Research on the Reciprocating Sealing of Fracturing Pump
Abstract: The failure reasons
of reciprocating sealing in OPI-1800AWS fracturing pump are analyzed by
scanning electron microscope technology (SEMT). The lubrication mechanism of
plunger seal friction pair is analyzed by hydrodynamic lubrication theory.
During its discharge and suction stroke, the reciprocating sealing friction
pair meets the conditions of hydrodynamic lubrication, a certain thickness of
oil film can be formed and maintained between the plunger and V-shaped sealing
interface, which can lubricate sealing pair, reduce friction and improve
lifetime. The axial pressure distribution of the V-shaped sealing is carried
out by theoretical analysis and experimental testing. According to the
distribution curve of axial pressure, the V-shaped sealing failure and the
determination of the number of loops are discussed.
Author: Wei Bing Zhu, Gang
Zhou, He Shun Wang
Journal Code: jptkomputergg120075