,将其部署在热控保护装置前端,采集热控保护装置运行中的模拟信号,对应的信号将通过转换器进行滤波处理,以此实现对火力发电厂热控保护装置的运行监测;引进装置运行自检系数与运行状态综合评估系数,建立热控保护装置定期检修状态空间模型;根据热控保护装置在空间模型中的运行状态,进行运行风险评估,再设定热控保护装置检修周期。试验结果表明,该设计方法可以降低检修漏检率,将其控制在0%~2%范围内,检修后的热控保护装置可用度更高。关键词:火力发电厂;检修方法;热控保护装置中图分类号:TK268DOI:10.19768/j.cnki.dgjs.2023.02.056IntelligentFusionFaultDiagnosisMethodforBoilerinThermalPowerPlantMALianbin(HubeiElectricPowerConstructionCo.,Ltd.,Wuhan430080,China)Abstract:Inordertoimprovetheoperationstabilityofthermalcontrolprotectiondeviceandgivebetterplaytotheeffi-ciencyofthedevice,thedesignandresearchonthemaintenancemethodofthermalcontrolprotectiondeviceinthermalpowerplantwerecarriedout.Thesignalsensorisdeployedinthefrontofthedevicetocollecttheanalogsignalofthethermalcontrolprotectiondeviceinoperation,andthecorrespondingsignalwillbefilteredthroughtheconverter,soastorealizetheoperationmonitoringofthermalcontrolprotectiondeviceinthethermalpowerplant.Theself-checkingcoeffi-cientandthecomprehensiveevaluationcoefficientoftheoperationstatewereintroducedtoestablishtheperiodicmainte-nancestatespacemodelofthethermalcontrolprotectiondevice.Accordingtotherunningstateofthethermalcontrolpro-tectiondeviceinthespacemodel,theoperationriskassessmentiscarriedoutandthemaintenanceperiodofthethermalcontrolprotectiondeviceisset.Theexperimentalresultsshowthatthedesignmethodcanreducethemisseddetectionrateofmaintenanceandcontrolitintherangeof0%~2%.Keywords:thermalpowerplant;maintenancemethod;thermalcontrolprotectiondevice收稿日期:2022-11-060引言尽管火力发电厂运维管理人员已经认识到热控保护装置日常检修工作的重要性,并加大了对其检修工作的投入,但其...
