An industrial oven is an intermittent heating device that generates heat through energy sources such as electricity, gas, or fuel to heat the materials inside the oven. The following is a detailed analysis of its working principle:
1. Core working principle
Heat transfer:
Heating system: Electric heating elements (such as heating wires) or gas burners convert energy into thermal energy.
Heat transfer method: Heat is transferred to the material through thermal radiation and convection. Hot air circulates inside the oven to ensure even heating of the materials.
Temperature control:
Sensors and controllers: Real time monitoring of the temperature inside the oven and comparison with the set value.
Automatic adjustment: Adjust the heating power through PID algorithm to maintain a stable temperature within the range of ± 1-5 ℃.
Hot air circulation:
Fan and air duct: Drive the flow of hot air, eliminate temperature gradients, and improve heating uniformity.
Air exchange: Some ovens support fresh air replenishment to avoid the retention of exhaust gases that may affect the process.
2. Structural characteristics
Furnace body:
Material: The outer shell is made of cold-rolled steel plate or stainless steel, and the inner liner is mostly made of high-temperature resistant stainless steel (such as SUS304).
Insulation layer: filled with aluminum silicate fibers or rock wool to reduce heat loss.
Heating system:
Electric heating type: The electric heating tube directly heats up, with fast heating and precise temperature control.
Gas/oil type: burner heating, suitable for large-scale and rapid processing.
Wind circulation system:
Horizontal/vertical air supply: Choose according to the size of the oven to ensure even distribution of hot air.
safety system:
Overtemperature protection: Automatic power-off when the temperature exceeds the limit.
Leakage protection: prevent electrical safety accidents.