Isingeniso: Amapayipi ensimbi angenamthungo ayingxenye ebalulekile embonini yokubhayela, ehlinzeka ngezisombululo zokushisa eziphakeme kanye nengcindezi yokusetshenziswa okuhlukahlukene. Lawa mapayipi ahambisana namazinga aqinile abekwe yi-ASTM A335, enamabanga anjengokuthiI-P5, i-P9, ne-P11, okuqinisekisa ukusebenza okuphakeme, ukuqina, nokuthembeka ekusebenzeni kukabhoyela.

Amazinga we-ASTM A335: I-ASTM A335 iyisicaciso esimboza ipayipi lensimbi engenamthungo le-ferritic alloy-steel yesevisi yezinga lokushisa eliphezulu. Yamukelwa kabanzi futhi yamukelwa embonini yamabhayela ngenxa yezidingo zayo eziqinile zezakhiwo zemishini, ukwakheka kwamakhemikhali, nezinqubo zokuhlola. Lezi zindinganiso zibalulekile ekuqinisekiseni ikhwalithi nokuphepha kwamapayipi ensimbi ye-alloy asetshenziswa kuyohigh-pressure kanye ne-high-temperature boilerizinhlelo.

Izinto zokwakha kanye namaBanga: Amapayipi ensimbi ye-alloy atholakala kumabanga ahlukahlukene, okuhlanganisa i-P5, i-P9, ne-P11, ngayinye yakhelwe ukuhlangabezana nezidingo ezithile zokushisa nokucindezela. I-P5 inikeza ukumelana okuhle kakhulu nokugqwala, okuyenza ifaneleke ukusetshenziswa okusesilinganisweni kuya kwezinga lokushisa eliphezulu. I-P9 yaziwa ngamandla ayo akhethekile kanye nokuqina, okuyenza ifaneleke ezindaweni ezidinga ibhayela. I-P11 iziqhayisa ngamandla aqinile okuqinile kanye nokumelana nezinga lokushisa, okuyenza ifanelekele izinhlelo zokushisa eziphakeme kakhulu.

Izinzuzo: Amapayipi ensimbi angenamthungo anengxubevange anezinzuzo ezimbalwa eziwenza abe yinketho ekhethwayo embonini yokubhayela. Okokuqala nokubaluleke kakhulu, ukwakhiwa kwabo okungenamthungo kuqeda ingozi yokuvuza, kuqinisekiswe ukusebenza kwe-boiler ephephile futhi ephumelelayo. Izakhi ze-alloying kulawa mapayipi zithuthukisa ukumelana kwazo ne-oxidation kanye nokukala, zigcina ubuqotho bazo besakhiwo ngisho nasezimweni ezimbi kakhulu. Ikhono lamapayipi okumelana nomfutho ophezulu kanye nokuguquguquka kwezinga lokushisa ngaphandle kokuguquguquka noma ukwehluleka kunomthelela empilweni yawo ende yesevisi kanye nezidingo zokunakekelwa okuphansi.

Izicelo: Amapayipi ensimbi angenamthungo, umhlanganoAmazinga we-ASTM A335, thola ukusetshenziswa okubanzi kuma-boiler ahlukahlukene. Ngokuvamile zisetshenziswa ezimbonini zokuphehla ugesi, lapho zisebenza njengezingxenye ezibalulekile zama-superheaters, ama-reheaters, kanye nezindonga zamanzi. Imboni kawoyela negesi iphinde ithembele kulawa mapayipi ukuze uthole amapayipi esitimu namayunithi okucubungula izinga lokushisa eliphezulu. Ukwengeza, asetshenziswa ezindaweni zokucwenga nasezitshalweni ze-petrochemical izicelo ezidinga izinga lokushisa eliphakeme nokumelana nokucindezela.

Isiphetho: Sengiphetha, amapayipi ensimbi angenamthungo ahambisana nawoAmazinga we-ASTM A335futhi afaka amabanga P5, P9, kanye ne-P11 ahlinzeka ngezixazululo ezibalulekile embonini yokubhayela. Ngezindawo zabo ezingavamile, lawa mapayipi aqinisekisa ukusebenza kwe-boiler ephephile futhi enokwethenjelwa, okwenza kube yisinqumo esikhethwayo sokushisa okuphezulu kanye nezicelo zokucindezela okuphezulu. Ukusetshenziswa kwazo kabanzi emikhakheni eyahlukene yezimboni kufakazela ukuthembeka kwazo, ukuqina, kanye nekhono lokumelana nezimo ezimbi kakhulu, okuzenza zibe yingxenye ebalulekile yamasistimu kabhayela wesimanje.