Boiler ID Fan Impeller Assembly

Design, supply and installation of an impeller and shaft (rotor assembly) for a Boiler ID fan.

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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