保温材料的保温系数、导热系数(10℃时)每米管道1℃温差时的热损失Q 表一(K值)
气垫导轨实验表二(q值)
保温材料保温系数(w/m ℃)
导热系数(w/m ℃)玻璃纤维0.036
岩棉0.044矿渣棉0.038
1/2发泡塑料0.042 3/4珍珠岩0.047 1聚氨脂泡沫塑料0.0242001/1/4聚苯乙烯泡沫塑料0.0312001/1/2硅酸钙0.054 2复合硅酸盐毡FHP-0.0234
2-1/2 3
管道材料修正系数 3-1/2表三(C 值)表四(K值)
4管道材料修正系数
名 称
散热系数 4-1/2碳钢1法 兰
复旦黄山门0.5 5
铜 1.05蝶 阀
新闻游戏0.7 6不锈钢0.9节 流 阀
0.7 8塑料
0.65
球 阀
0.8 10球心阀
1.2 12闸 阀 1.3 14 16 18 20 24
引人入胜的书规格型号最高伴热温度℃最高耐温℃
最大使用
长度m DBR 系列
克氏锥虫105
30
DBR 系列自调温电伴热带751051000
ZBR 系列自调温电伴热带
1051351000
管径
阀门及管道附件散热系数(以每米管道散热
量为基数)确定电伴热带型号、长度表七(电伴热带敷设方法)
1.1 1.2 1.3 1.4 1.51"2501701401101001 1/4"3102101701401301 1/2"3502401901601402"4303002402001802 1/2"5203602902402103"6304303502902603 1/2"7204903903302904"8005604403703304 1/2"8906104804003505"9906805504604006"11808106505504808"
15201050840710620
管径每米管道散热量(热损失)与电伴热带额定功率比值表八(电伴热带缠绕节距)
米管道1℃温差时的热损失Q
101525355060751001月2日
3月4日12001/1/222002/1/234158.86 6.73 5.74 4.59 3.94 3.61 3.28 2.952010.347.87 6.56 5.09 4.43 3.94 3.61 3.282512.319.027.55 5.91 4.92 4.43 4.1 3.613214.7710.838.7 6.73 5.58 4.92 4.59 3.944017.0612.310.017.55 6.23 5.58 4.92 4.275019.6914.1111.328.537.05 6.07 5.42 4.766523.1316.5713.139.687.88 6.89 6.07 5.258027.5619.3615.2611.169.037.88 6.89 5.749531.0121.8217.0612.3110.018.537.55 6.2310034.4524.1218.8713.6210.839.198.21 6.7311537.926.4120.5114.7711.8110.018.867.2213041.8329.0422.4816.0812.810.839.527.7115049.2233.9626.2518.5414.612.310.668.720063.1643.1533.1423.1318.2115.0913.1310.6625077.7652.9940.5228.0521.8218.0515.5912.4730091.762.1847.5832.8125.432117.8814.27350100.468.0851.8435.627.5623.4619.3615.26400114.277.2758.7340.3631.0125.4321.8217.06450128.186.4665.7944.9534.4528.2224.1218.87500141.995.8172.6849.5537.931.0126.4120.51600
169.6
114.2
86.46
沈阳师范大学文学院58.73
44.95
37.08
31.01
24.12
径
保温层厚度(mm/in )