Bulb tubular hydroelectric generating set bearing lubricating oil mixed cooling system

The utility model discloses a bulb tubular hydroelectric generating set bearing lubricating oil mixing cooling system which is characterized by comprising a high-position oil tank arranged at a high position and an oil unit arranged at a middle position, the outlet end of the high-position oil tank is communicated with the oil unit through a return pipe, and the outlet end of the high-position oil tank is communicated with the inlet end of an oil return tank through the return pipe after passing through the oil unit. The outlet end of the oil return tank is sequentially connected with an oil supply pipeline, a filtering pipeline, an air cooling pipeline and a plate type cooling pipeline in series through conveying pipes and finally communicates with the high-position oil tank. The oil supply pipeline consists of two groups of oil supply units which are connected in parallel; the filtering pipeline comprises a filter arranged on the conveying pipe, and filtering valves are arranged in front of and behind the f