The hydrogen production induced draft fan makes unusual noises on rainy days, but these noises gradually disappear when the weather clears up. Please help analyze this issue
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The hydrogen production induced draft fan makes unusual noises on rainy days, and these noises gradually disappear when the weather clears. Could you help analyze the reason?
Check the source of the abnormal noise: whether the exhaust fan is insulated, and whether there is vibration on rainy days
Reply to 2# Zhang Jiahong: The exhaust fan lacks insulation. We have contacted the maintenance team, who said that after shutting down the machine, we should rotate it to check whether there are any debris in the passage. As the noise gradually decreased, we maintained operational monitoring temporarily, and the abnormal sound from the fan disappeared the day after.