A ROTOR, A TURBOMACHINE CONTAINING SUCH ROTOR, AND A THERMODYNAMIC CIRCUIT IN WHICH SUCH TURBOMACHINE IS USED

Claims

1. A rotor for a power turbomachine, comprising: a plurality of rotor disks; each rotor disk comprising a corresponding annular row of rotor blades of the expansion flow path of the power turbomachine; front section of the shaft; rear section of the shaft; and at least one cooling channel configured to supply a cooling fluid to the rotor disks; and the first set of rotor disks is formed integrally with a section of said front shaft section; the first set of rotor disks and the section of the front shaft section form a monolithic component; The front section of the shaft and the rear section of the shaft are connected to each other using a system of tension rods.

2. The rotor of claim 1, wherein the additional set of rotor disks is formed as a single piece with the rear section of the shaft; and the rear section of the shaft and the additional set of rotor disks form a monolithic component.

3. The rotor according to claim 1, comprising at least one additional rotor disk between the front section of the shaft and the rear section of the shaft; wherein the front section of the shaft, at least one additional rotor disk and the rear section of the shaft are arranged in series with each other and connected to each other by a system of tension rods.

4. The rotor of claim 1, wherein a plurality of additional rotor disks are located between the front section of the shaft and the rear section of the shaft; and wherein the front section of the shaft, the plurality of rotor disks and the rear section of the shaft are arranged in series with each other and connected to each other by a system of tension rods.

5. A rotor according to one of the preceding paragraphs, further comprising a cooling chamber in the rotor configured to receive a cooling fluid from said cooling channel.

6. The rotor according to claim 5, wherein the cooling chamber is located between the front section of the shaft and the rear section of the shaft.

7. A rotor according to one of the preceding claims, in which the radial cooling channels are fluidly connected to the annular spaces between pairs of successively arranged rotor disks.

8. The rotor of claim 1, wherein the tie rod system comprises: a plurality of tie rods arranged around the axis of rotation of the rotor at a radial distance therefrom; a central tie rod coaxial with the axis of rotation of the rotor; or a combination of a central tie rod and a plurality of tie rods arranged around the axis of rotation of the rotor.

9. The rotor of claim 8, further comprising a balancing clutch, wherein the balancing clutch is formed on one of said front shaft portion and said rear shaft portion, preferably on said front shaft portion.

10. The rotor of claim 9, wherein the balancing coupling comprises a first part of the balancing coupling and a second part of the balancing coupling, connected to each other by means of at least one tie rod and preferably by means of a plurality of tie rods located along the periphery around the axis of rotation of the rotor at a radial distance from it.

11. The rotor of claim 1, wherein at least one of said rotor disks comprises front teeth configured to rotatably engage said rotor disk with at least one of: an adjacent rotor disk, a front portion of a shaft, and a rear portion of a shaft.

12. The rotor according to claim 1, in which at least one cooling channel passes in the front section of the shaft and is connected through a fluid medium with the annular spaces between the rotor disks formed in one piece with the front section of the shaft.

13. The rotor of claim 1, comprising at least four, preferably at least six, more preferably at least eight expansion stages.

14. An energy turbomachine comprising an outer casing and a rotor according to claim 1, arranged to rotate in the casing.

15. A turbomachine according to claim 14, which is an expander.

16. A turbomachine according to claim 14, wherein the outer casing comprises a high-pressure casing and a low-pressure outlet casing, wherein the high-pressure casing and the low-pressure outlet casing are connected along a plane orthogonal to the axis of rotation.

17. A turbomachine according to claim 16, wherein the high pressure housing comprises a monolithic cylindrical part.

18. A turbomachine according to any one of paragraphs 14-17, further comprising at least one combustion chamber located in the outer casing.

19. A turbomachine according to any one of paragraphs 14-18, further comprising at least one inner casing fixedly located in the outer casing and surrounding the rotor; wherein each inner casing is divided into a first casing part and a second casing part along a plane parallel to the axis of rotation of the rotor; and wherein the inner casing comprises annular rows of fixed blades.

20. Supercritical thermodynamic circuit of carbon dioxide containing oxidizer source; an expander having an inlet side and an outlet side, the inlet side being in fluid communication with a source of oxidizer; a flue gas recirculation line configured to recirculate flue gas from the outlet side of the expander into the combustion chamber of the expander; in the flue gas recirculation line - a cooler designed to cool the flue gas from the outlet side of the expander and condense the water contained in the flue gas; a regenerative heat exchanger in which the flue gas from the expander exchanges heat with the cooled flue gas from the cooler; wherein the expander is a turbomachine according to any of paragraphs 15-19.