Erosion, Corrosion, and Fatigue Prevention for High-Pressure Pumps

摘要

Disclosed are methods of enhancing resistance to erosion, corrosion, wear and tear, and fatigue in high-pressure pumps. One method includes providing a fluid end that comprises a body defining a pressure chamber in fluid communication with a plunger bore having a plunger reciprocably disposed therein, a suction valve pocket defined in the body and having inlet valve assembly arranged therein that includes a suction valve and a suction valve seat, and a discharge valve pocket defined in the body and having a discharge valve assembly arranged therein that includes a discharge valve and a discharge valve seat, and applying a wear-resistant substance directly to a surface of at least one of the pressure chamber, the plunger, the suction valve pocket, the suction valve, the suction valve seat, the discharge valve, and the discharge seat.

主权项

1. A fluid end for a high-pressure pump, comprising:
a body defining a pressure chamber in fluid communication with a plunger bore having a reciprocating plunger disposed therein; a suction valve pocket defined in the body and in fluid communication with the pressure chamber, the suction valve pocket having inlet valve assembly arranged therein that includes a suction valve and a suction valve seat; a discharge valve pocket defined in the body and in fluid communication with the pressure chamber, the discharge valve pocket having a discharge valve assembly arranged therein that includes a discharge valve and a discharge valve seat; and a wear-resistant substance applied directly to a surface of at least one of the pressure chamber, the plunger, the suction valve pocket, the suction valve, the suction valve seat, the discharge valve, and the discharge seat, wherein a discharge cage is arranged within the discharge valve pocket and the wear-resistant substance is applied directly to surfaces of the discharge cage.