PRESSURE PULSATIONS DAMPER Russian patent published in 2018 - IPC F16L55/04 

FIELD: transportation.

SUBSTANCE: invention relates to devices for extinguishing pressure pulsations, its stabilization and uniform pressure distribution in the discharge tube bundle in pipeline transportation systems of various sectors of the national economy. Damper contains cover (1), cone chamber (5) and cylindrical chamber (2) in a collapsible housing. Two evenly perforated plates (4, 6) with a total free section along the outlet openings 55±8 % of the area of the plates are located at the entrance and exit of cone chamber (5). Perforation plates (4, 6) are made confused holes. Cylindrical chamber (2) is located in front of first along the divided stream plate (4). Tangential entry (3) of the partial flow is installed in the lower generatrix of cylindrical chamber (2). Along the inner surface of cylindrical chamber (2) and up to the first along its lateral generatrix, trench (7) is installed on tangential inlet (3) and coaxial with it. Lower part of groove (7) is made in the form of a cut along the tube, on both longitudinal sections of which plates are installed, which form side walls limiting the flow with the lower part of the groove. Inner diameter of the lower part of groove (7) and the total height of the side walls from the inner surface of the cylindrical chamber are equal in size to the internal diameter of tangential entry (3).

EFFECT: device allows to stabilize the pressure and evenly distribute the flow rate of the fluid medium along the discharge tube bundle in a wide range of fluid flow.

1 cl, 4 dwg, 2 tbl