Services Used: Engineering Design, Project Management, Fans & Air Handling
This engineering project involved the design, supply and installation of an impeller and shaft (rotor assembly) for a Boiler ID fan. The project was completed by Mainstream Engineering’s ASEL Fans and Air Systems division.
The design process included:
- Impeller design and detailed drawing including material specifications and welding procedures. Impeller manufactured according to AS1554.4 Cat FP
- Finite Element Analysis (FEA) to determine stress and optimise impeller materials
- Weld, manufacturing and inspection procedures
- Project manage impeller and shaft manufacture and inspection
- Supervision of impeller and shaft installation
The project was successfully completed on time and within budget. The rotor assembly was installed during a planned shut and has been operating successfully since.
Details of the rotor assembly as follows:
Design: Centrifugal backward inclined blade
Impeller diameter: 2,420 mm
Speed: 710 rpm
Control: Variable Speed Drive (VSD)
Rotor mass: 2,100 kg
Materials: Quenched and tempered steel
Design temperature: 140 C
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