Rotary positive displacement Compressor-pump 50 - 51
Here is offered a new rotary positive displacement compressor .This device inclusive two dentate lobes witch is presented with the name of rotary lobes 50-51. The device is a rotary positive displacement compressor. The compressor comprises 51 rotary cells created with two mated dentate lobes. The compression process is polytropic nigh to isotherm because the heat generated throw compression simultaneously removed by a heat exchanger which is placed at the discharge bore.
Advantages
Deliver compressed gas up to 60 bar with single stage.
Capable oil free operation.Control able flow rate with constant pressure.Control able pressure level with constant flow rate.Smooth rotation and low noise creation.Capability to design in vast range of capacity.Can be easily change to pump-compressor for liquids and two phase flow (gas & liquid).Compressor Operation
This compressor is a positive displacement unit. This type of machine has two transfer port. One port is DDC (Down Dead Center) region (P) and the other is TDC(Top Dead Center) region (S). DDC and TDC regions where each cell passing through, encloses with casing wall therefor the trapped mass transferred.While rotating the lobes the cells passing via DDC region(P) and volume of gaseous mass which trapped among cells transferred to accumulation space where is enclosed with lobes and accumulator casing (X) which might be equipped with a heat exchanger (O).Cells continue rotating to reach TDC region (S) consecutively diminishing their volume according to compression ratio (114 ul) and therefor evacuate trapped media into accumulation space (X) and leaves there via TDC region (S).Accumulating gaseous mass in compression space (X) cause to increase pressure and temperature according to compression ratio. Depending on the operation monitor increasing temperature would be controlled by heat exchanger (O).Thermodynamically this process is like as polytropic (Isentropic) process.