Constant-temperature jacket of reaction kettle

The utility model discloses a reaction kettle constant temperature jacket, including reaction kettle body, spiral jacket, medium inlet and medium outlet, spiral jacket spiral uniform connection is in the inside of reaction kettle body inner wall, the inside of reaction kettle body is connected with the mounting groove, spiral jacket is provided in the mounting groove, the medium inlet is provided with the medium inlet, the medium outlet is provided with the medium inlet, the medium outlet is provided with the medium inlet. A medium inlet is formed in one end of the spiral jacket and at the bottom of one side of the reaction kettle body, and a medium outlet is formed in the other end of the spiral jacket and at the top of the other side of the reaction kettle body. According to the reaction kettle, the spiral jacket is spirally distributed in the mounting groove in the inner wall of the reaction kettle body, the situation that the service life is shortened after the reaction kettle is impacted by the outside d