Trouble Shooting For Cooling Towers

TROUBLE SHOOTING FOR COOLING TOWERS 

#	Problem / Difficulty	Possible Causes	Remedies/Rectifying Action
1.	Excessive absorbed current / electrical load	1. Voltage Reduction	Check the voltage
		2 a. Incorrect angle of axial fan blades	Adjust the blade angle
		2 b. Loose belts on centrifugal fans  (or speed reducers)	Check belt tightness
		3. Overloading owing to excessive air flow-fill has minimum water loading per m2 of tower section	Regulate the water flow by means of the valve
		4. Low ambient air temperature	The motor is cooled proportionately and hence delivers more than name plate power.
2.	Drift/carry-over of water outside the unit	1. Uneven operation of spray nozzles	Adjust the nozzle orientation and eliminate any dirt
		2. Blockage of the fill pack	Eliminate any dirt in the top of the fill
		3. Defective or displaced droplet eliminator	Replace or realign the eliminators
		4. Excessive circulating water flow  (possibly owing to too high pumping head)	Adjust the water flow-rate by means of the regulating valves. Check for absence of damage to the fill
3.	Loss of water from	1. Float-valve not at correct level basins/pans	Adjust the make-up valve
		2. Lack of equalizing connections	Equalise the basins of towers operating in parallel
4.	Lack of cooling and hence increase in temperatures owing to increased temperature range	1. Water flow below the design valve	Regulated the flow by means of the valves
		2. Irregular airflow or lack of air	Check the direction of rotation of the fans and/or belt tension (broken belt possible)
		3a. Recycling of humid discharge air	Check the air descent velocity
		3b. Intake of hot air from other sources	Install deflectors
		4a. Blocked spray nozzles (or even blocked spray tubes)	Clean the nozzles and/or the tubes
		5. Scaling of the fill pack	Clean or replace the material (washing with inhibited aqueous sulphuric acid is possible but long, complex and expensive)

Courtesy: beeindia.gov.in

Hope you will find above details inline. If you have any query or need your cooling tower cleaning services please contact us for more help and support.

L K Chatuvedi
CEO - Wetpoint Aqua Equipments (P) Ltd
Manufacturer of all kind of Industrial Cooling Towers and Spares
Phone: +91-9302.214.784
Email: ceo@wetpointcoolingtowers.com