Isingeniso kumagama avamile epompo (2) - ukusebenza kahle + injini

isivinini samandla
1. Amandla Asebenzayo:Aziwa nangokuthi amandla okukhipha. Kubhekisela emandleni atholwe yi-
uketshezi olugeleza ngepompo yamanzi ngesikhathi esisodwa lusuka emanzini
iphampu.

I-Pe=ρ GQH/1000 (KW)

ρ——Ubuningi boketshezi olulethwa yipompo （kg/m3）
γ——Isisindo soketshezi olulethwa yipompo （N/m3）
Q——Ukugeleza kwephampu (m3/s)
H——Ikhanda lephampu（m)
g——Ukusheshisa kwamandla adonsela phansi (m/s2).

2. Ukusebenza kahle
Kubhekisele kumaphesenti esilinganiso samandla asebenzayo ephampu kumandla omgodi, achazwa yi-η. Akunakwenzeka ukuthi wonke amandla omgodi adluliselwe oketshezini, futhi kukhona ukulahleka kwamandla ephampu yamanzi. Ngakho-ke, amandla asebenzayo ephampu ahlala engaphansi kwamandla omgodi. Ukusebenza kahle kuphawula izinga elisebenzayo lokuguqulwa kwamandla ephampu yamanzi, futhi kuyinkomba ebalulekile yobuchwepheshe nezomnotho yephampu yamanzi.

η =Pe/P×100%

3. Amandla omgodi
Aziwa nangokuthi amandla okufaka. Kubhekiselwa emandleni atholwe yi-pump shaft evela emshinini wamandla, okufanekiswa yi-P.

Amandla e-PShaft =Pe/η=ρgQH/1000/η (KW)

4. Amandla okufanisa
Kubhekiselwa emandleni omshini wamandla ahambisana nephampu yamanzi, emelelwa yi-P.

P (Amandla Okufanisa) ≥ (1.1-1.2) Amandla e-PSaft

5. Isivinini Sokujikeleza
Kubhekisele enanini lokujikeleza ngomzuzu kwe-impeller yepompo yamanzi, emelelwa yi-n. Ingabe iyunithi r/min.