Small air separation unit water cooling tower cold scale

The way to determine whether there is cold scale in the water cooling tower

View the data of the last 3-6 months, in the case of the same amount of dirty ammonia, to determine the cooling rate of low-temperature water, or in the maintenance of the low-temperature water pump before the filter to see if there is low-temperature scale.

2. Water cooling tower packing is relatively loose, generally will not affect production, can be by reducing the concentration of circulating water times, and then in the low-temperature small cycle cast cryogenic scale inhibitor slowly stripped (3 ~ 6 months).

Methods to determine whether the freezer has cold scale

1. Check the chiller end difference (oil temperature - water temperature) for the last 3 to 6 months, if there is a significant increase in the data, it means that there is a problem with the chiller of the small air separation units
2. Suspend the work of the chiller and open the chiller outlet pipe to see if there is cold scale precipitation.
3. Open the end cover of the chiller, add the circulating water in the chemical treatment, hang the circulating water to detect the corrosion of the metal and ensure the safe operation of the heat exchange equipment of the large air separation units. Strictly control the acidity and alkalinity of the circulating water to avoid the corrosion of the circulating water on the small air separation units.
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Dear air separation of water cooling tower maintenance and maintenance to ensure the safety of small air separation units and large air separation units and liquid air separation plants.

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