Brine purification tank with online pH meter

The utility model relates to a brine purification tank with an on-line pH meter, and belongs to the technical field of storage devices. Comprising a brine purification tank, a communicating vessel and a pH meter, a pipeline I and a pipeline II are arranged on the side wall of the brine purification tank, and the pipeline I is positioned above the pipeline II; the pipeline I is connected with the top of the communicating vessel; the pipeline II is connected with the bottom of the communicating vessel; the communicating vessel is provided with a pH meter, and one end of a probe of the pH meter extends into the communicating vessel; the communicating vessel is provided with a flushing pipeline and a buffer solution pipeline; a blow-off pipeline is arranged at the bottom of the communicating vessel; the first pipeline, the second pipeline, the flushing pipeline, the buffer solution pipeline and the blow-off pipeline are all provided with valves. According to the utility model, brine in the storage tank is shunted