COMPLEX FOR CREATION OF COOLING LINE AND LUBRICATION OF RADIAL-AXIAL BEARING Russian patent published in 2018 - IPC F04D29/58 F04D29/06 G21D1/04 

FIELD: machine building.

SUBSTANCE: invention relates to power engineering and can be used mainly in the design of the main circulating pump unit for power units of NPPs. Complex for creating a cooling and lubrication circuit for a radial-axial bearing (RAB) includes RAB, a hydrocyclone, a pipeline for supplying water to the industrial circuit in the RAB, the pipeline for water drainage of the industrial circuit from the RAB with a three-stage throttling system to maintain the pressure of the industrial circuit, the bypass branch with the non-return valve, the closing circuit, and a pipeline for discharging contaminated water into the main circuit for draining "polluted" water.

EFFECT: invention is aimed at ensuring the use of water in industrial NPPs and the operation of RAB in the main circulation pump unit in the event of a water supply failure, as well as the possibility of reusing water that has not been cleaned before it is fed into the RAB circuit, simplifying the design and increasing the reliability of the power unit operation.

3 cl, 2 dwg