首先根据压力传感器上的反应信号发送到变频器，之后收到反应信号的变频器再

Adjust the water after first transmitted signal in accordance with the reaction pressure sensor to the drive, after receiving the reaction of the drive signal through the interior of the PID module, in accordance with the amount of water for the pump unit to alter the speed and operation of the pump unit water amount required pressure thereby producing constant pressure water loop. Because after the pump speed constant and the rotation speed decreases and the amount of water supply positive correlation, and the power cost cubic places the pump operating speed is reduced so that more energy-efficient manner than before by controlling the valve drive speed mode, and added many auxiliary functions, while the reliability and stability of the system has also been a corresponding increase.

首先根据压力传感器上的反应信号发送到变频器，之后收到反应信号的变频器再通过内部的PID模块，按照用水量以改变水泵进行机组的转速和水泵进行机组运行所需要的水量之后调整水压从而产生闭环恒压供水系统。由于经过水泵的转速不断的下降且供水量和转速成正相关，而功率则以水泵工作转速的三次方成本降低所以变频器的调速方式比之前通过阀门进行控制的方式更加的节能，并添加了很多辅助功能，同时系统的可靠性和稳定性也得到相应的提升。

First, the transducer is sent to the transducer according to the response signal of the pressure sensor. After that, the transducer receiving the response signal is then adjusted through the internal PID module to adjust the water pressure according to the water consumption to change the speed of the pump and the water required by the pump to run the unit, so as to produce a closed loop constant pressure water supply system. Because of the continuous decline of the pump speed and the positive correlation between the water supply and the speed, and the power is reduced by the cubic cost of the pump working speed, the speed control mode of the frequency converter is more energy-saving than the previous way of controlling through the valve, and a lot of auxiliary functions are added, at the same time, the reliability and stability of the system are also improved correspondingly.