Analysis of Volumetric Conveying Principle of Screw Pump

Apr 14, 2026

The screw pump occupies a significant position in the field of modern industrial fluid transportation as a high efficiency rotary positive displacement pump. Its core operating mechanism is established on the high precision meshing between the rotor and the stator, achieving fluid delivery by generating continuous volumetric changes between the suction and discharge chambers. As a forced displacement pumping system, this equipment can handle high viscosity and high solid content working conditions that are challenging for traditional centrifugal pumps, providing stable and reliable power support for industrial production.

Structural Characteristics of SWP Series Screw Pump

Based on general screw pump technology, the SWP series screw pump has enhanced operational performance through optimized design. The rotor of this series is manufactured from high strength stainless steel, while the stator is made of high performance elastomeric material. This combination grants the equipment unique advantages in handling media containing hard suspended particles. The spiral seal line formed by the meshing of the stator and rotor completely separates the suction and discharge chambers, providing the pump with an automatic valve like sealing function and enabling efficient multiphase mixture conveying of liquids, gases, and solids.

Volumetric Conveying Mechanism and Hydrodynamic Performance
The conveying process of the SWP series exhibits exceptional hydrodynamic stability. The liquid is pushed uniformly along the axial direction within the pump body, maintaining a low internal flow velocity and constant chamber volume. This motion ensures extremely high stability in output pressure and fundamentally eliminates vortex and agitation phenomena during transportation. For shear sensitive media, this gentle conveying characteristic effectively protects the physical properties of the material, ensuring consistent quality throughout the process.

Integrated Solutions for Operation Control and Maintenance
Regarding performance regulation, the flow rate of the SWP series screw pump is strictly proportional to its rotational speed. Combined with a reducer, it achieves precise stepless speed regulation to meet the stringent displacement requirements of various industrial processes. Furthermore, the equipment prioritizes maintenance convenience during the design phase. The specialized pump body structure significantly simplifies the replacement process for core wearing parts such as the rotor and stator. This integrated design not only reduces the total life cycle cost but also provides solid hardware assurance for high intensity operations such as drilling fluid processing and slurry transportation.