Zhangjiagang HuaDong Boiler Co., Ltd.
Zhangjiagang HuaDong Boiler Co., Ltd.
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Product Description
Counted on our professional knowledge, we cater to the needs from customers in renovation and modernization of their exsiting boilers. We have undertaken boiler air preheater and economzier replacement service for many years.
The purpose of the air preheater is to recover the heat from the flue gas(exhaust gases) from the boiler to improve boiler efficiency. Incidentally the gases are sent to the chimney or stack at lowered temperature so that the design of the ducting and the stack becomes simplified. Also it controls the temperature of gases coming out of the stack.
Different types
For the use in Steam Generators (boilers)in Thermal power stations of Utility power stations, there are two types of design of the Airpreheaters. One is a tubular type built into the boiler outlet Flue_gas ducting and another one is of the regenerative type known as Ljungstrom (named after the name of inventor) Regenerative Air Pre Heater(RAPH),a rotating type. This may be horizontal (now very common in power generation utilities) or vertical.
Parameter
| Name | Thermal efficiency improving coal fired industrial steam boiler combustion APH air preheater |
| Material | Carbon steel or equivalent |
| Structure | vertical |
| Tubes | enameled seam or seamless tubes |
| Tube OD | as required |
| Enamel thickness | 0.34+/-0.06mm |
| Size | Customzied design |
Product advantages
1. High corrosion resistance property;
2. Small covering area;
3. Pipe and tube plate in every link between separated, the heated bilges cold heat distortion is not bound to avoid stress destruction;
4. Single pipe, tube single or parts of equipment failure does not affect the heat normal operation, two fluid were heat tube, can go outside fin
Certifications
Company Information
Fabrication area of 200,000 square meters
150 Engineers
600 Coded welders
60 Licensed Inspectors (including NDT level-lll instructors)
Grade-ALicenses for Design and Manufacture boiler (issued by the State Administration of Quality Supervision and Inspection)
ISO 90001:2008 Quality System
ASME Certificate of Utility Boiler
ASME‘S’ , ‘U’ and NB stamp authorization