| 摘要 |
<p>An apparatus for injecting gas into a vessel is disclosed. The apparatus comprises a gas flow duct from which to discharge gas from the duct, an elongate central structure extending within the gas flow duct from its rear end to its forward end, and a plurality of flow directing vanes disposed about the central structure adjacent the forward end of the duct. The forward end of the central structure and the vanes are water cooled by separate supply passages.</p> |
