点击下列目录跳转:
不同冷热量及流量的水管比摩阻查询(10℃、20℃、25℃温差)
本表管材选择:管径≤DN50时采用镀锌钢管接;管径>DN50采用无缝钢管。
比摩阻可控制在100~300Pa/m,不应大于400Pa/m,管径较大时宜取低限值。本表按比摩阻≤200Pa/m选型管道。
3℃温差 | 5℃温差 | 7℃温差 | |||||||||||||||||
冷/热量 | 水流量 | 管径 | 内径 | 流速 | 比摩阻 | 冷/热量 | 水流量 | 管径 | 内径 | 流速 | 比摩阻 | 冷/热量 | 水流量 | 管径 | 内径 | 流速 | 比摩阻 | ||
kW | m³/h | DN | mm | m/s | Pa/m | kW | m³/h | DN | mm | m/s | Pa/m | kW | m³/h | DN | mm | m/s | Pa/m | ||
1 | 0.29 | 20 | 21.3 | 0.22 | 54.2 | 1 | 0.17 | 15 | 15.7 | 0.25 | 93.0 | 1 | 0.12 | 15 | 15.7 | 0.18 | 49.9 | ||
2 | 0.57 | 20 | 21.3 | 0.45 | 195.2 | 2 | 0.34 | 20 | 21.3 | 0.27 | 75.9 | 2 | 0.25 | 20 | 21.3 | 0.19 | 40.7 | ||
3 | 0.86 | 25 | 27.3 | 0.41 | 123.4 | 3 | 0.52 | 20 | 21.3 | 0.40 | 160.7 | 3 | 0.37 | 20 | 21.3 | 0.29 | 86.2 | ||
5 | 1.44 | 32 | 35.4 | 0.41 | 89.6 | 5 | 0.86 | 25 | 27.3 | 0.41 | 123.4 | 5 | 0.62 | 25 | 27.3 | 0.29 | 66.2 | ||
6 | 1.72 | 32 | 35.4 | 0.49 | 125.5 | 6 | 1.03 | 25 | 27.3 | 0.49 | 172.9 | 6 | 0.74 | 25 | 27.3 | 0.35 | 92.8 | ||
7 | 2.01 | 32 | 35.4 | 0.57 | 167.0 | 7 | 1.21 | 32 | 35.4 | 0.34 | 64.9 | 7 | 0.86 | 25 | 27.3 | 0.41 | 123.4 | ||
8 | 2.30 | 40 | 41.3 | 0.48 | 100.9 | 8 | 1.38 | 32 | 35.4 | 0.39 | 83.1 | 8 | 0.98 | 25 | 27.3 | 0.47 | 158.0 | ||
9 | 2.58 | 40 | 41.3 | 0.54 | 125.5 | 9 | 1.55 | 32 | 35.4 | 0.44 | 103.3 | 9 | 1.11 | 32 | 35.4 | 0.31 | 55.4 | ||
10 | 2.87 | 40 | 41.3 | 0.60 | 152.5 | 10 | 1.72 | 32 | 35.4 | 0.49 | 125.5 | 10 | 1.23 | 32 | 35.4 | 0.35 | 67.4 | ||
15 | 4.31 | 50 | 52.7 | 0.55 | 98.5 | 15 | 2.58 | 40 | 41.3 | 0.54 | 125.5 | 15 | 1.85 | 32 | 35.4 | 0.52 | 142.6 | ||
20 | 5.74 | 50 | 52.7 | 0.73 | 167.7 | 20 | 3.44 | 50 | 52.7 | 0.44 | 65.2 | 20 | 2.46 | 40 | 41.3 | 0.51 | 114.6 | ||
25 | 7.18 | 65 | 69 | 0.53 | 68.2 | 25 | 4.31 | 50 | 52.7 | 0.55 | 98.5 | 25 | 3.08 | 50 | 52.7 | 0.39 | 52.9 | ||
30 | 8.61 | 65 | 69 | 0.64 | 95.6 | 30 | 5.17 | 50 | 52.7 | 0.66 | 138.0 | 30 | 3.69 | 50 | 52.7 | 0.47 | 74.1 | ||
35 | 10.05 | 65 | 69 | 0.75 | 127.1 | 35 | 6.03 | 50 | 52.7 | 0.77 | 183.5 | 35 | 4.31 | 50 | 52.7 | 0.55 | 98.5 | ||
40 | 11.48 | 65 | 69 | 0.85 | 162.7 | 40 | 6.89 | 65 | 69 | 0.51 | 63.2 | 40 | 4.92 | 50 | 52.7 | 0.63 | 126.1 | ||
