Pipeline damping device

The utility model discloses a pipeline damping device which comprises one or more damping elements, each damping element comprises a corrugated pipe, a flexible elastic outer layer and damping particles, the flexible elastic outer layer wraps the outer side of the corrugated pipe, the inner side face of the flexible elastic outer layer makes contact with the outer side face of the corrugated pipe partially, and the damping particles are arranged on the outer side face of the flexible elastic outer layer. A plurality of closed annular cavities are defined by the plurality of the damping particles, and the annular cavities are filled with the damping particles. The corrugated pipe is used in contact with a pipeline, on one hand, the unique appearance structure of the corrugated pipe is matched with the flexible elastic outer layer to form the annular cavity, the annular cavity is filled with the damping particles, and through the collision effect of the damping particles, effective vibration reduction can be co