Induced Draft Fan or ID fan is used to create a vacuum or negative pressure in a system like Steam boiler or Thermal Oil Heater. Working Principle: Induced draft Fan is also used to identify the combustion process used in large boilers.
Precaution when dissembling
1) The inner structure of the fan and the dissembling procedure should be well identified through sectional drawings before dissembling, and for the easy reassembly later, match marks should be recorded.
2) Take good care of the dissembled parts not to be damaged, and wrap them with vinyl cover not to be attached by water, dust and sand.
3) Record the installation dimension for the fan and clearance dimension of the inlet cone for the later reassembly.
4) Perform regular maintenance job to each part. Foregoing consideration concerning the treatment method can make reassembly procedure faster.