Professional Waste Acid Recycling Boiler With ASME National Board
Standard
Heat Recovery Steam Generators (HRSG)
Heat Recovery Steam Generators are a type of Waste Heat Recovery
unit which uses waste heat (generally from Gas Turbines) to
generate steam. Therefore, HRSGs are generally attached to the
exhaust of Gas Turbines. They are commonly used in Combined Cycle
Power Plants where both Gas and Steam turbines are used to drive
generators. Common parts of a heat recovery steam generator include
the following:
• Superheater and desuperheater
• Steam drum, mud drum, drum internals
• Tubes
• Duct Burner for supplemental firing
• Blow down tank
• Economizer
• Firing equipment including duct burner, burner management system,
pilot burner
• Bypass stack and exhaust stack, sealing air fan,baffles, piping,
valves and controls
Considerations
1. The design and construction of HRSG should be such that no
detrimental vibration of tubes, piping, casing, transition ductwork
and exhaust stack is present under any operating condition.
2. All components of HRSG system should be capable of being
completely drained. Low point drains should be provided for all
enclosures, ducts, piping, and coil assemblies. All drain
connections provided on coil assemblies should be piped together to
provide a single collection point.
3. Supplementary firing should be adopted as required and can be
achieved by duct burners.
4. If designed and constructed to ASME BPVC, the manufacturer
should obtain material certificates for all components, and all
required code stamps and certificates .
5. Superheater elements should be located and supported to prevent
vibration, sagging and misalignment
6. For greater efficiency economizers should generally be furnished
as part of an HRSG.
Configuration
Technical Parameter
| Cement production line capacity t/d | 1000 | 2500 | 5000 | 10000 |
| Boiler inlet flow Nm3/h | Kiln(front) | 60000 | 88000 | 243000 | 472000 |
| Kiln(tail) | 76000 | 170000 | 328000 | 612000 |
| Boiler inlet gas temperature℃ | Kiln(front) | 370 | 360 | 380 | 390 |
| Kiln(tail) | 360 | 320~360 | 330 | 330 |
| Rated evaporation t/h | Kiln(front) | 5.8 | 7.25 | 24 | 50 |
| Kiln(tail) | 7.5 | 10~15.8 | 20~24.6 | 35.5 |
| Rated steam pressure Mpa | Kiln(front) | 1.25 | 1.25 | 1.25 | 1.25 |
| Kiln(tail) | 1.25 | 1.25 | 1.25 | 1.25 |
| Rated steam temperature℃ | Kiln(front) | 340 | 330 | 350 | 360 |
| Kiln(tail) | 340 | 300~340 | 310 | 310 |
| Boiler structure | Kiln(front) | Vertical | Vertical | Vertical | Vertical |
| Kiln(tail) | Vertical | Vertical and Horizontal | Vertical and Horizontal | Vertical
|
Company Introduction
Established in 1985,Zhangjiagang Hua Dong Boiler Co.,Ltd.(trading
as HD Boiler),produces power plant; industrial; waste heat; waste
incineration; biomass; organic heat carrier and electric steam
boilers. Coupled with a comprehensive range of heating surfaces, HD
Boiler brings to the market a unique service including boiler
design , fabrication, installation, maintenance and replacement of
boiler pressure parts.
1. Fabrication area of 400,000 square meters
2. 150 Engineers
3. 600 Coded welders
4. 60 Licensed Inspectors(NDT Level-III instructors)
5. Class-A Licenses for Design and Manufacture Boiler
6. ISO 9001:2008 Quality System
7. ASME Certificate of Power Boilers
8. ASME 'S','U' and NB stamp authorization
