How Do Hydraulic Oil Coolers Work?
Hydraulic oil coolers are designed to function by providing a temperature difference between two fluids – the hydraulic oil and the ambient air.
Take hydraulic oil cooler as an example. Typically, they operate on a heat exchange principle. They work by drawing hot hydraulic oil from an operating system and passing it through the inlet header of the cooler. As the oil flows through the tubes, it exchanges heat with the surrounding air as air passes over the cooler’s fins, removing the heat as it goes. The hydraulic oil then exits the cooler through the outlet header, returning into the system at a temperature that is closer to optimal operating temperature.
The hydraulic oil picking up heat from various sources, including the heat generated internally by the hydraulic system. The movement of hydraulic fluid within the system, friction between the fluids and other internal components, and ambient temperature, can all contribute to the rise in temperature. As the temperature of the hydraulic oil rises, it also affects the viscosity of the fluid. The rise in viscosity can lead to system inefficiencies, increased wear on seals and other elements, and eventual failure of the system altogether. The hydraulic oil cooler works by ensuring the hydraulic oil temperature is maintained within an optimal range for the system it is installed in. The cooler does this by removing excess heat generated during normal operation, preventing equipment damage and prolonging the life of the system while enabling the system operators to continue working efficiently.