Таблица потерь напора в трубопроводах
Потери напора в стальных трубопроводах
В таблице выделенным шрифтом обозначены скорости протекания потока в м/с, а обычным — потери напора в метрах на 100 м прямого трубопровода.
|
Расход |
Потеря напора в стальных трубопроводах |
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|
м3/час |
л/мин |
л/с |
Номинальный диаметр в дюймах и внутренний диаметр в мм |
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|
1/2" |
3/4" |
1" |
1 1/4" |
1 1/2" |
2" |
2 1/2" |
3" |
3 1/2" |
4" |
5" |
6" |
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|
0.6 |
10 |
0.16 |
0.855 9.910 |
0.470 2.407 |
0.292 0.784 |
|
|
|
|
|
|
|
|
|
|
0.9 |
15 |
0.25 |
1.282 20.11 |
0.705 4.862 |
0.438 1.570 |
0.249 0.416 |
|
|
|
|
|
|
|
|
|
1.2 |
20 |
0.33 |
1.710 33.53 |
0.940 8.035 |
0.584 2.588 |
0.331 0.677 |
0.249 0.346 |
|
|
|
|
|
|
|
|
1.5 |
25 |
0.42 |
2.138 49.93 |
1.174 11.91 |
0.730 3.834 |
0.415 1.004 |
0.312 0.510 |
|
|
|
|
|
|
|
|
1.8 |
30 |
0.50 |
2.565 69.34 |
1.409 16.50 |
0.876 5.277 |
0.498 1.379 |
0.374 0.700 |
0.231 0.223 |
|
|
|
|
|
|
|
2.1 |
35 |
0.58 |
2.993 91.54 |
1.644 21.75 |
1.022 6.949 |
0.581 1.811 |
0.436 0.914 |
0.269 0.291 |
|
|
|
|
|
|
|
2.4 |
40 |
0.67 |
|
1.879 27.66 |
1.168 8.820 |
0.664 2.290 |
0.499 1.160 |
0.308 0.368 |
|
|
|
|
|
|
|
3.0 |
50 |
0.83 |
|
2.349 41.40 |
1.460 13.14 |
0.830 3.403 |
0.623 1.719 |
0.385 0.544 |
0.229 0.159 |
|
|
|
|
|
|
3.6 |
60 |
1.00 |
|
2.819 57.74 |
1.751 18.28 |
0.996 4.718 |
0.748 2.375 |
0.462 0.751 |
0.275 0.218 |
|
|
|
|
|
|
4.2 |
70 |
1.12 |
|
3.288 76.49 |
2.043 24.18 |
1.162 6.231 |
0.873 3.132 |
0.539 0.988 |
0.321 0.287 |
0.231 0.131 |
|
|
|
|
|
4.8 |
80 |
1.33 |
|
|
2.335 30.87 |
1.328 7.940 |
0.997 3.988 |
0.616 1.254 |
0.367 0.363 |
0.263 6.164 |
|
|
|
|
|
5.4 |
90 |
1.50 |
|
|
2.627 38.30 |
1.494 9.828 |
1.122 4.927 |
0.693 1.551 |
0.413 0.449 |
0.269 0.203 |
|
|
|
|
|
6.0 |
100 |
1.67 |
|
|
2.919 46.49 |
1.660 11.90 |
1.247 5.972 |
0.770 1.875 |
0.459 0.542 |
0.329 0.244 |
0.248 0.124 |
|
|
|
|
7.5 |
125 |
2.08 |
|
|
3.649 70.41 |
2.075 17.93 |
1.558 8.967 |
0.962 2.802 |
0.574 0.809 |
0.412 0.365 |
0.310 0.185 |
0.241 0.101 |
|
|
|
9.0 |
150 |
2.50 |
|
|
|
2.490 25.11 |
1.870 12.53 |
1.154 3.903 |
0.668 1.124 |
0.494 0.506 |
0.372 0.256 |
0.289 0.140 |
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|
|
10.5 |
175 |
2.92 |
|
|
|
2.904 33.32 |
2.182 16.66 |
1.347 5.179 |
0.803 1.488 |
0.576 0.670 |
0.434 0.338 |
0.337 0.184 |
