Study on the effect of fluid-structure coupling on the outlet Piping of reciprocating compressor

Abstract

The fluid-structure coupling has been one of the hot issues of academic research in recent years, the achievements in various fields of study also emerge in an endless stream, but on the current research status, The study of fluid structure interaction in the field of moving equipment, especially compressor, is not very common, With the development of industrial compressor, it is developing towards the direction of large scale and high parameter, Coupling analysis of fluid structure interaction can be used to evaluate the safety and stability of the system, and the evaluations are more close to the actual situation. Therefore, it has gradually been valued. Through the comparison and analysis of the vibration test system of the reciprocating compressor before and after the pipeline inflation, the vibration response caused by the coupling factor is obtained, for the correctness verification of the fluid-structure coupling simulation. the numerical model of the experimental system is established based on ANSYS, and the boundary conditions of the model are simulated by the experimental data, verified the feasibility of simulation program. the experimental and simulation results show that the fluid solid coupling characteristics are not obvious in the vicinity of the reciprocating compressor, and the effect is significant at the top of the buffer tank and the installation position of the orifice plate.