Research on the Cushioning Performance of Hydraulic Cylinder in the Stepless Air Volume Control System of Reciprocating Compressor
The limit speed of the unloader of the stepless capacity regulation system of reciprocating compressor determines its service life and also affects the performance of the regulation system.Based on the structural model of the hydraulic cylinder and the working principle of the buffer,the dynamic model is established,and the key parameters affecting the action of the unloader are analyzed,including the diameter of orifice,the diameter of buffer piston and the stroke of buffer piston.The simulation model of the buffer hydraulic cylinder is built using the AMESim software platform,and the influence rules of the variable changes on the performance parameters of the unloader such as the working impact speed,the action completion time and the withdrawal time of the suction valve disc are analyzed,which lays the foundation for the optimization of the key parameters of the capacity control system.
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