Boiler primary fan and its air duct
Thread Content
During the commissioning of the primary fan in the fluidized bed boiler of the power plant, the following issues were observed: when the load was increased to more than half of its maximum value, significant vibration occurred in the outlet duct. At the same frequency, the flow rate fluctuated between 72,000 and 79,000 m3/h, while the air pressure ranged from 5.75 to 5.95 KPa. Why was there such significant vibration and fluctuation? Does this situation affect the startup of the boiler?
During testing this device, it is essential to pay attention to the outlet pressure and inlet pressure; these values must comply with the various parameters specified in the fan’s operating instructions, and they cannot be ignored. This might be caused by excessively high outlet pressure.