Compressor arrangement
View Patent ↗A compressor arrangement has a common shaft, an axial compressor having at least a single-stage, and a radial compressor having at least single-stage. Assemblies of the, or each, axial compressor stage on the rotor side and assemblies of the, or each, radial compressor stage on the rotor side are attached to a common shaft ( 4 ). A ratio between a maximum diameter of the shaft ( 4 ) in the region of the axial compressor ( 2 ) and a minimum radial impeller seat diameter of the shaft ( 4 ) in the region of the radial compressor ( 3 ) is between 1.5 and 3.0.
1. A compressor arrangement ( 1 ), comprising:
an axial compressor ( 2 ) having at least one axial compressor stage;
a radial compressor ( 3 ) having at least one radial compressor stage; and
a common shaft ( 4 ) having a maximum diameter in a region of the axial compressor ( 2 ) and a minimum radial impeller seat diameter in a region of the radial compressor ( 3 ),
wherein the axial compressor stage on a rotor side and the radial compressor stage on the rotor side are attached to the common shaft ( 4 ), and
wherein a ratio between the maximum diameter of the shaft ( 4 ) in the region of the axial compressor ( 2 ) and the minimum radial impeller seat diameter of the shaft ( 4 ) in the region of the radial compressor ( 3 ) is between 1.5 and 3.0.
2. The compressor arrangement according to claim 1 , wherein the ratio between the maximum diameter of the shaft ( 4 ) in the region of the axial compressor ( 2 ) and the minimum radial impeller seat diameter of the shaft ( 4 ) in the region of the radial compressor ( 3 ) is between 1.8 and 3.0.
3. The compressor arrangement according to claim 2 , wherein the ratio between the maximum diameter of the shaft ( 4 ) in the region of the axial compressor ( 2 ) and the minimum radial impeller seat diameter of the shaft ( 4 ) in the region of the radial compressor ( 3 ) is between 2.0 and 3.0.
4. The compressor arrangement according to claim 2 , wherein the ratio between the maximum diameter of the shaft ( 4 ) in the region of the axial compressor ( 2 ) and the minimum radial impeller seat diameter of the shaft ( 4 ) in the region of the radial compressor ( 3 ) is between 1.8 and 2.5.
5. The compressor arrangement according to claim 2 , wherein the ratio between the maximum diameter of the shaft ( 4 ) in the region of the axial compressor ( 2 ) and the minimum radial impeller seat diameter of the shaft ( 4 ) in the region of the radial compressor ( 3 ) is between 2.0 and 2.5.