High-pressure-ratio high-flow axial flow compressor

The invention discloses a high-pressure-ratio high-flow axial flow compressor and relates to the field of gas compressors. The high-pressure-ratio high-flow axial flow compressor aims to solve the problem of traditional industrial axial flow compressors that pressure ratio and flow rate are low. The grade number of the compressor is 18, the tip diameter of a first-grade movable blade is 807.8 mm, the diameter of a blade root is 491.5 mm, and blade height is 158.15 mm. The positions, corresponding to movable blade tips, of the inner walls of a front cylinder, a middle cylinder and an exhaust cylinder are coated with abradable carbon layers. A spherical fairing is arranged on the front side of an inner cylinder body of an inlet cylinder, and ninth-grade and thirteenth-grade anti-surging bleeding ports are formed. A uniform flow type volute shape is adopted for the exhaust cylinder to achieve lateral exhausting. The opening degree of an inlet adjustable guide vane is adjustable. End-bent combined bowed stationary blades are adopted for a fourteenth-grade stationary blade, a fifteenth-grade stationary blade, a sixteenth-grade stationary blade and a seventeenth-grade stationary blade. A front-end shaft 9 of the compressor, a second-grade wheel disc to a seventeenth-grade wheel disc, and a rear-end shaft of the compressor are sequentially stacked and tensioned into a whole through fifteen distribution pull rod components. An integral frame is used for modular installation of the compressor. According to the high-pressure-ratio high-flow axial flow compressor, pressure ratio can reach 16.5, and flow rate can reach 64 kg/s.