Cooling device

The invention discloses a cooling device. The cooling device comprises an upper connector, a lower flange, a jacket body, a water inlet pipe, a water outlet pipe, an exhaust pipe and flow guide plates; the jacket body is of a columnar structure and is composed of an inner steel plate and an outer steel plate, an inlet and an outlet of the jacket body are uniform in size, and the middle of the jacket body is filled with cooling media; the upper connector is located at the upper part of the cooling device; the flow guide plates are located in the jacket body and are respectively of a spiral rising shape; the exhaust pipe is located at the upper part of the cooling device; the lower flange is located at the lower part of the jacket body and is connected to the jacket body; the water inlet pipe and the water outlet pipe are distributed at the bottom and at the upper part of the cooling device respectively, the cooling media flow in the direction from bottom to top, and the direction is opposite to the material fl