Method and arrangement to rapidly lower the rotary spped of a centrifugal separator,申请号US20030398323-传众专利搜索

Method and arrangement to rapidly lower the rotary spped of a centrifugal separator

申请公布号：US2004043884(A1)

申请号：US20030398323

申请日期：2003.09.09

申请公布日期：2004.03.04

申请人：

NYBERG SVEN-OLOF

发明人：NYBERG SVEN-OLOF

分类号：B04B7/06;B04B9/00;B04B9/08;B04B9/14;B04B15/02;F16D57/00;(IPC1-7):B04B9/14

主分类号：B04B7/06

摘要：In a method of rapidly lowering the rotary speed of a rotating rotor body in a centrifugal separator the lowering of the rotary speed is initiated, when a disturbing unbalance or vibrations have occurred. A space between the rotor body and a stationary casing which surrounds the rotor body is supplied with foam or with an aerosol of a liquid in a gas, when unbalance or vibrations over a certain level have occurred. The rotor body is retarded by the friction, which is obtained between the rotor body, the foam or aerosol and the casing. In an arrangement to lower the rotary speed of a rotating rotor body in a centrifugal separator the lowering is initiated when a disturbing unbalance or disturbing vibrations has occurred. Means are arranged at a certain unbalance or certain vibration level to activate a foam generating device or a device that creates an aerosol for the purpose of filling a space between the rotor body and a casing which surrounds the same with foam or aerosol.