A large amount of hot air is needed for melt blown process. The compressed air output from the air compressor is transported to the Air heater It is heated and then sent to the melt blown die head assembly. The input to output voltage ratio is equal to the ratio of coil turns, while the energy remains unchanged. Therefore, the secondary coil produces a large current at low voltage.
Air duct electric heater The principle is that when a thick metal is in an alternating magnetic field, current will be generated due to electromagnetic induction. In this way, the heat generated by the current flow is absorbed by the metal itself, which will cause the metal to heat up quickly. The heating and cooling rate can reach 10 ℃ / s, which is fast and stable. It is suitable for automatic control because it will not lead or lag the air temperature and make the temperature control drift indefinite.
Electric heater In general, the explosion may be caused by the presence of electric spark in the environment Explosion proof electric heater The output power of the heater is controlled automatically according to the output power of the heater and the temperature sensor.
The internal control system of the air duct electric heater automatically adjusts the output power of the electric heater according to the temperature sensor signal at the output port, so that the medium temperature at the output port is uniform; if the heating material is overheated, coking, deterioration and carbonization are caused, the heating element will be burned out in serious cases, thus effectively extending the service life of the electric heater. The main explosion-proof measure of electric heater is that there is an explosion-proof device in the junction box of the heater to eliminate the hidden danger of electric spark initiation.