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|
|
12 |
200 |
3.33 |
|
|
|
3.319 42.75 |
2.493 21.36 |
1.539 6.624 |
0.918 1.901 |
0.659 0.855 |
0.496 0.431 |
0.385 0.234 |
0.251 0.084 |
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|
15 |
250 |
4.17 |
|
|
|
4.149 64.86 |
3.117 32.32 |
1.924 10.03 |
1.147 2.860 |
0.823 1.282 |
0.620 0.646 |
0.481 0.350 |
0.314 0.126 |
|
|
18 |
300 |
5.00 |
|
|
|
|
3.740 45.52 |
2.309 14.04 |
1.377 4.009 |
0.988 1.792 |
0.744 0.903 |
0.577 0.488 |
0.377 0.175 |
0.263 0.074 |
|
24 |
400 |
6.67 |
|
|
|
|
4.987 78.17 |
3.078 24.04 |
1.836 6.828 |
1.317 3.053 |
0.992 1.530 |
0.50 0.829 |
0.502 0.294 |
0.351 0.124 |
|
30 |
500 |
8.33 |
|
|
|
|
|
3.848 36.71 |
2.295 10.40 |
1.647 4.622 |
1.240 2.315 |
0.962 1.254 |
0.628 0.445 |
0.439 0.187 |
|
36 |
600 |
10.0 |
|
|
|
|
|
4.618 51.84 |
2.753 14.62 |
1.976 6.505 |
1.488 3.261 |
1.155 1.757 |
0.753 0.623 |
0.526 0.260 |
|
42 |
700 |
11.7 |
|
|
|
|
|
|
3.212 19.52 |
2.306 8.693 |
1.736 4.356 |
1.347 2.345 |
0.879 0.831 |
0.614 0.347 |
|
48 |
800 |
13.3 |
|
|
|
|
|
|
3.671 25.20 |
2.635 11.18 |
1.984 5.582 |
1.005 3.009 |
1.005 1.066 |
0.702 0.445 |
|
54 |
900 |
15.0 |
|
|
|
|
|
|
4.130 31.51 |
2.964 13.97 |
2.232 6.983 |
1.732 3.762 |
1.130 1.328 |
0.790 0.555 |
|
60 |
1000 |
16.7 |
|
|
|
|
|
|
4.589 38.43 |
3.294 17.06 |
2.480 8.521 |
1.925 4.595 |
1.256 1.616 |
0.877 0.674 |
|
75 |
1250 |
20.8 |
|
|
|
|
|
|
|
4.117 26.10 |
3.100 13.00 |
2.406 7.010 |
1.570 2.458 |
1.097 1.027 |
|
90 |
1500 |
25.0 |
|
|
|
|
|
|
|
4.941 36.97 |
3.720 18.42 |
2.887 9.892 |
1.883 3.468 |
1.316 1.444 |
|
105 |
1750 |
29.2 |
|
|
|
|
|
|
|
|
4.340 24.76 |
3.368 13.30 |
2.197 4.665 |
1.535 1.934 |
|
120 |
2000 |
33.3 |
|
|
|
|
|
|
|
|
4.960 31.94 |
3.850 17.16 |
2.511 5.995 |
1.754 2.496 |
|
150 |
2500 |
41.7 |
|
|
|
|
|
|
|
|
|
4.812 26.26 |
3.139 9.216 |
2.193 3.807 |
|
180 |
3000 |
50.0 |
|
|
|
|
|
|
|
|
|
|
3.767 13.05 |
2.632 5.417 |
|
240 |
4000 |
66.7 |
|
|
|
|
|
|
|
|
|
|
5.023 22.72 |
3.509 8.926 |
|
300 |
5000 |
83.3 |
|
|
|
|
|
|
|
|
|
|
|
4.386 14.42 |
|
90° - колено, запорная задвижка |
1.0 |
1.0 |
1.01 |
1.2 |
1.3 |
1.4 |
1.5 |
1.6 |
1.6 |
1.7 |
2.0 |
2.5 |
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|
Тройники, обратные клапаны |
4.0 |
4.0 |
4.0 |
5.0 |
5.0 |
5.0 |
6.0 |
6.0 |
6.0 |
7.0 |
8.0 |
9.0 |
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Таблица рассчитана по новой формуле Г. Ланга с величиной а = 0,02 при температуре воды 10° С.
