Customized Design Multi-tube Shell-and-tube and Finned-tube Oil Cooler for Hydroturbine

The turbine oil cooler serves as core auxiliary heat-exchange equipment for hydro-turbine units. During operation, friction and power loss generate significant heat in thrust bearings, guide bearings, and hydraulic governor systems, raising lubricating oil and hydraulic oil temperatures. The oil cooler efficiently transfers heat from high-temperature oil to cooling water, maintaining optimal operating oil temperature.

Insufficient cooling capacity or internal leakage can lead to excessive oil temperature, accelerating oil aging and deterioration, increasing bearing wear, causing hydraulic control malfunctions, and potentially triggering unit safety risks.

We provide tailor-made oil cooler solutions based on customer drawings, heat dissipation requirements, oil-water flow parameters, working pressure, installation space, and on-site cooling-water medium characteristics. Two mainstream structures are available:

• Multi-tube shell-and-tube cooler: Mature and reliable performance for conventional hydropower units
• Finned-tube oil cooler: Expanded heat-exchange area with fin structure for compact layouts in space-limited projects

• Complete auxiliary equipment supply for new-built hydropower stations
• Lubrication and governor-system upgrading & capacity-increase retrofitting of existing turbine-generator sets
• Overhaul spare-part replacement for Francis, Kaplan, bulb, and pumped-storage reversible units
• Medium-and-large hydropower plants, EPC contractors, and power-asset operators worldwide

• Custom design & fabrication according to customer drawings or technical specifications
• Material and structural optimization for silt-rich, scaling, or corrosive cooling-water conditions
• Full factory inspection: hydraulic leak testing, dimensional verification, and appearance checks
• Technical support for transportation, on-site installation, commissioning, and maintenance guidance