What are the methods for cooling tower maintenance?

Cooling tower maintenance method:

The maintenance process of the cooling tower is divided into three stages, namely, cleaning and maintenance after shutdown, inspection and commissioning before starting, and inspection inspection during official startup.

(1) Cleaning and maintenance after the cooling tower is shut down

1, water system

1 Check the main water pipe, water distribution pipe and nozzle of the cooling tower for damage and looseness, and repair and fix it in time. Thoroughly remove the dirt inside the water pipe and the nozzle to ensure that the water pipe is unblocked and the nozzle is evenly distributed.

2 Rinse the cooling tower water tray and the water outlet filter cover thoroughly to avoid the accumulation of scale and dirt. After the cleaning is completed, the drain Valve should be opened, and the water in the water tray should be drained to avoid freezing.

3 Check if the water tray and the tower foot are leaking. If there is any leak, fix the glue in time.

2, cooling system

1 Clean all heat-exchange materials (fillers) of the cooling tower, thoroughly remove the scale and dirt between the hot material surface and the holes to ensure the cleanliness of the heat-exchange materials. Repair and replace when disassembling heat exchange materials. Pay attention to the tight placement when filling, leaving no gaps.

2 Clean the water curtain and silencer blanket to remove dirt. Repair and replace the damaged area. Water curtains are required to be placed tightly to prevent drifting. Fill the cooling tower with water, check for water leaks (especially at the tower connection), and replace the seal if it leaks.

3, the transmission system

1 Motor: Check whether the motor's terminal is intact, the motor rotates normally, the motor wire box is sealed, the motor bearing is lubricated, and the motor casing is repainted. For long-term downtime, it is recommended that the owner run the motor for at least 3 hours per month to keep the motor coil dry and lubricate the bearing surface.

2 Reducer: Check if the reducer rotates normally. If there is abnormal sound, replace the reducer bearing immediately.

3 belt, pulley: adjust the top wire, loosen the belt, extend the life of the belt. Inspect the belt for damage or cracks. If necessary, it is recommended that the owner replace the new belt. Check the pulley, the level of the motor frame, tighten the loose bolts, and replace them with rust bolts.

4 Fan: Clean the surface of the fan blade, check the fan blade angle, the fan blade and the air gap, and adjust it.

4, the appearance of the tower

1 Thoroughly clean the wind raft, tower and air guide to ensure the appearance is clean and beautiful.

2 Retighten the bolts at each part and replace the rust bolts.

3 Check the appearance of the tower body for damage or cracks and repair it in time.

4 Check whether the vertical joint of the tower body wall is tight and re-paint the rubber if necessary.

5, cooling tower accessories

1 Check the automatic water supply device - whether the float is damaged or not, and whether the work is normal. Abnormalities were found to be repaired and replaced in time.

2 Re-tighten the iron bolts of the cooling tower, replace the rust bolts, and paint the rusted iron parts.

3 Check the inlet and outlet pipes, the tower flange of the water supply pipe for damage, water leakage and cooling tower cleaning and maintenance. It is recommended that the owner seal the cooling tower with a color strip to prevent debris from entering the cooling tower. internal.

(2) Inspection and adjustment before the cooling tower is turned on

1 Remove the windshield cover, adjust the top wire, and adjust the belt tightness.

2 Carefully check whether the motor and reducer of the cooling tower drive system are operating normally.

3 Check and clean the water tray of the cooling tower and the dirt at the filter net, check the water tray, seal the tightness of the tower foot, adjust the position of the float ball, and make the water level of the water tray meet the requirements for use.

4 Adjust the fan blade angle and measure the motor current to achieve the best working condition.

5 Adjust the cooling tower inlet and outlet valves to make the cooling tower water flow meet the requirements. Required to have, officially boot.

(3) Inspection and inspection during cooling tower operation

1 Regularly inspect the cooling tower in operation, solicit user opinions and understand the use of the cooling tower.

2 Carefully test the technical data of cooling tower inlet and outlet water temperature and motor running current.

3 Carefully check the operation of the gears such as motors and reducers. Check the actual working conditions of the water distribution system.
4 Found the fault and deal with it immediately.