流量闭环智能控制系统原理：高压发泡机的流量传感器测得的实际值与控制系统的设定值不断进行比较，通过变频器实现对电机转速的控制，从而改变泵的流量输出来达到调整任何流量的偏离。

     Flow closed-loop control system,intelligent pressure foaming machine flow sensors the actual value of thecontrol system,and through xomparing continuously variable frequency xontrol or motor speed,thus changing the rlowrate of the pump to adjust any output flow deviation.