Abstract: During big development of fully mechanized coalmining equipment these years, The flow rate of safety-valve has reached 1000L/min. A simulation model for the test of Large flow safety-valve based on STA-1000 test equipment and AMESim has been built. The difference of flow rate-time curve is less than 5%, comparing with real test result. At the same time, models with different inner diameter, elastic coefficient of spring and spool mass has been built, and the relationship between these parameters and flow rate-time curve has been studied. The result shows that small inner diameter causing shock, increasing of elastic coefficient of spring reducing the flow rate after opening and no efficient caused by spool mass.

Key words: AMESim, Hydralic-System Analysis, Large Flow Safety-Valve, Test-System Simulation, Large Flow Safety-Valve Test-Equipment