Ipayipi lomugqa we-API 5L wepayipi likawoyela negesi

Amapayipi egesi angahlukaniswa abe yizinhlobo ezintathu: amapayipi okuqoqa igesi, amapayipi egesi, namapayipi okusabalalisa igesi ngokuya ngokusetshenziswa kwawo.

①Ipayipi lokuqoqa igesi: ipayipi elisuka esihlokweni somthombo wegesi elidlula esiteshini sokuqoqa ukuya endaweni yokuhlanza igesi noma esiteshini sokuqala sokuminyanisa igesi, elisetshenziswa kakhulukazi ukuqoqa igesi yemvelo engalungiswanga ekhishwe esiqeshini. Ngenxa yokucindezela okukhulu komthombo wegesi, ingcindezi yepayipi lokuqoqa igesi ngokuvamile ingaphezu kuka-100 kgf/cm2, kanti ububanzi bepayipi bungu-50 kuya ku-150 mm.

②Amapayipi egesi: amapayipi asuka ezimbonini ezicubungula igesi noma aqala iziteshi zokuminyanisa igesi emithonjeni yegesi ukuya ezikhungweni zokusabalalisa igesi, abasebenzisi abakhulu noma izindawo zokugcina igesi emadolobheni amakhulu, kanye namapayipi axhumana wodwa phakathi kwemithombo yegesi. Ngemva kokucubungula, ipayipi lihambisana nokuthuthwa kwamapayipi. Igesi yemvelo esezingeni eliphezulu (bheka ubuchwepheshe bokudluliswa kwegesi yamapayipi) iyingxenye eyinhloko yalo lonke uhlelo lokudluliswa kwegesi. Ububanzi bepayipi legesi bukhulu kunolo lwepayipi lokuqoqa igesi kanye nepayipi lokusabalalisa igesi. Ipayipi elikhulu legesi linobubanzi obuyi-1420 mm. Igesi yemvelo ithuthwa ngaphansi kwengcindezi isuka esiteshini se-compressor sokuqala kanye neziteshi ze-compressor eduze komugqa. Ingcindezi yokudlulisa igesi ingu-70-80 kgf/cm2, kanti ubude bepayipi bungafinyelela izinkulungwane zamakhilomitha.

③Ipayipi lokusabalalisa igesi: ipayipi elisuka endaweni elawula ingcindezi yasemadolobheni kanye nesiteshi sokulinganisa amamitha kuya emugqeni wegatsha lomsebenzisi linengcindezi ephansi, amagatsha amaningi, inethiwekhi yamapayipi aminyene, kanye nobubanzi bepayipi elincane. Ngaphandle kwenani elikhulu lamapayipi ensimbi, amapayipi okusabalalisa igesi anengcindezi ephansi nawo angenziwa ngamapayipi epulasitiki noma ezinye izinto. .

Insimbi ye-X-60 low-alloy (umkhawulo wamandla wama-42 kgf/cm2) isetshenziswa kabanzi kumapayipi, futhi izinto ezisezingeni eliphezulu ezifana ne-X-65 ne-X-70 seziqalile ukusetshenziswa. Ukuze kuncishiswe ukumelana nokungqubuzana epayipini, amapayipi ensimbi amasha angaphezu kuka-426 mm ngokuvamile ambozwe ngezingubo zangaphakathi.

Amagesi ezakhiwo ezibonakalayo ezahlukene ahanjiswa ngokulandelana epayipini elifanayo, kanye nokuhlolwa kokuthuthwa kwepayipi legesi yemvelo eyigesi newuketshezi ku-70°C kanye no-77 kgf/cm2 wengcindezi ephezulu. Uhlelo lokuthuthwa kwepayipi legesi yemvelo luqukethe izingxenye ezimbili: isiteshi sokuhambisa igesi yamapayipi kanye nesistimu yolayini. Uhlelo lukalayini luhlanganisa amapayipi, amagumbi amavalvu eduze komzila, izakhiwo eziwelayo (bheka iphrojekthi yokuwela amapayipi kanye nephrojekthi yokuwela amapayipi), isiteshi sokuvikela i-cathodic (bheka i-anticorrosion yamapayipi), uhlelo lokuxhumana lwamapayipi, uhlelo lokuthumela kanye nokuqapha okuzenzakalelayo (bheka ukuqapha amapayipi), njll.

Ipayipi lensimbi liyinto eyinhloko yepayipi. Ipayipi yensimbi yokudlulisa igesi yemvelo ingumkhiqizo okhethekile we-metallurgical owakhiwe ngokucubungula okujulile kwepuleti (ibhande). Ngenxa yokungafani kobuchwepheshe benqubo, inhlangano yensimbi yamapayipi inomehluko othile ensimbi yamapayipi ekhiqizwa abakhiqizi abahlukahlukene. Ngokuthuthuka okuqhubekayo kocwaningo lwensimbi yamapayipi, iCanada namanye amazwe abeke izingxenye zokuhlola zensimbi yamapayipi i-X100 ne-X120. Kuphrojekthi yepayipi le-Jining tie-line e-China, insimbi yepayipi ye-X80-grade yasetshenziswa engxenyeni yokuhlola engu-7.71km okokuqala ngqa. Iphayiphi legesi eliseNtshonalanga-Mpumalanga elinobude obungu-4,843km lomugqa wesiqu somugqa wesibili lisebenzisa insimbi yepayipi lensimbi engu-X80 enobubanzi obungu-1219mm, okwandisa umfutho wokudluliselwa kwegesi ku-12Mpa. Ngokuvamile, insimbi ye-X80 iyisakhiwo sesigaba esikabili se-ferrite ne-bainite, insimbi yepayipi engu-X100 iyisakhiwo esikhethekile, futhi insimbi yepayipi engu-X120 iyi-ultra-low carbon bainite kanye ne-martensite.

Ngamapayipi egesi yemvelo, amandla, ukuqina kanye nokushisela yizinkomba ezintathu eziyisisekelo zokulawula ikhwalithi [6].