管道磨损损失简易表总汇
管道磨损损失简易表总汇
|
管径(mm) |
25 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
180 |
200 |
250 |
300 |
|
|
流量 (L/S) |
1 |
32.7 |
3.5 |
0.8 |
|
|
|
|
|
|
|
|
|
|
2 |
13.0 |
1.4 |
3.1 |
0.8 |
0.4 |
|
|
|
|
|
|
|
|
|
4 |
|
55 |
13 |
3.2 |
1.6 |
0.4 |
|
|
|
|
|
|
|
|
6 |
|
|
29 |
7.1 |
3.3 |
0.8 |
0.23 |
|
|
|
|
|
|
|
8 |
|
|
|
13 |
5.9 |
1.3 |
0.4 |
0.16 |
|
|
|
|
|
|
10 |
|
|
|
20 |
9.6 |
2.1 |
0.63 |
0.26 |
0.11 |
|
|
|
|
|
|
|
15 |
|
|
21.6 |
6.8 |
1.3 |
0.58 |
0.27 |
0.13 |
|
|
|
|
|
|
20 |
|
|
|
8.6 |
2.7 |
1.10 |
0.50 |
0.26 |
0.07 |
|
|
|
|
|
|
25 |
|
|
13 |
4.1 |
1.6 |
0.74 |
0.37 |
0.12 |
|
|
|
|
|
|
30 |
|
|
19.4 |
5.9 |
2.3 |
1.05 |
0.53 |
0.18 |
0.07 |
|
|
|
|
|
|
40 |
|
|
10.7 |
4.2 |
1.90 |
0.93 |
0.30 |
0.12 |
|
|
|
|
|
|
50 |
|
|
|
6.4 |
2.90 |
1.50 |
0.48 |
0.19 |
|
|
|
|
|
|
|
60 |
|
|
9.4 |
4.30 |
2.10 |
0.68 |
0.27 |
|
|
|
|
|
|
|
70 |
|
|
|
5.80 |
2.90 |
0.93 |
0.37 |
|
|
|
|
|
|
|
|
80 |
|
|
7.70 |
3.70 |
1.20 |
0.49 |
|
|
|
|
|
|
|
|
90 |
|
|
9.60 |
4.70 |
1.50 |
0.61 |
|
|
|
|
|
|
|
|
|
100 |
|
|
6.10 |
1.90 |
0.76 |
|
|
|
|
|
|
|
|
|
110 |
|
|
7.20 |
2.30 |
0.90 |
|
|
|
|
|
|
|
|
|
|
120 |
|
8.50 |
2.80 |
1.10 |
|
|
|
|
|
|
|
|
|
|
130 |
|
|
3.30 |
1.30 |
|
|
|
|
|
|
|
|
|
|
|
140 |
|
3.70 |
1.50 |
|
|
|
|
|
|
|
|
|
|
|
160 |
|
4.90 |
2.00 |
|
|
|
|
|
|
|
|
|
|
|
|
180 |
0.20 |
2.40 |
|
|
|
|
|
|
|
|
|
|
|
|
200 |
|
3.00 |
|
注：直管道摩擦损失简易表（约计）管 100mm直管损失米数以新铸铁管为标准，旧管加倍。
一定管路直径的大流量值及大流速值
|
管路直径(mm) |
大流量（L/S） |
大流速（m/S） |
管路直径（mm） |
大流量（L/S） |
大流速（m/S） |
|
25 |
1 |
2.04 |
125 |
30.0 |
2.14 |
|
32 |
2.5 |
1.69 |
150 |
43.0 |
2.45 |
|
50 |
4.17 |
2.12 |
180 |
60.0 |
2.49 |
|
65 |
6.67 |
2.01 |
200 |
83.0 |
2.69 |
|
80 |
10.0 |
2.26 |
250 |
133.3 |
2.72 |
|
100 |
18.4 |
2.33 |
300 |
192.0 |
2.71 |
注：超过此值管路损失显着增加。
阀及弯管折合直管长度（每台）
|
名称 |
折合管路直径倍数 |
备注 |
|
全开闸阀 |
13 |
未畅开加倍 |
|
标准弯管 |
25 |
|
|
逆止阀 |
100 |
|
|
底阀 |
100 |
部分堵塞加倍 |
注：例如 100mm直径管，底阀折合 100倍直径等于 100χ100=10000=10m直管长度，假定流量为 8L/S查（直管道摩擦损失简易表）、只管每 100m损失1.3m、则 10m损失 0.13m、即一台 100m底阀，流量为 8L/S时，则损失扬程 0.13m。