Your fault is dry gas seal failure: the following are the causes and troubleshooting methods

   Deviation and Vibration: Recheck alignment and refer to the "Vibration" solution
   The gas contains impurities: check the filter, replace the dirty core, and check whether the pipe is clean
   Liquid in gas line: Check natural gas main line and compressor outlet line
   Insufficient buffer air pressure: Check that the pressure difference should not be lower than the specified minimum limit.
   Insufficient isolation gas pressure: its pressure should not be lower than the specified minimum limit
   The dry gas seal gap does not comply with the regulations: its pressure should not be lower than the specified minimum limit
   Anti-rotation (applicable to one-way operating seal): Check normal operating status