The utility model relates to the technical field of heating devices, and discloses a steam ejector and a
steam heating pipe thereof, the steam ejector comprises a shell, a plurality of steam-liquid mixing pipes and a plurality of steam ejection pipes, a steam channel and a liquid channel are arranged in the shell, one end of the steam channel is communicated with the steam ejection pipes, and the other end of the steam channel is communicated with an external steam supply pipeline. One end of the liquid channel is communicated with the vapor-liquid mixing
pipe, and the other end of the liquid channel is communicated with the inner cavity of the external container. By adopting a coaxial and same-direction double-layer sleeve structure of a liquid channel and a steam channel, a
jet flow structure of a steam jet
pipe and a steam-liquid mixing pipe and a straight cylindrical structure of the steam-liquid mixing pipe, to-be-heated liquid enters from the rear part of the liquid channel, so that the problems that the liquid cannot be effectively stirred after
steam heating and silencing treatment, the heat cannot be dispersed, and the
heating effect is poor are solved. The
heating efficiency is low, and stirring or large material circulation must be added to eliminate a dead zone.