Features of the steam-liquid full-flow screw power machine with double steam inlets

A vapor-liquid full-flow screw power machine with double steam inlets, including a casing, a driving screw rotor, a driven screw rotor, a rotor shaft mechanical seal device, a rotor shaft synchronous gear, a rotor shaft bearing, a low pressure end block, and a high pressure end block ; The driving screw rotor and the driven screw rotor meshing with each other are installed in the casing, and the synchronous gears, bearings, and mechanical seals on the left and right shaft ends of the driving screw rotor and the slave screw rotor are respectively installed in the low-pressure end seat and the high-pressure end seat, The low-pressure end seat and the high-pressure end seat are respectively fixedly connected with butt bolts at the left and right ends of the casing. The casing is provided with a steam outlet port, and the high-pressure end seat is provided with a first steam inlet leading to the side end of the casing. It is characterized in that: a second steam pipe opening (12) is provided on the casing corresponding to the axial center of the inner cavity, and a steam distribution nozzle (6) is arranged in the second steam inlet pipe opening, and the steam distribution nozzle is sleeve-shaped, The lower end part (61) of the sleeve is a cone wedge shape corresponding to the shape of the inner wall of the axial center part of the inner cavity of the casing. The upper end sleeve of the cone wedge part is provided with a mouth (62), and the front side shape of the mouth For the cone shape corresponding to the rotation angle of the driving screw rotor and the driven screw rotor blades, the back side shape of the mouth is semicircular, so that the mouth (62) can adjust the flow direction to align with the center of the driving screw rotor and the driven screw rotor blades. Department of steam intake. 2. The vapor-liquid full-flow screw power machine with dual steam inlets according to claim 1, characterized in that: the upper end of the steam distribution nozzle (6) is matched with the flange port stop of the second steam pipe port (12) And fixedly connected with screws; an expansion joint (7) is connected to the flange on the second steam pipe port (12); the expansion joint (7) and the first steam inlet (51) and the three-way steam inlet pipe (8) Connected, a filter (9) is installed on the flange port of the steam inlet end of the three-way steam inlet pipe (8).

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