The utility model discloses a chromatographic liquid concentration kettle for
glabridin production, belongs to the field of reaction kettles, and aims to solve the problems that a kettle body and accessory equipment thereof are damaged due to the fact that the pressure is too high and cannot be discharged in time, so that part of volatile substances escape from a connector or a gap which is not tightly sealed, and material loss is caused. The pressure relief space is gradually enlarged through the bottom of the pressure relief
pipe, so that pressure is relieved in good time, material loss is reduced, burdens of sealing parts, pipelines and other parts of the concentration kettle are reduced, the magnetic sleeve is magnetically connected with the magnetic ring, and the magnetic sleeve is matched with the
piston block to move upwards along the outer surface of the pressure relief
pipe, so that a worker can visually judge the pressure relief condition in the kettle, and the working efficiency is improved. According to the reaction kettle, the sensing element of the
control switch is triggered, so that the driving fluted disc is closed, the stirring operation in the kettle is stopped, the reaction process is slowed down, and when the pressure in the kettle is reduced to a safe range, the
piston block gradually moves downwards to recover to the original state.