Wuhu Hengxin Cable Co., Ltd
Contact:Mr Dai
Phone: 13955309088
Address: 13955309088@163.com
Address: Jiuhua North Road Electrical Components Industrial Park, Wuhu City, Anhui Province
There are several ways to heat up pipelines
管道伴热有几种方式:伴管伴热或夹套管伴热。
伴热介质有:热水伴热、蒸汽伴热、电伴热等。
伴热方式的选用原则:
(1)输送介质的终端温度或环境温度接近或低于其凝固点的管道;介质凝固点低于50度时,宜选用伴管伴热;介质凝固点为50到100度时,宜选用夹套管伴热;介质凝固点高于100度时,应选用内管焊缝隐蔽型夹套管伴热。管道上的阀门、法兰、过滤器等应为夹套型。
(2)输送气体介质的露点高于环境温度需伴热的管道,宜选用伴管伴热;
(3)介质温度要求较低的工艺管道,输送介质温度或环境温度接近或低于其凝固点的管道,宜采用热水伴管伴热。
(4)液体介质凝固点低于40度的管道、气体介质露点高于环境温度且低于40度的管道及热敏性介质管道,宜采用热水伴管伴热。
(5)输送有毒介质且需夹套伴热的管道,应选用内管焊缝外露型夹套管伴热。
(6)经常处于重力自流或停滞状态的易凝介质管道,宜选用夹套管伴热或带导热胶泥的蒸汽伴管伴热。
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