Centrifugal fan safety operating procedures
1. Wear protective gear
The basic protective equipment for wind turbine operators includes safety helmets, safety shoes, work protective clothing, earplugs, etc., which must be stored in special cabinets; they must be dressed neatly before operating or maintaining equipment, and must be replaced immediately if any damage is found.
2. Centrifugal fan start-up operating procedures
(1) Inspection and preparation before start-up
Check whether there are obstacles around the fan, whether the anchor bolts are loose, whether the air intake baffle is closed, whether the grounding wire of the motor is in good condition, whether the wheel cover is fastened, whether the inspection door of the fan and the observation hole are well sealed; Whether the system is normal, whether the regulating valve is flexible, whether the starter is stuck; prepare necessary driving tools, such as valve hooks.
(2) Start-up operation steps
Please test to confirm whether the address is correct; start the fan motor, and slowly open the air intake baffle to the required opening (adjust the air volume); if equipped with a frequency converter, adjust the air volume and air pressure through the speed, and adjust the frequency to the value specified by the process.
3. Centrifugal fan operation safety operation rules
Make sure that the fan has no air leakage, good lubrication, abnormal noise, vibration, overheating, etc.; it is strictly forbidden to touch the running part of the fan or open the observation door. In the event of an emergency, such as mechanical damage, the energy must be isolated first to prevent secondary damage, and then managed according to the situation; if someone accidentally gets an electric shock, the power supply should be cut off immediately and corresponding measures should be taken first. Take relief measures after verifying that the person has no power.
4. Safety operation rules for maintenance
When maintaining and overhauling the equipment, power-off and locking procedures must be performed, and emergency stop and zero position must be pressed on the spot; the corresponding work permit must be entered for fan operation; after the overhaul operation is completed, please clean up the site and close the overhaul door.
5. Safety operation rules for centrifugal fan shutdown
When stopping, first slowly close the air intake baffle (or reduce the inverter frequency to 0), then stop the motor, and then close the cooling water valve.