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管道保温工程

宣布时间: 2021-07-14 17:01:40 有用时间: 2021-07-23 17:00:00 浏览量

 

转载时请注明来由:尊龙凯时网站www.jiermt.com

序号

名称

型号规格

材质

单位

数目

1

倾轧热水管道橡塑棉保温

1、倾轧采暖管道保温质料要求接纳橡塑棉管壳,,,,,,在70℃状态下导热系数不大于0.036W/m℃,,,,,,密度为≤95 kg /m3,,,,,,其余物性参数切合国家标准GB/T 17994-2008 《柔性泡沫橡塑绝热制品》相关划定。。。。。。。防火品级切合国家标准GB8624-2012《修建质料及制品燃烧性能分级》中B1级相关要求。。。。。。。
2、玻璃丝布面宽不小于200mm,,,,,,包扎3、外貌油漆选用质料与保温层不爆发物理、化学反应,,,,,,包管油漆、保温层的性能不爆发改变。。。。。。。涂层匀称厚实,,,,,,不可有玻璃丝布漏出。。。。。。。
4、保温层外外貌要求平整颜色一致,,,,,,阀门等管件处过渡平滑。。。。。。。

橡塑棉

约1169

2

倾轧蒸汽管道岩棉保温

1、倾轧蒸汽管道保温质料要求接纳岩棉管壳,,,,,,岩棉管壳在80℃状态下导热系数小于0.075W/m℃,,,,,,密度为200 kg /m3。。。。。。。
2、油毡包扎不少于1.3倍圆周。。。。。。。
3、镀锌铁丝规格不小于φ1.0,,,,,,捆扎间距不大于400mm。。。。。。。
4、玻璃丝布面宽不小于200mm,,,,,,包扎不少于2层。。。。。。。

岩棉

约262

3

埋地管道聚氨酯发泡保温

1、直埋采暖管道保温质料要求接纳高密度聚乙烯外护管聚氨酯直埋保温管,,,,,,事情钢管由建设单位提供,,,,,,施工单位需在建设单位提供的园地内举行直埋保温管预制,,,,,,保温讨论现场举行制作。。。。。。。
2、所用高密度聚乙烯外护管,,,,,,密度>940kg/m³,,,,,,拉伸强度>20mpa,,,,,,断裂延伸率>350%,,,,,,纵向回缩率<3%,,,,,,抗老化温度>250℃,,,,,,接纳电晕处置惩罚,,,,,,处置惩罚电压10-50kv
3、所用聚氨酯保温层,,,,,,密度60-80kg/m³,,,,,,导热系数<0.027w/㎡·℃,,,,,,抗压强度>0.2mpa剪切强度>0.12mpa,,,,,,闭孔率>88%,,,,,,耐热温度>120℃
4、管道与外护管同心,,,,,,聚氨酯应将管道和外壳细密连系,,,,,,接纳高压发泡机发泡。。。。。。。
5、接口保温接纳套袖毗连,,,,,,套袖与外护管之间接纳热熔毗连,,,,,,向套袖灌注料浆举行发泡。。。。。。。

聚氨酯

约823

4

保温外保;;;;げA坎夹薷赐科

1、玻璃丝布面宽不小于200mm,,,,,,包扎2、外貌油漆选用质料与保温层不爆发物理、化学反应的环保型油漆,,,,,,包管油漆、保温层的性能不爆发改变。。。。。。。涂层匀称厚实,,,,,,不可有玻璃丝布漏出。。。。。。。

缠布刷漆

约2130

 

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