Fracturing Pump Valve Wear Mechanism And Finite Element Analysis

With the wide application and development of fracturing techniques, in the oil field fracturing pump valve requires enduring higher pressure, stronger impact load, and obtaining better comprehensive performance so that it has longer natural life in worse working condition. So it is very necessary to do some deep research on fracturing pump valve while developing fracturing techniques.In order to prolong the natural life of fracturing pump valve, this article do much basic research work on fracturing pump value.Firstly,kinetic characteristics of fracturing pump valve are stated particularly and analysed.Through stimulated experiment based on practical working conditions,the wearing disciplinarian and forms of impact particle wear about fracturing pump valve are researched by comparing it with pure impact wear and abrasive wear.Furthermore, the wear mechanism of impact particle wear and particle erosion are analysed. In the end ,by using the fenite element analyzing tool ANSYS,the distributing law of stress and strain of fracturing pump valve at the state of closing and during the process of impact are analysed carefully.In addition,some conclusions about impact particle wear and fracturing pump valve are drawn,and improving measures about material selection,heat treatment and structure etc are provided which are useful for maintenance of fracturing pump valve.