Zhangjiagang HuaDong Boiler Co., Ltd.
Zhangjiagang HuaDong Boiler Co., Ltd.
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Subcritical Recirculation boiler steam drum carbon steel 96mm thickness
Drum saturated steam is separated from the steam-water mixture discharged from the risers in its steam space and in the separating equipment installed in it.The steam drum is also a water storage vessel which accomodates the changes in water level during load changes and internal water treatment;therefore the steam drum size must be large enough to house the separating equipment and to contain the required quantity of water.
Functions
• Separation of saturated steam from the steam-water mixture produced by evaporating tubes.
• Mixing feed water from economiser and water separated from steam-water mixture,and re-circulate through the evaporating tubes.
• Carrying out blow down for reduction of boiler water dissoled solid concentration.
• Treatment of Boiler Water by chemicals.
Technical Parameter
e.g.
| TECHNICAL DATA OF DRUM | |
| Design Pressure | 210 kg/cm2(g) |
| Operating Pressure | 197kg/cm2(g) |
| Water Holding Captacity | 60m3 |
| Design Temperature | 369ºC |
| No of Cyclone Separator | 92(46×2) |
| No of Secondary Drier | 124 |
| OD of Drum | 1778mm |
| Thickness(Straight Portion/Dished Portion) | 155mm |
| Weoght of Drum without Internals | 214.7MT |
| No. | Details | Qty(In Nos) |
| 1 | DWLG&EWLI | 15(Both Side) |
| 2 | Test Tapings | 4 |
| 3 | Air Vent | 2 |
| 4 | Chemical Feed Nozzle | 1 |
| 5 | DWLG&EWLI | 15(Both Side) |
| 6 | CBD | 1 |
Quality Control
1. Fabrication area of 200,000 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
Company Introduction
Design and Manufacturing capacity
1. Two automatic coiler production lines
2. Hot bending to minimum bending radius 0.6D
3. Membrane wall tube bending , with horizontal and vertical panel bending machines
4. Panel fabrication for up to for 1000MW power plant boilers
5. Fabrication of CFB Boiler Cyclone Separators
6. Fabrication of Header to Chinese standards(GB), US standards (ASME), or EU standard (EN)
7. Broad range of heat treatment equipment including 10 furnaces, offering normalizing and tempering