Monitoring device in cyclic sodium reactor

The utility model discloses a monitoring device inside a sodium annulus reactor, which belongs to the technical field of chemical equipment and comprises a reaction kettle, a material injection port is arranged on one side of the reaction kettle, a sealing cover is arranged on the material injection port, a mounting bin is arranged at the top of the sealing cover, a rotating rod is rotatably mounted inside the mounting bin, and a rotating shaft is arranged on the rotating rod. One end of the rotating rod extends to the outside of the mounting bin, an adjusting block is fixed to the outer end of the rotating rod, and a pull rope is wound around the rotating rod and extends to the bottom of the sealing cover. Through the arrangement of the mounting bin at the top of the sealing cover, the rotating rod in the mounting bin and the pull rope wound on the outer side of the rotating rod, the thermometer can be controlled to extend into a solution to measure the temperature in the using process of the device, and the