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May 11, 2022 View:

The Principle And Application Advantages Of The Lobe Rotary Lobe Pump

The rotary lobe pump is a self-priming volumetric pump. It is characterised by low speed, small size, light weight, easy disassembly and maintenance, etc. At the same time, it has an extremely strong self-priming capacity and can transport a wide range of liquids.

The working principle of rotary lobe pumps

The two rotors mounted on two shafts are driven by synchronous gears to rotate against each other. A small sealed cavity is formed between the rotor and the pump casing. When the rotor is rotating, the air is removed from the inlet end to form a vacuum and the material is drawn in. The direction of the material conveyed by the lobe pump can be reversed by changing the direction of rotation of the rotor.

lobe pump

Structure of the rotary lobe pump

The rotary lobe pump consists of motor, reduction gear box, coupling and pump body. The pump body consists of bearings, synchronous gears, isolation chamber, pump casing, liner plate, shaft seal, rotor, pump cover, pump shaft, etc.

lobe pump

Advantages of rotary lobe pumps

1、The rotary lobe pump has a strong self-priming force without manual pumping, with a maximum suction range of 8.5m; the conveying flow range is 1-2000m/h.

2. The maximum medium viscosity is 100,000 cp and the maximum solids content is 60% of the slurry.

3. Forward and reverse rotation is possible, suitable for loading and discharging scenarios, as well as for sewage treatment areas where backwashing of the filter membrane is required.

4、The non-clogging design ensures the passage of large diameter materials, with a maximum passage diameter of 80mm.

5、Triple flow precision casting mould and five-axis linkage process empowered with the pump, making it highly efficient, energy saving and low noise.

6. The double support structure allows the pump to run more stably and the output pressure can be up to 1.8Mpa.

7、Smooth conveying, small pulsation, low shear force, can convey mixed media of gas, solid and liquid as well as media sensitive to cut-off, such as liquid bombs.

8、Back cover extraction design, no need to disassemble the pump body and pipeline for maintenance

9. Low speed of 10-650r/min, wear-resistant rubber liner with axial and radial wear plates for longer pump operation and low failure rate.

10、For different working conditions, special devices such as safety valves, heat preservation and cooling can be configured to achieve different working condition requirements.

11、Configuration of reducer to adjust the motor speed, so as to achieve the purpose of adjusting the flow.

12、The application range of the rotary lobe pump is extremely wide and applicable, different materials and different rotors can be used according to different working conditions.