INTSHAYELELO NGEXESHA LOKUGQIBELA (2) - Ukusebenza kakuhle +

isantya samandla
1. Amandla asebenzayo:Kwabizwa ngokuba ngamandla okukhupha. Ibhekisa kumandla afunyenwe ngu
Ulwelo luhamba ngempompo yamanzi kwicandelo leyunithi ukusuka emanzini
impompo.

I-PE = ρ gqh / i-1000 (kW)

ρ-Ukuxinana kolwelo olunikezelweyo ngempompo (kg / m3)
Ubunzima bolwelo oluziswe yimpompo (n / m3)
Q - impompo yokuhamba (m3 / s)
H - intloko ye-pump (m)
g - Ukukhawulezisa umxhuzulane (m / s2).

2.Ukusebenza kakuhle
Ibhekisa kwipesenti yomlinganiselo wamandla esebenzayo yempompo yamandla eshafti, eboniswe ngu-η. Akunakwenzeka ukuba onke amagqabantshintshi atshintshelwe kulwelo, kwaye kukho ilahleko yamandla kwimpompo yamanzi. Ke ngoko, amandla asebenzayo empompo ahlala engaphantsi kwamandla eshabi. Ukusebenza kakuhle kuyaphawula inqanaba lokutshintsha kwamandla lwempompo yamanzi, kwaye yindawo ebalulekileyo yobugcisa nezoqoqosho yempompo yamanzi.

η = PE / P × 100%

I-3. Amandla eshaft
Kwaziwa ngokuba ngamandla okufaka. Ibhekisa kumandla afunyenwe ngumrhumo wempompo ovela kumatshini wamandla, otyhalwa nguP.

I-PSHAFT RORT = PE / η = ρgqh / 1000 / η (kW)

4. Amandla atshatileyo
Ibhekisa kumandla omshini wamandla ahambelana nempompo yamanzi, emelwe nguP.

P (Mandla oMandla) ≥ (1.1-1.2)))))

Isantya sokwakhiwa kwe-5.I
Ibhekisa kwinani leenguqu ngomzuzu womntu oxhamlayo kwimpompo yamanzi, emele n. Yiyunithi r / min.