DEVICE FOR REPAIRING CURVED PIPELINE SECTIONS (VERSIONS) Russian patent published in 2017 - IPC F16L55/175 F16L55/172 F16L55/179 

FIELD: machine engineering.

SUBSTANCE: device is a sarcophagus of two trough-shaped parts with flanges around the perimeter and contains sealing units from the sarcophagus sides. Both trough-shaped parts are curved and after installation cover the curved section of the pipeline to form a cavity between the pipeline and the walls of the trough-shaped parts. The distance from the longitudinal axis of the sarcophagus to its walls in the direction from the first sealing assembly to the second sealing assembly is made increasing or equal. Both trough-shaped parts on side are made with an end partition and with a centrally formed notch for forming the first sealing assembly. The second sealing assembly is made of two parts interconnected to allow to cover the pipeline cover. There is a hole in the cover displaced from its geometric center and provided with seals for sealing the pipeline passage area. Trough-shaped parts on the other side are made with flanges for securing the cover thereon after putting it on the pipeline and turning to align the holes for fastening means in the cover and flange.

EFFECT: reduced installation time for the device due to floating mechanical seal, adjustable in position relative to the pipe.

2 cl, 6 dwg