Analysis of the Causes of Damage to the Moving and Stationary Blades of the Axial Flow Fan in a Catalytic Cracking Unit with an Annual Output of 2.1 Million Tons
Analysis of the Causes of Damage to the Moving and Stationary Blades of the Axial Flow Fan in a Catalytic Cracking Unit with an Annual Output of 2.1 Million Tons
The article mainly analyzes the fundamental reasons for the manual shutdown of axial flow fans after undergoing unit overhaul,from normal startup to short period of time when the rotor blades break.Research has found that the fracture texture of blades is mostly fatigue fracture,and the root cause is that the unit operates in the stall zone at low static blade angles,high speeds,and for a long time,and the blades experience fatigue fracture due to rapid flutter.
关键词
动静叶片/疲劳断裂/低静叶角度/旋转失速
Key words
moving and stationary blades/fatigue fracture/low static blade angle/rotating stall
维普
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