Reaction kettle with circulating temperature control device

The utility model relates to the technical field of chemical engineering. More particularly, the present utility model relates to a battery, the reaction kettle is provided with a circulating temperature control device. The device comprises a reaction kettle, a liquid adding tank, a metering pump, a first temperature sensor and a temperature controller, the reaction kettle is provided with a jacket layer; the liquid adding tank is communicated with the reaction kettle through a pipeline; a first temperature sensor is mounted in the reaction kettle; a circulating water injection pipe is mountedat the bottom of the reaction kettle; a jacket layer of the reaction kettle is communicated with the circulating water tank through a circulating water injection pipe; a circulating drain pipe is mounted at the top of the reaction kettle; a steam conveying pipe is mounted at the top of the circulating water tank; a second temperature sensor is mounted on the circulating water tank; the water solution polymerization react