LNG (liquefied natural gas) compressor compressor impeller component with balanced air hole structure

The invention relates to the technical field of centrifugal compressors, in particular to an LNG (liquefied natural gas) compressor compression impeller component with a balanced air hole structure, which comprises impeller blades, an impeller disc front side, an impeller back, an impeller hub inlet end, an impeller hub center hole and a pull rod, the impeller hub inlet end is arranged on the inlet side of the impeller blades, and the impeller back is provided with a plurality of first through holes; the inlet end of the impeller hub is provided with a plurality of second through holes, the air compression impeller component is provided with a plurality of balance air holes, holes are drilled in the impeller back into a cavity formed by the pull rod and the center hole of the impeller hub, then the balance air holes are drilled, and holes are drilled in the inlet end of the impeller hub into a cavity formed by the pull rod and the center hole of the impeller hub. Therefore, the pressure of high-pressure gas i