Increase of Bridgewall Temperature can be a symptom of excessive fouling of the radiant tubes. The steel alloy tubes typically used in fired heaters. These tubes tend to oxidize under operating conditions. Layers of scale and soot can grow with time to a degree that it insulate the tube fire side from the radiant heat. It is even more dangerous if there are several years until the next scheduled shut down.
Cetek’s patented Hot Tube Descaling Process removes radiant section process tube fireside soot, scale & fouling during furnace operation. Our hot tube descaling process uses unique water-cooled lances. We ensure continuous scale removal and maximum cleaning of the tubes while the heater continues to function normally. The process utilizes consumable abrasive media resulting in no increase in emissions.
In some applications, we use Cetek’s LancescopeTM system to see hard to reach areas. We also have the capability to safely create engineered access ports. These ports can be used to facilitate the hot tube defouling process.
Typical results of the hot tube descaling process include bridgewall temperature reduction of 50°F (10°C) to 100°F (38°C). Dozens of our customers note rapid payback from using this service. As a longer-term solution, we provide tube coating service, that stops tube oxidation and scaling for 8-10 years.