We helped a valued client re-design, manufacture and install high pressure (HP) and low pressure (LP) feedwater heaters. The heaters are used in the coal-fired electricity generation process and replaced existing equipment.
The HP heaters are vertical type, “U” tube head down, surface contact, with integral drain colling de-superheating sections. Adding to the complexity, the HP heaters incorporated Internal Bore Welding (IBW), which requires specialist skills and equipment.
The LP heater is a horizontal, “U” tube type, surface contract heater with an integral subcooled zone and vent pipe to remove non-condensable gases.
HP Feedwater Specification
|Design Pressure||2.4MPa/FV(Shell); 24MPa(Tube)|
|Number of Tubes||1044|
|Internal Bore Welded (IBW)||Internal Bore Welded (IBW)|
LP Feedwater Specification
|Design Pressure||0.62MPa/FV(Shell); 3.4MPa(Tube)|
|Number of Tubes||577|
|Internal Bore Welded (IBW)||Expanded + Flared|
Downloads & Media
Craig Malt +61 (0) 3 5274 3180
In this timelapse video, you can see the tube bundle being inserting into the shell, completing a key milestone for the LP heater fabrication.