一种离心风轮及新风机
By optimizing the structural parameters of the volute and impeller and the blade design, the noise problem of centrifugal impellers under high static pressure was solved, realizing a centrifugal impeller design with low noise, high efficiency pressurization and compact structure, which is suitable for fresh air fans and other electrical equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- MIDEA GRP WUHAN HEATING & VENTILATING EQUIP CO LTD
- Filing Date
- 2022-11-29
- Publication Date
- 2026-07-17
AI Technical Summary
Existing centrifugal impellers are prone to generating noise at high static pressures, which affects the user experience.
By optimizing the structural parameters of the volute and impeller, the area ratio of the blades is set to 2.0 to 2.5, the distance between the volute tongue and the impeller is 0.1 to 0.2 times, the height of the volute sidewall protrusion is 4 mm to 10 mm, and the blades are designed with a gradual change between the pressure surface and the suction surface. The airflow path is optimized to reduce noise and flow loss.
It effectively reduces or eliminates noise, improves the pressurization capacity of the volute, reduces flow loss, has a compact structure, low cost, low air volume attenuation, and provides a quiet and comfortable fresh air environment.
Smart Images
Figure CN115788951B_ABST