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Regenerative Turbine Pumps


Regenerative Turbine Pump Overview

The regenerative turbine pumps are rotodynamic machines that combine positive displacement pumps and the flexibility of the centrifugal pump. These pumps are best for propagating liquid at a high pace and are often used in industrial settings. These pumps maintain a lower flow and work best with low viscosity for liquids near their boiling point. The regenerative turbine pumps have excellent performance, reliability, and operations making them ideal for industrial use. Regenerative turbine pumps remain efficient despite the type of liquid they are working with, ensuring  pulsation or cavitation does not impact the liquid pumped. The regenerative turbine pumps are also called turbine pumps because of their design and mechanism.

Regenerative Turbine Pumps: Operations and Working

Although the regenerative turbine pumps are essential rotodynamic machines, their working resembles positive displacement pumps. They have a rotating, non-contacting impeller, which moves the liquid through the pump.

The pump also consists of a freewheeling disc with multiple buckets to move liquid around. The liquid enters the pump through the suction port in the pump and then accelerates through it at high speed. You will see the liquid pacing through the machine in the casing volute, around the cells.

Regenerative Turbine Pump: Small Size, Big Benefits

The regenerative turbine pump usually has a smaller size but offers additional benefits. These benefits include the following:

High Gas Content Tolerance

Most gas pumps create extensive pressure in the machine, causing long-term wear and tear. However, the regenerative turbine pumps allocate the liquid equally through the whole mix, allowing the pressure to stay consistent.

Maintained Flow Rate

Many pumps can face fluid flow fluctuations because of an enclosed system. However, the regenerative turbine pumps ensure that the peripheral pumps can continue operations without impacting the flow rate.

Low Axial Thrust

The axial thrust can cause undue stress on the pump mechanism, causing long-term damage to mechanical parts. Fortunately, regenerative turbine pumps can counter the stress because of their low axial thrust. This way, the axial does not experience extreme pressure and can function better for longer. Moreover, these pumps are also best for fully calculated smaller flows.

Regenerative Turbine Pumps: Differences

These pumps are best where a low pump rate and large heads are needed. They are also ideal for pure, non-abrasive liquids and several other applications. Industries such as chemical, mechanical engineering, recirculation, etc., all use regenerative pumps. However, other popular areas where you can find these regenerative turbine pumps include the following:

  • Biofuel systems
  • Bioreactors
  • Dissolved air flotation
  • Drinking water purification
  • General process engineering
  • Neutralization
  • Raw oil-water separation