Combustor and method for purging a combustor

摘要

A combustor includes an end cap. The end cap includes a first surface and a second surface downstream from the first surface, a shroud that circumferentially surrounds at least a portion of the first and second surfaces, a plate that extends radially within the shroud, a plurality of tubes that extend through the plate and the first and second surfaces, and a first purge port that extends through one or more of the plurality of tubes, wherein the purge port is axially aligned with the plate.

主权项

1. A combustor, comprising:
a. an end cap, wherein the end cap includes a first surface and a second surface downstream from the first surface; b. a shroud that circumferentially surrounds at least a portion of the first and second surfaces; c. a plate that extends radially within the shroud, the plate defining a plurality of plate passages that extend axially therethrough; d. a plurality of tubes that extend through the plate and the first and second surfaces, wherein each tube having an inlet and an outer and extend through a corresponding plate passage of the plurality of plate passage; e. a radial gap defined between one or more of the plurality of tubes and the plate at a corresponding plate passage; and f. a first purge port that extends through a wall one or more of the plurality of tubes, wherein the first purge port is radially aligned with the plate facing the corresponding plate passage.