Njengokufakelwa kwe-thermal ebalulekileyo kunye nezixhobo zokuhambisa kubunjineli bemibhobho yanamhlanje, imibhobho yentsimbi egqunyiweyo isetyenziswa kakhulu kwi-petroleum, ikhemikhali, kunye namashishini okufudumala. Ukusebenza kwabo kuchaphazela ngokuthe ngqo ukhuseleko lwenkqubo kunye nokusebenza kakuhle kwamandla. Ukuqinisekisa umgangatho wemveliso kunye nokuthembeka kweprojekthi, ukuveliswa kunye nokwamkelwa kweemibhobho zensimbi ezifakwe kwi-insulated kufuneka zihambelane ngokungqongqo kwimigangatho yokuphunyezwa efanelekileyo.
Imigangatho engundoqo yokuphunyezwa kwimibhobho yentsimbi egqunyiweyo kwilizwe lam iquka i-GB/T 29047{1}}2012, "{2}}uxinzelelo oluphezulu{2}}lombhobho we-polyethylene wangaphandle wesheat, iplastiki enogwebu ye-polyurethane eyakhiwe ngokuthe ngqo{4}}umbhobho ogqunyiweyo ogqunyiweyo" kunye ne-CJ/T 114-i-polyethylene{1}2017} umbhobho we-sheath, iplastiki ye-polyurethane enogwebu eyenziwe yangaphambili efakwe ngaphambili umbhobho ogqunywe ngokuthe ngqo kunye nofakelo." Le migangatho ibonelela ngeenkcukacha ezicacileyo zemathiriyeli yombhobho wentsimbi, ulwakhiwo lwe-insulation layer, ukusebenza kwe-sheath yangaphandle, kunye neemfuno zobugcisa ngokubanzi. Ngokomzekelo, imibhobho yentsimbi ngokuqhelekileyo ayinamthungo okanye i-spiral welded, kwaye izinto eziphathekayo kufuneka zihambelane ne-GB / T 8163 okanye i-GB / T 9711 imigangatho yokuqinisekisa ukunyanzeliswa kwamandla kunye nokuxhathisa ukubola. Umaleko we-insulation ngokuqhelekileyo wenziwa nge-polyurethane foam eqinile, ene-conductivity ephantsi ye-thermal kunye namandla aphezulu oxinzelelo. Ubuninzi bayo kunye nobuninzi kufuneka buhlangabezane neemfuno zokuyila ukunciphisa ukulahleka kobushushu kunye nokukhusela umbhobho wensimbi. I-sheath yangaphandle ihlala yenziwe nge-high-density polyethylene (HDPE), enika ukuchasana kwemozulu okugqwesileyo kunye namandla omatshini. Imigangatho icacisa ngokucacileyo ukuchasana kwayo kwempembelelo kunye nokuchasana nokuqhekeka koxinzelelo lwendalo.
Ukongeza, imigangatho yezizwe ngezizwe efana ne-ISO 23940:2019, "IiNkqubo zeMibhobho eFakelweyo i-Prefabricated Insulated Piping," ibonelela ngereferensi yeemveliso ezithunyelwa ngaphandle, igxininisa ukuhambelana kwezinto kunye nobomi benkonzo{2} bexesha elide. Kwizicelo zobunjineli, imigangatho kufuneka ikhethwe ngokusekelwe kwiimeko ezithile. Umzekelo, iisistim zokufudumeza zasedolophini zinokubhekisa kwi-CJJ/T 81-2013, "Inkcazo yobuGcisa yeMibhobho yaManzi aTshisayo eNgqobileyo yokuFudumeza eDolophini," ngelixa ishishini lepetrochemical linokuthi libambelele kwi-API okanye imigangatho ye-ASTM engqongqo.
Ukuthotyelwa okungqongqo kwimigangatho yoshishino kwimibhobho yentsimbi egqunyiweyo ayiqinisekisi kuphela ukusebenza{0}}ixesha elide elizinzileyo lenkqubo yemibhobho, kodwa ikwaphucula ukusebenza kakuhle kwamandla kunye nokunciphisa iindleko zokuyigcina. Ngenkqubela phambili yezobuchwepheshe, imigangatho iya kuphuculwa ngakumbi, iqhube uphuhliso lwemibhobho yentsimbi egqunyiweyo ukuya kwimpumelelo enkulu kunye nokulungelelana kokusingqongileyo.
