Water oil exchanger
The oil-water heat exchanger is an element that we use to cool the oil in our hydraulic circuit and stabilize its temperature, for this we will use water. In it we have 2 inputs, one for the oil, which will enter from the hydraulic circuit and will come out with a lower temperature, joining the circuit again.
And through the other entrance that the water will enter in order to dissipate the heat as it has a temperature lower than that of the oil. In this way we manage to cool the oil in our hydraulic circuit so that it continues to retain its properties and everything works properly without breakdowns.
Fresh water and salt water exchangers
The water must come from the running water network or from a closed network with its own cooling system so that the water always has a lower temperature than the oil. As much water as possible is recommended for further optimization.
Likewise, it is recommended that each oil-water heat exchanger have its own water circuit so that said water does not pass through each of the exchangers, since in this way it will not have enough time to reach a low temperature again.
The water can be both sweet and salty. For this, there are 2 types of heat exchangers: some standard and others marine to be able to get the most out of it and be able to withstand the adversities of each environment, since at sea ships need to withstand inclement weather and salt.
There is a special range for the shipbuilding industry with special materials to avoid salt water corrosion and oxidation. For this, the tubular bundles are made of 90/10 cupro-nickel, thus resisting the abrasion and oxidation of salt water. The water inlet and outlet covers are made of brass or bronze in both models, so we will not have any problems.
Installing the oil / water exchanger
It is very important that the exchanger installation is placed just before the tank. Let us remember that in hydraulic circuits the return pressure must not exceed 3 bar, that is why between the exchanger and the tank there must not be any other element that can generate pressure. In this way, the oil will pass through the exchanger without any pressure.
In addition, the cooling liquid must come in the opposite direction to the refrigerated one so that in this way it creates turbulence and the loss of calories is more effective.