| Reciprocating labyrinth of compressor have high temperature of exhaust and strong pressure, and the cylinder body and the piston body are subjected to higher thermal load and larger mechanical load, then too high heat load and too large mechanical load will have an adverse impact on the compressor cylinder body and the piston body, thereby, affecting the working stability and the working time of the compression machine. Because this type of compressor cylinder has lots of parts and complex system structure, each part in the system under the action of thermal load and mechanical load thermal stress mechanical force, in this paper focuses on the study of a certain type of large reciprocating labyrinth compressor, should stress distribution is not uniform. Therefore, studying on the condition of high temperature and large mechanical loads under this type of compressor mechanical characteristics, and structure improvement design is important to improve the stability and work efficiency of the compressor.The application of CAE technology and CFD technology in the research field of the compressor, heat and mechanical loads in the basic theory and finite element analysis method is discussed in this paper, by means of finite element analysis on the compressor cylinder body and a piston body, the thermal load and mechanical load simulation analysis, to establish the three-dimensional geometric model and mesh, loading the boundary conditions and to calculate the stress and strain nephogram. Through the analysis of stress and strain contour, the improvement design of the cylinder block structure is obtained, and the three-dimensional model is revised. Finally, the FLUENT software is used to simulate the pressure and temperature of the gas in the compression process using the moving grid technique. |
