Online dilution system

The utility model discloses an online dilution system, and belongs to the technical field of solution dilution. The system comprises a mother liquor tank, a solvent tank, a mixer and a controller, the top of the mother liquor tank and the top of the solvent tank are each provided with a constant pressure assembly, the mixer is connected with the bottom of the mother liquor tank and the bottom of the solvent tank through a pipeline A, a valve B is arranged on the pipeline A, a pipeline C is arranged on the mixer, a concentration detection assembly is arranged on the pipeline C, and the controller is connected with the controller. And the controller is electrically connected with the constant pressure assembly, the valve B and the concentration detection assembly. The device can automatically finish the mother liquor dilution work on line, the liquor preparation efficiency is high, and the concentration consistency of the obtained diluted solution is good. The pipeline B and the pipeline A are connected in para