The Failure Finite Element Analysis of Pump Collision with Valve in the Oil Well Pump

Abstract

The three element drive pump failure was the main reason to reduce inspection cycle of the pump. In this paper, a law of pump valve motion in one stroke was acquired through the establishment of the motion equations of the pump valve in the oil well pump, by making it as the pump valve boundary conditions and using ANSYS / LS-DYNA software, the stress state of the valve housing under the conditions of pump valve impact on the valve cover was analyzed, and as the calculation was shown, under the same conditions, the groove valve cover has the stronger impact than the extended grooved valve housing. The inspection cycle of groove valve housing was 457 days shorter than the extended grooved valve cover according to the theory of the fatigue life, therefore, the extended valve housing can effectively extend the check period.

Research on the Process of Laser Cladding Ni60 Coating on High-Nickel Cast Iron Surfaces

“…The impeller of a submersible electric pump requires specific attributes such as wear resistance, corrosion resistance, and excellent machinability. Currently, high nickel austenitic cast iron [17] is widely employed for this purpose, with nickel content ranging from 13% to 36%. This material offers not only favorable corrosion resistance, non-magnetic properties, controllable thermal expansion, and resistance to oxidation at both low and high temperatures, but also possesses excellent shock absorption, wear resistance, and machinability.…”