Reaction kettle cooling device

The utility model relates to the field of cooling equipment, and discloses a reaction kettle cooling device, brine is used for replacing traditional chilled water, the freezing point of the brine is lower than that of water, and the brine in a brine tank can be cooled to a lower temperature through a freezing compressor, so that compared with the adoption of the chilled water, the cooling effect can be ensured on the premise of ensuring the cooling effect; the input of the reaction kettle is improved, the production cost is reduced, the productivity is improved, and the refrigeration compressor does not need to work all the time; before the reaction kettle is cooled, the first switch valve is closed, the second switch valve is opened, and the brine pump works to realize circulation of brine through the return pipeline so as to prepare for cooling of the reaction kettle; when the reaction kettle needs to be cooled, the second switch valve is opened, the first switch valve is closed, and the brine pump can imme