​Transmission Pathways and Performance Curves of Drying Equipment Fans

Transmission Pathways and Performance Curves of Drying Equipment Fans

During operation, to avoid discrepancies caused by variations in opening distance and thickness when installing and using drying equipment fans, attention must be paid to whether the fan's external dimensions and construction match the machine specifications. The internal structure and materials of drying equipment fans directly impact their service life and performance. To ensure the fan operates under necessary environmental conditions and maintains its service life, relevant performance or aging tests must be conducted during the sample testing phase. The model of a drying equipment fan determines its performance curve, which can be categorized into dimensional curves and dimensionless curves. The dimensionless curve serves as the basis for determining compliance with site requirements, while the dimensional curve forms the foundation for interpreting fan characteristics. Dimensional curves represent specific characteristics, while dimensionless curves represent universal properties. Flow coefficients and pressure coefficients can serve as benchmarks for fan number calculations. Specific speed is the basis for selecting fan models, while internal efficiency determines whether a model qualifies as a high-efficiency fan. Anti-corrosion fans primarily consist of glass fiber reinforced plastic components, offering excellent corrosion resistance. They are suitable for ventilation in corrosive environments such as petroleum and chemical industries. As long as fans generate a certain level of noise during operation, basic noise control measures are as follows: 1. Noise source control: The primary noise source in ventilation systems is the fan. Low-noise drying equipment fans can be selected. 2. Transmission path control: 1. Vibration isolation devices: Reduce transmission of structural noise. 2. Sound insulation devices: Directly lower noise levels. 3. Sound absorption devices: Improve sound absorption and reduce reverberation.