Industrial electric furnaces are a category of electric furnaces. The range defined by electric furnaces is greater than that of industrial electric furnaces. Electric furnaces include household electric furnaces, laboratory electric furnaces and industrial electric furnaces. Household electric furnaces such as electric stoves for cooking rice, rice cookers, ovens, electric heaters for induction cookers and hot water, electric kettles, etc. The experimental electric furnace is an experimental small electric renting furnace for scientific research.
Calculation method of heating value of electric heating wire of industrial electric furnace:
Q=3.62W=3.62PT
The heat generated by the Q-electric furnace (J);
The electric energy (kWh) consumed by the W-electric furnace;
P-electric furnace power (kW);
T-electric furnace power-on time (h).
Industrial electric furnaces are various large, medium and small electric furnaces widely used for heating, heat treatment and melting in industrial and mining enterprises.
The common feature of industrial electric furnaces, electric furnaces and experimental electric furnaces is that they use the electrothermal effect to supply heat to heat, heat or smelt industrial materials.
The heating wire is a heating element used in various electric heating devices. Regarding the selection of the heating wire, we should pay attention to the following points.
1, the operating temperature of the heating wire
The maximum operating temperature of Huajiang electric wire is the most important performance index in the selection process. It is necessary to remind the purchaser that the heating temperature of the heating wire refers to the temperature of the surface of the heating element in the running body, instead of The operating temperature that can be reached by an electric heating device or a heated object.
In the design and selection of electric heating wire, the final heating temperature can be measured according to the electric heating equipment used or the object to be heated. For example, when the heating wire is used for boiler heating, the temperature difference between the furnace temperature and the heating wire is 100 °C. about. If the heating temperature of the heating wire exceeds the maximum use temperature, the oxidation process itself is accelerated, the heat resistance is lowered, and the service life is shortened.