直埋蒸汽保温管的标准保温厚度 (CJ/T200-2000) T=200℃ | |||||||||
序号 | 公称直径 | D0 | lnDW=(45*lnD0+10.88or12.66)/52.35 σ=(DW-D0)/2 | DW | 保温厚度 σ | ||||
1 | DN50 | 45 | 0.057 | -2.8647 | 10.88 | 52.35 | -2.25466 | 0.104909 | 24.0 |
2 | DN70 | 45 | 0.076 | -2.57702 | 10.88 | 52.35 | -2.00737 | 0.134341 | 29.2 |
3 | DN80 | 45 | 0.089 | -2.41912 | 10.88 | 52.35 | -1.87164 | 0.153871 | 32.4 |
4 | DN100 | 45 | 0.108 | -2.22562 | 10.88 | 52.35 | -1.70531 | 0.181716 | 36.9 |
5 | DN125 | 45 | 0.133 | -2.01741 | 10.88 | 52.35 | -1.52633 | 0.217332 | 42.2 |
6 | DN150 | 45 | 0.159 | -1.83885 | 12.66 | 52.35 | -1.33884 | 0.262149 | 51.6 |
7 | DN200 | 45 | 0.219 | -1.51868 | 12.66 | 52.35 | -1.06362 | 0.345202 | 63.1 |
8 | DN250 | 45 | 0.273 | -1.29828 | 12.66 | 52.35 | -0.87417 | 0.417208 | 72.1 |
9 | DN300 | 45 | 0.325 | -1.12393 | 12.66 | 52.35 | -0.7243 | 0.484666 | 79.8 |
10 | DN350 | 45 | 0.377 | -0.97551 | 12.66 | 52.35 | -0.59671 | 0.550618 | 86.8 |
11 | DN400 | 45 | 0.426 | -0.85332 | 12.66 | 52.35 | -0.49168 | 0.611601 | 92.8 |
12 | DN450 | 45 | 0.478 | -0.73814 | 12.66 | 52.35 | -0.39267 | 0.675249 | 98.6 |
13 | DN500 | 45 | 0.53 | -0.63488 | 12.66 | 52.35 | -0.30391 | 0.73793 | 104.0 |
14 | DN600 | 45 | 0.63 | -0.46204 | 12.66 | 52.35 | -0.15533 | 0.856131 | 113.1 |
15 | DN700 | 45 | 0.72 | -0.3285 | 12.66 | 52.35 | -0.04055 | 0.960263 | 120.1 |
直埋蒸汽保温管的标准保温厚度 (CJ/T200-2000) T=250℃ | |||||||||
序号 | 公称直径 | D0 | lnDW=(45*lnD0+16or18.6)/55.8 σ=(DW-D0)/2 | DW | 保温厚度 σ | ||||
1 | DN50 | 45 | 0.057 | -2.8647 | 16 | 55.8 | -2.02351 | 0.132191 | 37.6 |
2 | DN70 | 45 | 0.076 | -2.57702 | 16 | 55.8 | -1.79151 | 0.166709 | 45.4 |
3 | DN80 | 45 | 0.089 | -2.41912 | 16 | 55.8 | -1.66416 | 0.189349 | 50.2 |
4 | DN100 | 45 | 0.108 | -2.22562 | 16 | 55.8 | -1.50812 | 0.221326 | 56.7 |
5 | DN125 | 45 | 0.133 | -2.01741 | 16 | 55.8 | -1.3402 | 0.261793 | 64.4 |
6 | DN150 | 45 | 0.159 | -1.83885 | 18.6 | 55.8 | -1.14961 | 0.31676 | 78.9 |
7 | DN200 | 45 | 0.219 | -1.51868 | 18.6 | 55.8 | -0.89141 | 0.410077 | 95.5 |
8 | DN250 | 45 | 0.273 | -1.29828 | 18.6 | 55.8 | -0.71367 | 0.489843 | 108.4 |
9 | DN300 | 45 | 0.325 | -1.12393 | 18.6 | 55.8 | -0.57306 | 0.563797 | 119.4 |
10 | DN350 | 45 | 0.377 | -0.97551 | 18.6 | 55.8 | -0.45337 | 0.635484 | 129.2 |
11 | DN400 | 45 | 0.426 | -0.85332 | 18.6 | 55.8 | -0.35482 | 0.701296 | 137.6 |
12 | DN450 | 45 | 0.478 | -0.73814 | 18.6 | 55.8 | -0.26194 | 0.769554 | 145.8 |
13 | DN500 | 45 | 0.53 | -0.63488 | 18.6 | 55.8 | -0.17867 | 0.836386 | 153.2 |
14 | DN600 | 45 | 0.63 | -0.46204 | 18.6 | 55.8 | -0.03928 | 0.961485 | 165.7 |
15 | DN700 | 45 | 0.72 | -0.3285 | 18.6 | 55.8 | 0.068411 | 1.070805 | 175.4 |
直埋蒸汽保温管的标准保温厚度 (CJ/T200-2000) T=300℃ | |||||||||
序号 | 公称直径 | D0 | lnDW=(45*lnD0+21.48or24.98)/59.5 σ=(DW-D0)/2 | DW | 保温厚度 σ | ||||
