Seal for fuel distribution plate

摘要

A fuel flow passes through a micromixer section of a gas turbine that includes a plurality of mixing tubes for transporting a fuel/air mixture and a distribution plate including a plurality of distribution holes and a plurality of tube holes for accommodating the mixing tubes. Each of the mixing tubes includes a plurality of fuel holes through which fuel enters the mixing tubes. The tube holes and the mixing tubes form a plurality of annulus areas between the distribution plate and the mixing tubes. The distribution holes and the annulus areas are configured to pass the fuel flow through the distribution plate toward the fuel holes. A flow management device modifies an effective size of the annulus areas to control a distribution of the fuel flow through the distribution holes and the annulus areas of the distribution plate to provide a uniform fuel/air composition in each of the mixing tubes.

主权项

1. A gas turbine combustor, comprising:
a plurality of mixing tubes arranged to transport a fuel/air mixture to a reaction zone for ignition, each mixing tube including a plurality of fuel holes through which fuel enters the respective mixing tube; a plate having a plurality of tube holes formed therein, the plurality of tube holes being configured to accommodate the plurality of mixing tubes thereby forming a plurality of annulus areas between the plate and the plurality of mixing tubes, the plurality of annulus areas being configured such that the fuel flows through the plurality of annulus areas, the plurality of fuel holes being arranged on a downstream side of the plate with respect to the fuel flow; and a flow management device directly attached to the plurality of mixing tubes and including a portion situated within the plurality of annulus areas to control a distribution of the fuel to the plurality of fuel holes.