Novel cooling device for melamine production

The utility model discloses a novel cooling device for melamine production, which relates to the field of gas cooling and comprises a gas inlet box, a gas outlet box and N groups of cooling units arranged between the gas inlet box and the gas outlet box, a gas inlet connector is arranged on the gas inlet box, and a gas outlet connector is arranged on the gas outlet box. The cooling unit comprises a connecting pipe, a cooling pipe and two common seats, the connecting pipe is fixedly installed between the air inlet box and the air outlet box, the two common seats are driven by the driving pieces on the upper side and the lower side to be away from each other or close to each other respectively, and the two common seats move to drive the upper baffle plate and the lower baffle plate to move respectively. And then the gap between the upper baffle plate or the lower baffle plate and the inner wall of the cooling connecting pipe is adjusted, so that the circulation time of the reaction gas in the reaction gas circu