45 | 12.92 | 80 | 81 | 0.70 | 92.7 | 45 | 7.75 | 65 | 69 | 0.58 | 78.6 | 45 | 5.54 | 50 | 52.7 | 0.71 | 156.8 | ||
50 | 14.35 | 80 | 81 | 0.77 | 112.6 | 50 | 8.61 | 65 | 69 | 0.64 | 95.6 | 50 | 6.15 | 65 | 69 | 0.46 | 51.3 | ||
75 | 21.53 | 100 | 100 | 0.76 | 85.5 | 75 | 12.92 | 80 | 81 | 0.70 | 92.7 | 75 | 9.23 | 65 | 69 | 0.69 | 108.6 | ||
100 | 28.71 | 100 | 100 | 1.02 | 145.5 | 100 | 17.22 | 80 | 81 | 0.93 | 157.8 | 100 | 12.30 | 80 | 81 | 0.66 | 84.7 | ||
125 | 35.89 | 125 | 125 | 0.81 | 74.2 | 125 | 21.53 | 100 | 100 | 0.76 | 85.5 | 125 | 15.38 | 80 | 81 | 0.83 | 128.0 | ||
150 | 43.06 | 125 | 125 | 0.97 | 103.9 | 150 | 25.84 | 100 | 100 | 0.91 | 119.7 | 150 | 18.46 | 100 | 100 | 0.65 | 64.2 | ||
175 | 50.24 | 125 | 125 | 1.14 | 138.2 | 175 | 30.14 | 100 | 100 | 1.07 | 159.2 | 175 | 21.53 | 100 | 100 | 0.76 | 85.5 | ||
200 | 57.42 | 125 | 125 | 1.30 | 176.9 | 200 | 34.45 | 125 | 125 | 0.78 | 68.8 | 200 | 24.61 | 100 | 100 | 0.87 | 109.4 | ||
250 | 71.77 | 150 | 150 | 1.13 | 110.0 | 250 | 43.06 | 125 | 125 | 0.97 | 103.9 | 250 | 30.76 | 100 | 100 | 1.09 | 165.3 | ||
300 | 86.12 | 150 | 150 | 1.35 | 154.2 | 300 | 51.67 | 125 | 125 | 1.17 | 145.6 | 300 | 36.91 | 125 | 125 | 0.84 | 78.1 | ||
350 | 100.48 | 150 | 150 | 1.58 | 205.0 | 350 | 60.29 | 150 | 150 | 0.95 | 79.7 | 350 | 43.06 | 125 | 125 | 0.97 | 103.9 | ||
400 | 114.83 | 200 | 207 | 0.95 | 54.7 | 400 | 68.90 | 150 | 150 | 1.08 | 102.0 | 400 | 49.21 | 125 | 125 | 1.11 | 133.0 | ||
450 | 129.19 | 200 | 207 | 1.07 | 68.0 | 450 | 77.51 | 150 | 150 | 1.22 | 126.9 | 450 | 55.37 | 125 | 125 | 1.25 | 165.4 | ||
500 | 143.54 | 200 | 207 | 1.18 | 82.6 | 500 | 86.12 | 150 | 150 | 1.35 | 154.2 | 500 | 61.52 | 150 | 150 | 0.97 | 82.7 | ||
600 | 172.25 | 200 | 207 | 1.42 | 115.8 | 600 | 103.35 | 200 | 207 | 0.85 | 45.0 | 600 | 73.82 | 150 | 150 | 1.16 | 115.9 | ||
700 | 200.96 | 200 | 207 | 1.66 | 154.0 | 700 | 120.57 | 200 | 207 | 1.00 | 59.9 | 700 | 86.12 | 150 | 150 | 1.35 | 154.2 | ||
800 | 229.67 | 200 | 207 | 1.90 | 197.1 | 800 | 137.80 | 200 | 207 | 1.14 | 76.6 | 800 | 98.43 | 200 | 207 | 0.81 | 41.1 | ||
900 | 258.37 | 250 | 259 | 1.36 | 82.3 | 900 | 155.02 | 200 | 207 | 1.28 | 95.3 | 900 | 110.73 | 200 | 207 | 0.91 | 51.1 | ||
