Mapampu ouma a vacuum nthawi zambiri amapanga phokoso lalikulu la utsi panthawi yogwira ntchito. Pofuna kuchepetsa phokosoli ndikukonza malo ogwirira ntchito, ogwiritsa ntchito ambiri amasankha kukhazikitsacholetsa phokosopa doko lotulutsa utsi. Choletsa phokoso nthawi zambiri chimachepetsa phokoso mwa kusintha njira yoyendera mpweya kudzera mkati mwake kapena mwa kuyamwa mphamvu ya mawu pogwiritsa ntchito zipangizo zoyatsira mawu. Komabe, ogwiritsa ntchito ena azindikira kuti atayika choletsa phokoso, mphamvu yopopera mpweya ya pampu ya vacuum ikuwoneka kuti ikuchepa, ndi kuchepa kwa liwiro lopopera. Nchiyani chimayambitsa izi? Tiyeni tiwunike zifukwa pang'onopang'ono.
Pambuyo poti choletsa mpweya chayikidwa, mpweya wotulutsa mpweya uyenera kudutsa m'njira zake zamkati usanatulutsidwe. Zoletsa mpweya nthawi zambiri zimakhala ndi zinthu zokhala ndi mabowo, zipinda zowonjezera mpweya, kapena zinthu zina zoletsa mpweya. Ngakhale kuti mapangidwe awa ndi othandiza kuchepetsa phokoso, amapangitsanso kuti mpweya usayende bwino, zomwe zimapangitsa kuti mpweya uyambe kukwera. Izi zimadziwika kuti "backpressure." Kuwonjezeka kwa backpressure kumatanthauza kukana kwambiri mpweya, zomwe zimafuna kuti pampu ya vacuum igonjetse kuthamanga kwambiri kuti itulutse mpweya, zomwe zimakhudza kugwira ntchito bwino kwa mpweya.
Zotsatira za kupanikizika kwa msana pa pampu ya vacuum zimawonekera makamaka m'mbali ziwiri:
- Kuchepa kwa liwiro la kupopa: Kutuluka koipa kwa utsi kumachepetsa liwiro lomwe mpweya umatuluka m'chipinda chopopa, motero kumakhudza liwiro lonse la kupopa.
- Chotsukira mpweya chotsika kwambiri: Kukana kutulutsa mpweya kwambiri kumapangitsa kuti mpweya wotsala ukhale mkati mwa pampu, zomwe zimapangitsa kuti mpweya wochepa kwambiri ukhalepo.
Kusintha konseku kungapangitse ogwiritsa ntchito kumva kuti liwiro la kupopa lachepa.
Chifukwa chake, kugwirizana pakati pa choletsa phokoso ndi pampu ya vacuum ndikofunikira kwambiri. Ngati m'mimba mwake mwa choletsa phokoso ndi kakang'ono kwambiri kapena njira yake yamkati ndi yopapatiza kwambiri, kukana kutulutsa mpweya kudzawonjezeka kwambiri. Mosiyana ndi zimenezi, ngati choletsa phokoso chili ndi kukula koyenera kuti chigwirizane ndi kusuntha kwa pampu, mphamvu ya kupopa mpweya idzakhala yochepa. Posankha choletsa phokoso, ndikofunikira kusankha chitsanzo chomwe chikugwirizana ndi kuchuluka kwa utsi wa pampu ndi kukula kwa doko.
Kuphatikiza apo, zinthu zina panthawi yogwira ntchito zingakhudzenso momwe utsi umagwirira ntchito. Mwachitsanzo, kuchuluka kwa matope kapena fumbi la mafuta mkati mwa choletsa mpweya kumatha kutseka njira yoyendera mpweya, zomwe zimapangitsa kuti utsi usatuluke. Kuyang'anira ndi kuyeretsa nthawi zonse utsiwocholetsa phokosoakulimbikitsidwa kuti apitirize kugwira ntchito bwino ndikupewa kusokoneza kosafunikira pa ntchito ya pampu ya vacuum.
Nthawi yotumizira: Meyi-22-2026
