Pipe ea mohala oa API 5L bakeng sa phala ea oli le khase

Lipeipi tsa khase li ka aroloa ka mefuta e meraro: lipeipi tse bokellang khase, lipeipi tsa khase, le lipeipi tsa phepelo ea khase ho latela ts'ebeliso ea tsona.

① Pipe ea ho bokella khase: pompo ho tloha selibeng sa sebaka sa khase ho ea setsing sa pokello ho ea setsing sa kalafo ea khase kapa setsing sa ho qala sa compressor sa khase, se sebelisoang haholo ho bokella khase ea tlhaho e sa tsoakoang e ntšitsoeng setulong. Ka lebaka la khatello e phahameng ea seliba sa khase, khatello ea pompo ea ho bokella khase hangata e ka holimo ho 100 kgf/cm2, 'me bophara ba phala ke 50 ho isa ho 150 mm.

②Lipeipi tsa khase: liphaephe tse tsoang litsing tse sebetsang ka khase kapa ho qala liteishene tsa li-compressor tsa mehloli ea khase ho ea libakeng tsa phepelo ea khase, basebelisi ba bangata kapa libaka tsa polokelo ea khase metseng e meholo, hammoho le lipeipi tse buisanang pakeng tsa mehloli ea khase. Ka mor'a ho sebetsa, pipeline e lumellana le lipalangoang tsa liphaephe. Khase e tloaelehileng ea boleng (sheba theknoloji ea phetisetso ea khase ea pipeline) ke karolo e ka sehloohong ea tsamaiso eohle ea phetisetso ea khase. Bophara ba phaephe ea khase bo boholo ho feta ba phaephe e bokellang khase le phaephe ea phepelo ea khase. Phaephe e kholo ka ho fetisisa ea khase e na le bophara ba 1420 mm. Khase ea tlhaho e tsamaisoa ka tlas'a khatello ho tloha setsing sa ho qala sa compressor le liteishene tsa compressor haufi le mola. Khatello ea phetisetso ea khase ke 70-80 kgf / cm2, 'me bolelele bohle ba pipeline bo ka fihla lik'hilomithara tse likete.

③Peipi ea phepelo ea khase: pompo ho tloha setsing sa taolo ea khatello ea litoropo le metering ho leba moleng oa lekala la basebelisi e na le khatello e tlase, makala a mangata, marang-rang a liphaephe tse teteaneng, le bophara ba liphaephe tse nyane. Ho phaella ho palo e kholo ea liphaephe tsa tšepe, liphaephe tsa ho fana ka khase e tlaase li ka boela tsa etsoa ka liphaephe tsa polasetiki kapa lisebelisoa tse ling. .

X-60 low-alloy steel (moeli o matla oa 42 kgf / cm2) o sebelisoa haholo bakeng sa liphaephe, 'me lisebelisoa tse matla tse phahameng tse kang X-65 le X-70 li se li qalile ho sebelisoa. E le ho fokotsa khanyetso ea likhohlano pompong, liphaephe tse ncha tsa tšepe tse fetang 426 mm ka kakaretso li koahetsoe ka masela a ka hare.

Likhase tsa thepa e fapaneng ea 'mele li tsamaisoa ka tatellano ka phaephe e le 'ngoe, le liteko tsa ho tsamaisa lipeipi tsa khase ea tlhaho le metsi ho -70°C le 77 kgf/cm2 khatello e phahameng. Sistimi ea ho tsamaisa lipeipi tsa khase ea tlhaho e na le likarolo tse peli: seteishene sa phetisetso ea khase ea liphaephe le sistimi ea mohala. Sistimi ea liphaephe e kenyelletsa liphaephe, likamore tsa li-valve haufi le tsela, meaho ea ho tšela (sheba projeke ea ho tšela lipeipi le projeke ea ho tšela lipeipi), seteishene sa tšireletso sa cathodic (sheba anticorrosion ea lipeipi), mokhoa oa puisano oa lipeipi, mokhoa oa ho tsamaisa le ho beha leihlo othomathike (sheba tlhahlobo ea lipeipi), joalo-joalo.

Pipe ea tšepe ke thepa e ka sehloohong ea lipeipi. Pipe ea tšepe ea khase ea tlhaho ke sehlahisoa se khethehileng sa metallurgical se entsoeng ka ts'ebetso e tebileng ea poleiti (lebanta). Ka lebaka la ho se tšoane ha theknoloji ea ts'ebetso, mokhatlo o hlophisitsoeng oa tšepe ea liphaephe o na le phapang e itseng ka tšepe ea liphaephe e hlahisoang ke bahlahisi ba sa tšoaneng. Ka nts'etsopele e tsoelang pele ea lipatlisiso tsa tšepe ea liphaephe, Canada le linaha tse ling li behile likarolo tsa liteko tsa tšepe ea liphaephe tsa X100 le X120. Morerong oa lipeipi tsa liphaephe tsa Jining tie-line naheng ea Chaena, tšepe ea lipeipi tsa boemo ba X80 e ile ea sebelisoa bakeng sa karolo ea teko ea 7.71km lekhetlo la pele. Phaephe ea Khase ea Bophirima-Bochabela e bolelele ba lik'hilomithara tse 4,843 ea moleng oa bobeli oa kutu e sebelisa tšepe ea X80 ea tšepe ea tšepe e bophara ba 1219mm, e eketsang khatello ea phetisetso ea khase ho 12Mpa. Ka kakaretso, tšepe ea X80 ke sebopeho sa mekhahlelo e 'meli ea ferrite le bainite, tšepe ea phala ea X100 ke sebopeho sa bainite,' me tšepe ea phala ea X120 ke ultra-low carbon bainite le martensite.

Bakeng sa liphaephe tsa khase ea tlhaho, matla, ho tiea le ho cheseha ke matšoao a mararo a mantlha a taolo ea boleng [6].