I. .
-5. 50 .
1. -5:
- , (5-5.8);
- Vmin-Vmax, / (7-10);
- Mm, (1080);
- , kH/m/ N, (1.2-2.5);
- , (10).
2. (1):
Ra=2.5×5.8=14.5 kH.
3.
| -75 | -75 | |
| Vp, / | 5 8.4/ | 6 9.0 / |
| P, kH | 17.1 | 18.2 |
4. (2), η =0.85-0.95:
-75, η =14.5/17.1=0.85
-150, η =14.5/18.2=0.79
-75+-5 6 Vp= 9.0 / - .
:
-75+-5 5 ,Vp =8.4 /.
5. (3), τ=0.85
-75, W=0.1×5.8×8.4×0.85=4.15 /
6. (4), δ =0.85
-75, Gp=15, Q=(15×0.85)/4.15=3.08 /
7. (5):
-75, H=1/4.15=0.24(×/)
, -75: - 5 ; 8.4 /, η=0.85, W=4.15/, Q=3.08/, H=0.24×/.
II. .
-5. 50 .
1. -5:
- , (4-6);
- V min-V max, / (5-10);
- Mm, (2000);
- , kH// N, (1.3-2.0/10-15);
- . (6).
2. (6):
Ra= 15.6+5.7=21.38 (6)
Rt= (2000+6000)*9.8*0.20=15.6 (7)
Rnp=3.8*15/10=5.7 (8)
3. :
| -75 | -74 | -70 | -75 | |||||||||
| Vp, / | 3 6.8 / | 3 6.5 / | 5 6.7 / | 4 7.3 / | ||||||||
| P, kH | 23.0 | 22.5 | 24.3 | |||||||||
4. (2) : η =0.85-0.95
-75, η =21.38/23=0.93
-74, η =21.38/22.5=0.96
-70, η =21.38/23=0.93
-75, η =21.38/24.3=0.87
-74+-5 3,Vp=6.5 / - .
:
-75+-5 3 , Vp =6.8 /
-70 +-5 5 , Vp =6.7 /
-75 +-5 3,Vp =7.3 /
5. (3):
-75, W1=0.1×6×6.8×0.50=2.04 /
|
|
|
-70, W2=0.1×6×6.7×0.50=2.01/
-75, W3=0.1×6×7.3×0.50=2.19/
6. (4) : δ=0.85
-75, Gp=15, Q1=(15×0.85)/2.04=6.25 /
-70, Gp=13.5, Q2=(13.5×0.85)/2.01=5.70 /
-75, Gp=16.5, Q3=(16.5×0.85)/2.19=6.40 /
7. (5):
-75, H1=1/2.04=0.49 (×/)
-70, H2=1/2.01=0.5 (×/)
-75, H2=1/2.19=0.46 (×/)
W, Q H , 4 -75 , -75, -70.
, -75: - 4 ; 7.3 /, η=0.87, W=2.19 /, Q=6.40 /, H=0.46 ×/.
III. .
-5-35.
50 .
1. -5-35:
- , (1.75);
- Vmin-Vmax, / (6-12);
- Mm, ;(850)
- , 0.3.( 0.18)
2. (9):
Ra=5×50×0.18×0.35=15.75
3. :
| -74 -75 | ||
| Vp, / | 4 8.0 / | 5 8.4 / |
| P, kH | 17.5 | 17.1 |
4. (2) : η =0.85-0.95
-74, η =15.75/17.5=0.90
-75, η =15.75/17.1=0.92
:
-74+ -5-35 4 , Vp =8.0 /
-75+ -5-35 5 , Vp =8.4 /
5. (3), τ=0.85:
-74, W1=0.1×1.75×8.0×0.85=1.19 /
-75, W2=0.1×1.75×8.4×0.85=1.25/
6. (4) : δ=0.85
-74, Gp=15.0, Q1=(15×0.85)/1.19=10.71 /
-75, Gp=15.0, Q2=(15×0.85)/1.25=10.2 /
7. (5):
-74, H1=1/1.19=0.84 (×/)
-75, H2=1/1.25=0.80(×/)
W, Q H , 5 -75 , -74.
, -75: - 5 ; 8.4/, η=0.92, W=1.19/, Q=10.2 /, H=0.80 ×/.
IV. C.
-6. 50 .
1. -6:
- , (6);
- Vmin-Vmax, / (9);
- Mm, ;(1300)
- , kH// N, (3-7);
- (30∙).
2. (1):
Ra=6×7=42 kH.
3. :
| -150 | -700 | |
| Vp, / | 1 7.6 / | 2 3 9.2 / |
| P, kH | 42.5 | 44.5 |
4. (2) : η =0.85-0.95
-150, η =42/42.5=0.98
|
|
|
-700, η =42/=0.94
-150 + -6 1 - .
:
-700+ -6 3 2,Vp =9.2 /
5. (3), τ=0.85:
-700, W3=0.1×6×9.2×0.85=4.69 /
6. (4) : δ=0.85
-700, Gp=35, Q3=(35×0.85)/4.69=6.34 /
7. (5):
-700, H3=1/4.69=0.21 (×/)
, -700: - 3 2 ; 9.2 /, η=0.94, W= 4.69 /, Q= 6.34 /, H=0.21×/.
V. .
-16+-1.0. 50 .
1. -16:
- , (13.5);
- Vmin-Vmax, / ( 13);
- Mm, ;(1800)
- , kH (3.0-4.5);
- , kH (30-50).
1.1. -1.0:
- , (0.93);
- Vmin-Vmax, / (9-12);
- Mm, ;(42)
- , kH/m/ N, (0.6-0.9);
- . (8).
2. (10):
n=13.5/0.93=14.5 (11)- 12, , n=12;
Ra=12×0.9×0.93+3.0=13.04 (10)
3.
-75:V -6 ,9.3 /, P, - 14.9 .
4. (2), η =0.85-0.95:
75, η =13.04/14.9=0.87
:
-75 + -16+-1.0 6 ,Vp =9.3 /.
5. (3), τ=0.85:
-75, W1=0.1×0.93×12×9.3×0.85=8.8 /
6. (4):
-75, Gp=15, Q1=(15×0.85)/8.8=1.44 /
7. (5):
-75, H1=1/8.8=0.11(×/)
, -75: - 6 ; 9.3 /, η=0.87, W=8.8 /, Q=1.44 /, H=0.11 ×/.
