Replacement of the fan of a Polacel cooling tower

We were asked by a Rotterdam vegetable oil refinery to replace a fan of a Polacel cooling tower. The existing fan was a 14-foot fan with aluminium blades.

Conditions set by the customer:

  • It must be an Atex fan. (zone II 2G, T1-T6)
  • It must be more efficient than the existing fan.
  • It must be quieter than the existing fan.
  • Account must be taken of the fans of the other existing cooling towers to keep as few as possible replacement parts in stock.
Remplacement ventilateur tour de refroidissement

Almeco supplied and installed a 14-foot Atex fan with the following properties:

Diameter of the impeller 14 feet
Number of blades 6
Speed 227 rpm
Execution Atex (zone II 2G, T1-T6)
Blades Glass fibre-reinforced polyester - anti-static - self-extinguishing
Clamp block/clamping ring Hot-dip galvanised/steel
Hub disk Hot-dip galvanised
Hub Steel with special antistatic coating
Bolts and nuts Hot-dip galvanised (A2 possible without surcharge)

Work carried out by Almeco:

  • Complete maintenance of the cooling tower
  • Disassembly of the existing drive gear
  • Replacement of the gearbox with an overhauled gearbox supplied by the customer
  • Installation of new drive shaft and alignment of this shaft
  • Installation of fan supplied by Almeco
  • Vibration checks on the installed fan for control purposes (balancing was not necessary)

The cooling tower with the new fan is now operational again.