Vapour-water mixer

The utility model relates to a gas-water mixer which is matched to use with a plate-typed complete unit, comprising a cylinder 2, a steam inlet connecting pipe 1, a hot water outlet connecting pipe 3, a condensate inlet connecting pipe 5, a spraying pipe 4 and a condensate outlet pipe 6; the steam inlet connecting pipe is connected on top of the cylinder; the hot water outlet connecting pipe is connected with the upper side of the cylinder; the condensate inlet connecting pipe is connected with the lower side of the cylinder. After the utility model is connected with the complete unit of the plate-typed heat exchanger, the temperature and pressure of the inlet heat source of the heat exchanger can be reduced, the temperature of the cooled water discharged by the unit can be largely reduced, and the heat exchange efficiency of the unit can be improved.