The heat exchanger allows the heat transfer fluid to maintain the temperature near the set-point in case of overheating and allows a rapid working temperature raise and stabilization at a relatively low level.
The heat exchanger can be added to different types of cooling systems:
The fluid to be cooled circulates in the exchanger primary loop (water or oil).
The cooling fluid circulates in the exchanger secondary loop (water from a cooling tower or from a closed cooled loop).
The cooling water enters through an NC solenoid valve or through a motorized valve of suitable size depending on the flow rates to be handled.
This system demands large tubing heat exchangers, for instance with tube bundle, to avoid the formation of scale.
The fluid to be cooled circulates in the exchanger primary loop (water or oil). The cooling fluid circulates in the exchanger secondary loop (water from a cooling tower or from a closed cooled loop).
The novelty consists in the elimination of scale deposits on the cooling side through a continuous circulation of water at a controlled temperature.
The fluid to be cooled enters into the exchanger only if a temperature reduction becomes necessary, using a three way valve. If this is not necessary the exchanger will be by passed.
This system allows the use of high efficiency exchangers, for instance exchangers fitted with inspection plates or brazed, which formerly could not have been used due to their tendency to become coated with lime scale.