Extra-large special device for producing alkaline and acidic ionized water

The invention discloses an extra-large special device for producing alkaline and acidic ionized water, which comprises a pre-purification device and a large ionized water generator, wherein the pre-purification device and the large ionized water generator are connected in sequence. The special device is characterized by comprising an automatic reminder for placing a filter element of the pre-purification device and an automatic control device for synchronously switching polarity and effluent of the large ionized water generator. The automatic reminder comprises a water quality sensor, a waterquality detection and analysis circuit, an alarm circuit and an alarm, wherein the water quality sensor, the water quality detection and analysis circuit, the alarm circuit and the alarm are connected in order. The automatic control device comprises a programmable logic controller (PLC) control circuit, a positive and negative polarity linkage change-over switch and two two-position three-way magnetic valves, wherein the