Vibrations and abnormal noises in the waste heat boiler
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(Designed catalytic unit with a capacity of 185,000 standard cubic feet per hour.) The air flow rate was 175,000 standard cubic feet per hour; noises were heard inside the residual boiler. By slowly opening the bypass line of the residual boiler, the noises ceased and normal operation was restored. Seeking guidance from experts in catalysis!
Is it water hammer in the economizer inside the waste heat boiler?
Is it the superheating section that’s making noise or the drum?
Due to the high line speed of the flue gas scouring the coiled tube, vortices were generated on the back side of the coiled tube. A large number of small vortices mix together to create resonance, accompanied by a muffled noise and vibrations, just as a machine has a critical speed – it reaches a critical point. When you break the critical condition, the fault is eliminated. It’s just my personal opinion; I’m not sure if it’s correct