The water source is the same; it is divided into 5 systems, so why is the conductivity different?
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Hello everyone. I have a circulating cooling water system; the water source is the same for all of it, and it flows into 5 separate systems. Why is the conductivity different among them? And why is the difference so large? Can a slow-release scale inhibitor, as well as agents for killing bacteria and algae, be added to a circulating water system to reduce conductivity? How to control conductivity? Thank you. Conductivity, the same, system
Five systems, with the same water replenishment. However, differences in the concentration factor and wastewater discharge volume of each system lead to variations in the conductivity of the circulating water. Furthermore, as the name implies, corrosion and scale inhibitors are chemicals that mitigate corrosion and prevent scaling. This agent is merely an additive; it cannot reduce the conductivity of the system, and to some extent it even increases the conductivity of the circulating water. However, due to the very small dosage, its increase in value is negligible.
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The degree of corrosion and scaling varies among the 5 systems, which in turn results in different conductivities at various return water points. The use of corrosion and scaling inhibitors as well as biocides leads to the release of cations and anions, and it also suppresses the formation of certain ions (such as iron ions); therefore, their effects are not clear. Reducing the conductivity of circulating water is achieved primarily through effective wastewater removal, the use of qualified make-up water, and preventing leaks in the heat exchange medium~~
The Zhetao system is a new system; 2 sets have been in use for 2 years, while 3 sets were put into operation only last year. How could corrosion and scaling occur in such a short time? There is a system in which, once the water is completely drained, the level rises to over 300 when water is added again; yet after just one night, it goes above 600. Why is that?
Is there a leak in the medium? ~~Or circulating water from other parts seeps in~~
This is a set of circulating cooling systems, and all the equipment is new. I don’t think those two possibilities you mentioned are likely. Besides, how can we investigate these two possibilities? Thank you
Seal the inlet and outlet tightly, and drain all the water stored there. After some time, open the discharge valve on the circulating water circuit in the system to check whether there is any fluid or circulating water present~~
Conductivity is directly related to the dissolved ions. After water is cooled by air, changes in water temperature lead to varying amounts of evaporation; moreover, ions released into the water from the air or certain components of the equipment during the cooling and evaporation processes have a significant impact on the conductivity of the water. An RO membrane can solve this problem.
Water quality analysis can be conducted; an increase in conductivity indicates an increase in ions in the water. It is possible to determine roughly what kinds of ions are present, as well as what substances may have entered the water.
Agree with the suggestion above. A water quality analysis can be conducted; by examining the data on the quality of the circulating water and the water added as make-up water, it is possible to determine whether the conductivity and the concentrations of other ions (such as chlorides, magnesium ions, silicates, etc.) increase in proportion. This indicates that the system is undergoing natural concentration. If the concentration ratio of one of these ions is particularly high, or if there are large differences in the concentration ratios of these ions, then, taking into account the characteristics of the cooled medium and other surrounding waters, the leak point in the system can be determined.