1 | DN50 | 45 | 0.057 | -2.8647 | 21.48 | 59.5 | -1.80557 | 0.16438 | 53.7 |
2 | DN70 | 45 | 0.076 | -2.57702 | 21.48 | 59.5 | -1.588 | 0.204334 | 64.2 |
3 | DN80 | 45 | 0.089 | -2.41912 | 21.48 | 59.5 | -1.46858 | 0.230253 | 70.6 |
4 | DN100 | 45 | 0.108 | -2.22562 | 21.48 | 59.5 | -1.32224 | 0.266538 | 79.3 |
5 | DN125 | 45 | 0.133 | -2.01741 | 21.48 | 59.5 | -1.16476 | 0.311997 | 89.5 |
6 | DN150 | 45 | 0.159 | -1.83885 | 24.98 | 59.5 | -0.9709 | 0.378744 | 109.9 |
7 | DN200 | 45 | 0.219 | -1.51868 | 24.98 | 59.5 | -0.72875 | 0.482511 | 131.8 |
8 | DN250 | 45 | 0.273 | -1.29828 | 24.98 | 59.5 | -0.56206 | 0.570032 | 148.5 |
9 | DN300 | 45 | 0.325 | -1.12393 | 24.98 | 59.5 | -0.4302 | 0.65038 | 162.7 |
10 | DN350 | 45 | 0.377 | -0.97551 | 24.98 | 59.5 | -0.31795 | 0.72764 | 175.3 |
11 | DN400 | 45 | 0.426 | -0.85332 | 24.98 | 59.5 | -0.22553 | 0.798091 | 186.0 |
12 | DN450 | 45 | 0.478 | -0.73814 | 24.98 | 59.5 | -0.13843 | 0.870725 | 196.4 |
13 | DN500 | 45 | 0.53 | -0.63488 | 24.98 | 59.5 | -0.06033 | 0.941456 | 205.7 |
14 | DN600 | 45 | 0.63 | -0.46204 | 24.98 | 59.5 | 0.070393 | 1.07293 | 221.5 |
15 | DN700 | 45 | 0.72 | -0.3285 | 24.98 | 59.5 | 0.171383 | 1.186946 | 233.5 |
直埋蒸汽保温管的标准保温厚度 (CJ/T200-2000) T=350℃ | |||||||||
序号 | 公称直径 | D0 | lnDW=(45*lnD0+28or32.5)/63.9 σ=(DW-D0)/2 | DW | 保温厚度 σ | ||||
1 | DN50 | 45 | 0.057 | -2.8647 | 28 | 63.9 | -1.57921 | 0.206137 | 74.6 |
2 | DN70 | 45 | 0.076 | -2.57702 | 28 | 63.9 | -1.37662 | 0.25243 | 88.2 |
3 | DN80 | 45 | 0.089 | -2.41912 | 28 | 63.9 | -1.26542 | 0.282121 | 96.6 |
4 | DN100 | 45 | 0.108 | -2.22562 | 28 | 63.9 | -1.12916 | 0.323306 | 107.7 |
5 | DN125 | 45 | 0.133 | -2.01741 | 28 | 63.9 | -0.98252 | 0.374365 | 120.7 |
6 | DN150 | 45 | 0.159 | -1.83885 | 32.5 | 63.9 | -0.78636 | 0.455501 | 148.3 |
7 | DN200 | 45 | 0.219 | -1.51868 | 32.5 | 63.9 | -0.56089 | 0.570702 | 175.9 |
8 | DN250 | 45 | 0.273 | -1.29828 | 32.5 | 63.9 | -0.40568 | 0.666525 | 196.8 |
9 | DN300 | 45 | 0.325 | -1.12393 | 32.5 | 63.9 | -0.28289 | 0.753601 | 214.3 |
10 | DN350 | 45 | 0.377 | -0.97551 | 32.5 | 63.9 | -0.17837 | 0.836631 | 229.8 |
11 | DN400 | 45 | 0.426 | -0.85332 | 32.5 | 63.9 | -0.09232 | 0.911814 | 242.9 |
12 | DN450 | 45 | 0.478 | -0.73814 | 32.5 | 63.9 | -0.01121 | 0.98885 | 255.4 |
13 | DN500 | 45 | 0.53 | -0.63488 | 32.5 | 63.9 | 0.06151 | 1.063441 | 266.7 |
14 | DN600 | 45 | 0.63 | -0.46204 | 32.5 | 63.9 | 0.18323 | 1.201091 | 285.5 |
15 | DN700 | 45 | 0.72 | -0.3285 | 32.5 | 63.9 | 0.277266 | 1.319518 | 299.8 |
备注: | 1、管道当量埋深0.8米。 2、管道中心埋设深度DN150以内1.1米,DN150以外1.4米。 3、保温层材料在运行温度下的导热系数300度0.058W/(m*K)、350度0.063W/(m*K)。 4、土的导热系数1.5W/(m*K)。 5、直埋保温管管道周边环境温度20度。 6、工作管外表面温度,可按介质温度。 7、保温管外表面温度,按设计要求(标准50度)。 | ||||||||