Iwaranti yomkhiqizi wamashubhu obhayela wangempela
Ipayipi lensimbi engenamthungo enomfutho ophezulu kanye nepayipi likabhoyela elinomfutho omkhulu kuwuhlobo lwepayipi likabhoyela, eliyingxenye yepayipi lensimbi engenamthungo. Indlela yokukhiqiza iyafana neyepayipi elingenamthungo, kodwa kunezidingo eziqinile zebanga lensimbi elisetshenziswa ekwenzeni ipayipi lensimbi. Amashubhu e-boiler anengcindezi ephezulu avame ukusetshenziswa ngaphansi kokushisa okuphezulu nezimo zokucindezela okukhulu. Amashubhu kabhayela anomfutho ophakeme asetshenziswa ngokuyinhloko ukwenza amashubhu okushisa aphezulu, amashubhu okushisa kabusha, amapayipi omoya, amashubhu amakhulu esitimu, njll. amabhoyili anengcindezi ephezulu kanye nawomfutho ophezulu wegazi.
Amashubhu kabhayela anengcindezi ephansi naphakathi engu-gb3087-2008 kanye namashubhu kabhayela we-high pressure GB5310-2008 ayinsimbi yekhwalithi ephezulu ye-carbon structural steel hot-rolled and cold drawn (rolling) engenamthungo (egoqiwe) ensimbi eyenza amashubhu esitimu esishisa kakhulu, abilayo amashubhu amanzi anomfutho ophansi nophezulu. ama-boilers anezakhiwo ezihlukahlukene kanye namashubhu e-steam ashisa kakhulu, amashubhu amakhulu entuthu, amashubhu amancane entuthu kanye namashubhu ezitini zezitini zama-boilers wesitimela. Ipayipi lensimbi elingenamthungo lesakhiwo (GB / t8162-2008) liyipayipi lensimbi elingenamthungo lesakhiwo esijwayelekile kanye nesakhiwo somshini.
Ukucaciswa kanye nekhwalithi yokubukeka:I-GB5310-2008 amashubhu ensimbi angenamthungo wamabhoyela anengcindezi ephezulu, ububanzi bangaphandle bamashubhu ashisayo asongwe bungu-22 ~ 530mm, kanti ukujiya kodonga kungu-20 ~ 70mm. Ipayipi elibandayo elidonswayo (eligoqekayo elibandayo) linobubanzi obungaphandle obuyi-10 ~ 108mm kanye nogqinsi oluyi-2.0 ~ 13.0mm.
Ipayipi lensimbi elingenamthungo elimise okukhethekile yigama elijwayelekile lepayipi lensimbi elingenamthungo elinezinye izimo zesigaba ngaphandle kwepayipi eliyindilinga. Ngokwesimo esihlukile nosayizi wesigaba sepayipi lensimbi, lingahlukaniswa libe ukujiya okulingana odongeni ipayipi lensimbi elingenamthungo (ikhodi D), ukujiya okungalingani kodonga lwepayipi lensimbi emise okukhethekile (ikhodi BD) kanye nobubanzi obuguquguqukayo obumise okukhethekile. ipayipi lensimbi engenamthungo (ikhodi BJ). Ipayipi lensimbi elimise okukhethekile elingenamthungo lisetshenziswa kabanzi ezingxenyeni ezahlukahlukene zesakhiwo, amathuluzi nezingxenye zemishini. Uma kuqhathaniswa nepayipi eliyindilinga, ipayipi elimise okukhethekile ngokuvamile linesikhathi esikhudlwana se-inertia kanye ne-modulus yesigaba, futhi linokumelana nokugoba okukhulu nokuqina, okunganciphisa kakhulu isisindo sesakhiwo futhi yonge insimbi.
(1) Gb3087-2008 amashubhu ensimbi angenamthungo amaboiler aphansi naphakathi. Indlela yokuhlola ukwakheka kwamakhemikhali kufanele ihambisane nezingxenye ezifanele ze-gb222-84 kanye nezindlela ze-gb223 zokuhlaziya amakhemikhali ensimbi, insimbi ne-alloy.
(2) GB5310-2008 amashubhu ensimbi angenamthungo amaboilers anengcindezi ephezulu. Indlela yokuhlola ukwakheka kwamakhemikhali kufanele ihambisane nezingxenye ezifanele ku-gb222-84, izindlela zokuhlaziya amakhemikhali ensimbi, insimbi ne-alloy kanye nezindlela ze-gb223 zokuhlaziya amakhemikhali ensimbi, insimbi ne-alloy.
(3) Ukwakheka kwamakhemikhali kwamapayipi ensimbi kabhayela angenisiwe kufanele ahlolwe ngokuvumelana nezindinganiso ezifanele ezishiwo kunkontileka (1) Ikhwalithi ephezulu yensimbi ye-carbon structural steel amabanga ahlanganisa 20g, 20mng kanye no-25mng.
(2) Ingxubevange amamaki ensimbi yesakhiwo: 15mog, 20mog, 12crmog, 15CrMoG, 12CR2MOG, 12crmovg, 12Cr3MoVSiTiB, njll.
(3) Ngaphezu kokuqinisekisa ukwakheka kwamakhemikhali nezici zemishini, 1Cr18Ni9 kanye ne-1cr18ni11nb amashubhu kabhayela avame ukusetshenziswa ensimbi ekwazi ukumelana nokushisa azoba ngaphansi kokuhlolwa kwe-hydrostatic, ukuvutha kanye nokuhlolwa kokucaba ngakunye ngakunye. Amapayipi ensimbi azolethwa esesimweni esiphathwa ngokushisa.
Ngaphezu kwalokho, kunezidingo ezithile ze-microstructure, usayizi wokusanhlamvu kanye nesendlalelo se-decarburization yepayipi yensimbi eqediwe.
