Shell and Tube Heat Exchanger as Bearing Oil Cooler

Shell and tube heat exchanger is a commonly used heat transfer equipment in industrial field, which consists of shell, tube bundle, tube plate, head (end cap) and other components, and is characterized by compact structure, high heat transfer efficiency and strong adaptability. In the bearing oil cooling system, shell and tube heat exchanger through the indirect heat transfer between oil and cooling medium (water or other fluids), the heat generated during the operation of the bearing is efficiently removed to ensure that the lubricating oil temperature is stabilized in a safe range, prolonging the life of the bearings and ensuring the reliable operation of the equipment.

Core structure

Shell (Shell): the internal housing tube bundles, cooling medium (such as water) in the shell program flow, through the outer wall of the tube bundles and the oil inside the tube for heat exchange.

Tube Bundle (Tube Bundle): consists of a number of heat exchanger tubes (copper, stainless steel, etc.), the lubricant flow in the tube program, the heat is transferred to the shell medium through the tube wall.

Tube plate (Tube Sheet): fixed tube bundle ends, separated from the tube and shell process fluid, to ensure that the two do not mix.

Head (Head): located at both ends of the heat exchanger, guiding the oil in and out of the pipe process, can be designed as a single process or multi-process (such as U-tube, floating head structure) to increase the flow rate and heat transfer efficiency.

Working Principle

Tube Stream (Oil Side): Hot oil returned from the bearing is pressurized by the pump and flows into the inside of the tube bundle, flowing along the tube stream and releasing heat.

Shell course (cooling medium side): cooling water (or other fluids) from the shell inlet into the outer side of the tube bundle lateral scouring of the tube wall, absorbing the heat transferred by the oil and then discharged from the outlet.

Heat exchange mechanism: Through the thermal conductivity of the tube wall, combined with the convective heat transfer between the oil and the cooling medium, the heat transfer from the oil to the cooling medium is realized.