How to Properly Shut Down a Cooling Tower

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How to Properly Shut Down a Cooling Tower | GetChemREADY
Welcome to our guide on the Dry Lay-Up process for cooling towers, an essential practice for extended shutdowns. This process is crucial for preventing corrosion and controlling bacteria, ensuring the safety and longevity of your cooling systems.
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Disclaimer: This publication and the information included in it are not intended to serve as a substitute for consultation with a water treatment professional. Specific issues, concerns and conditions always require the advice of appropriate water treatment professionals. Please contact us at our website if you have any questions or are seeking professional treatment.
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Dry lay-up is key when your cooling tower faces a long-term shutdown. It's about more than just turning off the system; it's about protecting it. Let's dive into how to do this correctly.
The first step is to drain your cooling system completely. This includes all holding tanks, heat exchangers, and pipework.
Proper drainage is vital to prevent any water-related damage or bacterial growth during the shutdown.
Next, focus on protecting your equipment from corrosion. Use methods like blanketing with inert gas or applying a corrosion inhibitor. These steps help maintain your system's integrity and readiness for future use.
When restarting, begin by thoroughly inspecting and cleaning the cooling tower basin. Refill the system with clean water, keeping in line with microbiological control protocols.
Remember, do not turn on the fans yet. Add a neutralizing agent if you used any lay-up treatment previously.
Run the water-recirculating pumps and ensure every part of the system is functioning. This includes opening bypass valves and ensuring flow through all heat exchangers. Then, test the water for bacteria levels to ensure safety.
After restarting, monitor your system closely. Conduct additional bacteria control checks within the first week. Consult with your water treatment provider for advice on managing any biological or corrosion concerns, especially after a lengthy shutdown.
Following these steps for dry lay-up and restart of your cooling towers is essential for their longevity and safe operation. Regular maintenance and monitoring are key to keeping your system in top condition.
Thank you for watching. Remember, proper maintenance is the best way to protect your investment and ensure safety in your facilities.