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Air handling Methods

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  1. Air handling Methods

  2. Recirculation of discharge • Liquid ring pump • Dry ring pump • Ejector • Eccentric vane pump

  3. Rotary Air Extraction Pump

  4. Central Priming System

  5. To Vacuum Pump Automatic Vent Valve Vacuum Tank (with Lever Controller) Pump Suction

  6. Submerged Pump

  7. Deck • Hydraulic Room • Hydraulic Pump • Accumulator • Pipeline to Hydraulic Motor • Hydraulic Motor

  8. Hydraulic Motor • Variable speed • Power • High efficiency • Energy consumption according to actual need • Soft start (no inrush peaks)

  9. Control • Independent control for each pump • Accurate, variable control • Low mechanical wear (impeller/casing) • Low cavitation • Programmable • Minimized discharge time • Minimum cavitation • Liquid level • Specific gravity • Connection to cargo-monitoring

  10. Stripping Procedure • When the cargo tank is empty, the cargo stripping pump valve has to be opened and the main cargo valve to be closed. • The running cargo left is purged by means of inert gas or air via the stripping line pipe into the cargo line on deck. • During purging/stripping procedure, the pump should be kept running ( the impeller acts as a dynamic foot valve) until the cargo pipe has purged empty • This procedure will generate an absolute minimum of the remaining cargo in the pump well

  11. Pump Body • It is welded or flanged to the pipestack. • The hydraulic motor is very compact and located inside the pumphead and surrounded by return hydraulic oil. • Short independent shaft supported by bearings lubricated by hydraulic oil • Connected to the impeller.

  12. Features • Pump material – stainless steel • Stepless capacity control/remote operation • Single stage, single suction, axially balanced • Smooth surface unit – easy to clean • Anti-rotation brake – loading thru’ pump • Bearing lubricated by hydraulic oil • Designed for dry running • In tank replacement without interfering hydraulic section

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