计算条件:空调水管外径为d1(mm),保温材料厚度为δ(mm),保温后管外径为d2(mm)= (d1+2δ),计算管长为l(m), d1n 为管道公称直径(mm),d1w为管外径(mm);
保温材料体积计算公式为: 每1000米长管道在不同保温厚度时所用的保温材料体积V(m3)速查表
| δd1n d1w | 20 | 25 | 30 | 35 | 40 | 45 | 50 | 55 | 60 | 65 | |
| 15 | 21.3 | 2.59 | 3. | 4.83 | 6.19 | 7.70 | 9.37 | 11.20 | 13.18 | 15.32 | 17.62 |
| 20 | 26.8 | 2.94 | 4.07 | 5.35 | 6.79 | 8.39 | 10.15 | 12.06 | 14.13 | 16.36 | 18.74 |
| 25 | 33.5 | 3.36 | 4.59 | 5.98 | 7.53 | 9.23 | 11.09 | 13.11 | 15.29 | 17.62 | 20.11 |
| 32 | 42.3 | 3.91 | 5.28 | 6.81 | 8.50 | 10.34 | 12.34 | 14.49 | 16.81 | 19.28 | 21.90 |
| 40 | 48 | 4.27 | 5.73 | 7.35 | 9.12 | 11.05 | 13.14 | 15.39 | 17.79 | 20.35 | 23.07 |
| 50 | 57 | 4.84 | 6.44 | 8.20 | 10.11 | 12.18 | 14.41 | 16.80 | 19.34 | 22.05 | 24.90 |
| 65 | 73 | 5.84 | 7.69 | 9.70 | 11.87 | 14.19 | 16.67 | 19.31 | 22.11 | 25.06 | 28.17 |
| 80 | 6.85 | 8.95 | 11.21 | 13.63 | 16.20 | 18.94 | 21.82 | 24.87 | 28.07 | 31.43 | |
| 100 | 108 | 8.04 | 10.44 | 13.00 | 15.72 | 18.59 | 21.62 | 24.81 | 28.15 | 31.65 | 35.31 |
| 125 | 133 | 9.61 | 12.40 | 15.36 | 18.46 | 21.73 | 18.79 | 28.73 | 32.47 | 36.36 | 40.41 |
| 150 | 159 | 11.24 | 14.44 | 17.80 | 21.32 | 25.00 | 28.83 | 32.81 | 36.96 | 41.26 | 45.72 |
| 200 | 219 | 15.01 | 19.15 | 23.46 | 27.92 | 32.53 | 37.30 | 42.23 | 47.32 | 52.56 | 57.97 |
| 250 | 273 | 18.40 | 23.39 | 28.54 | 33.85 | 39.31 | 44.94 | 50.71 | 56.65 | 62.74 | 68.99 |
| 300 | 325 | 21.67 | 27.48 | 33.44 | 39.57 | 45.85 | 52.28 | 58.88 | 65.63 | 72.54 | 79.60 |
| 350 | 377 | 24.93 | 31.56 | 38.34 | 45.28 | 52.38 | 59.63 | 67.04 | 74.61 | 82.33 | 90.21 |
| 400 | 426 | 28.01 | 35.41 | 42.96 | 50.67 | 58.53 | 66.56 | 74.73 | 83.07 | 91.57 | 100.22 |
| 450 | 478 | 31.27 | 39.49 | 47.85 | 56.38 | 65.06 | 73.90 | 82.90 | 92.05 | 101.36 | 110.83 |
| 500 | 529 | 34.48 | 43.49 | 52.66 | 61.99 | 71.47 | 81.11 | 90.90 | 100.86 | 110.97 | 121.24 |
| 600 | 630 | 40.82 | 51.42 | 62.17 | 73.09 | 84.15 | 95.38 | 106.76 | 118.30 | 130.00 | 141.85 |
| 700 | 720 | 46.47 | 58.48 | 70.65 | 82.98 | 95.46 | 108.10 | 120. | 133.85 | 146.96 | 160.22 |
| 800 | 820 | 52.75 | 66.33 | 80.07 | 93.97 | 108.02 | 122.23 | 136.59 | 151.11 | 165.80 | 180.63 |
| 900 | 920 | 59.03 | 74.18 | .49 | 104.96 | 120.58 | 136.36 | 152.29 | 168.38 | 184. | 201.04 |
| 1000 | 1020 | 65.31 | 82.03 | 98.91 | 115.95 | 133.14 | 150.49 | 167.99 | 185.65 | 203.48 | 221.45 |
| 1200 | 1220 | 77.87 | 97.73 | 117.75 | 137.93 | 158.26 | 178.75 | 199.39 | 220.19 | 241.16 | 262.27 |
保温管快速计算立方:(直径+厚度)x3.145x厚度x数量
例:问保温材料体积计算表中DN65钢管,外径73,实用中DN70钢管,外径76,请问保温材料体积怎麽计算?
答:( 0.76+0.20)x3.145x0.20x数量