H THNG BM QUT

Mc tiu Xc nh cc loi bm/qut Xc nh cc thng s c bn ca bm/qut Xc nh c tnh c bn ca bm/qut Xc nh cc vn v gii php TKNL cho h thng bm/qut.

2

Ni dungTng quan v bm/qut La chn bm/qut Ghp bm hiu qu iu chnh nng sut bm/qut Ti u ha h thng phn phi

3

TNG QUAN

4

H thng nc

S h thng nc n gin

Nng lng in t ngun 100% Tn tht truyn ti v phn phi 8% Tn Tn Tn tht tht tht ng truyn bm c ng 2,5% in 3,5% 4,5% Tn Tn Tn tht tht tht r van ng r 7,0% ng 2% 2,5%

Nng lng hu ch 70%

Biu Sankey.

BmPhn loi Bm th tch: lu lng thp, p sut cao Piston, Bnh rng, Trc vt, Roto Bm cnh dn: lu lng cao, p sut thp Ly tm, Hng trc . Thng s c bn H - Ct p (m) H = Hht + Hy Q - Lu lng (m3/s) N - Cng sut (kW)N = QH/102 Trong : - Khi lng ring (kg/m3), (nc l 995,7kg/m3 30oC, 992,2kg/m3 40oC) - hiu sut bm (0.7 0.85)

c tnh bmc tnh C bn ng vi s vng quay xc nh n(v/p) = constHmN(kW) H

c tnh Tng hp

(n)

H

n ni+1

1

2

3 4

4

N P

HCK

ni n2 n1

3

2

1

0

Q0

Q m3/s

Qut giPhn loi - Qut gi hng trc: lu lng cao, p sut thp. - Qut gi li tm: lu lng thp p sut cao (thng thng p