Economizer
Economizer
(Boiler Waste Heat Recovery System)
Technical Description
BELLFABS BOILERS Economizers are high-efficiency waste heat recovery systems designed to improve boiler thermal performance by recovering heat from flue gases and utilizing it to preheat boiler feed water before it enters the boiler. This recovered heat reduces the fuel energy required for steam generation, thereby improving overall boiler efficiency and reducing operating costs.
The economizer is installed in the flue gas path between the boiler outlet and chimney, where hot exhaust gases transfer heat to feed water flowing through specially designed tubes or finned tube assemblies. The system lowers stack temperature losses while increasing feed water temperature, resulting in enhanced steam generation efficiency and reduced fuel consumption.
Economizers are suitable for steam boilers, hot water boilers, thermic fluid heaters, FBC boilers, and industrial heating systems operating with coal, biomass, husk, briquettes, wood chips, oil, gas, and multi-fuel firing systems.
Key Features
- Efficient waste heat recovery system
- Preheats boiler feed water using flue gas heat
- Improves overall boiler thermal efficiency
- Reduces fuel consumption and operating cost
- Enhanced heat transfer surface design
- Easy integration with boiler systems
- Low maintenance operation
Advantages
- Increased boiler efficiency
- Reduced fuel consumption
- Faster steam generation performance
- Improved energy utilization
- Reduced exhaust gas heat loss
- Lower boiler operating cost
- Eco-friendly heat recovery solution
- Quick return on investment
Technical Parameters
| Parameter | Specification Range |
|---|---|
| Equipment Type | Boiler Economizer |
| Application | Waste Heat Recovery System |
| Heat Transfer Medium | Boiler Feed Water |
| Operating Fluid | Water |
| Construction Type | Tubular / Finned Tube Design |
| Boiler Capacity Compatibility | 100 Kg/hr to 15 TPH |
| Operating Pressure | As per Boiler Design Pressure |
| Feed Water Temperature Rise | As per Heat Recovery Requirement |
| Flue Gas Temperature Range | High Temperature Flue Gas Application |
| Efficiency Improvement | Up to 4% to 8% |
| Construction Material | Carbon Steel / Alloy Steel Tubes |
| Mounting Type | Inline / External Mounted |
Standard Scope of Supply
- Economizer Coil Assembly
- Headers and Tube Arrangement
- Support Structure and Casing
- Interconnecting Piping
- Access Doors and Inspection Openings
Design Standards
- Designed for industrial waste heat recovery applications
- Heavy-duty welded construction
- Hydraulically tested pressure parts
- Engineered for high thermal efficiency improvement
- Suitable for continuous industrial operation
