Ponena za njira zothirira, chimodzi mwa zinthu zofunika kwambiri ndi pampu. Mapampu amagwira ntchito yofunika kwambiri posuntha madzi kuchokera ku magwero kupita ku mbewu kapena minda, kuonetsetsa kuti zomera zimapeza michere yomwe zimafunikira kuti zikule ndikukula. Komabe, popeza pali njira zosiyanasiyana zothirira zomwe zilipo pamsika, ndikofunikira kumvetsetsa kusiyana pakati pa mapampu a centrifugal ndi othirira kuti mupange chisankho chodziwa bwino.
Choyamba, tiyeni tifotokoze tanthauzo la pampu yothirira.Mapampu othiriraZapangidwa mwapadera kuti zipereke madzi kuminda ya minda. Ntchito yake yayikulu ndikutulutsa madzi kuchokera ku magwero monga zitsime, mitsinje kapena malo osungira madzi ndikugawa bwino kuminda kapena mbewu.
Komano, pampu ya centrifugal ndi mawu omveka bwino okhudza pampu yomwe imagwiritsa ntchito mphamvu ya centrifugal kusuntha madzi. Ngakhale kuti mapampu onse a centrifugal ndi othirira amagwiritsidwa ntchito muulimi, pali kusiyana kwakukulu pakati pa awiriwa komwe kumawasiyanitsa.
Kusiyana kwakukulu ndi kapangidwe ndi kapangidwe kake. Pampu ya centrifugal imakhala ndi impeller ndi chivundikiro cha pampu. Impeller imazungulira ndikutulutsa madzi kunja, ndikupanga mphamvu ya centrifugal yomwe imakankhira madzi kudzera mu pampu ndikulowa mu njira yothirira. Mosiyana ndi zimenezi, mapampu othirira amapangidwa makamaka kuti agwiritsidwe ntchito paulimi, poganizira zinthu monga magwero a madzi, kayendedwe ka madzi ndi kukakamizidwa. Mapampu awa nthawi zambiri amakhala olimba kwambiri kuti athe kupirira zofunikira zogwiritsidwa ntchito mosalekeza m'malo ovuta a ulimi.
Kusiyana kwina kofunikira ndi makhalidwe a ntchito. Mapampu a centrifugal amadziwika ndi mphamvu zawo zoyendera madzi ambiri komanso mphamvu zochepa zoyendera madzi. Ndi abwino kwambiri pa ntchito zomwe zimafuna kusamutsa madzi ambiri, monga m'malo opangira mafakitale kapena m'malo osungira madzi. Mapampu othirira madzi, kumbali ina, amapangidwira kuti apereke madzi pamphamvu kwambiri komanso pamlingo wochepa woyenda madzi. Izi ndizofunikira kuti ulimi wothirira ukhale wabwino chifukwa mbewu zimafunika kupereka madzi ambiri pansi pa mphamvu zokwanira kuti zitsimikizire kuti madziwo amalowa bwino komanso kuti afalikire bwino m'nthaka yonse.
Mapampu a centrifugal amapereka ubwino pankhani ya kugwiritsa ntchito mphamvu moyenera komanso kugwiritsa ntchito mphamvu moyenera. Mapampu awa adapangidwa kuti azigwira ntchito mofulumira kwambiri, zomwe zimapangitsa kuti mphamvu zizigwira ntchito bwino. Koma mapampu othirira madzi amapangidwira kuti azigwira ntchito yolimbana ndi kupsinjika kwakukulu, komwe kumafunikira magetsi ambiri kuti agwire ntchito. Komabe, kupita patsogolo kwa ukadaulo wa mapampu kwapangitsa kuti pakhale njira zogwiritsira ntchito mphamvu moyenera.mapampu othirirazomwe zimathandizira kugwiritsa ntchito mphamvu moyenera pamene zikukwaniritsabe mphamvu ndi kayendedwe ka madzi komwe kumafunika ndi makina othirira.
Mwachidule, ngakhale mapampu a centrifugal ndi othirira ali ndi ubwino wawo, kusiyana kwakukulu kuli mu kapangidwe kawo, makhalidwe awo, komanso kugwiritsa ntchito bwino mphamvu. Mapampu a centrifugal ndi osinthika ndipo ndi abwino kwambiri pakugwiritsa ntchito komwe kumafuna kusamutsa madzi ambiri pamavuto ochepa. Koma mapampu othirira, amapangidwira ntchito zaulimi ndipo amapereka mphamvu zambiri komanso kuyenda pang'onopang'ono kofunikira kuti kuthirira kukhale koyenera. Pomvetsetsa kusiyana kumeneku, alimi ndi akatswiri a zaulimi amatha kupanga zisankho zolondola posankha pampu yabwino kwambiri yokhudzana ndi zosowa zawo zothirira.
Nthawi yotumizira: Ogasiti-22-2023