Kufunika kwa Mapaipi Odulidwa ndi Ogwiritsidwa Ntchito Pazinthu Zamakono, Pakati pa Cangzhou, Hebei Province, pali mphero yachitsulo yomwe yakhala maziko a makampani opanga mapaipi achitsulo kuyambira pomwe idakhazikitsidwa mu 1993. Kampaniyo ili ndi malo okwana masikweya mita 350,000, ili ndi chuma chonse cha 680 miliyoni RMB, ndipo imagwiritsa ntchito antchito odzipereka 680. Pakati pa zinthu zake zambiri pali mapaipi odulidwa ndi ogwiritsidwa ntchito, gawo lofunikira kwambiri pa zomangamanga zamakono, makamaka poyendetsa madzi apansi panthaka.
Pansi pa nthakaChitoliro Chosemedwa ndi Sawndi ofunikira kwambiri poyendetsa madzi moyenera komanso modalirika m'malo osiyanasiyana. Ndiwo maziko a zomangamanga zathu zamakono, kuonetsetsa kuti madzi oyera akufika m'nyumba, m'mabizinesi, ndi m'madera a ulimi. Kusankha zipangizo za mapaipi awa n'kofunika kwambiri, chifukwa ayenera kupirira mavuto a chilengedwe cha pansi pa nthaka pamene akusunga umphumphu wawo kwa nthawi yayitali. Chimodzi mwa zosankha zodziwika kwambiri pa ntchito izi ndi chitoliro chachitsulo cha carbon welded spirally, chodziwika bwino chifukwa cha mphamvu zake komanso kulimba kwake.
Chitoliro chachitsulo chozungulira cha S235 JR ndi chitoliro cha mzere cha X70 SSAW (Spiral Submerged Arc Welded) ndi zinthu ziwiri zomwe zimagwiritsidwa ntchito kwambiri m'mapaipi amadzi apansi panthaka. Chitoliro cha S235 JR chimayamikiridwa kwambiri chifukwa cha luso lake labwino kwambiri la makina, zomwe zimapangitsa kuti chigwiritsidwe ntchito m'njira zosiyanasiyana, kuphatikizapo mayendedwe amadzi. Kutha kwake kukana kusintha kwa kutentha pansi pa kupsinjika kumatsimikizira kuti chikukwaniritsa zofunikira za malo osungiramo madzi apansi panthaka.
Masiku ano, chifukwa cha njira yofulumira yopititsira patsogolo mizinda, njira yodalirika yotumizira madzi pansi pa nthaka yakhala chinsinsi chotsimikizira kuti anthu azikhala ndi moyo wabwino. Monga kampani yotsogola mumakampani opanga mapaipi achitsulo, fakitale ina yachitsulo ku Cangzhou City, Hebei Province, yakhala ikupereka mapaipi opangidwa ndi Saw Welded ogwira ntchito bwino kwambiri pa zomangamanga zapadziko lonse lapansi kuyambira pomwe idakhazikitsidwa mu 1993. Mapaipi ake achitsulo ozungulira a S235 JR ndi mapaipi ozungulira a X70 omwe ali pansi pamadzi, okhala ndi mawonekedwe abwino kwambiri amakina, akhala zinthu zofunika kwambiri pa ntchito zosamalira madzi pansi pa nthaka.
1. Mphamvu yayikulu komanso kukana dzimbiri kumatsimikizira chitetezo cha kutumiza madzi kwa nthawi yayitali. Chitoliro chozungulira cha S235 JR: Chili ndi kukana bwino kwambiri ku kusintha kwa kupsinjika ndipo chimayenera malo ovuta a geological, kuonetsetsa kuti payipiyo ikugwira ntchito bwino kwa nthawi yayitali. Chitoliro cha X70 SSAW: Chopangidwa ndi chitsulo champhamvu kwambiri komanso ukadaulo wapamwamba wowotcherera wozungulira, sichimapanikizika komanso sichimagwedezeka, chimayenera kutumiza madzi kwa mtunda wautali komanso malo ovuta.
2. Ukadaulo wapamwamba pamodzi ndi kuwongolera bwino khalidwe umapanga njira yokhazikika ya mapaipi. Fakitale iyi imagwiritsa ntchito ukadaulo wozungulira wozungulira (SAW) kuti ipange bwino machubu akuluakulu, okhala ndi makoma owonda, ndikuwonjezera kugwiritsa ntchito zinthuzo ndikuwonetsetsa kuti zikugwira ntchito bwino. Mogwirizana ndi gulu la akatswiri la anthu 680 komanso mzere wamakono wopanga wamtengo wapatali wa mayuan 680 miliyoni, tikuwonetsetsa kuti chitoliro chilichonse chachitsulo chikukwaniritsa miyezo yapadziko lonse lapansi, zomwe zikuthandizira pakukula kwa zomangamanga zobiriwira. Ndi kukweza kwa zofunikira pa kayendetsedwe ka madzi padziko lonse lapansi, mapaipi opangidwa ndi macheka a Cangzhou Steel Plant apitiliza kupereka njira zolimba komanso zotsika mtengo zoyendera madzi m'matauni, m'maulimi ndi m'mafakitale, ndikulimbikitsa kumanga zomangamanga zokhazikika zosamalira madzi.
Mapaipi odulidwa ndi kulumikizidwa opangidwa ndi Cangzhou Steel Mills ndi gawo lofunika kwambiri pamakina apansi panthaka. Mapaipi opangidwa ndi S235 JR ndi X70 spiral submarine arc welded, okhala ndi mawonekedwe abwino kwambiri amakina komanso okana zinthu zachilengedwe, ndi ofunikira kwambiri pakuwonetsetsa kuti madzi akuyenda bwino. Poyang'ana mtsogolo, kufunika kwa zinthuzi kudzapitirira kukula, zomwe zikuwonetsa kufunikira kwa makampani opanga mapaipi achitsulo opanga zinthu zapamwamba komanso njira zatsopano.
Nthawi yotumizira: Ogasiti-18-2025