Axial turbine with two supply levels
AssigneeTurboden S.P.A.
InventorsMario Gaia, Roberto Bini
Life of this patent
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Abstract
An axial turbine (100) with two supply levels for the expansion phase of a working fluid in a thermodynamic vapor cycle or in an organic Rankine cycle comprising a shaft (2), a plurality of rotor blade arrays (R1-Rn) and corresponding support disks (21, 22), a plurality of stator blade arrays (S1-Sn), further comprising a first inlet opening (5) and a second inlet opening (7′). The second volute (4) is positioned inside the first volute (3), the working fluid of the second supply level reaching upstream of a stator blade (S2,Sn) that is are immediately upstream of one of the rotor blade arrays that extends radially into both of the first and second supply levels.
Claims11
An axial turbine (100) having two supply levels for the expansion phase of a working fluid in a steam thermodynamic cycle or in an organic Rankine cycle comprising:
- a shaft (2),
- a plurality of stages, each stage having:
- a rotor blade array (R1-Rn) with a corresponding support disk (21, 22), and
- a stator blade array (S1-Sn);
- a first inlet opening (5) and a first inlet volute (3), defined by a first casing (3′), for a working fluid of a first supply level of the two supply levels, and
- a second inlet opening (7′) and a second inlet volute (4), defined by a second casing (4′), for a working fluid of a second supply level of the two supply levels, wherein
- the second inlet volute (4) is positioned inside the first inlet volute (3),
- the working fluid of the second supply level bypasses at least a first stage of the plurality of stages and
- the working fluid of the first supply level and the working fluid of the second supply level are conveyed to two radially contiguous stators that are immediately upstream of one of the rotor blade arrays that extends radially into both of the first and second supply levels.
Dependencies are inferred from the claim text.