I-ASTM A671 kanye ne-A672 zombili ziyizindinganiso zamapayipi ensimbi enziwe ngamapuleti ekhwalithi yesikhongozeli sokucindezela ngamasu okushisela ngogesi (EFW) ngokwengeza izinsimbi zokugcwalisa.
Nakuba zifana ngezici eziningi, njengezidingo zokushisela, ukwelashwa kokushisa, kanye nokubekezelelana kobukhulu, ziyahlukahluka ngobubanzi bazo bokusetshenziswa, ibanga, isigaba, ubukhulu, kanye nezinhlelo zokusebenza ezithile.
Ububanzi Bokusebenza
I-ASTM A671:Incazelo Ejwayelekile Yepayipi Lensimbi Elihlanganisiwe Likagesi Lokushisa Okusemoyeni Naphansi
I-ASTM A672: Incazelo Ejwayelekile Yepayipi Lensimbi Elihlanganisiwe Likagesi Lesevisi Yokucindezela Okuphezulu Emazingeni Okushisa Aphakathi
Ububanzi Bosayizi
I-ASTM A671: DN≥ 400 mm [16 in] kanye ne-WT ≥ 6 mm [1/4].
I-ASTM A672: DN≥400mm[16 in] kanye ne-WT≤75mm[3 in].
Ukuqhathaniswa Kwekilasi
Amapayipi ahlukaniswa ngokwezinhlobo zokwelashwa kokushisa akutholayo ngesikhathi senqubo yokukhiqiza nokuthi ngabe ahlolwa nge-ray noma cha futhi ahlolwe ingcindezi.
I-ASTM A671 inohlu olubanzi lwezigaba kune-ASTM A672, okubonisa indlela ye-A671 eyinkimbinkimbi kakhulu yokuhlukanisa izinto ngezigaba zezindlela zokuphuka kanye nokwehluleka okungenzeka ezindaweni eziphansi kwezinga lokushisa.
Lokhu kungenxa yokuthi indinganiso ye-A671 inikeza ukuhlukaniswa okuningiliziwe kwezakhiwo zokushisa okuphansi ezenzelwe ukuqinisekisa ukuthi ipayipi lizoqhubeka nokusebenza kahle ezimweni ezibandayo. Ngokuphambene nalokho, i-ASTM A672 igxile ekuzivumelaniseni nezingcindezi ezahlukene kanye nezimo zokushisa eziphakathi nendawo, okubandakanya ukubhekana nokuphatha izinhlobo ezahlukene zokucindezeleka.
Ukuqhathaniswa Kwebanga
Kuhlukaniswa ngokohlobo lwepuleti elisetshenziselwa ukukhiqiza amashubhu ensimbi.
Amazinga ahlukene amelela ukwakheka kwamakhemikhali ahlukene kanye nezakhiwo zemishini zezimo ezahlukene zokucindezela kanye nokushisa.
Amamaki ahlukene angathinta izindleko kanye nokusebenza kwephrojekthi.
Ukusebenzisa ipayipi lensimbi elisezingeni eliphezulu ngokuvamile kusho izindleko zezinto zokwakha eziphezulu, kodwa ukukhetha izinto ngendlela efanele kunganciphisa izindleko zokulungisa futhi kwandise impilo yenkonzo ngokuhamba kwesikhathi.
Izicelo Ezithile
Izicelo ze-ASTM A671 Steel Tubing
Izinsizakalo ze-Cryogenic: njengezinhlelo zokuphatha kanye nezokuthutha igesi yemvelo encibilikisiwe (i-LNG), zidinga amapayipi akwazi ukugcina izakhiwo ezinhle zemishini emazingeni okushisa aphansi kakhulu.
Izinhlelo zokuphakelwa kwegesi edolobheni: Kulezi zinhlelo, amapayipi kungadingeka asebenze emazingeni okushisa aphansi asebusika, ngakho-ke kudingeka amazinga athile amapayipi ensimbi ukuqinisekisa ukuphepha nokusebenza kahle.
Izindawo zokucubungula amakhemikhali: Ezinhlelweni zokucubungula amakhemikhali nokupholisa, uketshezi oluthile luphathwa emazingeni okushisa aphansi kakhulu, okudinga ukusetshenziswa kwepayipi le-ASTM A671 ukuvimbela ukuqhekeka kwepayipi ngenxa yokuqhekeka emazingeni okushisa aphansi.
Amapulatifomu asogwini kanye nezindawo zokumba uwoyela: Lezi zindawo zivame ukutholakala emanzini abandayo, futhi ukusetshenziswa kwepayipi le-A671 kuqinisekisa ukuthembeka nokuqina ezindaweni ezibandayo zasolwandle.
Izicelo ze-ASTM A672 Steel Tubing
Izitshalo zikagesi: Ikakhulukazi ezinhlelweni zamabhoyila kanye nezama-steam, lezi zinhlelo zidinga amapayipi amelana namazinga okushisa aphezulu kanye nokucindezela ukuze kudluliselwe umusi namanzi ashisayo ngokuphephile.
Izindawo zokucwenga: Enqubweni yokucwenga, kudingeka amapayipi ukuze kudluliselwe kahle uwoyela ongahluziwe kanye nemikhiqizo phakathi kweziteshi ezahlukene zokucubungula, futhi la mapayipi kumele akwazi ukumelana namazinga okushisa aphezulu kanye nokuhlaselwa ngamakhemikhali kwale nqubo.
Imigqa Yokudlulisa Umfutho Ophezulu: Imigqa yokudlulisa enomfutho ophezulu isetshenziselwa ukuthutha uketshezi noma amagesi anomfutho ophezulu njengegesi yemvelo kanye namafutha.
Izinhlelo Zokucindezela Zezimboni: Ekwenzeni nasekusetshenzisweni kwezinye izimboni, izinhlelo eziningi zokucindezela zidinga amapayipi anomfutho ophezulu athembekile ukuqinisekisa ukuphepha nokusebenza kahle kokukhiqiza.
Ngokuhlukanisa phakathi kwalezi zakhiwo kanye nezinhlelo zokusebenza, kuba sobala ukuthi nakuba amazinga epayipi e-ASTM A671 kanye ne-A672 ehlangana kwezinye izici zobuchwepheshe, asebenza ngezinjongo ezahlukene kuye ngezidingo ezithile zemvelo nezokusebenza.
tag:astm a671, astm a672, efw, class, grade.
Isikhathi sokuthunyelwe: Ephreli-23-2024