초록 ▼

A system includes a brush seal segment. The brush seal segment includes a movable support including a head, an extension, and a seal surface, wherein the head is configured to mount in a chamber. The brush seal segment also includes a brush coupled to the movable support along the seal surface, wher

A system includes a brush seal segment. The brush seal segment includes a movable support including a head, an extension, and a seal surface, wherein the head is configured to mount in a chamber. The brush seal segment also includes a brush coupled to the movable support along the seal surface, wherein the seal surface consists essentially of the brush. The brush seal segment also includes a biasing element coupled to the movable support, wherein the biasing element is configured to bias the movable support from a first position to a second position to increase a brush clearance in a space between the brush and a rotor, and the movable support is configured to move from the second position to the first position to decrease the brush clearance in response to a fluid flow from the space to the chamber.

대표청구항 ▼

1. A system, comprising: a brush seal segment, comprising: a movable support;a brush coupled to the movable support; anda biasing element coupled to the movable support, wherein the biasing element is configured to bias the entire movable support in a same axial direction to change a brush clearance

1. A system, comprising: a brush seal segment, comprising: a movable support;a brush coupled to the movable support; anda biasing element coupled to the movable support, wherein the biasing element is configured to bias the entire movable support in a same axial direction to change a brush clearance in a space between a rotor and a stator, wherein the stator comprises a chamber having angled bottom portions, wherein a portion of the movable support is disposed within the chamber, and the biasing element in conjunction with the angled bottom portions is configured to bias the movable support in the same axial direction and a radial direction to change the brush clearance in the space between the rotor and the stator. 2. The system of claim 1, wherein the movable support has an angled path of movement relative to a rotational axis of the rotor, and the angled path of movement has an angle greater than approximately 0 and less than approximately 90 degrees. 3. The system of claim 2, wherein the biasing element is configured to bias the movable support to move only along the angled path of movement. 4. The system of claim 2, wherein the movable support has an axial path of movement along the rotational axis of the rotor. 5. The system of claim 4, wherein the biasing element is configured to bias the movable support to move along the axial path of movement followed by the angled path of movement. 6. The system of claim 1, wherein the biasing element is configured to bias the movable support in the same axial direction to move the brush into a groove on the rotor. 7. The system of claim 1, wherein the biasing element is configured to bias the movable support from a first position to a second position to increase the brush clearance in the space between the brush and the rotor, the movable support is configured to move from the second position to the first position to decrease the brush clearance in response to a fluid flow, and the fluid flow is configured to bias the movable support in an opposite direction from the biasing element. 8. The system of claim 1, wherein the biasing element comprises a spring. 9. The system of claim 1, the system comprising a turbomachine having the rotor, the stator, and the brush seal segment. 10. The system of claim 9, comprising a plurality of brush seal segments in an annular arrangement between the rotor and the stator, wherein adjacent segments of the plurality of brush seal segments comprise an intermediate biasing element. 11. The system of claim 1, wherein the stator comprises a chamber, and the biasing element is disposed within the chamber. 12. A system, comprising: a turbomachine comprising a rotor and a stator, wherein the rotor comprises a groove, and the stator comprises a chamber; anda brush seal segment, comprising: a movable support coupled to the chamber, wherein the movable support has an axial path of movement along a rotational axis of the rotor between a first position and a second position;a brush coupled to the movable support; anda biasing element disposed within the chamber and coupled to the movable support, wherein the biasing element is configured to bias the movable support along the axial path of movement from the first position to the second position in the chamber to move the brush into the groove, and the movable support is configured to move along the axial path of movement from the second position to the first position in the chamber to move the brush out of the groove. 13. The system of claim 12, wherein the biasing element is configured to bias the movable support from the first position to the second position in the chamber to move the brush into the groove during a transient condition of the turbomachine, and the movable support is configured to move from the second position to the first position in the chamber to move the brush out of the groove during a steady state condition of the turbomachine. 14. The system of claim 12, wherein the biasing element is configured to bias the movable support from the first position to the second position in the chamber to move the brush into the groove to increase a brush clearance between the brush and the rotor, and the movable support is configured to move from the second position to the first position in the chamber to move the brush out of the groove to decrease the brush clearance between the brush and the rotor. 15. The system of claim 12, wherein the turbomachine comprises a turbine. 16. The system of claim 12, wherein the biasing element is configured to bias the entire movable support from the first position to the second position in a same direction in the chamber to move the brush into the groove, and the entire movable support is configured to move from the second position to the first position in the chamber to move the brush out of the groove. 17. The system of claim 12, wherein the chamber comprises angled bottom portions, wherein a portion of the movable support is disposed within the chamber, and the biasing element in conjunction with the angled bottom portions is configured to bias the movable support in both an axial direction and a radial direction to change a brush clearance in the space between the rotor and the brush. 18. A system, comprising: a brush seal segment, comprising: a movable support comprising: a head, an extension, and a seal surface, wherein the head is configured to mount in a chamber;a brush coupled to the movable support along the seal surface, wherein the seal surface consists essentially of the brush;a biasing element coupled to the movable support, wherein the biasing element is configured to bias the entire movable support from a first position to a second position in a same axial direction to increase a brush clearance in a space between the brush and a rotor, and the entire movable support is configured to move from the second position to the first position to decrease the brush clearance in response to a fluid flow from the space to the chamber;wherein the movable support has an axial path of movement along a rotational axis of the rotor between the first and second positions; andwherein the movable support has a radial path of movement relative to the rotational axis of the rotor between the first and second positions. 19. The system of claim 18, wherein the movable support has an angled path of movement relative to a rotational axis of the rotor between the first and second positions, and the angled path of movement has an angle of approximately 5 to 60 degrees. 20. The system of claim 18, wherein the biasing element is configured to be disposed within the chamber. 21. The system of claim 18, wherein the chamber comprises angled bottom portions, and the biasing element in conjunction with the angled bottom portions is configured to bias the movable support in both the axial direction and a radial direction to change the brush clearance in the space between the rotor and the brush.