As the core component of ventilation and heat dissipation equipment, plastic air impellers have become an ideal choice in the fields of home appliances, industrial machinery, new energy equipment and other fields with their lightweight, efficient, corrosion-resistant and durable properties. Its design combines fluid mechanics and materials science, so that each fan blade has both air supply efficiency and structural stability.
In terms of material selection, high-strength modified engineering plastics are used, covering multiple categories such as ABS, PP, nylon, etc. Among them, the reinforced nylon material is added with 30% glass fiber, with an impact strength of 12kJ/m², which can withstand centrifugal impacts during high-speed rotation; the weather-resistant PP material has passed the extreme temperature test of -40℃ to 100℃, and is not easy to brittle or deform in outdoor equipment; the flame-retardant ABS material meets the UL94 V0 level standard, and is self-extinguished in open flames, and is suitable for scenarios such as home appliances and charging piles that require high safety requirements. All materials are RoHS environmentally friendly and do not contain heavy metals and harmful additives to meet the ventilation needs of food-grade equipment.
The structural design follows aerodynamic principles, and the blade radian is optimized by CFD simulation and the angle is accurate to 1° level. Common 3-7 blade designs have their own emphasis: 3 The air volume and low resistance of the blade impeller are suitable for industrial exhaust fans; 5 The air supply of the blade impeller is uniform and suitable for air conditioning indoor units; 7 The blade impeller runs smoothly and has low noise, and is mostly used in air purifiers. The wheel hub and blade adopt an integrated injection molding process to avoid structural weaknesses caused by welding or assembly. The concentricity error is ≤0.1mm, there is no obvious shaking during high-speed rotation, and the operating noise can be controlled below 40 decibels.
Performance takes into account both efficiency and stability. In the air volume test, the 5-impermetal impeller with a diameter of 200mm has a supply air volume of 300m³/h at a speed of 1500r/min, which is 15% energy-saving than traditional metal impellers; in terms of air pressure, through the "drain tail" design at the end of the blade, the static pressure is increased by 8%, which can cope with the resistance loss in pipeline ventilation. Wear-resistant bearings are combined with dynamic balance correction, and their service life can reach more than 8,000 hours, which is equivalent to the household fan operating for more than 3 years.
It has a wide range of adaptation scenarios, and can be competent from home equipment to industrial systems. In the field of home appliances, it can provide heat dissipation and ventilation for refrigerators and microwave ovens, and its temperature resistance characteristics ensure stable operation in the high temperature environment inside the equipment; in the field of industrial, it is adapted to cooling towers and ventilation ducts, and corrosion-resistant materials are not afraid of moisture or slight chemical gas erosion; in the field of new energy, as the core of cooling of charging piles and energy storage cabinets, the flame retardant characteristics and efficient ventilation capabilities ensure the safe operation of the equipment.
The installation convenience is also outstanding. The central shaft hole of the impeller adopts a standard design and is adapted to a variety of motor shaft diameters. It is fixed by snaps or screws, and can be quickly replaced without professional tools. The surface of the blade is smooth and easy to clean, and the oil or dust can be wiped directly with a damp cloth, which is low in maintenance.
This plastic air impeller, made of scientific design and high-quality materials, shows strong strength in the field of ventilation and heat dissipation, providing stable, efficient and safe airflow solutions for all types of equipment.
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