Brine treatment is applied to chillers to prevent corrosion and to minimize metal system degradation. A brine chiller provides heat transfer for food products, particularly milk, brew, and processed meat. The system provides faster heat conduction, uniform temperature reduction, and precise cooling control. High volume of brine also provides temperature uniformity which lowers production costs and lengthens product shelf-life.
But like other metallic systems, brine chillers are prone to corrosion. Corrosion is the degradation of metal in its natural state due to various chemical reactions in its environment. Various conditions can contribute and aggravate corrosion, especially with closed loop systems.
Chiller circuit corrosion affects business operation which can result to capital loss. Rust conducts heat and electricity poorly and can decrease cooling capacity in turn. It also tends to contaminate fluids/antifreeze coolants and plugs tube. Excessive corrosion or metal cavitation can cause leaks and burst of heat exchangers as well. Rust flakes are also abrasive and cause further erosion of metal system, thereby reducing flow rate. In the long run, leaks can cause food contamination.
Cooling Water Chemical 1609 of Chemicals Direct is an organic brine treatment program. Product contains a combination of phosphonate, polymer, and azole formulated to minimize corrosion and deposition. Five gallons of this product can treat 350 gallons of fresh brine solution.
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