Monga maziko ofunikira pamafakitale amakono ndi zomangamanga, mapaipi achitsulo oyambira ali ndi ntchito zosiyanasiyana komanso ntchito zosiyanasiyana, zomwe zimakhudza magawo ofunikira kuyambira pakumanga zomangamanga mpaka kupanga makina. Nkhaniyi iyamba ndi tanthauzo la chitoliro chachitsulo choyambira ndikuwunika pang'onopang'ono kuchuluka kwa ntchito yake, mawonekedwe aukadaulo, ndi gawo lalikulu m'mafakitale osiyanasiyana.
I. Tanthauzo ndi Gulu la Mapaipi Oyambira Zitsulo
Mapaipi achitsulo oyambira nthawi zambiri amatanthawuza mapaipi achitsulo omwe amagwiritsidwa ntchito pothandizira, kutengera madzimadzi, kapena ngati zida zamakina. Amapangidwa makamaka ndi chitsulo cha carbon, alloy steel, kapena chitsulo chosapanga dzimbiri. Kutengera ndi kupanga, iwo akhoza kugawidwa m'magulu awiri: mipope zitsulo zopanda msoko ndi mipope zitsulo welded. Mipope yachitsulo yosasunthika imapangidwa kudzera mumayendedwe otentha kapena zojambula zozizira ndipo zimakhala ndi mphamvu zambiri komanso kukana kupanikizika. Nthawi zambiri amagwiritsidwa ntchito ponyamula{4}}kuthamanga kwambiri kwa madzimadzi kapena makina amakina. Welded zitsulo mapaipi amapangidwa ndi crimping ndi kuwotcherera pepala zipangizo. Ndiwotsika-otsika mtengo ndipo amagwiritsidwa ntchito mofala-pamayendedwe otsika amadzimadzi kapena mafelemu omangira.
Kutengera momwe amagwirira ntchito, mapaipi achitsulo amathanso kugawidwa m'mapaipi achitsulo (monga mapaipi omangirira), mapaipi achitsulo (monga mapaipi amafuta ndi gasi), komanso mapaipi achitsulo (monga mapaipi a masilinda a hayidiroliki). Kugawika kumeneku kumatsimikizira mwachindunji kusankha kwazinthu, kapangidwe ka makulidwe a khoma, ndi chithandizo chapamwamba.
II. Mapulogalamu a Core a Foundation Steel Pipe
1. Zomangamanga ndi zomangamanga
M'gawo la zomangamanga, chitoliro chachitsulo choyambira chimagwiritsidwa ntchito kwambiri ngati scaffolding, formwork support, and structural frameming. Kulimba kwake kwakukulu komanso kuwotcherera kwake kumapangitsa kukhala chisankho choyenera pazothandizira zosakhalitsa kapena zokhazikika. Mwachitsanzo, chomangira-mtundu wa chitoliro chachitsulo chomwe chimagwiritsidwa ntchito kwambiri-kumanga nyumba zokwera zimadalira katundu-kuchuluka kwake ndi kukhazikika kwa chitoliro chachitsulo kuti zitsimikizire chitetezo. Large-diameter zitsulo pipeni imagwiritsidwanso ntchito m'mapulojekiti a zomangamanga monga maziko a milu ya milatho ndi ma tunnel, kunyamula kupanikizika kwakukulu kwa nthaka ndi katundu wosunthika.
2. Mafuta ndi Gasi Makampani
Njira yayikulu yogwiritsira ntchito chitoliro chachitsulo m'gawo la mphamvu ndikuyenda-kuthamanga kwambiri. Pachitukuko cha malo opangira mafuta ndi gasi, makina a mapaipi aatali-atali kuchokera ku machubu mpaka kumalo oyeretsera amadalira kwambiri-paipi yachitsulo yamphamvu. Chitoliro chachitsulo choterechi chiyenera kukwaniritsa zofunikira zolimba monga kukana dzimbiri (monga API 5L miyezo), -kukana kupanikizika (mpaka makumi a MPa), ndi kutsika-kutentha kocheperako (koyenera madera a polar). M'zaka zaposachedwa, chifukwa chakukula kwa gasi wa shale, mapaipi achitsulo omwe amawotchedwa pafupipafupi-akhala chisankho chachikulu pamapaipi a gasi wa shale chifukwa chakuchulukira kwawo kupanga komanso kutsika mtengo.
