Specific Introduction to High-Pressure Centrifugal Fans

Specific Introduction to High-Pressure Centrifugal Fans

1. High-pressure centrifugal fans are machinery for compressing and conveying gas. From an energy perspective, they convert the mechanical power of prime movers into gaseous energy. Fan Classification and Application: By operating principle: High-pressure centrifugal fans compress gas through rotating blades. By altering gas volume: Positive displacement fans supply gas by compressing its volume. 2. Classification by airflow direction: High-pressure centrifugal fans draw air axially into the unit, where centrifugal force compresses it, directing flow primarily radially outward. Axial fans channel air toward the rotating blades along the shaft axis. Through blade-gas interaction, compression occurs with flow predominantly along the cylindrical surface. Mixed-flow fans direct gas into the rotating blade channel at a specific angle relative to the main shaft, flowing along a near-conical path. High-pressure centrifugal fans: Air passes through the rotating blade channel, where blades elevate pressure. 3. Corresponding classifications for high-pressure centrifugal fans and low-pressure fans (under standard conditions): Low-pressure centrifugal fans: Full pressure P ≤ 1000 Pa Medium-pressure centrifugal fans: Full pressure P = 1000–800 Pa High-pressure centrifugal fans: Full pressure P = 800–3000 Pa Low-pressure axial fans: Full pressure P ≤ 500 Pa High-pressure axial fans: Full pressure P = 500–3000 Pa