会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 5. 发明授权
    • District-heating line
    • 区域供热线
    • US4288654A
    • 1981-09-08
    • US131142
    • 1980-03-17
    • Hans BlomLeif Wiberg
    • Hans BlomLeif Wiberg
    • F16L59/14F17D5/06G01M3/04G01M3/18F16L55/00
    • F16L59/143F17D5/06G01M3/045G01M3/18Y10T137/8158
    • A district heating line comprising an inner metal tube intended for the transfer of a heating medium and encircled by an insulating layer of foamed plastic. Arranged around the insulating layer is a moisture impenetrable protective tube. To enable an alarm to be given in the event of a fault in the line, elongated blocks are fixedly mounted on the outer cylindrical surface of the metal tube. The blocks are made of electrically insulating material. They each have at least one radially extending, outwardly opening channel on the outer surface thereof with the channels on adjacent blocks aligned with one another. The channels are dimensioned to accommodate the electrical conductor and position it at a fixed distance from the outer cylindrical surface of the inner metal tube. The conductor is secured in the aligned channels at the fixed distance from the outer cylindrical surface of the inner metal tube. A water soluble salt is incorporated in the electrically insulating blocks.
    • 一个区域供热管线,包括用于传送加热介质并被发泡塑料绝缘层包围的内金属管。 绝缘层周围布置有防潮透气保护管。 为了在线路中发生故障时能够给出报警,细长块固定地安装在金属管的外圆柱形表面上。 这些块由电绝缘材料制成。 它们各自在其外表面上具有至少一个径向延伸的向外开口的通道,相邻块上的通道彼此对准。 通道的尺寸适于容纳电导体并将其定位在与内金属管的外圆柱形表面固定的距离处。 导体以与内金属管的外圆柱形表面固定的距离固定在对准的通道中。 水溶性盐被并入电绝缘块中。