1. The quality of water
Due to the hard water quality, it is easy to freeze water, when the scale on the inner surface of the heating tube is too much, it will hinder the heat transfer on the surface of the electric heating tube, resulting in the internal temperature of the heating tube is too high and burns its resistance wire, and in serious cases, there will be leakage burst phenomenon, shortening the life of the heating tube.
2. Whether the heating tube has dry burning phenomenon
In the electric heating tube in the dry boiling water tank, due to the obstruction of heat transfer by air, the surface temperature of the heating tube rises instantaneously, resulting in an increase in the temperature in the tube. After the internal temperature rises to a certain extent, it will burn out the resistance wire in the tube and shorten the service life of the electric heating tube.
3. Whether the design is reasonable
The power of the electric heating tube of the water tank is generally 1-3KW, when exceeding the design, the surface load is too high will reduce the service life of the electric heating tube of the water tank, because its surface load is too high, the surface temperature of the heating tube will rise, burn the internal resistance wire, affecting the service life.
The above factors are the factors that affect the life of the electric heating tube in the water tank!