FIELD: machine building.
SUBSTANCE: invention relates to a combustion chamber system and a device for selective non-catalytic reduction and a method for pulsed introduction of a reagent into a combustion chamber. Combustion chamber can be a boiler, such as boiler of power plant for power generation, or any other combustion chamber. Device for selective non-catalytic reduction comprises nozzle with slit for reagent introduction and control system for flow control from nozzle, wherein the nozzle includes a body and an obstacle, wherein the slot is formed by the body and an obstacle or body and an intermediate disc between the body and the barrier, and a hose connected to the nozzle. Reagent flow is a pulse flow from the nozzle controlled by the control system such that during operation, due to variable volumetric flow of reagent, the rate of escape from the slot increases or decreases, causing a change in the diameter of the drops of the reagent.
EFFECT: invention provides a large area of evaporation around the nozzle and, thus, treatment of a larger portion of furnace gas by selective non-catalytic reduction.
12 cl, 17 dwg
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