What are Fired Heaters? How do They Work?



Industrial furnaces are meant to create an environment where a high processing temperature can be attained, compared to open-air systems, while providing the efficiency gains of a closed system. Temperatures shoot up to as high as 400 degrees Celsius or greater in industrial furnaces.
The furnace serves as equipment that acts as a reactor to provide heat for different processes. Based on their functions, furnaces have varying designs, heating duty, fuel type, and method of introducing combustion air.
In an industrial furnace, heat is generated by mixing fuel with air and oxygen or using an electrical source of energy. Residual heat exits the furnace as flue gas.
Industrial heaters manufacturers provide furnaces that are also called fired heaters. These have a burner installed in them which provide hot gasses that allow for heat energy to be transferred to a process liquid or gas that flows directly through coils installed inside the heater vessel.
Direct fired heaters use heat from radiant or convection heat transfer sections. It is possible to configure them in a number of different ways based on customers’ specific requirements. Owing to the flexibility in design, virtually any style of furnace burner can be used for single or multi-burner configurations. To pick the best solution for your project or facility, you must get enough information about the working of fired heaters and the features you need to look for while purchasing one.
Fired heaters are of two types: convection heater and direct fired heater. A convection style heater offers the benefits of a direct fired heater while eliminating some significant drawbacks that occur in radiant heat transfer. Radiant heat transfer can be undesirable for temperature sensitive applications as  radiant heat transfer is known to be much more intense and is unevenly distributed around the coil surface.
In the petrochemical and refining industry fired heaters are critical pieces of equipment which are important for the impact they have on process unit safety, reliability, and economics. This equipment is are complex, where tubes and other pressure boundary components are at risk of failure or malfunction in relatively short periods of upset conditions.
To choose the ideal fired heaters for your facility, make sure to only buy from reputed and leading industrial heaters manufacturers. They bring with them reliable expertise and trust that is essential to making a capital-intensive, long-term investment that heaters require.

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