单位：m2/m
|
|
管道公称直径（mm） |
||||||||||
|
15 |
20 |
25 |
32 |
40 |
50 |
70 |
80 |
100 |
125 |
||
|
保 温 层 厚 度 （mm） |
0 |
0.0669 |
0.0842 |
0.1053 |
0.1329 |
0.1508 |
0.1885 |
0.2372 |
0.2781 |
0.3581 |
0.4398 |
|
5 |
0.1257 |
0.1429 |
0.1640 |
0.1916 |
0.2095 |
0.2472 |
0.2959 |
0.3368 |
0.4169 |
0.4986 |
|
|
10 |
0.1587 |
0.1759 |
0.1970 |
0.2246 |
0.2425 |
0.2802 |
0.3289 |
0.3698 |
0.4499 |
0.5316 |
|
|
15 |
0.1916 |
0.2089 |
0.2300 |
0.2576 |
0.2755 |
0.3132 |
0.3619 |
0.4028 |
0.4829 |
0.5645 |
|
|
20 |
0.2246 |
0.2419 |
0.2630 |
0.2906 |
0.3085 |
0.3462 |
0.3949 |
0.4357 |
0.5159 |
0.5975 |
|
|
25 |
0.2576 |
0.2749 |
0.2959 |
0.3236 |
0.3415 |
0.3792 |
0.4279 |
0.4687 |
0.5488 |
0.6305 |
|
|
30 |
0.2906 |
0.3079 |
0.3289 |
0.3566 |
0.3745 |
0.4122 |
0.4609 |
0.5017 |
0.5818 |
0.6635 |
|
|
40 |
0.3566 |
0.3739 |
0.3949 |
0.4225 |
0.4405 |
0.4782 |
0.5268 |
0.5677 |
0.6478 |
0.7295 |
|
|
50 |
0.4225 |
0.4398 |
0.4609 |
0.4885 |
0.5064 |
0.5441 |
0.5928 |
0.6337 |
0.7138 |
0.7955 |
|
|
60 |
0.4885 |
0.5058 |
0.5268 |
0.5545 |
0.5724 |
0.6101 |
0.6588 |
0.6996 |
0.7797 |
0.8614 |
|
|
70 |
0.5545 |
0.5718 |
0.5928 |
0.6205 |
0.6384 |
0.6761 |
0.7248 |
0.7656 |
0.8457 |
0.9274 |
|
|
80 |
0.625 |
0.6377 |
0.6588 |
0.6864 |
0.7043 |
0.7420 |
0.7907 |
0.8316 |
0.9117 |
0.9934 |
|
|
90 |
0.6864 |
0.7037 |
0.7248 |
0.7524 |
0.7703 |
0.8080 |
0.8567 |
0.8976 |
0.9777 |
1.0593 |
|
|
100 |
0.7524 |
0.7697 |
0.7907 |
0.8184 |
0.8363 |
0.8740 |
0.9227 |
0.9635 |
1.0436 |
1.1253 |
|
注：每米管道保温层表面积按下列公式计算：
S=π(a+2δ+2δ×5%+2d1+3d2)
式中：
S：管道保温层表面积；
a：管道外径；
d1：用于捆扎保温材料的金属线或钢带厚度（取定16#线2d1=0.0032）；
d2：防潮层厚度（取定350克毡纸3d2=0.005）；
5%：保温材料允许超厚系数；
δ：保温层厚度。
