Water inlet pipeline damper of high-pressure plunger pump

The utility model relates to a water inlet pipeline damper of a high-pressure plunger pump. The water inlet pipeline damper comprises a high-pressure cavity, a water inlet pipe, a retaining plate and a water outlet pipe, wherein the high-pressure cavity is a cylindrical hollow pipe; the water inlet pipe and the water outlet pipe are inserted into the high-pressure cavity, and are welded and fixed by annular blind plates at two ends of the high-pressure cavity; the retaining plate is welded in the high-pressure cavity between the water inlet pipe and the water outlet pipe, and flow through holes are uniformly formed in the retaining plate. The water inlet pipeline damper of the high-pressure plunger pump disclosed by the utility model has the advantages that the water outlet pipe is connected with the water inlet pipeline of the plunger pump, and the injection water of an oilfield sequentially enters the high-pressure cavity via the water inlet pipe, being subjected to speed reduction and flow stabilizing via water outlet holes of the water inlet pipe, the flow through holes of the retaining plate, and water inlet holes of the water outlet pipeline, and enters the water inlet pipeline of the plunger pump; the water shock can be effectively avoided, and the purpose of stable water supply and vibration elimination are realized.