Corrosion-resistant reaction heat testing device

The utility model discloses a corrosion-resistant reaction heat testing device which comprises a reaction tank body and a plastic-lined pressure sealing cover arranged at the top of the reaction tank body, a plastic-lined stirring shaft is arranged in the center of the plastic-lined pressure sealing cover, the bottom of the plastic-lined stirring shaft penetrates into the reaction tank body, and a floating magnetic sleeve is sleeved at the top of the plastic-lined stirring shaft. Magnets are arranged on an inner magnetic cavity of the floating magnetic sleeve and a transmission table of the plastic-lined stirring shaft, the magnets arranged on the opposite faces of the floating magnetic sleeve and the transmission table repel each other in magnetism, and vibration transmitted when an external motor rotates is eliminated and compensated through a floating gap between the floating magnetic sleeve and the plastic-lined stirring shaft. The phenomenon that the motor vibrates to drive the tail end of the stirring s