isantya samandla
1. Amandla asebenzayo:Ikwaziwa njengamandla emveliso. Ibhekisa kumandla afunyenwe yi
ulwelo oluqukuqela kwimpompo yamanzi ngeyunithi yexesha ukusuka emanzini
impompo .
Pe=ρ GQH/1000 (KW)
ρ——Ukuxinana kolwelo oluhanjiswa ngempompo (kg/m3)
γ——Ubunzima bolwelo buhanjiswa ngempompo (N/m3)
Q——Ukuhamba kwempompo (m3/s)
H——Intloko yempompo (m)
g——Ukukhawuleza komxhuzulane (m/s2).
2.Ubuchule
Ibhekisela kwipesenti yomlinganiselo wamandla asebenzayo wempompo kumandla we-shaft, echazwe ngu-η. Akunakwenzeka ukuba onke amandla e-shaft adluliselwe kulwelo, kwaye kukho ukulahleka kwamandla kwimpompo yamanzi. Ngoko ke, amandla asebenzayo epompo ahlala engaphantsi kwamandla e-shaft. Ucikizeko luphawula iqondo elisebenzayo lokuguqulwa kwamandla kwimpompo yamanzi, kwaye luphawu olubalulekileyo lobugcisa noqoqosho lwempompo yamanzi.
η =Pe/P×100%
3. Amandla eshaft
Ikwaziwa njengamandla okufaka. Ibhekisa kumandla afunyenwe ngumphini wempompo kumatshini wamandla, ochazwa nguP.
PShaft amandla =Pe/η=ρgQH/1000/η (KW)
4. Amandla okudibanisa
Ibhekisa kumandla omatshini wamandla ohambelana nempompo yamanzi, emelwe nguP.
P(Amandla oMatanisa)≥(1.1-1.2) PShaft amandla
5.Isantya sokujikeleza
Ibhekisa kwinani leenguqu ngomzuzu we-impeller yempompo yamanzi, emelwe yi-n. Ngaba iyunithi r/min.
Ixesha lokuposa: Dec-29-2023