Потеря напора в коленах, запорных задвижках, тройниках и обратных клапанах соответствует длине прямого трубопровода, как указано в обеих последних строчках таблицы. Потеря напора в приемных клапанах соответствует двойной потере в тройнике.
Потери напора в трубопроводах из полимерных материалов
В таблице выделенным шрифтом обозначены скорости протекания потока в м/с, а обычным — потери напора в метрах на 100 м прямого трубопровода.
|
Расход |
PELM/PEHPN 10 |
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|
м3/час |
л/мин |
л/с |
PELM |
РЕН |
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|
25 |
32 |
40 |
50 |
63 |
75 |
90 |
110 |
125 |
140 |
160 |
180 |
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|
0.6 |
10 |
0.16 |
0.49 1.8 |
0.30 0.66 |
0.19 0.27 |
0.12 0.085 |
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|
0.9 |
15 |
0.25 |
0.76 4.0 |
0.46 1.14 |
0.3 0.6 |
0.19 0.18 |
0.12 0.63 |
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|
1.2 |
20 |
0.33 |
1.0 6.4 |
0.61 2.2 |
0.39 0.9 |
0.25 0.28 |
0.16 0.11 |
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|
1.5 |
25 |
0.42 |
1.3 10.0 |
0.78 3.5 |
0.5 1.4 |
0.32 0.43 |
0.2 0.17 |
0.14 0.074 |
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|
1.8 |
30 |
0.50 |
1.53 13.0 |
0.93 4.6 |
0.6 1.9 |
0.38 0.57 |
0.24 0.22 |
0.17 0.092 |
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|
2.1 |
35 |
0.58 |
1.77 16.0 |
1.08 6.0 |
0.69 2.0 |
0.44 0.70 |
0.28 0.27 |
0.2 0.12 |
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|
2.4 |
40 |
0.67 |
2.05 22.0 |
1.24 7.5 |
0.80 3.3 |
0.51 0.93 |
0.32 0.35 |
0.23 0.16 |
0.16 0.063 |
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|
3.0 |
50 |
0.83 |
2.54 37.0 |
1.54 11.0 |
0.99 4.8 |
0.63 0.500 |
0.4 0.50 |
0.28 0.22 |
0.2 0.09 |
|||||
|
3.6 |
60 |
1.00 |
3.06 43.0 |
1.85 15.0 |
1.2 6.5 |
0.76 1.90 |
0.48 0.320 |
0.34 0.32 |
0.24 0.13 |
0.16 0.050 |
||||
|
4.2 |
70 |
1.12 |
3.43 50.0 |
2.08 18.0 |
1.34 8.0 |
0.86 2.50 |
0.54 0.83 |
0.38 0.38 |
0.26 0.17 |
0.18 0.068 |
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|
4.8 |
80 |
1.33 |
2.47 25.0 |
1.59 10.5 |
1.02 3.00 |
0.64 0.50 |
0.45 0.50 |
0.31 0.22 |
0.2 0.084 |
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|
5.4 |
90 |
1.50 |
2.78 30.0 |
1.8 12.0 |
1.15 3.50 |
0.72 3.50 |
0.51 0.57 |
0.35 0.26 |
0.24 0.092 |
0.18 0.05 |
||||
|
6.0 |
100 |
1.67 |
3.1 39.0 |
2.0 16.0 |
1.28 4.6 |
0.8 1.80 |
0.56 0.73 |
0.39 0.730 |
0.26 0.12 |
0.2 0.07 |
