Automatic high-pressure tank washing device

The invention provides an automatic high-pressure tank washing device. The automatic high-pressure tank washing device comprises a culture tank (9), a sliding rail (19) is arranged at the top of the culture tank (9), and the sliding rail (19) is fixedly connected with a rotary joint (4); the rotary joint (4) is arranged in the culture tank (9), a direction control unit (8) is arranged on the rotary joint (4), an output pipe of the rotary joint (4) is connected with a universal joint (6), and a pressurizing nozzle (7) is formed in the universal joint (6); and an input pipe of the rotary joint (4) is connected with a valve (15) through a high-pressure hose (18), and a valve (15) is simultaneously connected with a remote control valve I (1) and a remote control valve II (2) which are connected in parallel through a ballast main pipe (3). The problems of cleaning work of the culture tank on a marine culture platform and circulating water inflow of seawater in the culture tank (9) are solved, and the device is eas