Professional Production of Nonwoven Fabric Heaters
It is a device that converts electrical energy into heat energy. The cold medium enters the inner cavity of the heater and follows the designed path, fully contacting the flange heating core inside the heater cavity, reaching the required temperature, and then being sent to the heat-using equipment. The temperature control system of the heater automatically adjusts the power of the heater based on the feedback signal from the temperature sensor at the heater outlet, saving energy while ensuring the heat demand. The electrical control system has a built-in overheat protection function. If the temperature sensor in the heater cavity detects that the temperature is too high or there is a dry-burning condition, it will immediately cut off the power supply to prevent material deterioration due to excessive temperature, such as coking, carbonization, or damage to the heating tube due to dry burning.
Application in meltblown fabric equipment (meltblown nonwoven fabric, meltblown machine):
In the production process of meltblown nonwoven fabric, the compressed air output by the air compressor passes through an inlet dehumidification filter and then enters the air electric heater. After being heated to the set process temperature, it is transmitted to the meltblown die head assembly.
The meltblown process has high requirements for hot air. Using a matching point control cabinet and an accurate temperature control system can control the temperature difference within ±1°C.
The meltblown process flow is: polymer preparation → melt extrusion → metering pump → meltblown die head assembly → melt filament stretching → cooling → receiving device. The main meltblown equipment includes: feeder, screw extruder, metering pump, meltblown die head assembly, air compressor, air electric heater, receiving device, and winding device. For producing polyester and other raw materials, additional equipment such as chip drying devices are needed. Auxiliary production equipment mainly includes: die head cleaning furnace, electrostatic application device, and spray device.
Features:
1. It can heat the medium to a very high temperature, up to 850°C, while the shell is only 50°C;
2. Fast heating and cooling rates, up to 10°C/s, with stable and rapid temperature adjustment, no issues such as temperature lead/lag or fluctuation, suitable for automatic control;
3. The heating element is made of stainless steel alloy material, with high mechanical properties and strength under the influence of high-pressure airflow and water flow;
4. High efficiency, up to 90% or more;
5. Small size, easy to operate and maintain;
6. Under the condition of not violating operating guidelines, the service life can reach more than ten years, durable.
