I-GB/T9948ipayipi lensimbi elingenamthungo lokuqhekeka kwe-petroleum liyipayipi elingenamthungo elifanele amashubhu esithandweni somlilo, ama-heat exchangers namapayipi ezindaweni zokuhluza i-petroleum. Insimbi yekhwalithi ephezulu ye-carbon structural, i-alloy structural steel kanye nensimbi engagqwali ukumelana nokushisa kusetshenziswa amapayipi aqinile aqinile anomfutho ophezulu ukuze kukhiqizwe amapayipi okubhayela esitimu anengcindezi ephezulu nangaphezulu. Lawa mapayipi obhayela asebenza ngaphansi kokushisa okuphezulu nokucindezela, futhi amapayipi abhekene nentuthu yokushisa ephezulu. I-oxidation kanye nokugqwala kuzokwenzeka ngaphansi kwesenzo segesi nomhwamuko wamanzi. Ngakho-ke, amapayipi ensimbi ayadingeka ukuba abe namandla ahlala njalo, ukumelana ne-oxidation ephezulu, nokuzinza okuhle kwenhlangano. Ngaphezu kokuqinisekisa ukwakheka kwamakhemikhali kanye nezakhiwo zemishini, amapayipi kabhayela anengcindezi ephezulu kumele futhi Enze ukuhlolwa komfutho we-hydraulic ngalinye ngalinye, okuhlanganisa ukunwetshwa kanye nokuhlolwa kokucaba. Amapayipi angenasici anengcindezi ephezulu alethwa esimweni esiphethwe ukushisa.
Ukukhiqizwa kwepayipi lokuqhekeka kwe-petroleum nezindlela zokukhiqiza:

① Ngokuvamile, izinga lokushisa lesevisi lamapayipi ensimbi angenamthungo lingaphansi kuka-450°C. Amapayipi asekhaya ikakhulukazi enziwe ngeNombolo 10, No. 20,12CrMo, 15CrMo, 12CrlMo, 12CrlMoV, 12Cr5MoI, 12Cr9MoI, amapayipi ashisayo noma amapayipi adonswa abandayo.

② GB9948 amapayipi ensimbi angenamthungo ajwayelekile avamise ukuvezwa kumazinga okushisa aphezulu kanye nezimo zengcindezi ephezulu uma esetshenziswa. Amapayipi azokhipha i-oxidize futhi agqwale ngaphansi kwesenzo segesi yokushisa ephezulu kanye nomhwamuko wamanzi. Amapayipi ensimbi adingeka ukuthi abe namandla ahlala njalo, ukumelana okuphezulu ne-oxidation nokugqwala, kanye nokuzinza okuhle kwesakhiwo.

sebenzisa:

① Ngokuvamile, amapayipi ensimbi angenamthungo asetshenziswa kakhulu ukwenza amapayipi odonga lwamanzi, amapayipi amanzi abilayo, amapayipi esitimu ashisa kakhulu, amapayipi esitimu ashisa kakhulu amabhoyela esitimela, amapayipi entuthu amakhulu namancane namapayipi ezitini ezikhothamo, njll.

②GB9948 ipayipi lensimbi engenamthungo lisetshenziswa kakhulu ukwenza amashubhu okushisa okuphezulu, amashubhu okushisa kabusha, amashubhu omhlahlandlela womoya, amapayipi esitimu amakhulu, njll. kumabhayela anengcindezi ephezulu kanye nomfutho ophezulu wegazi.

Amapayipi ensimbi angenamthungo ajwayelekile e-GB9948 ahlukaniswe amapayipi abhayela ajwayelekile kanye namapayipi abiyela omfutho ophezulu ngokuya ngokusebenza kwawo okuphezulu kwezinga lokushisa. Kungakhathaliseki ukuthi amashubhu kabhayela avamile noma amashubhu kabhayela anomfutho ophezulu, angahlukaniswa abe amapayipi ensimbi ahlukahlukene ngokuya ngezidingo zawo ezihlukene zokusebenzisa.
GB/T9948 ipayipi lensimbi engenamthungo, ububanzi obungaphandle 10 ~ 426mm, ukujiya kodonga 1.5 ~ 26mm. Ububanzi bangaphandle nokuqina kodonga lwamashubhu esitimu esishisa kakhulu, amashubhu amakhulu entuthu, amashubhu amancane entuthu kanye namashubhu ezitini ezikhothame asetshenziswa kumabhayela wesitimela kucaciswe ngenye indlela.

Ikhwalithi yokubukeka: Akukho mifantu, ukugoqa, imiqulu, utwayi, i-delamination nemigqa yezinwele ezivunyelwe endaweni yangaphakathi nangaphandle yamapayipi ensimbi. Lezi zinkinga kufanele zisuswe ngokuphelele. Ukujula kokuhlanza akumele kudlule ukuchezuka okunegethivu kogqinsi oluvamile lodonga, futhi ukujiya kwangempela kodonga endaweni yokuhlanza akumele kube ngaphansi kobukhulu obuncane obuvunyelwe bodonga.