Alloy Customized Heat Recovery Steam Generator for Power Plant with ASME Standard
☺Product Introduction
HRSG 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 |
☺Features
Kiln (AQC) HRSG Features
1, Modular assembly structure, reliable sealing expansion
2, Adopt wear fin tubes, boiler pressure parts life assurance
3, Unique flash technology, the boiler outlet temperature is reduced to below 90ºC
Kiln (SP) HRSG Features
1, Heating surface tubes and headers with privildged connection structure, reducing mechanical shock and vibration
2, By mechanical vibration cleaning mode, continous cleaning mode little impact on system operation
3, Set sealed scraper gray machine, greatly reducing dust tail.
☺Attention
- 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.
- 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.
- Supplementary firing should be adopted as required and can be achieved by duct burners.
- If designed and constructed to ASME BPVC, the manufacturer should obtain material certificates for all components, and all required code stamps and certificates .
- Superheater elements should be located and supported to prevent vibration, sagging and misalignment
- For greater efficiency economizers should generally be furnished as part of an HRSG.
☺Parameters
| Cement production line capacity t/d | 2500 | 3500 | 5000 |
| Boiler inlet flow (Nm3/h) | Kiln(front) | 96800 | 142000 | 192000 |
| Kiln(tail) | 173000 | 241000 | 369000 |
| Boiler inlet gas temperature℃ | Kiln(front) | 380 | 420 | 395 |
| Kiln(tail) | 365 | 360 | 355 |
| Rated evaporation t/h | Kiln(front) | 2/9.6 | 3/17 | 3.2/21.3 |
| Kiln(tail) | 4.2/16.2 | 5.3/23 | 10.5/32 |
| Rated steam pressure Mpa | Kiln(front) | 0.2/2.4 | 0.2/2.4 | 0.2/2.4 |
| Kiln(tail) | 0.2/2.4 | 0.2/2.4 | 0.2/2.4 |
Certification
☺Company Profile
Hua Dong Boiler Co., Ltd. is a high-tech enterprise specialized in manufacturing boilers. Established in early 1985s, has two manufacturing bases, this company covers 400,000 ㎡ with fixed assets amounting to USD 110,000,000. There are 1100 employees including 150 technicians and 600 coded welders. Hua Dong holds the manufacturing licenses for Grade A boilers and Grade A1&A2 pressure vessels issued by Chinese General Administration of Quality Supervision, Inspection and Quarantine; also it holds the "S" and "U" "NB" stamps issued by American Society of Mechanical Engineers; meanwhile, this Company has passed the certification of ISO9001, SO3834, EN12952 Quality Management System.
☺Contact us
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