公开(公告)号：US10738641B2

公开(公告)日：2020-08-11

申请号：US15922247

申请日：2018-03-15

申请人： Nuovo Pignone Tecnologie Srl

发明人： Filippo Gerbi ,  Emanuele Rizzo ,  Andrea Bernocchi ,  Marco Marrazzo ,  Leonardo Baldassarre ,  Amelia Lavinia Ricchiuti

IPC分类号： F01D11/06 ,  F01D21/00 ,  F04D29/12 ,  F16J15/34 ,  F01D11/00 ,  F16J15/26 ,  F16J15/40 ,  F02C7/28 ,  F04D29/10

摘要： A dry gas seal for sealing the shaft of a turbomachinery, provided with means for the continuous health monitoring of the dry gas seal comprising one or more sensors adapted to measure strains and/or loads induced to the primary ring of the dry gas seal and/or strains induced to one or more of the elastic elements coupled to the primary ring and/or adapted to measure displacements of the primary ring or of an element coupled to the primary ring, for an early detection of failure of the seal, thus enabling main failures early detection capability and proactive maintenance actions.