Kufunika kwa Milu ya Ma Tubular Yachitsulo Pakumanga Mizere ya Madzi Apansi pa Dziko
Pomanga mizere ya madzi apansi panthaka, kusankha zinthu ndikofunikira kwambiri pakuonetsetsa kuti dongosololi likugwira ntchito bwino komanso logwira ntchito bwino kwa nthawi yayitali.Mulu wa Tubular wa ChitsulosMapaipi, omwe amadziwika kuti mapaipi, amagwiritsidwa ntchito kwambiri chifukwa cha mphamvu zawo zapamwamba, kukana dzimbiri komanso kusinthasintha kwawo. Pankhaniyi, mapaipi olumikizidwa mozungulira ndi chisankho chabwino kwambiri chomangira mapaipi amadzi apansi panthaka chifukwa cha zofunikira zake komanso zabwino zake.
Mapaipi olumikizidwa mozungulira amapangidwa pogwiritsa ntchito njira yolumikizira msoko wozungulira, yomwe imatha kupanga cholumikizira chozungulira chozungulira kutalika kwa chitolirocho. Ukadaulo wolumikizira uwu sungotsimikizira kuti mawotchiwo ndi abwino komanso apamwamba, komanso amapanga mapaipi okhala ndi mainchesi akulu ndi makoma okhuthala, zomwe zimapangitsa kuti akhale oyenera mikhalidwe yovuta ya mapaipi amadzi apansi panthaka.
Katundu wa Makina
| Giredi 1 | Giredi 2 | Giredi 3 | |
| Mphamvu ya Yield Point kapena yield, min, Mpa(PSI) | 205 (30 000) | 240 (35 000) | 310 (45 000) |
| Mphamvu yokoka, mphindi, Mpa(PSI) | 345 (50 000) | 415 (60 000) | 455 (66 0000) |
Chimodzi mwa zinthu zofunika kwambiri pa chitoliro cholumikizidwa ndi spiral welded ndi kuthekera kokwaniritsa kulondola kwakukulu komanso kulunjika poyerekeza ndi chitoliro cholumikizidwa ndi straight seam. Izi ndizofunikira kwambiri pakupanga mizere yamadzi apansi panthaka, komwe kulinganiza bwino mapaipi ndi kuyenda kwa madzi mofanana ndizofunikira kwambiri pakugwira ntchito bwino kwa dongosolo. Kuphatikiza apo, pamwamba posalala pamkati pa mapaipi olumikizidwa ndi spiral welded kumachepetsa kukangana ndi kutsika kwa kuthamanga kwa magazi, zomwe zimathandiza kuwonjezera kuyenda bwino kwa madzi ndikuchepetsa kugwiritsa ntchito mphamvu.
Kuphatikiza apo, chitoliro cholumikizidwa ndi spiral chimapezeka m'zinthu zosiyanasiyana ndi zokutira kuti zikwaniritse zofunikira zachilengedwe komanso zogwirira ntchito. Kuyambira chitsulo cha kaboni mpaka alloy ndi chitsulo chosapanga dzimbiri, mapaipi awa amapereka kukana kwambiri dzimbiri, kusintha kwa mankhwala ndi kupsinjika kwa makina, zomwe zimapangitsa kuti zikhale zodalirika kwa nthawi yayitali pakugwiritsa ntchito mizere yamadzi apansi panthaka. Kuphatikiza apo, zokutira zoteteza monga epoxy, polyethylene, ndi polyurethane zitha kugwiritsidwa ntchito kuti ziwonjezere kulimba ndi moyo wautumiki wa mapaipi olumikizidwa ndi spiral, makamaka m'nthaka yowononga komanso m'madzi apansi panthaka.
Ponena za kukhazikitsa, Ma Piles a Steel Tubular, kuphatikizapo mapaipi olumikizidwa ndi spiral welded, ali ndi ubwino waukulu pakupanga mapaipi a pansi pa nthaka. Mphamvu zawo zonyamula katundu wambiri komanso kukhazikika kwa kapangidwe kake zimathandiza kuti pakhale kuzama kwambiri komanso kuthandizira mitsinje yamadzi, ngakhale m'nthaka yovuta komanso m'malo ovuta. Kuphatikiza apo, kupepuka kwa mapaipi achitsulo kumathandiza kusamalira ndi kunyamula, kuchepetsa nthawi yoyika ndi ndalama. Chitoliro cholumikizidwa ndi spiral welded chingalumikizidwe mosavuta pogwiritsa ntchito njira zosiyanasiyana zolumikizira, zomwe zimapereka yankho lothandiza komanso lothandiza pa ntchito za mitsinje ya pansi pa nthaka.
Mwachidule, kugwiritsa ntchito Mapaipi a Chitsulo (makamaka mapaipi olumikizidwa ndi spiral welded) ndikofunikira kwambiri pakupanga mapaipi apansi panthaka bwino. Ndi mawonekedwe ake apadera, kuphatikizapo kulondola kwakukulu, kukana dzimbiri komanso kusinthasintha kwa kuyika, mapaipi olumikizidwa ndi spiral amapereka kuphatikiza kwabwino kwambiri kwa mphamvu ndi magwiridwe antchito kuti mapaipi amadzi azikhala olimba kwa nthawi yayitali. Pamene kufunikira kwa zomangamanga zamadzi zodalirika komanso zokhazikika kukupitilira kukula, kufunika kogwiritsa ntchito zinthu zapamwamba kwambiri.Mulu wa Chitsulo cha ChitsulosPakumanga mizere ya madzi apansi panthaka, sizingatheke kupitirira muyeso.
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