Imininingwane Engokwenyama
Okokuqala futhi okubaluleke kakhulu, i-flange kufanele ilingane nepayipi noma imishini eklanyelwe yona. Ukucaciswa ngokomzimba kwama-flange amapayipi kufaka phakathi ubukhulu kanye nokubunjwa kokuklama.
Ubukhulu be-Flange
Ubukhulu bomzimba kufanele bucaciswe ukuze ama-flange asayizi alungile.
Ububanzi bangaphandle (OD) yibanga eliphakathi kwamaphethelo amabili aphikisanayo obuso be-flange.
Ubukhulu busho ukujiya kwerimu yangaphandle enamathiselwe, futhi akubandakanyi ingxenye ye-flange ebambe ipayipi.
Ububanzi bendingilizi ye-bolt ubude obusuka phakathi nendawo yembobo yebhawodi ukuya phakathi nendawo yembobo ephikisanayo.
Usayizi wepayipi usayizi wepayipi ohambisanayo wepayipi, ngokuvamile owenziwa ngokwamazinga amukelwayo. Ivamise ukucaciswa izinombolo ezimbili ezingezona u-dimensional, usayizi wepayipi lokuzisholo (NPS) kanye neshejuli (SCH).
Usayizi we-bore wokuzisholo uwububanzi bangaphakathi besixhumi se-flange. Lapho ukhiqiza futhi uyala noma yiluphi uhlobo lwesixhumi sepayipi, kubalulekile ukufanisa usayizi we-bore wesiqephu nobukhulu bobhobho bepayipi lokuhlangana.
Ubuso be-Flange
Ubuso be-Flange bungakhiqizwa inani elikhulu lezidingo zokuklama ezenziwe ngokwezifiso. Ezinye izibonelo zihlanganisa:
Isicaba
Ubuso obuphakanyisiwe (RF)
Uhlobo lwendandatho ehlangene (RTJ)
I-O-ring groove
Izinhlobo zePipe Flanges
Amapayipi amapayipi angahlukaniswa abe yizinhlobo eziyisishiyagalombili ngokusekelwe ekuklanyeni. Lezi zinhlobo ziyimpumputhe, i-lap joint, i-orifice, i-reduction, i-slip-on, i-socket-weld, i-threaded, ne-weld neck.
Ama-blind flange angamapuleti ayindilinga angenawo amandla okubamba phakathi nendawo asetshenziselwa ukuvala iziphetho zamapayipi, ama-valve, noma amathuluzi. Basiza ekuvumeleni ukufinyelela kalula kulayini uma usuvaliwe. Zingabuye zisetshenziselwe ukuhlola ingcindezi yokugeleza. Ama-blind flange enziwe ukuze alingane namapayipi ajwayelekile kuwo wonke amasayizi ezilinganisweni zokucindezela okuphezulu kunezinye izinhlobo ze-flange.
Ama-flange ahlangene emathangeni asetshenziswa kumapayipi afakwe amapayipi agqitshwe noma anezinqe ezihlangene zamathanga. Angakwazi ukuzungezisa ipayipi ukuze avumele ukuqondanisa kalula kanye nokuhlanganisa izimbobo zamabholithi ngisho nangemva kokuba ukushisela sekuqediwe. Ngenxa yale nzuzo, ama-lap joint flange asetshenziswa ezinhlelweni ezidinga ukuhlakazeka njalo kwama-flange namapayipi. Afana nama-slip-on flange, kodwa ane-radius egobile endaweni ebhorekile nasebusweni ukuze amukele isiphetho se-lap joint stub. Izilinganiso zokucindezela zama-lap joint flange ziphansi, kodwa ziphakeme kunama-slip-on flange.
Ama-slip-on flange aklanyelwe ukushelela ekugcineni kwamapayipi bese eshiselwa endaweni yawo. Banikeza ukufakwa okulula nokungabizi kakhulu futhi balungele izinhlelo zokusebenza zengcindezi ephansi.
Ama-socket weld flange alungele amapayipi amancane, anengcindezi ephezulu. Ukwakhiwa kwazo kufana nokushibilika kwe-flange, kodwa ukwakheka kwephaketheni langaphakathi kuvumela ukubhoboza okubushelelezi nokugeleza okungcono koketshezi. Uma eshiselwe ngaphakathi, lawa ma-flanges nawo abe namandla okukhathala angama-50% amakhulu kunama-flange ashiselwe kabili ashiselwe.
Ama-flange anezintambo yizinhlobo ezikhethekile ze-pipe flange ezingaxhunywa kwipayipi ngaphandle kokushisela. Acutshungulwa kubhore ukuze afane nentambo yangaphandle epayipini futhi ayacishwa ukuze enze uphawu phakathi kwe-flange nepayipi. Ama-welds ama-seal angasetshenziswa kanye nokuxhuma okunentambo ukuze kuqiniswe okwengeziwe nokuvala. Zisetshenziselwa kangcono amapayipi amancane nezingcindezi eziphansi, futhi kufanele zigwenywe ezinhlelweni ezinemithwalo emikhulu kanye nama-torque aphezulu.
Ama-flange entamo yokushisela anehabhu elide elicijile futhi asetshenziselwa izicelo zokucindezela okuphezulu. Ihabhu le-tapered lidlulisela ingcindezi isuka ku-flange iye kwipayipi ngokwayo futhi inikeza ukuqiniswa kwamandla okuphikisana ne-dishing.
Isikhathi sokuthumela: Oct-21-2021