Efficient low-noise retroverted impeller

• Main Author: SU HAIMING
• Format: Patent
• Language: Chinese; English
• Published: 17.01.2023
• Subjects: BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT PUMPS; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; WEAPONS

The utility model relates to the field of ventilation equipment, and discloses an efficient low-noise backward-inclined impeller which comprises an impeller front disc, an impeller rear disc arranged on the right side of the impeller front disc and impeller blades welded to the left side of the impeller rear disc, the impeller blades are arranged in a twisted mode and are of a double-twisted structure, and the surfaces of the blades extend in multiple directions. Therefore, the change of multi-directional speed airflow is effectively adapted, and airflow flow separation in the internal flow channel is reduced. According to the high-efficiency low-noise retroverted impeller, due to the fact that the sawtooth-shaped structures are arranged on the front edge portions of the blades, aerodynamic noise generated when the impeller works can be effectively reduced, the working efficiency of the impeller is improved, meanwhile, the weight of the blades is reduced, working energy consumption of the impeller is effectiv