Annular cooling device for large-scale cylindrical shell

An annular cooling device for large-scale cylindrical shell, comprising a plurality of inner jet devices and a plurality of outer jet devices, wherein the plurality of inner jet devices are arranged inside the cylindrical shell along an inner circumference of the cylindrical shell, and the plurality of outer jet devices are arranged outside the cylindrical shell along an outer circumference of the cylindrical shell, each of the inner jet devices and each of the outer jet devices are arranged opposite to each other, and the plurality of inner jet devices are used to spray cooling medium to an inner wall of the cylindrical shell, and the plurality of outer jet devices are used to spray cooling medium to an outer wall of the cylindrical shell, spray range of each of the inner jet devices and each of the outer jet devices along the axial direction of the cylindrical shell is greater than the length of the cylindrical shell, the cylindrical shell is provided with a rolling device for rolling the cylindrical shell;

• wherein each of the inner jet devices and each of the outer jet devices includes a plurality of sets of jet cooling devices, and each set of the jet cooling devices includes a cooling medium conveying device, a first fixing plate, a second fixing plate, a hydraulic cylinder and a plurality of jet pipes, a piston rod of the hydraulic cylinder is fixedly connected with the cooling medium conveying device;
• the cooling medium conveying device is in communication with the plurality of jet pipes through pipelines, the first fixing plate and the second fixing plate are sleeved on the plurality of jet pipes, and the first fixing plate and the second fixing plate are arranged in parallel;
• wherein the rolling device includes an upper roller, a lower roller, a first guide roller and a second guide roller, the upper roller is arranged inside the cylindrical shell and is in contact with the inner wall of the cylindrical shell, the lower roller, the first guide roller and the second guide roller are arranged outside the cylindrical shell and are in contact with the outer wall of the cylindrical shell, the upper roller and the lower roller are arranged opposite to each other, the plurality of inner jet devices and the upper roller are evenly distributed along the inner circumference of the cylindrical shell, and the plurality of outer jet devices and the lower roller are evenly distributed along the outer circumference of the cylindrical shell, the first guide roller and the second guide roller are located on both sides of the lower roller, and the first guide roller is located between the lower roller and the outer jet device adjacent on one side, the second guide roller is located between the lower roller and the outer jet device adjacent on the other side.