Electric process heaters require a multi-discipline engineering approach to design and build a heater system with the longevity needed to meet the demanding performance of 24/7/365 operations.
PTI engineers have the expertise and experience to design these process gas heaters to meet this challenging environment. Our process engineers consider the electric element heat flux as a function of the process heat transfer performance and mass flow rates.
Our control engineers utilize this process data to establish a safe operating envelope for these heaters. By using cascading PID controllers, our control strategy prevents runaway electric heater sheath temperatures during process upsets, which helps protect the electric elements from burn-out.
Finally, our electrical engineers size the heater circuits, power panels, and SCR controllers to modulate the heater load. Our HPP design incorporates integral Over-Temperature Shutdown Interlocks to provide a final layer of protection for the engineered heater system.