I. Chiyambi chaMapaipi a Alloy Steel a A335

Mapaipi achitsulo a A335 amatanthauza mapaipi achitsulo a chromium-molybdenum ferritic alloy omwe amagwirizana ndiASTM A335/A335Mmuyezo. Mapaipi awa amadziwika bwino chifukwa cha kugwira ntchito kwawo bwino kwambiri kutentha kwambiri, amapereka mphamvu yolimba kwambiri, kukana okosijeni, komanso kukana dzimbiri. Magiredi odziwika kwambiri ndi P11, P22, ndi P91, ndipo P91 yakhala chinthu chofunikira kwambiri pamagetsi amakono chifukwa cha mphamvu zake zapamwamba komanso magwiridwe antchito.

II. Magawo Ofunikira Ogwiritsira Ntchito

Mapaipi a A335 omwe adapangidwa makamaka kuti agwiritsidwe ntchito m'malo otentha kwambiri komanso opanikizika kwambiri, amagwiritsidwa ntchito kwambiri m'mafakitale amphamvu komanso olemera.

Maboiler a Siteshoni Yamagetsi ndi Malo Opangira Magetsi: Iyi ndi ntchito yayikulu komanso yofunika kwambiri pa mapaipi a A335. Amagwiritsidwa ntchito kwambiri popanga ma superheater, ma reheater, ma main steam lines, ndi ma header a ma boiler a siteshoni yamagetsi. Zigawozi ziyenera kugwira ntchito kwa nthawi yayitali kutentha kwambiri (kupitirira 500°C, ngakhale 600°C) komanso kuthamanga kwambiri, pomwe mapaipi a A335 amatsimikizira chitetezo, magwiridwe antchito, komanso kukhazikika kwa nthawi yayitali kwa malo opangira magetsi.

Makampani Opanga Mafuta: Mu mafakitale a petrochemical, mapaipi a A335 amagwiritsidwa ntchito popangira machubu a pyrolysis furnace, machubu okonzanso, ndi mapaipi opangira. Ntchitozi zimaphatikizaponso kutentha kwambiri komanso malo owononga, monga hydrocracking ndi catalytic reforming processes, komwe mapaipi a A335 amasonyeza kulimba kwambiri.

Magawo Ena a Mafakitale:

Makampani Ogwiritsa Ntchito Zitsulo: Amagwiritsidwa ntchito m'mapaipi opangira zitofu zotenthetsera ndi zitofu zotenthetsera.

Makampani Opanga Mphamvu za Nyukiliya: Amapezanso ntchito m'makina achikhalidwe a zilumba za zomera zina za nyukiliya.

III. Kusanthula Msika Wogulitsa Zinthu Zakunja Padziko Lonse

Monga chinthu cha mafakitale chokhala ndi ukadaulo wapamwamba, kayendetsedwe ka malonda padziko lonse lapansiMapaipi a A335ikugwirizana kwambiri ndi ndalama zomwe zimayikidwa padziko lonse lapansi mu zomangamanga zamagetsi.

Mayiko/Zigawo Zazikulu Zotumiza Kunja:

China: Limodzi mwa opanga ndi kutumiza mapaipi achitsulo akuluakulu padziko lonse lapansi. Opanga aku China akutsogolera msika wapadziko lonse lapansi ndi unyolo wathunthu wamafakitale, ubwino wamtengo, komanso kupititsa patsogolo luso laukadaulo nthawi zonse. Zogulitsa zawo zimaphimba mitundu yonse ya magiredi kuyambira P11 yapakati ndi P22 mpaka P91 yapamwamba kwambiri.

European Union (makamaka Germany ndi Italy): Kwawo kuli makampani akuluakulu akale a zitsulo monga Mannesmann ku Germany ndi Tenaris ku Italy, omwe amadziwika ndi zinthu zapamwamba komanso zogwira ntchito bwino, makamaka misika yapamwamba komanso mapulojekiti aku Europe.

Japan: Makampani opanga zitsulo aku Japan (monga JFE, Sumitomo Metal) amadziwika kuti ndi apamwamba kwambiri chifukwa cha luso lawo lofufuza ndi kukonza zinthu, ndipo ali ndi mpikisano waukulu pa zipangizo zapamwamba monga P91 ndi P92.

India: Dziko lomwe likukula mofulumira kwambiri popanga mapaipi, likukhala wosewera wofunikira pamsika wapadziko lonse lapansi wokhala ndi mitengo yopikisana komanso pang'onopang'ono kukweza khalidwe.

Mayiko/Zigawo Zazikulu Zotumiza Zinthu Kunja:

Middle East (monga Saudi Arabia, UAE, Qatar): Kuyika ndalama kosalekeza m'mapulojekiti a petrochemical ndi kumanga malo opangira magetsi kumapangitsa dera lino kukhala msika wofunikira kwambiri wogulira mapaipi a A335.

Kumwera chakum'mawa kwa Asia (monga Vietnam, Indonesia, Malaysia): Kukula kwachuma mwachangu kukuyambitsa kufunikira kwakukulu kwa mphamvu, ndi malo atsopano opangira magetsi opangidwa ndi malasha ndi malo opangira mafuta omwe amalimbikitsa kutumizidwa kunja.

North America: Ngakhale kuti ili ndi mphamvu zake zopangira, pali kufunikira kwakukulu kwa zinthu zotsika mtengo kuchokera kunja, makamaka kuchokera ku China.

Misika Ina Yotukuka: Mayiko ku Latin America ndi chigawo cha CIS ndi omwe angathe kuitanitsa mapaipi a A335 kuchokera kunja panthawi yokonzanso zomangamanga za mphamvu zawo.

Zochitika ndi Mavuto a Msika:

Zochitika: Kusintha kwa mphamvu padziko lonse lapansi kukupangitsa kuti pakhale kufunikira kwa magetsi amphamvu komanso otsika mpweya, zomwe zimapindulitsa mwachindunji msika wamagetsi amphamvu kwambiri monga P91 ndi P92. Kuphatikiza apo, kukonzanso magetsi akale kumapereka kufunikira kwa msika kosalekeza.

Mavuto: Ogulitsa kunja akukumana ndi mavuto monga kukwera kwa chitetezo cha malonda padziko lonse lapansi (monga misonkho yoletsa kutaya zinthu), kusinthasintha kwa mitengo ya zinthu zopangira, mpikisano waukulu wamitengo, komanso miyezo yokhwima kwambiri yaubwino ndi zofunikira za satifiketi.

Mapeto Mapaipi achitsulo cha A335 ndi "mitsempha" yamakampani amakono, makamaka gawo la mphamvu. Msika wawo wotumiza kunja ukuwonetsa momwe mafakitale padziko lonse lapansi akukulirakulira komanso chitukuko cha mphamvu. Pamene mayiko omwe akutukuka akupitiliza kumanga zomangamanga zamagetsi ndi mayiko otukuka akukonzanso zinthu zawo zakale, kufunikira kwa mapaipi achitsulo cha A335 ogwira ntchito bwino kudzakhalabe kokhazikika. Kwa ogulitsa kunja, kukulitsa khalidwe la malonda, kutsatira miyezo yapadziko lonse lapansi, ndikupereka mitengo yopikisana ndiye mafungulo opambana pamsika wodzaza ndi mwayi ndi zovuta.