Analysis of Impact Load Stresses in the Working Process of the Ring Valve in Reciprocating Compressors

摘要

The impact load stresses of the straight impact and the leaning impact of the valve plate against the valve seat and the valve guard in the working process of the ring valves in the reciprocating compressors are analyzed by means of ANSYS/LS-DYNA, which is a large-scale explicit dynamics finite element analysis software. The results show that the stress of the leaning impact is higher than that of the straight impact. The stress of the leaning impact is the main reason for the failure of the valve plate. The higher the amplitude of the leaning motion is, the higher the impact load stress of the valve plate is. And the thicker the valve plate is, the higher the impact load stress is at the same impact velocity and amplitude of the leaning motion.