isivinini samandla
1. Amandla Asebenzayo:Kwaziwa nangokuthi amandla okukhipha.Kubhekiselwa kumandla atholwe yi-
uketshezi olugeleza empompini yamanzi ngesikhathi esisodwa ukusuka emanzini
futha .
Pe=ρ GQH/1000 (KW)
ρ——Ukuminyana koketshezi olulethwa iphampu (kg/m3)
γ——Isisindo soketshezi olulethwa iphampu (N/m3)
Q——Ukugeleza kwephampu (m3/s)
H——Ikhanda lephampu (m)
g——Ukusheshisa amandla adonsela phansi (m/s2).
2.Ukuphumelela
Isho iphesenti lesilinganiso samandla asebenzayo wephampu kumandla we-shaft, aboniswa ngu-η.Akunakwenzeka ukuthi wonke amandla e-shaft adluliselwe oketshezini, futhi kukhona ukulahlekelwa kwamandla empompini yamanzi.Ngakho-ke, amandla asebenzayo wepompo ahlala engaphansi kwamandla we-shaft.Ukusebenza kahle kuphawula izinga elisebenzayo lokuguqulwa kwamandla ephampu yamanzi, futhi kuyinkomba ebalulekile yezobuchwepheshe nezomnotho yephampu yamanzi.
η =Pe/P×100%
3. Amandla omgodi
Kwaziwa nangokuthi amandla okufaka.Kubhekiselwa emandleni atholwe yi-pump shaft emshinini wamandla, okhonjiswa ngu-P.
Amandla e-PShaft =Pe/η=ρgQH/1000/η (KW)
4. Amandla afanayo
Isho amandla omshini wamandla afaniswa nephampu yamanzi, emelwe ngu-P.
P(Amandla Okufanisa)≥(1.1-1.2)Amandla we-PShaft
5.Isivinini sokuzungeza
Ibhekisela enanini lama-revolutions ngomzuzu we-impeller yepompo yamanzi, emelwe ngu-n.Ingabe iyunithi r/min.
Isikhathi sokuthumela: Dec-29-2023