The technical realization elements of the steam-liquid full-flow screw power machine with double steam inlets

4. The purpose of this utility model is to address the insufficient power (output) of the prior art steam-liquid full-flow screw power machine, and provide a steam-liquid full-flow screw power machine with a simple structure that can effectively increase the power (output); A steam-liquid full-flow screw power machine with simple structure, flexible use, and convenient use in working conditions with large differences in inlet and exhaust parameters, so as to improve its performance.

5. The steam-liquid full-flow screw power machine with double steam inlets of this utility model includes a casing, a driving screw rotor, a driven screw rotor, a rotor shaft mechanical sealing device, a rotor shaft synchronous gear, a rotor shaft bearing, a low pressure end seat, High-pressure end seat; the meshing driving screw rotor and driven screw rotor are installed in the casing. 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 on the low-pressure end seat and the high-pressure end In the 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 inlet leading to the side end of the casing. The steam port is characterized by:

6. A second steam pipe port is opened on the casing corresponding to the axial center of the inner cavity, and a steam distribution nozzle is provided in the second steam inlet pipe port. The steam distribution nozzle is sleeve-shaped, and the lower end of the sleeve is the A cone-wedge shape corresponding to the shape of the inner wall of the axial center part of the shell cavity. A mouth is provided in the upper sleeve of the cone-wedge part. The shape of the front side of the mouth corresponds to the rotation angle of the active spiral rotor and the driven spiral rotor blades. The shape of the back side of the mouth is semi-circular, so that the mouth adjusts the flow direction to align with the central part of the driving spiral rotor and the driven spiral rotor blades for steam intake, so as to increase the force of the second steam pipe opening on the spiral rotor , Improve steam intake efficiency.

7. The casing of the utility model is provided with a second steam pipe port, which can be used when the inlet and exhaust steam parameters differ greatly. The power (output) of the hydraulic full-flow screw power machine is fully improved.

8. The second steam pipe port opened on the steam-liquid full-flow screw power machine has the same steam inlet as that of the steam-liquid full-flow screw power machine.

The inlet and outlet parameters are closely related to each other. Only after the inlet and exhaust parameters are determined can the inlet and outlet steam volume be determined at the second steam pipe port. The utility model is equipped with a steam distribution nozzle in the second steam inlet pipe port. The nozzle flow area of the steam distribution nozzle is designed with multiple specifications. According to the set steam inlet volume of the second steam pipe port, the nozzles with different flow areas can be replaced. The steam distribution nozzle can open a second steam pipe port with a uniform diameter on the casing, reducing the manufacture of casings with different second steam pipe diameters, facilitating the manufacturing and processing of the casing, and reducing production costs.

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