Flow guide plate structure of shell-and-tube heat exchanger

The utility model discloses a shell-and-tube heat exchanger deflector structure which comprises a cylinder body, end covers and baffle plate bodies, the end covers are welded to the two ends of the cylinder body, a plurality of baffle plate bodies are arranged between the two end covers in a stacked mode, the baffle plate bodies are all welded to the inner wall of the cylinder body, each baffle plate body is of a wave-shaped structure, and the end covers are welded to the inner wall of the cylinder body. The flow guide plate structure of the shell-and-tube heat exchanger comprises baffle plate bodies, heat conduction plates are fixedly connected to the outer walls of wave crests on the two sides of the baffle plate bodies, backflow gaps are formed in wave troughs on the two sides of the baffle plate bodies, and refrigerant flow channels and heating medium flow channels which are arranged at intervals are formed between the baffle plate bodies. The cold fluid and the hot fluid can circulate at intervals, heat