Tubular Do Fix Positioning

Tubular electric heater heating tube is installed in the outer tube of electric wire, the gap is filled with good thermal conductivity and insulation of the magnesium oxide powder after the tube, after heat treatment process (individual tube does not need), and then processed into the user The required variety of shapes. It has a simple structure, high thermal efficiency, good mechanical strength, good environment for the poor adaptability. It can be used for a variety of liquid and acid salt heating, but also to adapt to low melting point of metal heating to melt.

The precautions for using the electric heater element are as follows:

1, tubular electric heater electric tube should be fixed positioning, effective heating area must be completely immersed in liquid or solid metal, is strictly prohibited air burning. Found that the surface of the pipe body scale or carbon, it should be promptly cleaned and re-use, so as not to affect the heat and shorten the service life.

2, heating fusible metal or solid salt, alkali, asphalt, paraffin, etc., should first reduce the use of voltage until the media melt, to rise to the rated voltage.

   3, heating the air when the tubular electric heater components should be evenly arranged cross, so that the components have good heat dissipation conditions, so that the flow of air can be fully heated.

4, the wiring part should be placed outside the insulation layer, to avoid contact with corrosive, explosive media, moisture; lead wiring should be able to withstand long-term wiring part of the temperature and heating load, wire screws should be tightened when tight.

       5, tubular electric heater components should be stored in a dry place, if the long-term insulation resistance below 1MΩ, can be about 200 ℃ oven drying, or reduce the voltage power heating until the restoration of insulation resistance.