通过调整的速度水泵、变频供水设备可以自动调整水泵的速度通过调速设备的水泵压力检测时系统的出口管不到的起始压力水泵,这样出口管的压力是恒定的。当水泵达到工频转速但压力未达到设定值时，P2、P3水泵依次启动变频供水系统;随着耗水量的减少，泵出口压力逐渐增大，泵速逐渐降低。

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