Ipayipi le-API vs Ipayipi le-3PE

Emaphrojekthi amakhulu obunjiniyela afana nowoyela, igesi yemvelo, kanye nokuhlinzekwa kwamanzi kamasipala, amapayipi asebenza njengesisekelo sohlelo lokuhamba, futhi ukukhethwa kwawo kunquma ngqo ukuphepha kwephrojekthi, ukonga, kanye nokuqina kwayo. Ipayipi le-API kanye nepayipi le-3PE, imikhiqizo emibili yamapayipi esetshenziswa kabanzi, ivame ukubekwa phambili amaqembu obunjiniyela. Kodwa-ke, ahluka kakhulu ngamazinga okuklama, izici zokusebenza, kanye nezimo ezifanele. Ukuqonda kahle izici zawo kubalulekile ekuthuthukiseni ikhwalithi yephrojekthi.

Incazelo kanye Nezimo Zokusebenza Eziyinhloko

Ipayipi Lensimbi ye-API 5L-Ipayipi Lensimbi

Ipayipi le-API, elifingqiwe ngokuthi "i-American Petroleum Institute Standard Steel Pipe," lenziwa ngokuhambisana nezindinganiso zomhlaba wonke ezifana nokuthiIpayipi lensimbi le-API 5LYakhiwe ngensimbi enamandla amakhulu futhi yakhiwe ngezinqubo zokugoqa noma zokushisela ezingenamthungo. Amandla ayo ayinhloko asemandleni ayo okucindezela okuphezulu nokuthambekela, okwenza isetshenziswe kabanzi ekusetshenzisweni kokucindezela okuphezulu njengemipayipi kawoyela negesi ekude kanye ne-shale gas wellhead manifolds. Ukuqina kwayo kwesakhiwo emazingeni okushisa aphezulu asukela ku--40°C kuya ku-120°C kwenza ibe yingxenye ebalulekile yokuthuthwa kwamandla.

Ipayipi Lensimbi Eyi-3PE -Iqembu Lasebukhosini

Ipayipi le-3PE limelela "ipayipi lensimbi le-polyethylene elilwa nokugqwala elinezingqimba ezintathu." Lisebenzisa ipayipi lensimbi elivamile njengesisekelo, elimbozwe ngesakhiwo esilwa nokugqwala esinezingqimba ezintathu esiqukethe i-epoxy powder coating (FBE), inhlaka, kanye ne-polyethylene. Umklamo walo oyinhloko ugxile ekuvikelweni kokugqwala, okwandisa kakhulu impilo yesevisi yepayipi ngokuhlukanisa amagciwane enhlabathi kanye nama-electrolyte esisekelweni sepayipi lensimbi. Ezindaweni ezigqwala kakhulu njengokuhlinzekwa kwamanzi kamasipala, ukwelashwa kwendle, kanye nokuthuthwa koketshezi ngamakhemikhali, ipayipi le-3PE lingafinyelela impilo yesevisi engaphezu kweminyaka engama-50, okwenza libe yisisombululo esiqinisekisiwe sokulwa nokugqwala sokwakhiwa kwepayipi elingaphansi komhlaba.

Ukuqhathaniswa Kokusebenza Okuyinhloko

Ngokombono wokusebenza okuyinhloko, amapayipi amabili ahluke ngokusobala endaweni yawo. Ngokuphathelene nezakhiwo zemishini, ipayipi le-API ngokuvamile linamandla okukhiqiza angaphezu kwama-355 MPa, kanye namazinga athile anamandla aphezulu (njenge-I-API 5L X80) ifinyelela ku-555 MPa, ekwazi ukumelana nezingcindezi zokusebenza ezidlula i-10 MPa. Ngakolunye uhlangothi, ipayipi le-3PE lithembele kakhulu epayipini lensimbi eliyisisekelo ukuze liqine, futhi ungqimba olulwa nokugqwala ngokwalo alunawo amandla okuthwala ingcindezi, okwenza lufaneleke kakhulu ekuthuthweni kwengcindezi ephakathi nendawo nephansi (ngokuvamile ≤4 MPa).

Amapayipi e-3PE anenzuzo enkulu ekumelaneni nokugqwala. Isakhiwo sawo esinezingqimba ezintathu sakha isithiyo esikabili "sokuhlukaniswa ngokomzimba + ukuvikelwa kwamakhemikhali." Ukuhlolwa kwesifutho sikasawoti kukhombisa ukuthi izinga lawo lokugqwala liyi-1/50 kuphela kunepayipi lensimbi elivamile elingenalutho.Amapayipi e-APIzingavikelwa ekugqwaleni ngokusebenzisa i-galvanizing kanye nokupenda, ukusebenza kwazo ezindaweni ezimbozwe noma ezingaphansi kwamanzi kusengaphansi kokwamapayipi e-3PE, okudinga izinhlelo ezengeziwe zokuvikela i-cathodic, okwandisa izindleko zephrojekthi.

Amasu Okukhetha kanye Nezindlela Zokusebenza Kwemboni

Ukukhethwa kwephrojekthi kufanele kuhambisane nomgomo "wokulingana kwezimo": Uma indawo yokudlulisa inguwoyela noma igesi enomfutho ophezulu, noma indawo yokusebenza ihlangabezana nokushintshashintsha okukhulu kokushisa, amapayipi e-API ayathandwa, kanti amazinga ensimbi afana ne-X65 ne-X80 ahambisana nesilinganiso sokucindezela. Ekuthuthweni kwamanzi angcolile agqitshwe noma amakhemikhali, amapayipi e-3PE ayindlela engabizi kakhulu, futhi ubukhulu besendlalelo sokulwa nokugqwala kufanele bulungiswe ngokuya ngezinga lokugqwala kwenhlabathi.

Umkhuba wamanje embonini ubheke "ekuhlanganisweni kokusebenza." Ezinye izinkampani zihlanganisa izinto eziyisisekelo ezinamandla aphezulu zepayipi le-API nesakhiwo sokulwa nokugqwala esinezingqimba ezintathu sepayipi le-3PE ukuze kuthuthukiswe "ipayipi elihlanganisiwe elilwa nokugqwala elinamandla aphezulu." Lawa mapayipi ahlangabezana nezidingo zokudluliselwa komfutho ophezulu kanye nokuvikelwa kokugqwala kwesikhathi eside. Lawa mapayipi asevele esetshenziswa kabanzi ekukhiqizweni kukawoyela negesi olwandle olujulile kanye namaphrojekthi okuphambukisa amanzi phakathi kwezitsha. Le ndlela entsha inikeza ikhambi elingcono lobunjiniyela bamapayipi.