Method for making a pump system with enhanced dynamic seal reliability

摘要

A pressure pump may include a reciprocating assembly including a dynamic seal configured to be in sliding contact with a surface. The surface may be implanted with positive ions such as hydrogen ions/protons to provided reduced wear and/or greater service life of the dynamic seal. According to embodiments, a pump may include an ultra-high molecular weight polyethylene dynamic seal may substantially fixed relative to a cylinder wall, and a proton impregnated reciprocating plunger may pump high pressure water or a water based fluid in a system. The pump may exhibit increased dynamic seal life.

主权项

1. A method for assembling and operating a pump, the method comprising:
providing a plunger that includes an ion-doped material having an electropositive outer surface; providing a seal that includes a polymeric material having an electropositive inner surface; operably positioning the plunger within the seal such that the electropositive outer surface of the ion-doped material slidably contacts the electropositive inner surface of the polymeric material, wherein operably positioning the plunger within the seal includes operably assembling at least a portion of a compression assembly of the pump; moving the plunger relative to the seal to pressurize a polar liquid to a pressure greater than 30,000 psi; hydrogen bonding molecules of the polar liquid to the electropositive outer surface of the ion-doped material while moving the plunger; and hydrogen bonding molecules of the polar liquid to the electropositive inner surface of the polymeric material while moving the plunger, wherein molecules of the polar liquid hydrogen bonded to the electropositive outer surface of the ion-doped material of the plunger interact with molecules of the polar liquid hydrogen bonded to the electropositive inner surface of the polymeric material to reduce friction between the plunger and the seal and thereby increase a service life of the seal.