Dosing system

The utility model discloses a dosing system which comprises a proportioning tank and a stock solution tank used for storing stock solution, the proportioning tank is connected with the stock solution tank through a dosing pipeline, a metering pump is arranged in the dosing pipeline, the proportioning tank is further connected with a water supply pipeline, an electric valve and a flow meter are arranged in the water supply pipeline, and the metering pump, the flow meter and the electric valve are all connected with a controller. In the working process, the controller controls the electric valve and the metering pump to be started, and meanwhile the flow meter measures the water flow and feeds the water flow back to the controller. The controller controls the opening degree of the electric valve and the power of the metering pump according to the water flow, so that the purpose of automatically preparing the medicament is achieved, and the labor intensity of operators is reduced. 本实用新型公开了一种加药系统，包括配比罐和用于储存原液的原液罐