SELF-ADJUSTING SEAL FOR ROTATING EQUIPMENT

摘要

A self-adjusting sealing system includes a first annular retaining subsystem, a second annular retaining subsystem, and an annular self-adjusting seal subsystem. The first annular retaining subsystem, a second annular retaining subsystem, and an annular self-adjusting seal subsystem may be disposed in a hollow cylinder. The first annular retaining subsystem includes a lip seal and a lantern ring at a first fixed location along a shaft member. The second annular retaining subsystem includes a lip seal and a lantern ring at a second fixed location along a shaft member that is spaced apart from the first fixed location. The annular self-adjusting seal subsystem includes a force-producing member and a compressible sealing member. The force-producing member is disposed between the second annular retaining subsystem and the compressible sealing member and maintains a constant compressive force on the shaft member throughout the life of the self-adjusting sealing system.