本发明 公开了一种高压自控反应釜上用的电热器。由管体和电阻丝组成,其特殊之处是:在管体 内壁上沿螺旋方向设有凹槽,电阻丝镶嵌在凹槽内。其中凹槽的横截面为“U”形,且“U”形上端 两边之间的距离比底边的长度小。具有安装容易,生产效率高,安全可靠,使用寿命长的优点。
The invention discloses an electric heater of a pressurecontrolled reactor with. Composed of a tube body and aresistance wire, and is characterized in that: a groove is arranged on the inner wall of the pipe body along the spiral direction, the resistance wire is embedded in thegroove. A cross section of the groove in the shape of “U”and “U” shape, between both sides of the upper ends ofthe length of the bottom edge distance than small. Witheasy installation, high production efficiency, safety and reliability, long service life. The utility model.