Plunger pump inlet capsule damping device

The utility model provides a plunger pump inlet capsule damping device. The plunger pump inlet capsule damping device comprises a damper pipe and at least three damping capsules arranged in the damper pipe, the damping capsules approach to or are attached to the inner wall of the damper pipe in parallel, the damping capsules are double-layer oval capsules with radian, the double-layer oval capsules are each of an inner and outer double-layer structure, the inner layer of each capsule is a hollow or solid filler, the outer layer of each capsule is a stretch resistant surface layer, the fillers are EPDM rubber sponges, and the stretch resistant surface layers are EPDM rubber layers. The EPDM rubber is adopted as materials, the double-layer structure of each capsule is formed, and no air leakage exists; according to the design structure, the periphery of the inner wall of a damper carries out buffering and damping at the same time, and water flows through a middle cavity so as to better ensure smoothness of water flow.