Hermetic structure

摘要

Problem to be solved: to provide a sealing structure for improving the life of the sealing device.The sealing structure is provided with a housing 2 having an axial hole 2a, a rotary shaft 4 disposed in an axial hole, a sealing device 6 which seals the gap between the housing and the rotary shaft, and separates the air side space a and the sealed liquid side space l, and is rotatably provided on the rotary shaft. A fan 20 is disposed in the sealed liquid side space and supplies the sealed liquid 14 toward the sealing device.Diagram