Heat Recovery System Explanation and User Guide
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I. Equipment Advantages
High thermal energy recovery efficiency
- Employing Venturi jet mixing technology, it effectively recovers heat from waste heat mediums such as flue gas and steam, enhancing the overall thermal efficiency of the system.
- The device can reduce the flue gas temperature from about 350℃ to around 100℃, significantly increasing the sensible heat recovery rate and reducing fuel consumption.
2. Outstanding energy-saving and environmental protection effects
- Recovered heat can be directly used for heating boiler make-up water, domestic hot water, or process water, reducing energy waste.
Reduce heat and pollutants (such as sulfur compounds and particulates) in exhaust emissions, optimizing environmental quality.
3. Durable and highly adaptable structure
Modular design supports various installation methods (vertical/horizontal) and is adaptable to different industrial environments (power generation, chemical, metallurgy, etc.).
- Corrosion-resistant materials (such as stainless steel, ceramic matrix composites) extend service life and have low maintenance costs.
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Custom Parameter Requirements
| Parameter Category | Specific Requirements |
|---------------------|-----------------------------------------------------------------------------|
| Source Parameters | - Flue Gas Temperature Range: 100~600℃ (Peak Temperature and Fluctuation Range to be Specified) |
| | - Flue Gas Flow: Designed according to the rated load of the boiler or furnace (error ≤ ±5%) |
Cooling Medium Parameters | - Cooling Water Temperature: Inlet temperature ≤35°C, outlet temperature can be raised to 60~90°C
| Structural Parameters | - Heat Exchange Area: Calculated based on heat load (recommended redundancy 15%~20%) |
Material Selection | - High-temperature areas use 310S stainless steel or titanium alloy; low-temperature areas may opt for 304 stainless steel.
Control System | - Standard with temperature and pressure sensors, supports PLC automatic adjustment (optional remote monitoring module)
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Section 3: Installation and Maintenance Precautions
Installation Requirements
- Basic Treatment: Ensure equipment level deviation ≤ 3mm/m; expansion joints must be installed at flue pipe interfaces to compensate for thermal displacement.
Welding specifications: After pipeline welding, a pressure test is required (maintaining at 1.5 times working pressure for 30 minutes).
2. Operation and debugging
Before initial operation, flush the pipes to prevent slag from clogging the nozzle or heat pipes.
Stepwise increase the heat source temperature during debugging (heating rate ≤ 50℃/h) and monitor the heat exchange efficiency to ensure it meets the standard.
3. Routine Maintenance
Key Inspection Items:
- Monthly cleaning of flue gas ducts (with a focus on checking the scaling of Venturi mixers).
Quarterly inspection of heat pipe thermal transfer performance (replacement or regeneration required in case of abnormal temperature difference).
- Safety Protection: Regularly inspect safety valves (at least once a year), pressure gauge calibration cycle ≤ 6 months.
4. Stop-Ship Protection
- For long-term disuse, empty the water tank and fill with nitrogen (pressure 0.03~0.05 MPa) to prevent internal corrosion.
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Four, Recommended Product (Jiusheng Power, Lianyungang)
- Model Example: YQSLQ series waste heat recovery unit, compatible with flue gas temperatures ≤ 550°C, with a heat recovery efficiency of over 75%.
- Key Parameters: Customizable heat exchange area (20~2000㎡), available materials include 316L stainless steel or ceramic composite coating.
- Price Reference: Prices range from 80,000 to 800,000 yuan, depending on configuration; for specific quotes, please inquire.
For technical documents or selection support, refer to "Specification for Heat Recovery Design of Heat Equipment" or visit.
Reheat Recovery Unit
