专利检索 ap:("PETRÓLEO BRASILEIRO S.A. - PETROBRAS") AND inv:"WAGNER HENRIQUE SALDANHA" 第 1 页

1.

发明公开
DEVICE TO REPAIR LEAKAGE IN HIGH PRESSURE SHELL-AND-TUBES HEAT EXCHANGER USING GASKET AND TENSIONING BY CASES 审中-公开

公开(公告)号：US20230392883A1

公开(公告)日：2023-12-07

申请号：US18327354

申请日：2023-06-01

申请人： PETRÓLEO BRASILEIRO S.A. - PETROBRAS

发明人： ELBERT FERNANDO MARTINS COELHO , WAGNER HENRIQUE SALDANHA

IPC分类号： F28F11/00

CPC分类号： F28F11/00 , F28F2230/00

摘要： The present invention refers to a device to repair leakage in high pressure shell-and-tube heat exchanger using gasket and tensioning by cases. The device aims to repair leakages in heat exchangers in flanged connections of large diameter where there is the gap or channel to allow for gasket placement. The device is fully screwed, with no risk of flash during its implantation and can be used at high temperatures and pressure, in addition to presenting an ease of manufacture/assembly, reducing implementation costs. Basically, the device comprises an adjustment screw holder, gasket compression ring, stabilizer support, and compression adjustment screws.