Overview
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
| Year | 2020 |
| Dimensions | 1600mm |
| Design Pressure | 2.4MPa/FV(Shell); 24MPa(Tube) |
| Material | Carbon Steel |
| Classification | Class 1B |
| Number of Tubes | 1044 |
| Tubesheet Thickness | 260mm |
| Internal Bore Welded (IBW) | Internal Bore Welded (IBW) |
| Weight | 37.1T |
LP Feedwater Specification
| Year | 2020 |
| Dimensions | 1429mm |
| Design Pressure | 0.62MPa/FV(Shell); 3.4MPa(Tube) |
| Material | Arsenical Brass |
| Classification | Class 1B |
| Number of Tubes | 577 |
| Tubesheet Thickness | 60mm |
| Internal Bore Welded (IBW) | Expanded + Flared |
| Weight | 20.7T |
Downloads & Media
Further Information
Craig Malt +61 (0) 3 5274 3180
sales@thorntoneng.com.au
Project Video
In this timelapse video, you can see the tube bundle being inserting into the shell, completing a key milestone for the LP heater fabrication.
Photo Gallery
