Umbhobho wamanzi wentsimbi we-AWWA C213sisigqubuthelo se-FBE esisetyenziswa kwiindawo zangaphakathi nangaphandle zepayipi yentsimbi ukuze isetyenziswe kwiinkqubo zepayipi zamanzi zentsimbi ezingaphantsi komhlaba okanye ezingaphantsi kwamanzi.
Olu gqubuthelo lubonelela ngokhuseleko ekungcoleni kwaye luqinisekisa ukusebenza okuthembekileyo kwenkqubo yemibhobho ixesha elide kwiindawo ezingaphantsi komhlaba okanye ezingaphantsi kwamanzi.
Ububanzi obungaphandle bombhobho ≥ 660mm [24in]. I-epoxy resin lining enokufikelela kumbhobho ukuze ihlolwe kwaye igcinwe.
Ububanzi bepayipi yentsimbi <660mm [24in] bunokufaneleka, ukuba kukho indlela efanelekileyo yokujonga ukuthembeka kwengubo yangaphakathi.
I-Fusion Bonded Epoxy (FBE)yi-epoxy resin ye-thermosetting epoxy enecandelo elinye, ethi xa isebenza bubushushu, idale impendulo yeekhemikhali kumphezulu wombhobho wentsimbi ngelixa igcina iimpawu zayo.
Umgubo we-epoxy kufuneka ube nezinto ezidityanisiweyo ze-fusion ezine-component enye eziquka i-epoxy resin, i-curing agent, i-catalyst, i-filler, i-colorant, i-flow control agent, kunye ne-UV inhibitor.
Izixhobo kufuneka zihambelane neemfuno zeUMthetho waManzi okuSela aKhuselekileyo.
Xa kufuneka kuthotyelwe i-NSF, izixhobo ezidibana namanzi okusela ziya kuqinisekiswa ngokwe-NSF/ANSI/CAN Standard 61.
Ngokubanzi, ubushushu obuphezulu bokusetyenziswa kweengubo bumalunga65°C (150°F)Ngaphezu koko, ubomi benkonzo yokwaleka buyancipha ngokugcina amaqondo obushushu aphezulu ixesha elide.
Xa isetyenziswa kwizinto ezisandula ukusetyenziswa ngokutshiza nge-electrostatic, ngokutshiza ngebhedi okanye ngomoya, ize emva koko inyangwe, umgubo we-epoxy uvelisa uqweqwe olufanayo olukhuselayo.
Imisebenzi ethile yile ilandelayo:
Ukuhlolwa kweMibhobho kunye noNyango lwangaphambi konyango
Umphezulu mawungabi naziphene ezichaphazela imveliso yokugqibela, ezinje ngee-burrs, ii-gouges, kunye nee-weld spatters, ezinokususwa ngokusila.
kwaye imiphezulu mayingabi nadaka, ipeyinti yomatshini, iwax, itar yamalahle, iasphalt, ioyile, igrisi, iikloridi, kunye nayo nayiphi na enye into yangaphandle okanye izinto ezingcolisayo ezinokutsha xa kushushu i-epoxy edibeneyo. Susa amabala abonakalayo eoyile kunye negrisi ngokusula ngesinyibilikisi esingashiyi ntsalela.
Ukulungiswa komphezulu
Sebenzisa isanti eyomileyo ukucoca umhlwa womphezulu kwipayipi yentsimbi.
Iimfuneko zeNdawo yokuQhuma: Xa ubushushu bombhobho wentsimbi buyi-3°C (5℉) ngaphezulu kobushushu be-dew point.
Ukucoceka komphezulu: Umphezulu wombhobho wentsimbi osusiweyo kufuneka uhambelane ne-SSPC-SP10/NACE No. 2.
Uburhabaxa bomphezulu: Ubunzulu beenkozo ze-anchor kuluhlu lwe-51-102 μm (2.0-4.0 mil ) olulinganiswe ngokwe-ASTM D4417. Oku kungalinganiswa nge-topper yepateni ye-anchor okanye i-meter yepateni ye-anchor.