3. Kupanga Makina ndi Makampani Oyendetsa Magalimoto
M'gawo lamakina, mapaipi achitsulo oyambira amagwiritsidwa ntchito ngati zida zopangira ma hydraulic system mapaipi, manja oyendetsa shaft, ndi zida zolondola. Mwachitsanzo, masilinda a hayidiroliki m'makina omanga nthawi zambiri amapangidwa ndi mipope yachitsulo yozizira-yokokedwa bwino kwambiri, ndipo kutha kwa makoma ake amkati kumakhudza mwachindunji magwiridwe antchito a makina. Popanga magalimoto, zinthu monga mapaipi otulutsa mpweya ndi mabatani owongolera zimagwiritsanso ntchito kwambiri mapaipi azitsulo kapena zitsulo zosapanga dzimbiri, zomwe zimakwaniritsa zofunikira zopepuka komanso kukana dzimbiri.
4. Chitetezo cha Madzi ndi Umisiri wa Municipal
Maukonde operekera madzi akumizinda, zimbudzi, ndi mapaipi oteteza moto zonse zimatengera mapaipi achitsulo. Ngakhale mapaipi achitsulo akuchulukirachulukira, mapaipi achitsulo amakhalabe njira yosasinthika{1}}yotumiza madzi amphamvu (monga ku South-mpaka-North Water Diversion Project) komanso kudutsa momwe zinthu ziliri. M'zaka zaposachedwa, mapaipi apulasitiki{5}}azitsulo okhala ndi mizere athana ndi vuto la dzimbiri la mapaipi achitsulo akale ndipo awona kukula kwakukulu pakugwiritsa ntchito kwawo popereka madzi ndi ngalande zamatauni.
III. Makhalidwe Aukadaulo ndi Zosankha Zofunikira
Zizindikiro zazikulu za ntchito zamapaipi oyambira zitsulo zimaphatikizapo kulimba kwamphamvu, kulimba kwa zokolola, kutalika, komanso kulimba kwamphamvu. Mwachitsanzo, chitoliro chachitsulo cha Q235B chomanga chiyenera kukhala ndi mphamvu zokolola za Greater kuposa kapena zofanana ndi 235 MPa, pamene API 5CT chitsulo chitoliro cha nsanja za m'mphepete mwa nyanja imafuna mphamvu yamphamvu ya Kuposa kapena yofanana ndi 40 J pa -20 digiri . Mfundo zazikuluzikulu posankha chitoliro ndi monga:
Zomwe Zachilengedwe: Kutentha kopopera mchere-paipi yachitsulo chosapanga dzimbiri (monga 316L) ndi yabwino m'madera a m'mphepete mwa nyanja.
Katundu Katundu: Chitoliro chachitsulo chozimitsidwa ndi chotenthedwa chiyenera kusankhidwa pazinthu zomwe zimakhudzidwa ndi katundu wamphamvu.
Economics: Chitoliro chachitsulo chokhazikika chingagwiritsidwe ntchito-zinthu zosafunikira kwambiri kuti muchepetse ndalama.
IV. Tsogolo Zachitukuko
Ndi kupita patsogolo kwa sayansi yazinthu, mapaipi oyambira zitsulo akupita patsogolo kwambiri komanso kusinthasintha kwakukulu. Mwachitsanzo, mapaipi achitsulo a nano-akutikita amapangitsa kuti asawonongeke ndipo ndi oyenera kumakina amigodi. Fiber-mapaipi achitsulo ophatikizika, omwe amaphatikiza mphamvu zambiri ndi kulemera kochepa, akutuluka m'zida zatsopano zamagetsi. Kuphatikiza apo, umisiri wopanga digito (monga laser-mapaipi achitsulo) akuthandizira kusintha kwabwino kwa kupanga ndi kuwongolera bwino.
Mapeto
Kuchokera ku maziko a skyscraper kupita ku mapaipi amafuta ndi gasi a transoceanic, mapaipi azitsulo amaziko amathandizira magwiridwe antchito amakono ndi magwiridwe antchito odalirika. Kumvetsetsa kukula ndi mawonekedwe awo sikungofunikira pakusankha zinthu zauinjiniya komanso ndi gawo lofunikira pakuwongolera kupita patsogolo kwaukadaulo m'mafakitale osiyanasiyana. Ndi zopambana mu zipangizo zatsopano ndi kupanga njira, malire ntchito mapaipi maziko zitsulo adzapitiriza kukula.
