1. Ifomula yokubala i-pump shaft yamandla

Isantya sokuhamba × intloko × 9.81 × umxhuzulane ophakathi okhethekileyo ÷ 3600 ÷ impompo esebenzayo

Iyunithi yokuhamba: cubic / iyure,

Iyunithi yokuphakamisa: iimitha

P=2.73HQ/η,

Phakathi kwazo, H yintloko ku-m, i-Q yizinga lokuhamba kwi-m3/h, kwaye η kukusebenza kakuhleimpompo yeinjini yomoya enzulu kakuhle. I-P yishaft amandla kwi-KW. Oko kukuthi, amandla eshaft yempompo P=ρgQH/1000η(kw), apho ρ =1000Kg/m3,g=9.8

Iyunithi yomxhuzulane okhethekileyo yiKg/m3, iyunithi yokuhamba yi-m3/h, iyunithi yentloko ngu-m, 1Kg=9.8 Newtons

Emva koko P=umxhuzulane okhethekileyo*flow* intloko*9.8 Newton/Kg

=Kg/m3*m3/h*m*9.8 Newton/Kg

=9.8 Newton*m/3600 imizuzwana

=Newton*m/367 imizuzwana

=Watts/367

Oku kuphuma ngasentla yimvelaphi yeyunithi. Le fomula ingentla lubalo lwamandla amanzi. Amandla e-shaft ahlulwe ngokusebenza kakuhle.

Masithi amandla e-shaft yi-Ne, amandla emoto yi-P, kwaye i-K yi-coefficient (i-reciprocal of performance)

Amandla eMotor P=Ne*K (K inamaxabiso ahlukeneyo xa i-Ne yahlukile, bona le theyibhile ingezantsi)

Ne≤22 K=1.25

  amashumi anambini

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2. Ifomula yokubala yamandla empompi eludaka

Umlinganiselo wokuhamba Q M3/H

Phakamisa i-H m H2O

Ukusebenza kakuhle n%

Ukuxinana koludaka A KG/M3

Amandla eshaft N KW

N=H*Q*A*g/(n*3600)

Amandla eemoto nawo kufuneka athathele ingqalelo ukusebenza kakuhle kokuhanjiswa kunye nokhuseleko. Ngokuqhelekileyo, uxhulumaniso oluthe ngqo luthathwa njenge-1, ibhanti ithathwa njenge-0.96, kwaye i-factor yokhuseleko yi-1.2.

3. Ubuchule bePompu kunye neFomula yayo yokubala

Ibhekisa kumlinganiselo wamandla asebenzayo e impompo yeinjini yomoya enzulu kakuhle kumandla weshaft. η=Pe/P

Amandla ompompo ahlala ebhekisa kumandla okufaka, oko kukuthi, amandla adluliselwe ukusuka kumhambisi ohamba phambili ukuya kwi-shaft shaft, ngoko ke ikwabizwa ngokuba yi-shaft power kwaye imelwe nguP.

Amandla asebenzayo yile: imveliso yentloko yempompo, isantya sokuhamba kobunzima kunye nokukhawuleza komxhuzulane.

Pe=ρg QH (W) okanye Pe=γQH/1000 (KW)

ρ: Ubuninzi bolwelo oluthuthwa yimpompo (kg/m3)

γ: Ubunzima bolwelo oluthuthwa yimpompo γ=ρg (N/m3)

g: isantya ngenxa yomxhuzulane (m/s)

Izinga lokuhamba kobunzima Qm=ρQ (t/h okanye kg/s)

4. Intshayelelo yokuSebenza kweeMpompo

Yintoni impompo esebenzayo? Ithini ifomula?

Impendulo: Ibhekisela kumlinganiselo wamandla asebenzayo epompo kumandla we-shaft. η=Pe/P

Amandla equla elinzulu impompo yeinjini ethe nkqo ngokuqhelekileyo ibhekisela kumandla okufakayo, oko kukuthi, amandla adluliselwe ukusuka kwi-prime mover ukuya kwi-shaft shaft, ngoko ke ikwabizwa ngokuba yi-shaft power kwaye imelwe yi-P.

Amandla asebenzayo yile: imveliso yentloko yempompo, isantya sokuhamba kobunzima kunye nokukhawuleza komxhuzulane.

Pe=ρg QH W okanye Pe=γQH/1000 (KW)

ρ: Ubuninzi bolwelo oluthuthwa yimpompo (kg/m3)

γ: Ubunzima bolwelo oluthuthwa yimpompo γ=ρg (N/m3)

g: isantya ngenxa yomxhuzulane (m/s)

Ukuhamba kobunzima Qm=ρQ t/h okanye kg/s