1000 | 287.08 | 250 | 259 | 1.51 | 100.0 | 1000 | 172.25 | 200 | 207 | 1.42 | 115.8 | 1000 | 123.03 | 200 | 207 | 1.02 | 62.1 | ||
1200 | 344.50 | 250 | 259 | 1.82 | 140.1 | 1200 | 206.70 | 250 | 259 | 1.09 | 54.5 | 1200 | 147.64 | 200 | 207 | 1.22 | 87.1 | ||
1400 | 401.91 | 250 | 259 | 2.12 | 186.4 | 1400 | 241.15 | 250 | 259 | 1.27 | 72.4 | 1400 | 172.25 | 200 | 207 | 1.42 | 115.8 | ||
1600 | 459.33 | 300 | 309 | 1.70 | 101.0 | 1600 | 275.60 | 250 | 259 | 1.45 | 92.7 | 1600 | 196.86 | 250 | 259 | 1.04 | 49.8 | ||
1800 | 516.75 | 300 | 309 | 1.91 | 125.6 | 1800 | 310.05 | 250 | 259 | 1.63 | 115.3 | 1800 | 221.46 | 250 | 259 | 1.17 | 61.9 | ||
2000 | 574.16 | 300 | 309 | 2.13 | 152.6 | 2000 | 344.50 | 250 | 259 | 1.82 | 140.1 | 2000 | 246.07 | 250 | 259 | 1.30 | 75.2 | ||
2500 | 717.70 | 350 | 359 | 1.97 | 111.1 | 2500 | 430.62 | 300 | 309 | 1.60 | 89.6 | 2500 | 307.59 | 250 | 259 | 1.62 | 113.6 | ||
3000 | 861.24 | 350 | 359 | 2.36 | 155.7 | 3000 | 516.75 | 300 | 309 | 1.91 | 125.6 | 3000 | 369.10 | 300 | 309 | 1.37 | 67.4 | ||
3500 | 1004.78 | 400 | 406 | 2.16 | 113.7 | 3500 | 602.87 | 350 | 359 | 1.65 | 80.5 | 3500 | 430.62 | 300 | 309 | 1.60 | 89.6 | ||
4000 | 1148.33 | 400 | 406 | 2.46 | 145.6 | 4000 | 689.00 | 400 | 406 | 1.48 | 56.6 | 4000 | 492.14 | 300 | 309 | 1.82 | 114.8 | ||
4500 | 1291.87 | 400 | 406 | 2.77 | 181.0 | 4500 | 775.12 | 400 | 406 | 1.66 | 70.4 | 4500 | 553.66 | 350 | 359 | 1.52 | 68.7 | ||
5000 | 1435.41 | 450 | 460 | 2.40 | 119.8 | 5000 | 861.24 | 400 | 406 | 1.85 | 85.5 | 5000 | 615.17 | 350 | 359 | 1.69 | 83.5 | ||
6000 | 1722.49 | 450 | 460 | 2.88 | 167.8 | 6000 | 1033.49 | 400 | 406 | 2.22 | 119.8 | 6000 | 738.21 | 350 | 359 | 2.03 | 117.0 | ||
7000 | 2009.57 | 500 | 510 | 2.73 | 135.0 | 7000 | 1205.74 | 450 | 460 | 2.02 | 86.7 | 7000 | 861.24 | 400 | 406 | 1.85 | 85.5 | ||
8000 | 2296.65 | 500 | 510 | 3.12 | 172.9 | 8000 | 1377.99 | 450 | 460 | 2.30 | 111.1 | 8000 | 984.28 | 400 | 406 | 2.11 | 109.5 | ||
9000 | 2583.73 | 500 | 510 | 3.51 | 214.9 | 9000 | 1550.24 | 500 | 510 | 2.11 | 83.5 | 9000 | 1107.31 | 450 | 460 | 1.85 | 74.1 | ||
10000 | 2870.81 | 500 | 510 | 3.90 | 261.2 | 10000 | 1722.49 | 500 | 510 | 2.34 | 101.5 | 10000 | 1230.35 | 450 | 460 | 2.06 | 90.0 |
