. P3 = 3 W3 = 2,3 p /c .
1. . .
h
h= 0,913
h = h*h2*h = 0,96*0,992*0,97 =0,913
h-
h-
h-
=3,286
= 3/h = 3/0,913 = 3,286
-
3
. 61.
= 4
4132 83720 min-1
4100S232880 min-1
4100L431440 min-1
411263955 min-1
4132 83720 min-1
u:
u = 10,47
u = n/n3 = 720*0,105/(2,3*p) = 10,47
n
n3 = 68,78 min-1
n3
n3 = W3/0,105 = 2,3*p/0,105 = 68,78 min-1
W3
u = 5, :
u = 2,094
u = u / u = 10,47/ 5 =2,094
:
1 - :
n1 = n =720 min-1 W1 = 0,105*n1 = 0,105*720 =75,6 /c
T1 = P/W1 = 3,286/75,6 = 43,466 *
T1
2 -
n2 = n1/u = 720/2,094 = 343,84 min-1
W2 = 0,105*n2 =0,105*343,84 = 36,1 /c
T2 = T1*u*h = 43,666*2,094*0,96 = 87,779 *
3 -
n3 = n2/u = 343,84/5 = 68,78 min-1
W3 = 0,105*n3 =0,105*68,78 = 7,22 /c
T3 = /W3 = 3290/7,22 = 455,67 *
n min-1 | W /c | T * | |
1 | 720 | 75,6 | 43,666 |
2 | 343,84 | 36,1 | 87,779 |
3 | 68,78 | 7,22 | 455,67 |
2. .
2.1 D1 :
D1 = (115135)
P1
n1
V = 8,478 /
D1 = 225
D1 = 125*=221,39
2.2 :
V = p*D1*n1/60 = 3,14*0,225*720/60 = 8,478 /
V1 ? 20 /
2.3 D2 :
D2 = u *D1*(1-e) = 2,094*225*(1-0,015) = 464,08
D2 = 450
e -.
D2 = 450
2.4 a :
a= 1000
(D1+D2) ? a ? 2,5(D1+D2)
675 ? a ? 1687,5
2.5 j:
j 1800-((D2-D1)/ a)*600
j = 166,50
j 1800-((450-225)/1000)*600 = 1800-13,20 = 166,50
j = 166,50 .. j ? 1500 .
2.6 L:
L = 3072,4
L = 2*a +(p/2)*(D1+D2)+(D2-D1)2/ 4*a =2*1000+(3,14/2)*(450+225)+(450-225)2/4*1000 = 3072,4
2.7 n:
n = 2,579 c-1
n = V/L = 8,478/3,0724 = 2,579 c-1
n ? 45 c-1
2.8 [GF]:
[GF] = GFo*Cj*CV*Cp*Cg = 1,62*0,965*0,752*1*0,9 = 1,058
GFo 11 GFo = 2,06-14,7*d/Dmind/Dmin = 0,03
[GF] = 1,058
Cj -. 12 : Cj = 0,965
CV . CV = 1,04-0,0004*V2 = 0,752
Cp . 13 : Cp = 1
Cg - Cg = 0,9
GFo = 2,06-14,7*0,03 = 1,62
2.9 S:
S = b*d = Ft/[GF] = 388,09/(1,058*106) = 0,0003668 2 = 366,8 2
Ft = 2T1/D1Ft T1 .
Ft = 2*43,66/0,225 = 388,09 H
S = 390 2
7 b = 60 d =6,5
B = 70
S = 60* 6,5 = 390 2
2.10 F :
F = 1164,27 H
F 3Ft
F = 3*388,09 = 1164,27 H
3. .
3.1 21 28 45 :
() ()
180220 240..280
G= 420 G= 600
NHo = 107NHo = 1,5*107
G