PRESSURE PULSATION DAMPER (PPD) (VARIANTS) Russian patent published in 2023 - IPC F16L55/55 

FIELD: pipelines.

SUBSTANCE: invention relates to pipeline transport for eliminating pressure pulsations in the transportation of liquid and gaseous products. Pressure pulsation damper comprises a hollow cylindrical body with conical inlet and outlet sections installed along the pipeline axis, a porous throttling element positioned inside the cylindrical body configured for placing two conical elastic elements connected to the body so as to be able to be secured. The body is made in the form of a hollow cylinder (1) with a circular cross section and open ends, wherein an internal screw thread is made along the length of said cylinder. The inlet and outlet sections are made in the form of two conical elastic axial bellows (2) with transverse corrugations. The bellows (2) are secured with the large bases thereof along the perimeters of the opposing ends of the cylinder (1), and the throttling element is made in the form of a disk (3) with through channels (4) and an external screw thread, set in the cylinder (1) so as to form a screw threaded joint. Also proposed is another embodiment of the pressure pulsation damper.

EFFECT: structural simplification, reduced materials consumption, and higher effectiveness of pressure pulsation damping.

7 cl, 2 dwg