Ingakwazi ukuhlola ama-valve avimbela ukuhlehla kwephampu

Hlola ama-valvecan effectively prevent pump reversal. Umgomo oyinhloko ukuthembela emehlukweni wengcindezi yoketshezi ukuze kuzuzwe ukuqhutshwa kwendlela eyodwa kanye nokuhlehla ukunqamula. Lapho ipompo isebenza ngokujwayelekile, ukugeleza okuhamba phambili koketshezi kuphusha i-disc ye-valve ukuze ivuleke, futhi okuphakathi kudlula kahle; Lapho iphampu ima ngokuzumayo noma ukucindezela kwesistimu kungavamile, okwenza uketshezi lugeleze ngokuhlehla, i-disc ye-valve ivala ngokushesha ngaphansi kwamandla adonsela phansi ayo, amandla entwasahlobo, noma ukucindezela okuhlanekezela uketshezi, kuvimbe indlela yokubuyela emuva. Lesi sici sisenza sibe isisetshenziswa esibalulekile sokuvikela amaphampu nezinjini zokushayela.

Ukuthatha uhlelo lwephampu yamanzi njengesibonelo, uma ahlola i-valveayifakiwe, lapho ipompo yamanzi ima ngenxa yokwehluleka kwamandla noma ukungasebenzi kahle, ukucindezela ngaphakathi kwepompo kuyanyamalala, futhi amanzi anomfutho ophezulu oxhunywe ku-outlet azogeleza abuyele epompo ngokuphambene, esunduza i-impeller ukuze ihlehle. Ukuzungezisa emuva akubangeli nje kuphela ukuxegiswa kwe-impeller nokuguga komkhono we-shaft, kodwa kungase futhi kuholele ekulayishweni kwemoto nokutubeka, okubeka usongo olukhulu ekuphepheni kwemishini. Ngemuva kokufaka i-valve yokuhlola, ukugeleza kwamanzi okubuyela emuva kuzokwenza ngokushesha ukuthi i-disc ye-valve ivalwe, inqamule isiteshi sokugeleza esibuyela emuva, ngaleyo ndlela igweme ukulimala emzimbeni wepompo ngenxa yokujikeleza okuphambene.

Umphumela we-anti reverse wehlola ama-valveihlobene eduze nohlobo lwazo kanye nendawo yokufaka. Ama-valve okuhlola ama-swing anokumelana nokugeleza okuphansi ngenxa yokujikeleza kwe-valve disc ezungeze i-axis, okuwenza afanelekele amapayipi anobubanzi obukhulu, aphakathi nendawo naphansi; Phakamisa ama-valve okuhlola afinyelela ukuvaleka ngokuslayida i-disc ye-valve eduze kwe-eksisi, ngokusebenza okungcono kokuvala. Kodwa-ke, anokumelana nokugeleza okuphezulu futhi asetshenziswa kakhulu ezimeni ezinobubanzi obuncane kanye nezimo zokucindezela okuphezulu. Kungakhathalekile ukuthi hlobo luni, kuyadingeka ukuthi kuqinisekiswe ukuthi indlela yokufaka iyahambisana nendlela yokugeleza kwendawo ephakathi nendawo, nokuthi usekelo lwepayipi luzinzile ukuze lusebenzise ngokugcwele umsebenzi walo wokuhlehla.

Ukwengeza, ama-valve okuhlola angakwazi futhi ukunciphisa ukwenzeka kwesando samanzi - lapho i-valve disc ivala ngokushesha, nakuba kungase kube khona ukushaqeka okufushane kwengcindezi ngenxa ye-inertia yoketshezi, amandla ayo okubhubhisa angancishiswa ngokukhetha uhlobo olunengqondo (njengama-axial flow check valves) noma ukufaka amadivaysi okuphazamisa. Ngakho-ke, ukufaka i-valve yokuhlola endaweni yokuphuma kwepompo akuyona nje isilinganiso esidingekayo sokuvimbela ukujikeleza okuphambene, kodwa futhi isixhumanisi esibalulekile sokuqinisekisa ukusebenza okuphephile nokuzinzile kwalo lonke uhlelo lwamanzi.