Common problems and solutions in the complete set of electric heating tube equipment

Common problems and solutions in the complete set of electric heating tube equipment

1. The positioning and fixation of the electric heating tube are good. The effective heating area must be completely immersed in the liquid or metal solid. Air combustion is prohibited. If scale or carbon deposits are found on the surface of the pipe, they should be cleaned and reused in a timely manner to avoid affecting heat dissipation and shortening the service life.

2. When heating fusible metals or solid nitrates, alkalis, asphalt, paraffin, etc., the operating voltage should be lowered first, and the rated voltage can only be increased after the medium melts.

3. When heating the air, the components should be arranged evenly and cross to provide good heat dissipation conditions, and the air flowing through can be fully heated.

4. When heating nitrate, safety measures should be considered to prevent explosion accidents.

5. The wiring part should be placed outside the insulation layer to avoid contact with corrosive, explosive media, and moisture. The wire should be able to withstand the temperature and heat load of the wiring part for a long time. When tightening the wiring screws, excessive force should be avoided.

6. The components should be stored in a dry place. If the insulation resistance is below 1m Ω for a long time, they can be dried in an oven at around 200 ℃, or the voltage can be reduced to electric heating until the insulation resistance is restored.

7. The magnesium powder at the outlet of the electric heating tube should prevent the infiltration of pollutants and moisture in the usage area to prevent leakage accidents.

Several reasons for uniform heating of electric heating tube shrinking machine

During processing, try to evenly distribute the electric heating wires and install them vertically.

This is related to the quality of the heating tube production process.

(The phenomenon of uneven compression caused by manual filling of magnesium powder can directly lead to uneven heating of the electric heating tube. Adequate filling of magnesium powder inside the electric heating tube is required.).

Otherwise, the heating would not be uniform. There are several specific reasons for this:

The quality of the heating wire is not good.

Especially when winding the wire, it is necessary to wrap it well, and then use a pipe shrinking machine to compress it, which may cause uneven spacing between the wires.

When the electric heating wire is installed in a tube, gravity causes the electric heating wire to be uneven.

Make the filling material in the pipe dense

Why does an electric heating tablet generate uneven heat?

When making double headed electric heating tubes, metal electric heating elements are used as heating elements. According to different power and voltage requirements of the heating tubes, the metal heating elements are made into spiral shapes using a winding machine. Then, the spiral shaped electric heating wire is threaded into seamless steel pipes, copper pipes, or aluminum pipes. The filling machine is used to evenly fill the protective sleeve with insulating and thermal conductive oxide media (such as crystalline magnesium oxide powder, aluminum oxide, or clean quartz sand).

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