Rear adjusting type steam-steam ejector

The utility model discloses a rear adjusting type steam-steam ejector, which belongs to the technical field of ejectors, and comprises a high-pressure medium inlet, a nozzle, a low-pressure medium inlet, a suction chamber, an adjusting core, a mixing seat, a diffusion section and a medium-pressure outlet, the nozzle is at least partially positioned in the suction chamber, the adjusting core is arranged at the center of the outlet of the nozzle, and the mixing seat is arranged on the middle-pressure outlet of the nozzle. The adjusting core can move in the nozzle in the central axis direction of the high-pressure medium inlet, the mixing seat is arranged between the suction chamber and the diffusion section, the end, away from the high-pressure medium inlet, of the adjusting core extends out of the diffusion section, the adjusting core is movably connected with the matching portion of the side wall of the diffusion section, and the portion, extending out of the diffusion section, of the adjusting core is provid