Streamlining Maintenance of Fired Heater, Furnace and Boiler Coils Attached to Common Headers
Cleaning and inspection of furnace coils, particularly those connected to manifolds (common headers), have long posed daunting challenges for operators. In our recent webinar: Cleaning and In-Line Inspection of Furnace Coils Without Removing Manifolds, we discussed some challenges operators face and revealed how our Header Delivery System is transforming the field—delivering unprecedented asset reliability, performance, safety, and actionable insights.
Industrial fired heaters, furnaces, and boilers—for catalytic reforming, steam generation, waste heat recovery and steam cracking—are critical to refinery and petrochemical plant operations. Their role in upgrading feedstocks and driving essential thermal and chemical reactions is critical to profitability and plant safety. However, as highlighted in the webinar, integrity threats such as internal and external corrosion, fouling, tube oxidation, and mechanical damage (e.g., fretting) can bring even the most robust operations to a halt.
Internal corrosion remains the most predominant form of tube degradation, often caused by internal fouling, contaminated feedstocks, and aggressive operating conditions. Other threats are prevalent, like external wall loss from oxidation or fretting (mechanical vibration), tube bulging from internal scale buildup, and tube ruptures from unexpected fouling and misaligned burners. If left unchecked, each of these damage mechanisms can result in catastrophic failures, long outages, and lost production—sometimes amounting to millions in revenue loss.
Historically, cleaning and inspecting coils welded to manifolds was a daunting task. Operators faced tight spaces, confined entry hazards, and the need for significant modifications just to gain access to the tubes. The time, cost, and risks involved often lead to deferred inspections or “do nothing” approaches, in essence gambling with the longevity and reliability of critical assets.
The dilemma is clear: How do you effectively assess coil condition and risk when access is restricted, despite traditional inspection methods falling short? The answer is clear, with our innovative Header Delivery System—a game-changer, making these challenges a part of the past. Our solutions give operators safe and reliable access to the coils without the use of hazardous chemicals, significant modifications, or downtime to inspect and clean the coils. This engineered device is inserted into manifolds, sealing directly above targeted coil inlets and outlets, allowing for the controlled filling of coils with water, advanced mechanical cleaning and the introduction of a bi-directional, high data density ultrasonic in-line inspection tool such as our FTIS, all without the need for extensive cutting, welding, or confined space entry.
The impact is profound. Implementing the header delivery system alongside our cleaning and ILI inspection solution enabled rapid project completion—inspecting hundreds of coils in mere days—and revealed previously undetected problems like severe fouling and localized wall loss. In one methanol plant, we detected an upward 40% wall loss. Additionally, we removed a significant amount of internal fouling from a convection bank containing 100 coils, some of which were completely blocked. After inspecting and cleaning, blockages were eliminated from 19 out of the 100 coils, resulting in a 60% improvement in heat transfer efficiency and an estimated annual production increase of $1 million USD.
Beyond improved inspection and cleaning, our header delivery system also enhances personnel safety, reduces or eliminates scaffold and modification requirements, and enables targeted interventions based on real data.
Ready to transform your fired heater, furnace, and boiler coil maintenance and unlock new levels of insight and efficiency? Contact us today and let innovation lead your operations into the future!
