Harm of scale to electric tubular heater of water tank

- Sep 04, 2020-

Harm of scale to electric tubular heater of water tank:


When determining the single power and material, we will also ask the customer a very important question: how is the water scaling in the customer's area. This can be judged from the scale in the hot kettle that usually burns water. You must ask about the relationship between the scaling and the power and material of the electric tubular heater of the water tank. Today, we will discuss the harm of the scale to the electric tubular heater of the water tank.


Scale is calcium carbonate, its acid will corrode metal materials, but as long as water heating will produce scale, so scale is the natural enemy of water tank electric heating pipe. When the scale adheres to the surface of the electric tubular heater of the water tank for a long time, it will corrode the shell of the electric tubular heater and make it appear small holes. In this way, water will enter into the electric tubular heater of the water tank, which will make the magnesia powder moist, weaken its insulation and cause breakdown phenomenon. In this way, the electric heating pipe of the water tank can not be used.


On the other hand, when the scale covers the surface of the electric tubular heater of the water tank, it will hinder the heat conduction of the electric tubular heater. When the surface temperature of the electric tubular heater of the water tank can not be transmitted out in time, the surface temperature of the heating pipe will rise, and the internal temperature will inevitably increase. When the internal temperature is high to a certain extent, the resistance wire will be burned out, and even the tube burst phenomenon will occur. This will end the service life of the electric tubular heater of the water tank, and the scale will seriously affect the service life of the electric tubular heater of the water tank.


From the above explanation, we know that scale can corrode the electric tubular heater and hinder heat conduction. Therefore, before ordering the electric tubular heater of the water tank, we should decide whether to choose the ordinary 304 material or the corrosion-resistant 316 material or the water tank electric tubular heater with anti scaling coating according to the scale condition.


At the same time, the scale also determines the power per meter design of the electric tubular heater. The higher the power per meter, the greater the surface load, the faster the scaling speed. Therefore, if we reduce the scaling speed on the surface of the electric tubular heater of the water tank, we will reduce the power per meter, which will increase the cost of the electric tubular heater of the water tank. Therefore, the harm of scale to the water tank electric heating pipe not only affects the service life of the water tank electric heating pipe, but also affects the unit cost of the water tank electric heating pipe.