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|
7.5 |
125 |
2.08 |
3.86 50.0 |
2.49 24.0 |
1.59 6.6 |
1.00 2.50 |
0.70 1.10 |
0.49 0.10 |
0.33 0.18 |
0.25 0.10 |
0.20 0.055 |
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|
9.0 |
150 |
2.50 |
3.00 33.0 |
1.91 8.6 |
1.20 3.5 |
0.84 1.40 |
0.59 0.63 |
0.39 0.24 |
0.30 0.13 |
0.24 0.075 |
||||
|
10.5 |
175 |
2.92 |
3.5 38.0 |
2.23 11.0 |
1.41 4.3 |
0.99 1.80 |
0.69 0.78 |
0.46 0.30 |
0.36 0.18 |
0.28 0.09 |
||||
|
12 |
200 |
3.33 |
3.99 50.0 |
2.55 14.0 |
1.60 5.5 |
1.12 2.40 |
0.78 14.0 |
0.52 014.0 |
0.41 0.22 |
0.32 0.12 |
0.25 0.065 |
|||
|
15 |
250 |
4.17 |
3.19 21.0 |
2.01 8.0 |
1.41 3.70 |
0.98 1050 |
0.66 0.57 |
0.51 0.34 |
0.40 0.18 |
0.31 0.105 |
0.25 0.06 |
|||
|
18 |
300 |
5.00 |
3.82 28.0 |
2.41 10.5 |
1.69 4.60 |
1.18 1.95 |
0.78 0.77 |
0.61 0.45 |
0.48 0.25 |
0.37 0.13 |
0.29 0.085 |
|||
|
24 |
400 |
6.67 |
3.21 19.0 |
2.25 8.0 |
1.57 3.60 |
1.05 1.40 |
0.81 0.78 |
0.65 0.44 |
0.50 0.23 |
0.39 0.15 |
||||
|
30 |
500 |
8.33 |
4.01 28.0 |
2.81 11.5 |
1.96 5.0 |
1.1 2.0 |
1.02 1.20 |
0.81 0.63 |
0.62 0.33 |
0.49 0.21 |
||||
|
36 |
600 |
10.0 |
4.82 37.0 |
3.38 15.0 |
2.35 6.6 |
1.57 2.60 |
1.22 1.50 |
0.97 0.82 |
0.74 0.45 |
0.59 0.28 |
||||
|
42 |
700 |
11.7 |
5.64 47.0 |
3.95 24.0 |
2.75 8.0 |
1.84 3.50 |
1.43 1.90 |
1.13 1.10 |
0.87 0.60 |
0.69 0.40 |
||||
|
48 |
800 |
13.3 |
4.49 26.0 |
3.13 11.0 |
2.09 4.5 |
1.62 2.60 |
1.29 1.40 |
0.99 0.81 |
0.78 0.48 |
|||||
|
54 |
900 |
15.0 |
5.07 33.0 |
3.53 13.5 |
2.36 5.5 |
1.83 3.20 |
1.45 1.70 |
1.12 0.95 |
0.08 0.58 |
|||||
|
60 |
1000 |
16.7 |
5.64 40.0 |
3.93 16.0 |
2.63 6.7 |
2.04 3.90 |
1.62 2.2 |
1.24 1.2 |
0.96 0.75 |
|||||
|
75 |
1250 |
20.8 |
4.89 25.0 |
3.27 9.0 |
2.54 5.0 |
2.02 3.0 |
1.55 1.6 |
1.22 0.95 |
||||||
|
90 |
1500 |
25.0 |
5.88 33.0 |
3.93 13.0 |
3.05 8.0 |
2.42 4.1 |
1.86 2.3 |
1.47 1.40 |
||||||
|
105 |
1750 |
29.2 |
6.86 44.0 |
4.59 17.5 |
3.56 9.7 |
2.83 5.7 |
2.17 3.2 |
1.72 1.9 |
||||||
|
120 |
2000 |
33.3 |
5.23 23.0 |
4.06 13.0 |
3.23 7.0 |
2.48 4.0 |
1.96 2.4 |
|||||||
|
150 |
2500 |
41.7 |
6.55 34.0 |
5.08 18.0 |
4.04 10.5 |
3.10 6.0 |
2.45 3.5 |
|||||||
|
180 |
3000 |
50.0 |
7.86 45.0 |
6.1 27.0 |
4.85 14.0 |
3.72 7.6 |
2.94 4.7 |
|||||||
|
240 |
4000 |
66.7 |
8.13 43.0 |
6.47 24.0 |
4.96 13.0 |
3.92 7.5 |
||||||||
|
300 |
5000 |
83.3 |
8.08 33.0 |
6.2 18.0 |
4.89 11.0 |
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Таблица основывается на диаграмме. Шероховатость: К = 0,01 мм Температура воды t =10° С