教学单元 2 市政管道开槽施工 Teaching Unit 2 Municipal Pipeline Trenching Construction 2.5 管道的铺设与接口 2.5 Pipeline Installation and Joint18课件讲解.pptx

教学单元2市政管道开槽施工TeachingUnit2:MunicipalPipelineTrenchingConstruction2.5管道的铺设与接口2.5PipelineInstallationandJoints

2.5.7管道安装质量检查2.5.7PipelineInstallationQualityInspection3、给水管道的水质检查（冲洗与消毒）3.WaterQualityInspectionofWaterSupplyPipelines(FlushingandDisinfection)给水管道试验合格后，竣工验收前应进行冲洗、消毒，使管道出水符合《生活饮用水卫生标准》GB5749—2006的要求，经验收合格后才能交付使用。Afterthewatersupplypipelinespassthetesting,theyshouldbeflushedanddisinfectedbeforethecompletioninspectiontoensurethatthewaterqualitymeetstherequirementsoftheStandardsforDrinkingWaterQualityGB5749—2006.Thepipelinescanonlybeputintouseafterpassingtheinspection.

2.5.7管道安装质量检查2.5.7PipelineInstallationQualityInspection3、给水管道的水质检查（冲洗与消毒）3.WaterQualityInspectionofWaterSupplyPipelines(FlushingandDisinfection)管道冲洗主要是将管内杂物全部冲洗干净，使排出水的水质与自来水状态一致。水质未达到要求时，冲洗水要通过放水口排至附近水体或排水管道。排水时应取得有关单位协助，确保安全、畅通排放。Themainpurposeofpipelineflushingistocleanoutalldebrisinsidethepipelinesothatthequalityofthedischargedwatermatchesthatofthetapwater.Ifthewaterqualitydoesnotmeetthestandards,theflushingwatershouldbedischargedthroughtheoutlettonearbywaterbodiesordrainagepipes.Duringdrainage,assistancefromrelevantunitsshouldbeobtainedtoensuresafeandsmoothdischarge.安装放水口时，其冲洗管接口应严密，并设有闸阀、排气管和放水龙头，弯头处应进行临时加固，如图：Wheninstallingthedischargeoutlet,theflushingpipeconnectionsshouldbetightlysealedandequippedwithvalves,airvents,andfaucets.Bendsinthepipeshouldbetemporarilyreinforced,asshowninthefigure:放水口安装示意图SchematicDiagramofDischargeOutletInstallation1-管道；2-放水龙头；3-闸阀；4-排气管；5-插盘短管1-Pipeline;2-Faucet;3-Valve;4-AirVent;

5-ShortInsertionTube

2.5.7管道安装质量检查2.5.7PipelineInstallationQualityInspection3、给水管道的水质检查（冲洗与消毒）3.WaterQualityInspectionofWaterSupplyPipelines(FlushingandDisinfection)1）准备工作。1)Preparation.2）开闸冲洗。2)Openthevalvesforflushing.3）检查水质。3)Checkthewaterquality.4）关闭闸阀。4)