Oxygen-free water preparation device for brewing green plum wine

The oxygen-free water preparation device comprises a base, a preparation box, a heating box, a motor, a middle box, a liquid separation column, a circulating pump and a water storage tank, a plurality of supporting columns are fixed to the four corners of the upper end face of the base, the preparation box is jointly supported by the top ends of the supporting columns, and the water storage tank is installed in the middle of the upper end face of the base; the top end of the water storage tank communicates with the bottom in the preparation box through a pipeline with a valve, a partition plate is horizontally fixed to the middle in the water storage tank, a sealing gate is installed in the middle of the partition plate, and a water pump is arranged below the sealing gate, installed on the inner bottom face of the water storage tank and connected with a second drainage pipe. The end, away from the water pump, of the second drainage pipe extends out of the water storage tank. According to the oxygen-free water