Kuhlelo lwe-hydraulic, i-cavitation iyisimo lapho izinguquko ezisheshayo zokucindezela emafutheni kubangela ukwakheka kwemigodi emincane egcwele umphunga ezindaweni lapho ukucindezela kuphansi kakhulu. Uma ingcindezi iyancipha ibe ngaphansi kwezinga lomhwamuko ogcwele izinga lokushisa likawoyela, imigodi eminingi egcwele umhwamuko izokwenziwa ngokushesha. Ngenxa yalokho, inani elikhulu lamabhamuza omoya liholela ekuyekisweni kukawoyela epayipini noma ezintweni ezisebenza ngamanzi.
I-phenomenon ye-cavitation ivame ukwenzeka ekungeneni nasekuphumeni kwe-valve nepompo. Lapho uwoyela ugeleza endaweni enyinyekile ye-valve, izinga lejubane loketshezi liyakhuphuka futhi umfutho kawoyela uyehla, ngaleyo ndlela kube ne-cavitation. Ngaphezu kwalokho, lesi senzakalo sivela lapho iphampu ifakwe endaweni ephakeme kakhulu, ukumelana nokumuncwa kukawoyela kukhulu kakhulu ngenxa yokuthi ububanzi bangaphakathi bepayipi lokumunca buncane kakhulu, noma lapho ukumuncwa kukawoyela kunganele ngenxa yesivinini sepompo siphezulu kakhulu.
Amabhamuza omoya, ahamba endaweni enengcindezi ephezulu namafutha, aphuka ngokushesha ngenxa yomzamo womfutho ophezulu, bese izinhlayiya eziwuketshezi ezizungezile zinxephezela amabhamuza ngesivinini esikhulu, ngaleyo ndlela ukungqubuzana kwesivinini esikhulu phakathi kwalezi zinhlayiya kukhiqiza umthelela we-hydraulic oyingxenye. Ngenxa yalokho, ukucindezela kanye nezinga lokushisa ngokwengxenye kukhuphuka kakhulu, okubangela ukuzamazama okusobala nomsindo.
Odongeni oluwugqinsi oluzungezile lapho imigodi igiya khona kanye nengaphezulu lezinto, izinhlayiya zensimbi ezingaphandle ziyawa, ngenxa yokuhlupheka kwesikhathi eside komthelela we-hydraulic kanye nezinga lokushisa eliphezulu, kanye nomzamo wokugqwala okukhulu okubangelwa igesi evela kuwoyela.
Ngemva kokubonisa isenzakalo se-cavitation kanye nemiphumela yayo engalungile, siyajabula ukwabelana ngolwazi lwethu nolwazi lokuthi singayivimbela kanjani ukuthi ingenzeki.
【1】Yehlisa ukwehla kwengcindezi endaweni ogeleza kuyo ngezimbobo ezincane nezikhala: isilinganiso sokucindezela okulindelekile sokugeleza ngaphambi nangemuva kwezimbobo kanye nezikhala ngu-p1/p2 <3.50 .
【2】Chaza ububanzi bepayipi lokumunca iphampu ye-hydraulic ngendlela efanele, futhi ukhawule isivinini samanzi ngaphakathi kwepayipi ngezindlela eziningi; yehlisa ukuphakama kokudonsa kwephampu, futhi unciphise ukulimala kokucindezela kumugqa wokungenisa ngangokunokwenzeka.
【3】Khetha i-T-junction yokungenisa umoya yekhwalithi ephezulu bese usebenzisa iphampu yamanzi anomfutho ophezulu njengephampu elisizayo ukuze unikeze uwoyela.
【4】Zama ukusebenzisa wonke amapayipi aqondile ohlelweni, ugweme ukujika okucijile kanye nokusikeka okuncane kancane.
【5】Thuthukisa amandla wesici ukuze umelane nokushumeka kwegesi.
Isikhathi sokuthumela: Sep-21-2020