公开(公告)号：WO9707051A3

公开(公告)日：1997-04-10

申请号：PCT/US9612978

申请日：1996-08-09

Applicant: TPA INC

Inventor： TAGGART GEORGE W ,  LEWIS JAMES E ,  WARD CRAIG S

IPC: F27D21/02 ,  B01J3/00 ,  C01B17/02 ,  C01B17/04 ,  G01F23/02 ,  G01P13/00 ,  C01B

CPC classification number: C01B17/0447 ,  B01J3/004 ,  C01B17/0221 ,  G01F23/02 ,  G01P13/008

Abstract: A sealed observation element (10) for viewing the flow of molten liquid (38) during the operation of a sulfur recovery unit comprises at least one sight glass (14) that is heated and which may be swept with a purge gas supplied through one or more bleed rings (22) to prevent condensation or deposition of materials on the side of the sight glass (14) exposed to the process stream.

公开(公告)号：EP0882214A4

公开(公告)日：1999-12-08

申请号：EP96928111

申请日：1996-08-09

Applicant: TPA INC

Inventor： TAGGART GEORGE W ,  LEWIS JAMES E ,  WARD CRAIG S

IPC: F27D21/02 ,  B01J3/00 ,  C01B17/02 ,  C01B17/04 ,  G01F23/02 ,  G01P13/00

CPC classification number: C01B17/0447 ,  B01J3/004 ,  C01B17/0221 ,  G01F23/02 ,  G01P13/008

Abstract: A sealed observation element (10) for viewing the flow of molten liquid (38) during the operation of a sulfur recovery unit comprises at least one sight glass (14) that is heated and which may be swept with a purge gas supplied through one or more bleed rings (22) to prevent condensation or deposition of materials on the side of the sight glass (14) exposed to the process stream.