FIELD: metallurgy; devices for delivery of gas to reservoirs.
SUBSTANCE: proposed device has extended passage for flow of gas; it is made in form of pipe running inside gas flowing passage from rear end to front end. Some blades are supported near end of passage by central structure; these blades are used for guide of flow and for forming vortex of hot gas escaping from passage. Wall of passage is below flow; it is cooled with water flowing through inner part of end-piece of passage. Front end of central structure on which blades rest is cooled with water delivered forward through central water passage. Cooling water is returned through central structure via circular passage.
EFFECT: enhanced resistance of device at very high surrounding temperatures.
15 cl, 9 dwg
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