本表管材选择:管径≤DN50时采用镀锌钢管接;管径>DN50采用无缝钢管。
比摩阻可控制在100~300Pa/m,不应大于400Pa/m,管径较大时宜取低限值。本表按比摩阻≤200Pa/m选型管道。
10℃温差 | 20℃温差 | 25℃温差 | |||||||||||||||||
冷/热量 | 水流量 | 管径 | 内径 | 流速 | 比摩阻 | 冷/热量 | 水流量 | 管径 | 内径 | 流速 | 比摩阻 | 冷/热量 | 水流量 | 管径 | 内径 | 流速 | 比摩阻 | ||
kW | m³/h | DN | mm | m/s | Pa/m | kW | m³/h | DN | mm | m/s | Pa/m | kW | m³/h | DN | mm | m/s | Pa/m | ||
1 | 0.09 | 15 | 15.7 | 0.12 | 25.8 | 1 | 0.04 | 15 | 15.7 | 0.06 | 7.2 | 1 | 0.03 | 15 | 15.7 | 0.05 | 4.7 | ||
2 | 0.17 | 15 | 15.7 | 0.25 | 93.0 | 2 | 0.09 | 15 | 15.7 | 0.12 | 25.8 | 2 | 0.07 | 15 | 15.7 | 0.10 | 17.1 | ||
3 | 0.26 | 15 | 15.7 | 0.37 | 196.9 | 3 | 0.13 | 15 | 15.7 | 0.19 | 54.6 | 3 | 0.10 | 15 | 15.7 | 0.15 | 36.1 | ||
5 | 0.43 | 15 | 15.7 | 0.62 | 506.5 | 5 | 0.22 | 15 | 15.7 | 0.31 | 140.5 | 5 | 0.17 | 15 | 15.7 | 0.25 | 93.0 | ||
6 | 0.52 | 20 | 21.3 | 0.40 | 160.7 | 6 | 0.26 | 20 | 21.3 | 0.20 | 44.6 | 6 | 0.21 | 15 | 15.7 | 0.30 | 130.3 | ||
7 | 0.60 | 25 | 27.3 | 0.29 | 63.8 | 7 | 0.30 | 20 | 21.3 | 0.23 | 59.3 | 7 | 0.24 | 15 | 15.7 | 0.35 | 173.3 | ||
8 | 0.69 | 25 | 27.3 | 0.33 | 81.7 | 8 | 0.34 | 20 | 21.3 | 0.27 | 75.9 | 8 | 0.28 | 20 | 21.3 | 0.21 | 50.2 | ||
9 | 0.78 | 25 | 27.3 | 0.37 | 101.6 | 9 | 0.39 | 20 | 21.3 | 0.30 | 94.4 | 9 | 0.31 | 20 | 21.3 | 0.24 | 62.4 | ||
10 | 0.86 | 25 | 27.3 | 0.41 | 123.4 | 10 | 0.43 | 20 | 21.3 | 0.34 | 114.7 | 10 | 0.34 | 20 | 21.3 | 0.27 | 75.9 | ||
15 | 1.29 | 32 | 35.4 | 0.36 | 73.7 | 15 | 0.65 | 25 | 27.3 | 0.31 | 72.5 | 15 | 0.52 | 20 | 21.3 | 0.40 | 160.7 | ||
20 | 1.72 | 32 | 35.4 | 0.49 | 125.5 | 20 | 0.86 | 25 | 27.3 | 0.41 | 123.4 | 20 | 0.69 | 25 | 27.3 | 0.33 | 81.7 | ||
25 | 2.15 | 32 | 35.4 | 0.61 | 189.7 | 25 | 1.08 | 32 | 35.4 | 0.30 | 52.6 | 25 | 0.86 | 25 | 27.3 | 0.41 | 123.4 | ||
30 | 2.58 | 40 | 41.3 | 0.54 | 125.5 | 30 | 1.29 | 32 | 35.4 | 0.36 | 73.7 | 30 | 1.03 | 25 | 27.3 | 0.49 | 172.9 | ||
35 | 3.01 | 40 | 41.3 | 0.63 | 166.9 | 35 | 1.51 | 32 | 35.4 | 0.43 | 98.1 | 35 | 1.21 | 32 | 35.4 | 0.34 | 64.9 | ||
40 | 3.44 | 50 | 52.7 | 0.44 | 65.2 | 40 | 1.72 | 32 | 35.4 | 0.49 | 125.5 | 40 | 1.38 | 32 | 35.4 | 0.39 | 83.1 | ||
