How old the electric heating tube burns out
Causes of burning out of electric heating tubes in liquid boilers?
First: voltage problems
Three-phase electricity is recommended for large electric boilers, because three-phase electricity is industrial electricity and is more stable than household electricity.
Second: the problem of heating tubes
Because the workload of large electric boilers is very large, it is recommended to use high-quality heating tubes.
Third: the problem of electric boiler water level
Because the water in the heating system will evaporate, the longer the time, the more evaporation, if you do not pay attention to the alarm water level, resulting in the water level is too low, the heating tube will burn dry, and the heating tube is easy to be burned.
Fourth: the water quality is relatively poor
If unfiltered water is often added to the electric heating system, some impurities will adhere to the heating tube, and a layer of dirt will form on the surface of the heating tube over time, causing the heating tube to burn out.
Fifth: the electric boiler is not cleaned
If the electric boiler is not cleaned frequently, the same situation as the fourth must occur, causing the heating tube to burn out.
Fifth, the power design is not right
Water heating power design per meter 1-3KW; (Power per meter refers to the power that the electric heating tube can carry per meter of heating zone.) ）
Corrosive liquid or water with poor water quality can not exceed 2KW per meter of power design;
Oil heating power design per meter 1-2KW;
Air heating power design per meter 1-1.5KW;
The power design exceeds the above standards, and the more serious the excess standard, the greater the possibility that the electric heating tube will be burned out.
Sixth, the material choice is not correct
material selection when heating liquids;
Heat ordinary tap water, pure water, normal use of stainless steel 304 material;
Stainless steel 316 is recommended for heating liquid or drinking water with weak acid and alkaline;
Heating other corrosive liquid material options
The reason why the air electric heating tube is easy to burn out
2. Material selection when air heating:
The working temperature is 100-300 degrees, stainless steel 304 is recommended.
The working temperature is 400-500 degrees, stainless steel 321 is recommended.
The working temperature is 600-700 degrees, stainless steel 310S is recommended.
If the working temperature is about 700 degrees to 800 degrees, it is recommended to use imported materials from Ingle.
The incorrect choice of electric heating tube material is also the main reason why electric heating tubes are easy to burn out.
Through the above introduction, we can know why the electric heating tube burns out, the main reason is that the power design and material selection are incorrect. Therefore, before we order the electric heating tube, we must specifically inform its use environment, so as to avoid the electric heating tube from burning.
