The Casing is a heavy-duty structural enclosure engineered to house and support coil or tube assemblies in thermal power plants and industrial boilers. Designed for optimal thermal efficiency and durability, the casing forms a critical part of the flue gas heat recovery system, enabling preheating of boiler feedwater and significantly improving overall plant efficiency
Design & Construction Features:
- High-Strength Fabrication:
Manufactured from premium-grade carbon steel or weathering steel, the casing is built to withstand high temperatures, flue gas velocities, and corrosive environments. - Modular Panel Design:
As shown in the images, the casing is constructed using modular plate panels reinforced with stiffeners, ensuring excellent structural stability under both static and dynamic load conditions. - Tube Support & Penetration Openings:
Precision-aligned openings and baffles accommodate tube bundles, ensuring uniform gas flow and secure mounting. - Integrated Frames & Base Skids:
The supporting frames and base structures provide lifting, mounting, and transportation ease while also withstanding thermal expansion and mechanical loads during operation.
Functional Advantages:
By enclosing the coil bank, the casing ensures maximum heat capture from exhaust gases, improving boiler efficiency.
Welded joints and gasketed flanged sections ensure minimal flue gas leakage and improved thermal containment.
External coatings and optional internal linings safeguard the structure against acid dew point corrosion and ash erosion.
Designed for modular installation and transport, the casing simplifies on-site erection and reduces commissioning time.
Applications:
- 1. Supercritical and subcritical power boilers
- 2. Process steam boilers in refineries and petrochemical plants
- 3. Waste-to-energy and biomass-fired units
- 4. Industrial steam generation systems in cement, pulp & paper, and textile sectors