Chloroform rectification device and rectification process

The invention belongs to the technical field of energy conservation and environmental protection, and relates to an energy-saving heat exchange device in a chloroform rectification process, in particular to a chloroform rectification device and a rectification process. The chloroform rectification device comprises a chloroform rectifying tower, the bottom of the chloroform rectifying tower is provided with at least two reboilers, the reboilers are vertically arranged, the reboilers are tube type heat exchangers, lower end sockets of the reboilers are provided with settlement areas, the settlement areas are spaces capable of carrying out settlement, shell pass inlets of the reboilers are connected with a steam source, and the steam of the steam source is lower than 0.4 MPa. The problem of frequent blockage of the reboiler of the rectifying tower can be solved, so that long-period operation of the chloroform rectifying tower is realized, meanwhile, the energy consumption can be greatly reduced, and the producti