Northern karst spring protection and water quality evolution simulation device and simulation method

The invention relates to a northern karst spring protection and water quality evolution simulation device. The northern karst spring protection and water quality evolution simulation device includes a water supply device, a seepage device and a spring water control device; a seepage column is a cylindrical structure which is arranged obliquely and simulates a monoclonal structure; the closed end of the seepage column is provided with a water outlet; the spring water control device is arranged at the water outlet; the seepage column is filled with a Cambrian-Ordovician limestone seepage medium; a plurality of pressure measuring openings and water taking openings are arranged at the side wall of the seepage column; the pressure measuring openings are respectively connected with a pressure measuring tube; the pressure measuring tubes are respectively provided with a valve; the water taking openings are respectively provided with a flow meter and a valve; the water supply device comprises a water bearing layer leakage recharge device and a rain water supply device; the side wall of the upper end of the seepage column is provided with an overflow opening; and the overflow opening is connected with an overflow bottle through a pipeline. With the northern karst spring protection and water quality evolution simulation device of the invention adopted, a northern karst spring water quality evolution process can be simulated, and karst spring water quality evolution laws can be explored, and a scientific basis can be provided for the formulation for spring protection measures.