The RF-40-130 Stainless Steel Cyclone Aerator is a new-generation high-efficiency aeration device developed based on traditional spiral aerators and integrated with multiple advanced structural designs. Key components are manufactured from stainless steel, significantly extending the equipment’s service life.
It features large service coverage, low air resistance, stable and reliable operation, non-clogging performance, and long service life.
The product is widely used in industrial wastewater and municipal sewage treatment aeration systems, showing outstanding advantages in wastewater with high suspended solids, high hardness, and strong scaling tendencies.
Product Features
The RF-40-130 Stainless Steel Cyclone Aerator has the following characteristics:
a. Full-tank circulation
Its unique structure allows the water beneath the aerator to remain in continuous motion, ensuring no oxygen dead zones throughout the aeration tank.
b. Multi-layer air cutting system
The internal multi-stage cutters enable thorough gas–liquid mixing and multi-level air cutting, improving oxygen transfer efficiency.
c. Non-clogging & maintenance-free
The aerator operates without blockage under both continuous and intermittent conditions, requiring minimal maintenance.
d. Large flow channel design
Especially suitable for wastewater with high suspended solids, high hardness, and scaling characteristics, with a service life exceeding 10 years.
Performance Parameters
| Item | Unit | RF-40-130 |
| Service area | m² | 5–7 |
| Air flow rate | m³/min | 0.5–1.5 |
| Pressure loss | kPa | 0–1 |
| Oxygen transfer capacity | kg/h | 3–6 |
| Oxygen utilization rate | % | 20–25 |
| Power efficiency | kg/kWh | >5 |
| Installation water depth | m | >4 |
| Material | — | 304 / 316L / 2205 + ABS |
Computational Fluid Dynamics (CFD) Simulation
To ensure optimal product performance, extensive testing has been conducted on key parameters, including air inlet configuration, water inlet design, and cyclone angle.
During product development, a large number of experimental tests were carried out on different cyclone aerator models. Based on experimental data, Computational Fluid Dynamics (CFD) simulations were performed. Three-dimensional modeling was used to analyze:
Internal flow velocity
Gas–liquid mixing conditions
Pressure distribution
Oxygen concentration profiles
Based on these analyses, the aerator structure was optimized and improved multiple times. Field tests under real operating conditions confirmed excellent oxygen transfer efficiency while maintaining extremely low pressure loss.
Flow Field Optimization Analysis
Through computer simulation, the optimal structural design of the cyclone aerator was determined.
Further simulations were conducted to analyze its operating condition in water, including:
Upward flow velocity distribution
Downward flow velocity distribution
(Note: Arrow length represents flow velocity magnitude; arrow direction represents flow direction.)
Simulation results show a strong upward flow in the central area above the aerator and clear downward flow at the edges, forming an effective large-scale circulation within the aeration tank.
This circulation ensures uniform oxygen distribution and excellent mixing performance.
