Complete understanding of an industrial convection oven system is the key to its successful implementation. To help you fully understand your own system, here are the five major components of a convection oven and how each part plays its role in the entire heating or curing process.
This part is composed of the shell, insulated panels, and product openings and is where curing happens. The enclosure weight and it’s conveying systems should be fully supported with structural steel. It is the insulated panel that contains the heat of the curing process. To prevent heat loss, opening in the sides of the convection oven should be sufficiently sealed.
The heater unit is where the energy needed for curing is generated. It contains three important parts, which are the supply fan, filters and the burner. Heater units come with a filtration system to clean the oven environment.
Supply Air System
The main purpose of this system is to distribute the supply air discharged by the heater unit. Typically, the supply duct is made of aluminized metal. Also, velocities in the duct must not be over 2,500 fpm to ensure proper operation and achieve good temperature control.
Recirculated Air System
This component returns the oven air to the heater unit through the duct to create negative pressure within the enclosure. Generally, industrial convection oven air naturally migrates to low pressure areas where it will be captured in the duct and returned to the heater unit.
Exhaust Air System
Every industrial convection oven should be properly exhausted for the air seal to work efficiently while removing unwanted products from the oven. Its primary role is to maintain the safety of operating the oven and eliminate any build-up of smoke. Exhaust can be easily controlled and so reducing the oven gases is also achievable.