A centrifugal pump impeller with a biomimetic microstructured erosion-resistant surface and a method of making the same
By using regionalized biomimetic microstructure design, precise protection is provided for different areas of the centrifugal pump impeller, solving the erosion and wear problem of traditional impellers when conveying solid particulate media, and improving the impeller's erosion resistance and service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- LIAONING TECHNICAL UNIVERSITY
- Filing Date
- 2026-05-20
- Publication Date
- 2026-07-17
AI Technical Summary
When transporting media containing solid particles such as mud, sand, and slurry, traditional centrifugal pump impellers suffer severe erosion and wear on the blade surface, especially at the blade inlet edge, the middle of the pressure surface, and the blade root area. Existing coatings are prone to peeling, and the reinforced materials are prone to brittle fracture.
The blade surface is divided into three regions, A, B and C, with micro-dimpled structures, V-groove structures and convex hull structures respectively. Through the synergistic effect of the biomimetic prototype, precise protection is provided against the erosion mechanism of different regions. The feature size is matched with the particle size and is prepared by 3D printing or laser processing.
It achieves comprehensive erosion protection for the blades, extends the service life of the impeller, and is suitable for mass production.
Smart Images
Figure CN122407597A_ABST