Design of a Post-combustion chambre

• Corrosion in the lower part by condensation of corrosive elements on the surface of the pipes during transient phases.
• High local thermal loads (around 400kW/m2)
• Normal general wear and tear by erosion
• High maintenance costs: limited lifetime of the part + long intervention time for panel changes
• Water flow distribution not adapted to the thermal loads of the room

• Diagnosis of the existing system: Delta Water measurement campaign and water pressures in order to map thermal loads and water supply conditions.
• Adapted design: thermal and hydraulic studies (SolidWorks software), increase in volume (+40%), new post-combustion chamber made up of 3 superimposable monobloc elements allowing easy assembly/disassembly. All circuits equipped with PT100 probes with connection box.
• Complete supply of the post-combustion chamber with access gangways: adjusted manufacturing, passage to the test bench in our facilities.
• Follow-up after commissioning: use of temperature recordings and test bench passage to check the reliability of the equipment.

• Simplification of assembly operations
• Much easier to carry out maintenance operations
• Very sharp reduction in power trips on the furnace; previously due to alarms on water temperatures at the outlet of circuits
• Better consideration of thermal loads
• Significant reduction in downtime

The main characteristics are:

• Parallelepiped shape with a hopper
• Swivel sleeve
• Two “pre-quench” water injection canes on the upper part of the machine
• Afterburner volume of 144m3
• Dimensions: depth 2768mm x width 4530mm x height 11462mm (excluding hopper)