Cooling Tower Fills Cleaning Procedure

Cooling Tower Fills Cleaning Procedure

As a key equipment in industrial circulating water systems, the operating efficiency of cooling towers largely depends on the cleanliness of the cooling tower fillers. If the packing accumulates scale, biological growth or blockage for a long time, it will directly affect heat transfer efficiency, increase energy consumption, and even shorten equipment life. Therefore, it is crucial to develop a scientific and standardized Cooling Tower Fills Cleaning Procedure.

Why Is It Necessary To Regularly Clean Cooling Tower Fills?

The main function of a cooling tower filler is to increase the contact area between water and air, thereby improving heat dissipation efficiency. But during operation, the surface of the filler is prone to sedimentation:

1.Scale (calcium carbonate, magnesium salts)

2.Biological slime and algae

3.Rust and suspended solids

4.Oil and organic pollutants

If not cleaned in a timely manner, it can lead to the following problems:

1.Cooling efficiency decreases

2.The temperature of the circulating water rises

3.Increased energy consumption of fans and pumps

4.Aging, deformation, and even scrapping of fillers

The Importance of Cooling Tower Fills Cleaning Chemical

Choosing the appropriate cooling tower fill cleaning chemical is crucial in the cleaning process of cooling tower fill.

Common types of cleaning agents

1.Acidic cleaning agent:

Used to remove carbonate scale

2.Neutral or weakly alkaline cleaning agent: 

Used for cleaning oil stains and organic matter

3.Biological fungicide: 

Used to kill algae and bacteria

4.Dispersant: 

Prevents secondary deposition of peeled dirt

High quality cooling tower fill cleaning chemicals not only have high cleaning efficiency, but also effectively protect the material of the cooling tower fill from corrosion.

Cooling Tower Fills Cleaning Procedure Standard Cleaning Procedure

1. Shutdown and safety preparation

1）Stop the operation of the cooling tower

2）Cut off the power and hang warning signs

3）Drain the circulating water inside the tower

2. Initial rinsing of Cooling Tower Filler

1）Rinse cooling tower fills with low-pressure clean water

2）Remove loose sediment, silt, and floating scale

3. Add Cooling Tower Fill Cleaning Chemical

1）Prepare cleaning solution according to the instructions of the medication

2）Circulating or soaking the cleaning solution into the packing material

3）The action time is generally 2-6 hours (depending on the degree of scaling)

4. Secondary flushing and dirt removal

1）Thoroughly rinse the packing with clean water

2）Ensure that residual chemicals and detached dirt are completely removed

5. Sterilization and passivation treatment (optional)

1）Adding fungicides to inhibit microbial regeneration

2）Perform system passivation to extend the service life of the cooling tower filler

Cleaning Precautions For Different Types of Cooling Tower Fills

PVC cooling tower fill

1）Avoid strong acids and bases

2）Control the cleaning temperature to ≤ 50 ℃

PP cooling tower fill

1）Better chemical resistance

2）Multiple cooling tower fill cleaning chemicals can be used

Aging or brittle fill

1）Suggest mild chemical cleaning

2）If the damage is severe, replacement of the cooling tower filler should be considered

Suggested frequency for cleaning cooling tower fill

1）General industrial systems: once every 6-12 months

2）Areas with high hardness water quality: once every 3-6 months

3）High load operating system: shorten the cycle appropriately according to the operating situation