Structural Modeling & Simulation Optimization of Suction Valve Plate for Refrigerator Compressor

The fully enclosed reciprocating piston compressor adopts a tongue spring valve with simple structure and reliable operation. As one of the key components in the fully enclosed reciprocating piston compressor, its working performance directly affects the refrigeration efficiency of the compressor. This article uses two software, SolidWorks and ANSYS, to model and simulate the static stress. For ANSYS software, we used the Fluent module to establish a fluid domain model and conducted fluid structure coupling analysis on the reed valve structure of LD100CY1 household reciprocating compressor with a valve plate thickness of 0.1 mm . The simulation results verified the stability at 0.1 mm . Stress analysis revealed that a pressure of 2.34 pa was applied to the top for a size of 50×42×0.1 mm ³ . The maximum lift reached 0.0627 mm , and the equivalent stress at the root reached the maximum value of 1.67 Mpa . Under this working condition, the plate is fully functional. In the simulation phase, the lifespan and safety factor were also simulated. The simulation results showed that the plate with a thickness of 0.1 mm would not break under a pressure of 2.34 pa , and the minimum safety factor at the root exceeded 1.2. These simulation results can verify that the stability with a thickness of 0.1 mm is very good.