NEWS CENTER
Oasis Iceberg
11
2024
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07
How to properly perform daily cleaning of closed cooling towers?
During the operation of closed cooling towers, years of weathering and dust accumulation lead to significant buildup of dirt inside the tower, severely degrading cooling efficiency and seriously affecting the refrigeration performance. Over time, accumulated impurities and aging of the packing material further compromise the system. All these factors not only shorten the cooling tower's lifespan but also necessitate regular cleaning to ensure it can withstand prolonged use effectively.
01. During the operation of closed cooling towers, years of weathering and dust accumulation lead to significant buildup of dirt inside the tower, severely degrading cooling efficiency and seriously affecting the refrigeration performance. Additionally, accumulated impurities and aging of the packing material further compromise the system's functionality. All these factors can shorten the cooling tower's lifespan, making regular cleaning essential to ensure long-term reliability and optimal performance.
02. Closed-circuit cooling towers generate significant amounts of calcium, magnesium ions, and acidic carbonates during the cooling process. As the cooling water flows over metal surfaces, carbonate deposits begin to form. Additionally, dissolved oxygen in the cooling water can lead to metal corrosion, resulting in rust buildup. This accumulation of rust and scale severely reduces the heat-transfer efficiency of the cooling tower. In severe cases, it becomes necessary to spray cooling water directly onto the exterior of the tower casing. Moreover, when scaling becomes particularly heavy, it can even clog the cooling tubes entirely, completely negating the system's heat-exchange performance. Research data clearly show that scale deposits have a profound impact on thermal conductivity—every incremental increase in scale leads to higher energy costs. Even a very thin layer of scale can raise operational expenses by more than 40% for the scaled portion of the equipment. By ensuring that cooling channels remain free of mineral deposits, we can significantly enhance system efficiency, conserve energy, extend equipment lifespan, and ultimately reduce both production time and costs.
03. First, we should manually clean the scale, sediment, and debris accumulated inside the cooling tower and the sump. Then, close the cooling tower's return water valve, refill the sump with water, and dissolve a high-efficiency descaling agent in the sump using hot water at around 50°C. Next, proceed with thorough rinsing until all scale and contaminants are completely removed. Afterward, use a杀菌 and algae-killing agent to flush both the packing material and the interior and exterior surfaces of the cooling tower. Finally, clean the iron rust, packing material residue, and any other foreign objects trapped within the circulating pump’s filter screen. Once cleaning is complete, inspect the filter screen for integrity; if any damage is detected, replace it promptly.
That’s all for the operational guide on daily cleaning of closed cooling towers—be sure to carry out regular cleaning tasks. Only then can you ensure they remain suitable for long-term use.
If you encounter a malfunction, do not attempt to repair it yourself, as this may cause unnecessary damage. Instead, promptly contact Oasis Ice Peak's after-sales customer service to receive technical support directly from the manufacturer.
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Contact Phone:+86 4000 616 676
Fax:+86 0310 3178005
E-mail:sales@hdbingfeng.com
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