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

In view of the structure and locomotion character of the ring valve of compressor,the impact load stresses of the straight impact and the leaning impact of the valve plate against the valve seat and the valve guard on the working process of the ring valve in the reciprocating compressor 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 of 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.It gives the basis for the compressor ring valve structure modification and optimization design.