There are the problems of low flow control accuracy, small flow control difficulty, and limited flow range in Amino Acid Multiple the traditional pressure-compensation flow-control valve.For this, a method of continuous control pressure drop $Delta p_{mathrm {rated}}$ to control flow-control valve flow is proposed.And the precise control of small flow is realized by reducing the pressure drop $Delta p_{mathrm {rated}}$.In the research, the flow-control valve with controllable pressure compensation capability (FVCP) was designed firstly and theoretically analyzed.Then the sub-model model of PPRV and traditional flow-control valve were established and verified through experiments respectively.
Finally, the accurate co-simulation model of the FVCP was established.The continuous control characteristics of pressure drop $Delta p_{mathrm {rated}}$ , the flow characteristics Artificial Flora of FVCP, and the influence of different parameters $d_{2}$ were studied.The research results demonstrate that, compared with the traditional flow-control valve, the designed FVCP can adjust the compensation pressure difference in the range of 0.3 ~ 1.7 MPa in real-time.
And the flow rate can be altered within the range of 44% ~ 100% of the rated flow.The diameter $d_{2}$ of the console shoulder has almost no effect on the compensator operating characteristics.