| 摘要 |
<p>An automatic vibration system, used for automatically hammering the filter housings of a filter system and forming a physical impact wave in back washing fluid inside the filter housings during a back washing process, is disclosed. In the vibration system, an air knocker is provided outside each filter housing and selectively knocks the filter housing, thus forming the impact wave in the back washing fluid. A solenoid valve selectively operates the air knocker in response to a back washing signal from a control panel, thus allowing the air knocker to be started synchronous with the beginning of a back washing process. A timer presets the knocking time interval of the air knocker during the back washing process. The vibration system thus improves the filter cleaning effect and effectively protects the drive parts for service valves of the filter system from frictional abrasion. The vibration systems operate completely automatically (remote control from main control room), they require almost no labor.</p> |
