THE DIFFERENTIAL PRESSURE OCCURRENCE SYSTEM FOR AUTOMATIC CHEMICALS COMMITMENT

摘要

The present invention provides a main water supply pipe 2, a branch pipe 4 branched on one side of the main water supply pipe 2, a venturi 5 mounted on the branch pipe 4, and the center of the venturi 5. Concentration provided on one side of the nozzle 10 connected to the position, the chemical liquid transport pipe 7 connected to the rear of the nozzle 10, the other side of the chemical liquid transport pipe 7 and the chemical liquid transport pipe (7) A control valve 14, a chemical storage tank 3 connected to the other end of the chemical liquid delivery pipe 7, and the branch pipe 4 and the main water supply pipe 2 are provided at one end portion before joining. It relates to a differential pressure generating device for automatic chemical injection consisting of a check valve (6) for preventing the back flow, and a pressure control valve (8) provided in the main water supply pipe (2).;Chemical input device. Venturi. Branch pipe. Check valve. Drug storage tank. water pipe