Pure water PH value automatic control device in hydrogen peroxide production

The utility model is suitable for the technical field of pure water PH value control devices, and provides an automatic pure water PH value control device in hydrogen peroxide production, which comprises a phosphoric acid on-line concentration meter, a peristaltic metering pump, an on-line camera system, an acid water automatic mixer, an on-line PH meter, a pipeline automatic valve and a computer control system, the computer control system automatically adjusts the rotating speed of the peristaltic metering pump according to numerical values measured by the phosphoric acid on-line concentration meter and the on-line PH meter, so that the phosphoric acid reaches preset process parameters after being added into the pure water and passing through the acid-water automatic mixer, the device is few in control unit and simple to operate, the influence of artificial factors on the PH value of the pure water is reduced, and the production efficiency is improved. The pH value of the pure water in hydrogen peroxide prod