100m 3 /h 980.6kPa 5-1 10 1 1 2 3 5 4 3 5-1 1 2 3 4 5 10 6 7 8 9 10 11 12 3 4 5 7 209
5-2 5-2 120 1 5-1 n S A ASn q V Tm = 5-1 60 q Vm f i(1 ) ASn = 2 A η m 3 /s V 60 iαasn q = η 60 i m 3 /s 5-2 Vm V η V η V =0.95~0.99 η V =0.90~0.97 η V =0.85~0.95 η V 5~10% A A=πD 2 /4 D m 2 f α α = 1 2 A f A>>f 1 S m S ψ=s /D ψ ψ n r/min 100~200 r/min 210
n 5-3 5-3 r ϕ x x=r 1-cosϕ 5-3 dx C = = rω sin ϕ 5-4 dt q VT =AC=Arω sinϕ 5-5 0 ϕ π q VT =0 π ϕ 2π ϕ=3π/2 q VTmax =Arω δ δ= q Vtmax /q VTm 5-6 δ 1 5-1 S=2r ω=2πn/60 δ=π=3.14 δ 1.57 δ 1.06 1.11 n 2 n q V -H P sh -H η -H 5-4 q V H 211
q V -H 5-4 q VTm =const. P sht =ρgq VTm H T P sht H T P sh -H η -H H η 5-4 5-5 q V -H 5-1 n 5-5 n q V -H 10MPa 212
5-6 1 2 3 A C B C 5-6 1 2 3 4 5 6 B 5-7 V 5-7 V 1 V 2 1 213
5m 6m/s q VT 2 2 ( πd 0 / 4 πd i / 4) bn qvt = m 3 /s 5-7 60 d 0 m d i m b m n r/min q VT q V η V 85~90% 2 q V η V = 5-8 qvt 5-8 q V -H P sh -H η -H 5-8 q V -H η -H 214
5-8 38m 5-8 240 200mm 160m 3 /h 35m 870r/min 36.75kW 5-9 1 2 5-9 1 2 3 70~80% 1854 9.8~196kPa 9.8~ 80kPa 215
5-10 5-10 1 2 3 4 5 6 7 8 5-11 a ~ e a 1 a 2 b 1 b 2 5-11 a V 1 b a 2 V 1 δ 1 V 1 c a V 1 b 1 b 2 V 2 216
d b 2 δ 2 V 2 b e a V 2 V 3 V 1 Z q VT0 =2 Z V 0 m 3 /r V 0 V 1 = V 2 = V 3 = = V 0 m 3 η V n r/min q V = n q VT0 η V =2 n Z V 0 η V m 3 /min 5-9 V 0 λ V0 / L λ = 2 πd / 4 L m D m 5-9 q V π = λ D 2 2 Z L n η 5-12 V m 3 /min 70%~90% 5-10 5-12 p q V P sh η V p p P sh 1 217
2 3 4 1990~1998 1 5-13 1 2 5-13 3 4 218
Nash Hytor 5-13 5-13 1 2 3 4 5 6 5-14 7 8 5-14 a 450mmHg 5-14 b 500mmHg 5-14 a 300mm b 75mm 5-15 5-15 1 2 3 4 5 1 219
5 2 3 4 220