Yintoni i-NPSH kunye nendlela yokukhusela i-cavitation phenomenon

I-NPSH yiparameter ebalulekileyo elinganisa isakhono sempompo okanye omnye umatshini wolwelo ukuthintela umphunga wolwelo phantsi kweemeko ezithile. Imele amandla agqithisileyo ngeyunithi nganye yobunzima bolwelo kwindawo yokungena impompo edlula uxinzelelo lomphunga.

I-phenomenon ye-cavitation ibangelwa igesi eyenziwa yi-liquid kwi-inlet ye-impeller phantsi koxinzelelo oluthile lwe-vacuum ngexesha lokusebenza kwempompo, ukwenza iibhubhu. La maqamza, phantsi kwentshukumo yeempembelelo zamasuntswana olwelo, abangela ukhukuliseko kumphezulu wesinyithi we-impeller, ngaloo ndlela wonakalise i-impeller kunye nezinye iintsimbi. Ukuthintela i-cavitation, amanyathelo alandelayo anokuthathwa:

Yandisa uxinzelelo lwangaphandle. Ngokunyusa uxinzelelo lwe-inlet, uxinzelelo lwe-fluid lunokunyuswa kwaye ukuvela kwe-cavitation kunokunciphisa.

Ukunciphisa izinga lokuhamba. Ukunciphisa izinga lokuhamba kwamanzi kunokunciphisa izinga lokunciphisa uxinzelelo lwamanzi, ukunciphisa ukubunjwa kwamaqamza, kunye nokuthintela ukuvela kwe-cavitation phenomena.

Ukuphucula ubume besixhobo. Ngokuphucula isakhiwo sezixhobo, ukuhla koxinzelelo lwe-fluid kungancitshiswa, ukukhusela ngokufanelekileyo ukuvela kwamabhubhu kunye ne-cavitation.

Ukwandisa umda osebenzayo we-cavitation. I-NPSha esebenzayo yi-NPSha yesixhobo (umbhobho), ehambelana nendlela yokufakela impompo. Ukwandisa ixabiso layo kunokunyusa ukusebenza kwe-anti cavitation yepompo.

Nciphisa i-NPSH efunekayo. I-NPSHr iyipharamitha esisiseko sokusebenza kwe-cavitation yempompo ngokwayo, kwaye ukunciphisa ixabiso layo kunokuphucula ukusebenza kwe-anti cavitation yepompo.

Ngala manyathelo, i-cavitation inokuthintelwa ngokufanelekileyo kunye nokusebenza okuqhelekileyo kweempompo kunye nabanye oomatshini bamanzi banokukhuselwa.

Iimpompo ezininzi zinokunyusa ukuphakama kwazo, kodwa azikwazi ukusombulula ingxaki ye-cavitation. I-VSPi-vacuum enamandla yokuzikhupha impompoinokusebenza kakuhle kwe-anti cavitation, enobude obuphezulu bokufunxa ngaphezu kweemitha ezi-8, kwaye ayiyi kuvelisa i-cavitation phenomenon.