| 摘要 |
PURPOSE: A flap change valve comprising a rotating bearing is provided to ensure uniform contact and sealing performance over a closed unit and to facilitate the maintenance of the closed unit. CONSTITUTION: A flap change valve comprises a first opening, a closed beam(4), a rotating bearing, a shaft(11), and a drive(13). The rotating bearing is formed by a plurality of bearing elements(27). The bearing elements are arranged to be spaced apart along a shaft axis and a rotating axis in a valve housing. The closed beam is mounted on the bearing element. The rotating axis is extended from the side of the first opening to the horizontal surface of a sealing surface and rotates to a common rotating axis. The shaft is mounted on at least some of the bearing elements and is extended in a direction perpendicular to the horizontal surface of the first sealing surface at an interval from the rotating axis. |
