Combined type sealing device with double end faces
A sealing device and combined technology, applied in the direction of engine sealing, engine components, mechanical equipment, etc., can solve the problems of loss of working ability of the seal, difficult to improve the service life, failure of the plane seal, etc., to achieve high working reliability, internal The effect of small temperature difference outside and stable sealing performance
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[0021] Example 1: see attached figure 1 shown.
[0022] A double-end combined sealing device, installed in fluid conveying equipment, used to realize shaft end sealing, including gland 1, shaft sleeve 2, drive ring 3, sealing ring 4, limit block 5, main seal 6, auxiliary seal 7.
[0023] The primary seal is in direct contact with the fluid to be sealed, and the secondary seal is in direct contact with the atmosphere.
[0024] The main seal 6 is a knife edge seal, and the main seal 6 includes a pair of main friction rings 8 . The main friction ring 8 includes an active ring 9 and a main static ring 10. The surface of any main friction ring 8 in contact with the other main friction ring 8 is its friction surface, and the friction surface is annular, and the friction surface of the active ring 9 is single. The side width is smaller than the single side width of the friction surface of the main static ring 10 , and the single side width of the friction surface of the a...
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