Catalytic hydrogenation reaction device

The utility model discloses a catalytic hydrogenation reaction device which comprises a kettle body, a kettle cover is mounted at the top of the kettle body, a plurality of supporting blocks are uniformly distributed at the top of the inner wall of the kettle body, a cleaning mechanism is detachably mounted on the supporting blocks in the kettle body, and the cleaning mechanism is used for flushing and scraping the inner wall of the kettle body. The cleaning mechanism is used for replacing manual work to clean the kettle body. The cleaning mechanism can be pulled away from and detached from the kettle body in a normal state, interference to catalytic hydrogenation reaction is avoided, when cleaning is needed, the cleaning mechanism is fed into the kettle body to be clamped and limited with the supporting block, and external cleaning liquid is communicated with the feeding pipe to achieve conveying. And subsequently, cleaning liquid is sprayed to the inner wall of the kettle body in a multi-point mode through