45 | 3.88 | 50 | 52.7 | 0.49 | 81.1 | 45 | 1.94 | 32 | 35.4 | 0.55 | 156.1 | 45 | 1.55 | 32 | 35.4 | 0.44 | 103.3 | ||
50 | 4.31 | 50 | 52.7 | 0.55 | 98.5 | 50 | 2.15 | 40 | 41.3 | 0.45 | 89.5 | 50 | 1.72 | 32 | 35.4 | 0.49 | 125.5 | ||
75 | 6.46 | 50 | 52.7 | 0.82 | 208.5 | 75 | 3.23 | 50 | 52.7 | 0.41 | 57.8 | 75 | 2.58 | 40 | 41.3 | 0.54 | 125.5 | ||
100 | 8.61 | 65 | 69 | 0.64 | 95.6 | 100 | 4.31 | 50 | 52.7 | 0.55 | 98.5 | 100 | 3.44 | 50 | 52.7 | 0.44 | 65.2 | ||
125 | 10.77 | 65 | 69 | 0.80 | 144.4 | 125 | 5.38 | 50 | 52.7 | 0.69 | 148.8 | 125 | 4.31 | 50 | 52.7 | 0.55 | 98.5 | ||
150 | 12.92 | 65 | 69 | 0.96 | 202.3 | 150 | 6.46 | 65 | 69 | 0.48 | 56.1 | 150 | 5.17 | 50 | 52.7 | 0.66 | 138.0 | ||
175 | 15.07 | 80 | 81 | 0.81 | 123.3 | 175 | 7.54 | 65 | 69 | 0.56 | 74.7 | 175 | 6.03 | 50 | 52.7 | 0.77 | 183.5 | ||
200 | 17.22 | 80 | 81 | 0.93 | 157.8 | 200 | 8.61 | 65 | 69 | 0.64 | 95.6 | 200 | 6.89 | 65 | 69 | 0.51 | 63.2 | ||
250 | 21.53 | 100 | 100 | 0.76 | 85.5 | 250 | 10.77 | 65 | 69 | 0.80 | 144.4 | 250 | 8.61 | 65 | 69 | 0.64 | 95.6 | ||
300 | 25.84 | 100 | 100 | 0.91 | 119.7 | 300 | 12.92 | 80 | 81 | 0.70 | 92.7 | 300 | 10.33 | 65 | 69 | 0.77 | 133.9 | ||
350 | 30.14 | 100 | 100 | 1.07 | 159.2 | 350 | 15.07 | 80 | 81 | 0.81 | 123.3 | 350 | 12.06 | 65 | 69 | 0.90 | 178.1 | ||
400 | 34.45 | 100 | 100 | 1.22 | 203.9 | 400 | 17.22 | 80 | 81 | 0.93 | 157.8 | 400 | 13.78 | 80 | 81 | 0.74 | 104.4 | ||
450 | 38.76 | 125 | 125 | 0.88 | 85.5 | 450 | 19.38 | 100 | 100 | 0.69 | 70.3 | 450 | 15.50 | 80 | 81 | 0.84 | 129.9 | ||
500 | 43.06 | 125 | 125 | 0.97 | 103.9 | 500 | 21.53 | 100 | 100 | 0.76 | 85.5 | 500 | 17.22 | 80 | 81 | 0.93 | 157.8 | ||
600 | 51.67 | 125 | 125 | 1.17 | 145.6 | 600 | 25.84 | 100 | 100 | 0.91 | 119.7 | 600 | 20.67 | 100 | 100 | 0.73 | 79.2 | ||
700 | 60.29 | 125 | 125 | 1.36 | 193.6 | 700 | 30.14 | 100 | 100 | 1.07 | 159.2 | 700 | 24.11 | 100 | 100 | 0.85 | 105.4 | ||
800 | 68.90 | 150 | 150 | 1.08 | 102.0 | 800 | 34.45 | 125 | 125 | 0.78 | 68.8 | 800 | 27.56 | 100 | 100 | 0.97 | 134.9 | ||
900 | 77.51 | 150 | 150 | 1.22 | 126.9 | 900 | 38.76 | 125 | 125 | 0.88 | 85.5 | 900 | 31.00 | 100 | 100 | 1.10 | 167.8 | ||