Uburhabaxa bomphezulu obunzulu kakhulu okanye obunganzulu kakhulu buya kuchaphazela ukusebenza kwengubo yokugqibela ye-FBE.
Qaphela: Nceda uqaphele ixesha eliphakathi kokugqitywa kokususwa kweekalika kunye nenkqubo yokugquma ukuze kuthintelwe ukugqwala kwe-flash.
Ukucoca Umoya
Umoya ocinezelweyo ongenangcolisi kufuneka usetyenziswe ukuvuthela uthuli, uthuli, okanye ezinye izinto zangaphandle ezivela kwisiseko esilungisiweyo sombhobho ngendlela engachaphazeli umphezulu ocociweyo, omnye umbhobho ocociweyo, okanye umbhobho oza kufakwa okanye ufakwe umphezulu.
Ukufudumeza imibhobho
Fudumeza umbhobho wentsimbi usebenzisa umthombo wobushushu ongamele ungcolise umphezulu wombhobho, kodwa ungadluli kwi-274°C (525°F).
Amaqondo obushushu aphezulu anokutshintsha iimpawu zomzimba kunye neempawu zokuqina kwentsimbi.
Ubushushu bomphezulu wombhobho wentsimbi bunokulinganiswa kusetyenziswa ipeni ye-thermometer okanye i-thermometer ye-optical elinganisiweyo.
Ukuba kuvela umbala oluhlaza okwesibhakabhaka, umbhobho kufuneka upholiswe ukuya kubushushu obuqhelekileyo uze uphinde uqhunyiswe.
Inkqubo yokugquma
Umgubo we-FBE usetyenziswa ngokulinganayo kumphezulu wombhobho wentsimbi oshushu ngokunyibilikisa ibhedi, ukutshiza nge-electrostatic, okanye ukutshiza ngomoya.
Imiqolo, imiphezulu etyetyisiweyo, okanye ingcambu akufuneki igqunywe nge-FBE.
Xa kusetyenziswa izihlanganisi zerabha okanye izihlanganisi zoomatshini, i-epoxy kufuneka ifikelele kwiziphelo zombhobho ngaphandle kokuba kuchazwe ngenye indlela ngumthengi.
Ukupholisa
Ukupholisa kungenziwa ngomoya okanye ngamanzi.
I-PQT: Thenga i-AWWA C213 Water Transmission Steel Pipe ngobuninzi obuncinci bovavanyo ngaphambi kokuba uthenge ubungakanani obukhulu. Ukuqinisekiswa kwangaphambili okanye uvavanyo lwenziwa ukuqinisekisa ukuba imveliso okanye inkqubo ihlangabezana nemigangatho ethile yomgangatho kunye nokusebenza.
Oku kuquka uvavanyo lwelabhoratri, uvavanyo lokusebenza, kunye nezinye iinkqubo.
Imbonakalo
I-epoxy kufuneka ibe bushelelezi ngokubanzi.
I-epoxy mayingabi namadyungudyungu, imifantu, amaqamza, ukuqhekeka, okanye ezinye iziphene ezibonakalayo.
Iziphene zobuhle, ezinje ngokuwa, ukuqhekeka, ukukrwela, ukutshiza ngaphezulu, kunye/okanye ixolo eli-orenji, azifanele zithathwe njengezizathu zokwaliwa okanye ukulungiswa.
Ukuhlolwa kombane ukuze kujongwe ukuqhubeka (uvavanyo lweholide olusebenzisa umbane ophantsi)
Ukuqhubeka kokufaka i-coating kufuneka kuhlolwe ngokuhambelana ne-NACE SPO490.
Kwimiphethoenobukhulu obuyi-20 mils (508 um) okanye ngaphantsi, kufuneka kusetyenziswe isixhobo sokubona iholide esine-voltage ephantsi esisetwe kwi-75 V ngokuhambelana ne-NACE SPO188.
