Take you to understand the advantages and disadvantages of PTC heating technology - 1 views
started by kbojezhang44 on 11 Mar 20
started by kbojezhang44 on 11 Mar 20
started by kbojezhang44 on 11 Mar 20
The essence of PTC heating technology is also a resistive heat dissipation method. First explain the meaning of PTC, which translates to "positive temperature coefficient". The full name of PTC heating element is "positive temperature coefficient thermistor heating element". Due to its long length and twisting, it is basically referred to as PTC heating element in China. This type of heating element has a very good characteristic, which is constant temperature heating. Our common PTC heating elements have a temperature value between 250 ° C and 280 ° C. Because the characteristic of PTC thermistor is that the higher the temperature, the greater the resistance, when the temperature reaches the temperature value, its resistance reaches infinite, and it will start to be non-conductive. When the temperature drops, it starts to conduct electricity again, and can continue heating. This is determined by semiconductor characteristics. This uses special resistive materials to greatly improve the efficiency of electricity-to-heat conversion without fear of high temperature and overload. Technologists fuse this thermistor into a ceramic body to make a PTC semiconductor ceramic, which has made a heating body with many advantages. If the semiconductor ceramic is directly placed in the water, it will also cause unsafe factors. Therefore, the PTC semiconductor ceramic is closely attached to the heater water tank and insulated, and a PTC heater is formed.
Advantages of this type of heater:
1. Absolute water and electricity separation, will not leak electricity to the entire water pipeline to ensure life safety.
2. No radiation, no pollution, no harm to human body caused by electromagnetic radiation.
3. The electrothermal conversion rate is high. Because it is a professional heating material, there is no excessive energy conversion, which can fully convert electrical energy into thermal energy.
4, long service life, because it is a professional heating element, the service life of the device is more than 30,000 hours. The transition to the heating season is more than 15 years.
5, no open flame, no light consumption, the thermistor can only generate heat, and do not want to glow red like the resistance wire. Therefore, there is no light consumption, which greatly improves the power utilization rate.
Even with so many advantages, PTC heaters have disadvantages in use, that is, there will be slight scaling in the heating water tank. But it is much smaller than electromagnetic and electric heating rods.