1000 | 86.12 | 150 | 150 | 1.35 | 154.2 | 1000 | 43.06 | 125 | 125 | 0.97 | 103.9 | 1000 | 34.45 | 100 | 100 | 1.22 | 203.9 | ||
1200 | 103.35 | 200 | 207 | 0.85 | 45.0 | 1200 | 51.67 | 125 | 125 | 1.17 | 145.6 | 1200 | 41.34 | 125 | 125 | 0.94 | 96.4 | ||
1400 | 120.57 | 200 | 207 | 1.00 | 59.9 | 1400 | 60.29 | 150 | 150 | 0.95 | 79.7 | 1400 | 48.23 | 125 | 125 | 1.09 | 128.2 | ||
1600 | 137.80 | 200 | 207 | 1.14 | 76.6 | 1600 | 68.90 | 150 | 150 | 1.08 | 102.0 | 1600 | 55.12 | 125 | 125 | 1.25 | 164.1 | ||
1800 | 155.02 | 200 | 207 | 1.28 | 95.3 | 1800 | 77.51 | 150 | 150 | 1.22 | 126.9 | 1800 | 62.01 | 125 | 125 | 1.40 | 204.0 | ||
2000 | 172.25 | 200 | 207 | 1.42 | 115.8 | 2000 | 86.12 | 200 | 207 | 0.71 | 32.1 | 2000 | 68.90 | 150 | 150 | 1.08 | 102.0 | ||
2500 | 215.31 | 200 | 207 | 1.78 | 175.0 | 2500 | 107.66 | 200 | 207 | 0.89 | 48.5 | 2500 | 86.12 | 150 | 150 | 1.35 | 154.2 | ||
3000 | 258.37 | 250 | 259 | 1.36 | 82.3 | 3000 | 129.19 | 200 | 207 | 1.07 | 68.0 | 3000 | 103.35 | 200 | 207 | 0.85 | 45.0 | ||
3500 | 301.44 | 250 | 259 | 1.59 | 109.5 | 3500 | 150.72 | 200 | 207 | 1.24 | 90.4 | 3500 | 120.57 | 200 | 207 | 1.00 | 59.9 | ||
4000 | 344.50 | 250 | 259 | 1.82 | 140.1 | 4000 | 172.25 | 200 | 207 | 1.42 | 115.8 | 4000 | 137.80 | 200 | 207 | 1.14 | 76.6 | ||
4500 | 387.56 | 250 | 259 | 2.04 | 174.3 | 4500 | 193.78 | 250 | 259 | 1.02 | 48.3 | 4500 | 155.02 | 200 | 207 | 1.28 | 95.3 | ||
5000 | 430.62 | 300 | 309 | 1.60 | 89.6 | 5000 | 215.31 | 250 | 259 | 1.14 | 58.7 | 5000 | 172.25 | 200 | 207 | 1.42 | 115.8 | ||
6000 | 516.75 | 300 | 309 | 1.91 | 125.6 | 6000 | 258.37 | 250 | 259 | 1.36 | 82.3 | 6000 | 206.70 | 200 | 207 | 1.71 | 162.2 | ||
7000 | 602.87 | 300 | 309 | 2.23 | 167.1 | 7000 | 301.44 | 250 | 259 | 1.59 | 109.5 | 7000 | 241.15 | 250 | 259 | 1.27 | 72.4 | ||
8000 | 689.00 | 350 | 359 | 1.89 | 103.0 | 8000 | 344.50 | 300 | 309 | 1.28 | 59.3 | 8000 | 275.60 | 250 | 259 | 1.45 | 92.7 | ||
9000 | 775.12 | 350 | 359 | 2.13 | 128.1 | 9000 | 387.56 | 300 | 309 | 1.44 | 73.8 | 9000 | 310.05 | 250 | 259 | 1.63 | 115.3 | ||
10000 | 861.24 | 350 | 359 | 2.36 | 155.7 | 10000 | 430.62 | 300 | 309 | 1.60 | 89.6 | 10000 | 344.50 | 250 | 259 | 1.82 | 140.1 |