| 序號 | 管徑 | 長(cháng)度 | 管道實(shí)際外徑 | 保冷層外徑 | 環(huán)境溫度 | 露點(diǎn)溫度 | 管線(xiàn)溫度 | 導熱系數 | 表面對大氣換熱系數 | 表面熱損 | 保溫層厚度 |
| DN | m | mm | D1 | Ta | Td | Tf | k | a | w/m2 | δ | |
| 1 | DN10 | 1 | 16 | 196 | 31.4 | 27.03 | -196 | 0.0248 | 8.141 | -22.66 | 90 |
| 2 | DN15 | 1 | 18 | 198 | 31.4 | 27.03 | -162 | 0.0265 | 8.141 | -21.27 | 90 |
| 3 | DN20 | 1 | 25 | 205 | 31.4 | 27.03 | -162 | 0.0265 | 8.141 | -23.38 | 90 |
| 4 | DN25 | 1 | 32 | 212 | 31.4 | 27.03 | -162 | 0.0265 | 8.141 | -25.13 | 90 |
| 5 | DN32 | 1 | 38 | 218 | 31.4 | 27.03 | -162 | 0.0265 | 8.141 | -26.43 | 90 |
| 6 | DN40 | 1 | 45 | 225 | 31.4 | 27.03 | -162 | 0.0265 | 8.141 | -27.77 | 90 |
| 7 | DN50 | 1 | 57 | 237 | 31.4 | 27.03 | -162 | 0.0265 | 8.141 | -29.74 | 90 |
| 8 | DN65 | 1 | 76 | 256 | 31.4 | 27.03 | -162 | 0.0265 | 8.141 | -32.26 | 90 |
| 9 | DN80 | 1 | 89 | 269 | 31.4 | 27.03 | -162 | 0.0265 | 8.141 | -33.68 | 90 |
| 10 | DN100 | 1 | 108 | 348 | 31.4 | 27.03 | -162 | 0.0265 | 8.141 | -24.75 | 120 |
| 11 | DN125 | 1 | 133 | 373 | 31.4 | 27.03 | -162 | 0.0265 | 8.141 | -26.18 | 120 |
| 12 | DN150 | 1 | 159 | 399 | 31.4 | 27.03 | -162 | 0.0265 | 8.141 | -27.40 | 120 |
| 13 | DN200 | 1 | 219 | 519 | 31.4 | 27.03 | -162 | 0.0265 | 8.141 | -22.54 | 150 |
| 14 | DN250 | 1 | 273 | 573 | 31.4 | 27.03 | -162 | 0.0265 | 8.141 | -23.74 | 150 |
| 15 | DN300 | 1 | 324 | 624 | 31.4 | 27.03 | -162 | 0.0265 | 8.141 | -24.64 | 150 |
