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
Application of electric heat tracing tape - antifreeze and insulation of tunnel fire pipes
随着高速公路的建设、发展,高速公路日趋饱和,越来越多的在建高速基本上为山区高速公路,几乎都涵盖了隧道。因此,为提高隧道运营的安全性,隧道消防成为了不可或缺的部分。
消防管道和生命安全息息相关,尤其是在北方寒冷的地区,冬季环境温度长期处干冰点之下,而且隧道口等部位风速较大温度较低,遇到雨雪天气隧道内部容易长期处于潮湿状态等,导致隧道内的消防管道冻结,因此需要对隧道的消防管道进行防冻处理,以保证消防设施在冬季的正常使用。
隧道消防管道采用电伴热系统,可以有效的防止消防管道出现冻结的现象,对于高速公路隧道中的管道安全防护起到重要的作用。电伴热带散发的热量直接或间接地热交换补偿被伴热管道的热损失,使温度维持在要求的范围内,从而达到防止管道结冰的目的。
电伴热带保温具有启动迅速、温度均匀、维护方便、安全可靠、无环境污染等优势,用户可根据具体情况选择自限温电伴热带或恒功率电伴热带,其中自限温电伴热带,其PTC发热元件的电阻率具有很高的正温度系数且相互并联,能够自动限制发热温度,并随被伴热体温度自动调节输出功率,可以任意剪切或在一定长度范围内接长使用。具体选型需要根据当地的环境、管道的直径、长度、热损失量等因素去选择适合的型号。
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