Ukuba inani leeholide lidlula inani elingaphantsi kwengubo kuya kufuneka lisuswe kwaye liphinde lenziwe.
Ububanzi obungaphandle (OD) <14in (360 mm), iholide e-1/imitha (3 ft).
Ububanzi obungaphandle (OD) ≥ 14in (360 mm), iholide e-1/25 ft² (2.3 mm²).
Thatha iiholide ezihloliweyo, uzilungise, uze uzivavanye kwakhona.
Ukunamathela
Ukunamathela kwe-epoxy ecoliweyo kumphezulu wombhobho kunokufezekiswa ngokutyhala i-blade ebukhali kwi-epoxy kumphezulu wombhobho nokusebenzisa intshukumo yokulima ukuzama ukususa i-epoxy kumphezulu wombhobho.
I-epoxy kufuneka inamathele ngokupheleleyo kumbhobho okwipayipi ukuze imelane ngokuqinileyo nentshukumo yokulima kwaye ingabi nazinto eziqhekekayo kwaye ihlangabezaneumlinganiselo wokunamathela we-1-3.
Ubukhulu
Ubukhulu befilimu yokugquma ecociweyo akufuneki bube ngaphantsi kwe-305um (12mil), kuquka nemithungo yokugquma.
Kwinguqulelo endala ye-AWWA C213, bekukho umda we-406 um (16 mils) ubukhulu bokugquma obuphezulu, obususiweyo kwinguqulelo yamva nje ngenxa yobunzima bokufezekisa le mfuneko ngexesha lenkqubo yokuvelisa.
Uvavanyo olongezelelweyo
Uvavanyo olongezelelweyo lunokucaciswa ukuze kuqinisekiswe ukusebenza kwe-epoxy.
1. Ukuvuleka kweendawo ezinqamlezileyo.
2. Iimbobo zojongano.
3. Uhlalutyo lobushushu (i-DSC).
4. Uxinzelelo oluhlala luhleli (ukugoba).
5. Ukumanzisa emanzini.
6. Impembelelo.
7. Uvavanyo lokuqhekeka kweCathodic.
Mayiphawulwe ngokucacileyo ngegama lomenzi, uhlobo lwezinto, inombolo yebhetshi okanye yelothi, umhla wokwenziwa, kunye neemeko zokugcina.
Eyona nto isetyenziswa kakhulu kwimibhobho yokuhambisa amanzi
Iingubo zangaphandle zihlala zisetyenziselwa ukukhusela imibhobho ekungcoleni kwendalo, ngelixa iingubo zangaphakathi zisetyenziselwa ukuthintela ungcoliseko lwamanzi, ukunciphisa ukumelana nokungqubana, kunye nokwandisa ubomi bemibhobho. Ezi ngubo zinceda ukuqinisekisa ukuthembeka nokuqina kweenkqubo zemibhobho, ukuthobela imigangatho yococeko, kunye nokunciphisa isidingo sokugcinwa.
I-ANSI/AWWA C203: Iingubo zokukhusela kunye neengubo zombhobho wamanzi wentsimbi kunye netha yamalahle.
I-ANSI/AWWA C209: Iingubo zeTape zeMibhobho yamanzi yentsimbi kunye neziXhobo.
I-ANSI/AWWA C210: Iingubo zeLiquid-Epoxy kunye neeLinings zePipe kunye neeFittings zamanzi zeNtsimbi.
I-Botop Steel yi-Welded esemgangathweni ophezuluUmbhobho wentsimbi yekhabhoniumenzi kunye nomthengisi ovela eTshayina, okwangumthengisi weepayipi zentsimbi ezingenamthungo.
I-Botop Steel izimisele kakhulu kumgangatho kwaye isebenzisa ulawulo oluqinileyo kunye novavanyo ukuzeukuqinisekisa ukuthembeka kwemveliso. Iqela layo elinamava libonelela ngezisombululo ezenzelwe wena kunye nenkxaso yeengcali, kugxilwe ekwanelisekeni kwabathengi. Silangazelela ukusebenza nawe.
