I. Isishwankathelo seMveliso
GB/T9948-2013Umbhobho wentsimbi engenamthungo ngumbhobho wentsimbi engenamthungo osemgangathweni ophezulu osetyenziselwa ngokukodwa inkqubo yokuqhekeka kwepetroleum, kwaye usetyenziswa kakhulu kwizixhobo ezibalulekileyo ezifana neetyhubhu zesithando somlilo, izitshintshi zobushushu kunye neepayipi zoxinzelelo kwiindawo zokucoca ioyile. Lo mgangatho ulawula ngokungqongqo izixhobo, inkqubo yokuvelisa kunye neemfuno zokusebenza kweepayipi zentsimbi ukuqinisekisa ukusebenza kwazo okuzinzileyo kwiindawo ezinomhlwa ophezulu, ubushushu obuphezulu kunye noxinzelelo oluphezulu.
2. Izixhobo kunye nokusebenza
1. Izinto eziphambili
GB/T9948-2013imibhobho yentsimbi engenamthungo yenziwe ngezinto ezahlukeneyo ze-alloy ezikumgangatho ophezulu, kuquka:
Intsimbi yesakhiwo sekhabhoni:20G, 20MnG, 25MnG
Intsimbi yesakhiwo se-alloy:15MoG, 20MoG, 12CrMoG, 15CrMoG, 12Cr2MoG, 12CrMoVG, 12Cr3MoVSiTiB
Intsimbi engatyiwayo kunye nentsimbi engatshisi ubushushu: 1Cr18Ni9, 1Cr18Ni11Nb
2. Ukusebenza okungundoqo
Ukumelana nobushushu obuphezulu: Ifanelekile kwiinkqubo zobushushu obuphezulu ezifana nokuqhekeka kwepetroleum (ukuya kuthi ga kwi-600°C nangaphezulu).
Ukumelana noxinzelelo oluphezulu: Izixhobo ezinamandla aphezulu ziqinisekisa ukusebenza ngokukhuselekileyo kwemibhobho phantsi kweemeko zoxinzelelo oluphezulu.
Ukumelana nokugqwala: Izinto ezikhethekileyo ze-alloy zimelana ngempumelelo ne-corrosive media ezifana ne-hydrogen sulfide kunye ne-carbon dioxide.
Ukuthembeka okuphezulu: Ulawulo oluqinileyo lomgangatho luqinisekisa ukuba iimpawu zoomatshini kunye nokwakheka kweekhemikhali zemibhobho yentsimbi kuyahlangabezana nomgangatho we-GB/T9948.
3. Inkqubo yokuvelisa
Imibhobho yentsimbi engenamthungo ye-GB/T9948-2013 iveliswa ngokuqengqeleka okushushu kunye nokutsalwa okubandayo (ukuqengqeleka):
Inkqubo yokuqengqeleka eshushu: ityhubhu ejikelezileyo → ukufudumeza → ukugqobhoza → ukuqengqeleka → ubungakanani → ukupholisa → ukulula → ukuhlolwa komgangatho → ukugcinwa.
Inkqubo yokuzoba ngokubandayo (ukuqengqeleka): ukugqobhoza → ukukhahlela → ukuzoba ngokubandayo → unyango lobushushu → ukolula → ukufunyanwa kweziphene → ukumakisha → ukugcinwa.
Zombini ezi nkqubo ziqinisekisa ukuchaneka okuphezulu, umphezulu ogudileyo kunye neempawu ezintle zoomatshini beepayipi zentsimbi.
4. Amasimi esicelo
Imibhobho yokuqhekeka kwepetroleum ye-GB/T9948 isetyenziswa kakhulu kwezi:
Ishishini le-Petrochemical: iyunithi yokuqhekeka, i-hydrogenation reactor, izixhobo zokulungisa i-catalytic
Ishishini lokucoca ioyile: iityhubhu zesithando sobushushu obuphezulu, abatshintshi bobushushu, iipayipi zoxinzelelo oluphezulu
Ukuthuthwa kwegesi yendalo: imibhobho yokudlulisa igesi enoxinzelelo oluphezulu, engamelani nokugqwala
Ukwenziwa kwebhoyila: iibhoyila zesikhululo samandla, iinkqubo zemibhobho yebhoyila yemizi-mveliso
5. Amathuba emarike
Ngenxa yophuhliso olukhawulezileyo lweshishini le-petrochemical lasekhaya kunye nokukhula kwemfuno yemarike yamazwe ngamazwe, umthamo wokuthengiswa kwemibhobho yentsimbi engenamthungo ye-GB/T9948 uyaqhubeka nokunyuka. Ukumelana kwayo nobushushu obuphezulu kunye nokumelana nokugqwala kwenza ukuba ibe yeyona nto ikhethwayo kwimibhobho yokuqhekeka nokucocwa kwepetroli.
6. Amanyathelo okuzikhusela xa uthenga kwaye usebenzisa
Ukukhetha izinto ezingqongqo: Khetha izinto ezifanelekileyo ze-GB/T9948 (ezifana ne-12CrMoG, 15CrMoG, njl.njl.) ngokweemeko zokusebenza (ubushushu, uxinzelelo, ukubola).
Isiqinisekiso somgangatho: Qinisekisa ukuba umbhobho wentsimbi uyahlangabezana nomgangatho we-GB/T9948-2013 kwaye unikezele ngengxelo yokuhlolwa yomntu wesithathu.
Ukufakelwa nokugcinwa: Kuphephe ukonakala koomatshini ngexesha lokuthuthwa nokufakelwa, kwaye ujonge rhoqo ukugqwala kombhobho kunye neemeko zoxinzelelo.
Umbhobho wokuqhekeka kwepetroleum we-GB/T9948-2013 ube lukhetho olufanelekileyo kwi-petrochemical, refishing, igesi yendalo kunye neminye imboni ngenxa yeenzuzo zayo zokuxhathisa amaqondo obushushu aphezulu, ukumelana noxinzelelo oluphezulu kunye nokuxhathisa ukugqwala. Ukukhetha izinto ezifanelekileyo (ezifana ne-12CrMoG, 15CrMoG, njl.njl.) kunye nokulandela ngokungqongqo imigangatho kunokuqinisekisa ukusebenza okukhuselekileyo nokuzinzileyo kwexesha elide kombhobho.
Amagama angundoqo:#Umbhobho wokuqhekeka kwepetroliyam, #GB/T9948, #GB/T9948-2013 umbhobho wentsimbi engenamthungo, #Umbhobho wentsimbi oqhekekayo wepetroliyam, #12CrMoG, #15CrMoG, #Ubushushu obuphezulu kunye nombhobho wentsimbi oxinzelelweyo, #Umbhobho wePetrochemical
Ixesha leposi: Juni-09-2025
