Polyurethane foam insulation spiral steel pipe manufacturers shape industry quality and open the market with quality
Release time:
2018-12-07
Author:
Source:
HebeiLongduPipelinelearnedthatpolyurethanefoaminsulationspiralsteelpipemanufacturersshapethequalityoftheindustrytoopenthemarketwithquality PrefabricateddirectburiedinsulationpipeismoreconvenientandsafetoapplyWhatcanbedonetobetterplaytheroleofprefabricateddirectburiedinsulationpipe?Ofcourse,itiseasytouseandsafe.Today,Xiaobianwillcometotellyouaboutit.Inadditiontothehigh-temperatureprefabricateddirect-buriedinsulationpipesproducedoutsideChina,thereareleakalarmlines.Oncethepipelineleakssomewhere,thetransmissionofthealarmlinecanshowtheaccurateleakageofwaterandwaterleakageonthespecialinspectioninstruments.Thelocationandthedegreeofleakage,inordertoinformtheinspectingpersonneltoquicklydealwiththeleakingpipesectiontoensurethesafeoperationoftheheatingpipenetwork.Thedomesticallyproducedinsulationpipeiscurrentlyequippedwithaleakagealarmline,andtheprefabricateddirectburiedinsulationpipeneedstobefilledwiththisblank.Thehigh-temperatureprefabricateddirect-buriedinsulationpipenotonlyhastheadvancedtechnologyandpracticalperformancethatisdifficulttocomparewiththetraditionaltrenchandoverheadlayingpipeline.Thehigh-temperatureprefabricateddirect-buriedthermalinsulationpipeiscomposedofsteelpipe,FRPinnersheathandglassfiberreinforcedplasticshell,andischaracterizedby:hightemperatureresistanceInsulationinsulationlayer,leakagealarmline:Whenmanufacturinghightemperatureprefabricateddirectburiedinsulationpipe,intheinsulationlayerclosetothesteelpipe,theprefabricateddirectburiedinsulationpipeisburiedwithanalarmline.Oncethepipeleakssomewhere,thetransmissionthroughthealarmline,Itcanalarmonthespecialdetectioninstrumentanddisplaytheexactpositionofthewaterleakageandthedegreeofleakage,soastoinformthemaintenancepersonneltoquicklyhandletheleakingpipesectionandensurethesafeoperationoftheheatingnetwork.Lubricatinglayer,elasticseal.Theutilitymodeleffectivelysolvestheproblemofheatpreservation,slidinglubricationandwaterproofingoftheexposedpipeendoftheprefabricateddirectburiedthermalinsulationpipeforthehightemperatureheattransferof130°C-600°Cinurbancentralheating.Prefabricateddirectburiedinsulationpipealsohassignificantsocialandeconomicbenefits,andisalsoapowerfulmeasureforheatingenergy.TheadoptionofdirectburiedheatingpipelinetechnologyindicatesthatthedevelopmentofChina'sheatingpipelinetechnologyhasenteredanewstartingpoint.Withthefurtherimprovementanddevelopmentofthisadvancedtechnology,itisimperativetodirectlyreplacethetrenchandoverheadoftheheatingpipeline.Withtheexpansionoftheapplicationrangeofprefabricateddirectburiedinsulationpipes,peoplehavebeguntopayattentiontohowtouseitmoresafelyandconveniently.Now,ifyourememberthesmallseries,youcanusetheprefabricateddirectburiedinsulationpipe. Pre-madedirectburiedinsulationpiperepairingsiteconstructionproblemanswerIntheconstructionprocessofprefabricateddirectburiedinsulationpipe,themostdifficultanddifficultproblemistheconstructionofprefabricateddirectburiedinsulationpipe.However,manyconstructionworkersarenotsurehowtodealwithunexpectedproblems.Today,RongbangxiaoEditedtoanswertheon-sitetreatmentmeasuresforsomeproblemsthatoftenoccurattheconstructionsite. 1.Whatarethemethodsforon-sitefillingofdirect-buriedplasticsleevesteelprefabricatedinsulationpipe?Themainfunctionofthemouthistotightlyconnectthegaptothemothertubetoachievethepurposeofsealingandwaterproofing.Thefollowingtwomethodsarerecommended:1diameterlessthan500mm,sleevesleevefillingmethod,whichiseasytooperateandlowincost;2diametergreaterthan500mm,usingelectricheatingsleevetofillthemouth,althoughthecostishigher,buttheprojectThequalityismoreguaranteed. 2.Howtocarryouton-siteoperationwithsleeves?Sleevesleevesareusuallydeterminedbasedonthetypeoftheparenttubeandthelengthofthemouth.Generallyspeaking,thediameterofthesleevetubeislargerthanthatofthemothertube,andthelengthisabout20-30cmlongerthanthelengthofthemouth.Forexample:thelengthofthe180mmdiameterinsulationtubeis30cm,andthesleevetubeisusually190mmindiameterand50-60cminlength.Specificoperationsteps:1Beforethesteelpipeiswelded,putthesleevesleeveintothetube.Afterthesteeltubeiswelded,slidethesleevetubetothemouth.Thebalanceatbothendsisaboutthesame.Bothendsaresealedwithheatshrinkabletape.2Openatoneendofthesleevetube.A30mmdiameterinjectionholeandthesameendofthesamesizeventhole,thepolyurethanematerialisevenlypouredorinjectedwithacastingmachine,afterthefoamingiscompleted,itcanbesealedwithaspecialplug. 3.Howtousetheelectricheatingsleevetorepairthemouth?Firstselecttheappropriateelectricheatingjacket(usually200-500mmcircumferenceislargerthantheouterprotectivetube),anduseaspecialelectrichot-meltweldingmachinetoheatthesurroundingpresetheatingwire,usuallyfor20-40minutes(determinetheheataccordingtothematerial)Aroundthemeltingtime),thehot-meltsleeveisbondedtothemothertube,andthenthesecondstepofthesleevesleevefillingmethodisusedforinjection,andthespecialblockagecanbeusedforsealing. 4.Straight-buriedplasticsleevesteelprefabricatedinsulationpipejointmaterial,isitfeasibletouseglassfiberclothandglassfiberreinforcedplasticpaint?No.Becauseglas
Key words:
Latest developments