Ukubaluleka kokuthuthuka kwe-helded-arc ye-arc i-weldged-arc

Njengamanje, amapayipi asetshenziselwa ikakhulukazi ukuthutha amafutha amade kanye negesi. Amapayipi ensimbi ePipeline asetshenziswa kumapayipi amabanga amade ikakhulukazi afaka phakathiKuvunguza amapayipi ensimbi efakwe emzimbenikanye namapayipi e-arc eqonde e-arc eqondile angenamiphakathi e-arc. Ngenxa yokuthi ipayipi elifakwe emgodini we-arlc elisezingeni eliphansi lenziwe ngensimbi ye-strip kanti ukushuba kodonga kwalo kukhawulelwe, ukuthuthukiswa kwebanga lensimbi kukhawulelwe ukwelashwa kokushisa kwezinto ezibonakalayo. Ngaphezu kwalokho, kukhona amaphutha athile angenakunqotshwa kwepayipi elifakwe emanzini angenazithelo eliphakathi nendawo, enjenge-weld ende, ingcindezi enkulu esele nokwethenjwa okungekuhle kweWeld. Ngezidingo ezikhulayo zamapayipi ensimbi yokuhambisa igesi kanye negesi, azisenazisetshenziswa ezindaweni ezinabantu abaningi kanye nezindawo ezinezidingo eziphezulu zokwethenjwa, futhiAmapayipi ama-weldeter amakhulukancane kancane esikhundleni samapayipi anezinwele ezinomoya.

Muva nje, iChina isheshise ukuthuthukiswa kwamafutha negesi e-East China Sea. Ngokuthuthukiswa kokuxhashazwa kawoyela ekujuleni kolwandle, ipayipi elilele olwandle lithintwa yimikhosi ehlanganisiwe yengcindezi, amandla okubangela kanye namandla okugoba asabonakala, okuyisixhumanisi esibuthakathaka se-Weld ipayipi. Ukuze uthuthukise umthamo wokuhamba ngepayipi futhi uqinisekise ipayipi elingaphansi komhlaba ukuze lithuthukise odongeni oluwugqinsi, ipayipi elingaphansi komhlaba lamukela kakhulu ipayipi elinamanzi aqondile. Ngakho-ke, uma kuqhathaniswa nepayipi eline-welded efiselekile, ipayipi elinamasheya eliqondile linokunemba okuphezulu okuphezulu kanye nokulungiswa okulula, ngakho-ke kusuka kulesi sici, ipayipi eliqondile le-welded nakho kungukukhetha kokuqala.

Imishini, ukwakhiwa, imboni yamakhemikhali nezinye izimboni zidinga amapayipi anama-welded aqonde. Njengamanje, umgodi wangaphakathi wesihlalo se-valve wahlelwa ngemuva kokucela embonini yemishini, edla okusebenzayo, okudla isikhathi nokudla kwezinto ezibonakalayo. Uma kusetshenziswa ipayipi elinodonga elinamakhanda angenantambo, kuzoba semnotho kakhulu. Ngaphezu kwalokho, ngenxa yezidingo zezakhiwo zemishini ze-anti-flatting, kusetshenziselwa amapayipi aqondile ama-weldid ngokwakha amapayipi; Ipayipi elivuthiwe eliqondile nalo kulindeleke ukuthi lisetshenziselwe amapayipi amakhemikhali.