What is the cooling tower hardener? What is it used for?

Based on how well they work, cooling towers are classified as closed-circuit or open-circuit kinds. They are used to cool the water that circulates in water and absorption chillers or industrial operations. The cooling towers, both open and closed, are constantly transferring heat through the evaporation of water, which exposes them to corrosion and deposits. In the cooling tower feed water path, a Softener & Descaler is utilised to solve this issue. What a cooling tower Softener & Descaler is and how it works are discussed in this article. Investigations have been done into the factors that lead to corrosion and deposit buildup in cooling towers, as well as the types of Softener & Descalers that can be used and their advantages; Stay with us until the very end of the post if you want to learn more.

Reasons for the cooling tower's deposits and corrosion

Because of the hardness of the tower's feed water and other factors, sediments and corrosion in the cooling tower cause a reduction in heat transfer efficiency, clog and slow down the flow rate of nozzles and pipes, and cause sediment to enter the pan. These reasons include:

TDS is a measure of the water's suspended solids.
The temperature of the water in motion
The pH of the water in motion
Water's dissolved oxygen content
Water and carbon dioxide soluble

Various types of Softener & Descalers for cooling towers

There are various varieties of cooling tower water softeners, including resin, magnetic, and electronic softeners, which we shall detail below.

Resin Softener & Descaler

The foundation of this method's operation is to replace the calcium and magnesium ions in the cooling tower water with sodium resin. This method uses chemical deionization to remove the solutes from the cooling tower water through cationic resins. Semi-automated and automatic hardeners are separated into two groups. In semi-automatic hardeners, the operator must regenerate the resins on a regular basis (weekly or monthly) in order to achieve proper performance. This is done by running the resin through a water and salt solution.

Magnetic Softener & Descaler

Without using water additives, this method of hardening uses a magnetic field to produce the desired result. In this method, the water's solutes are affected by the magnetic field and lose their negative ions, which causes them to become suspended. Because they won't readily absorb one another, the solutes in the water won't be able to combine to produce sediments.

Electronic Softener & Descaler

This technique uses electromagnetic waves to balance the positive and negative ions that are dissolved in water. The way the electric hardener works is that under the influence of electric energy, the ions that are dissolved in the water are transformed into tiny crystals suspended in the water, preventing the precipitation of salts.

Benefits of utilising a cooling tower hardener

It is possible to list the following benefits of utilising a hardener in the cooling tower:

preventing the nozzles, packings, pipes, and other interior cooling tower parts from clogging.
Extending the usable life of components affected by corrosion
Increasing the cooling tower's efficiency and heat transfer rate
Avoiding pressure loss and flow brought on by deposits
Cost savings from descaling following sediment formation

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