船舶废气脱硝系统

Ship waste gas denitration system

Abstract

A ship waste gas denitration system comprises a waste gas direct exhaust pipeline connected with a gas outlet of a waste gas collecting tank through a first valve, a waste gas denitration pipeline connected with the gas outlet of the waste gas collecting tank through a second valve and a denitration reactor connected in the waste gas denitration pipeline, wherein the denitration reactor comprises a urea evaporation chamber, a mixer and a reacting chamber. The urea evaporation chamber is provided with a urea solution spray gun. The mixer is connected with the urea evaporation chamber and the reacting chamber. When the first valve is opened and the second valve is closed, waste gas is exhausted through the waste gas direct exhaust pipeline; and when the first valve is closed and the second valve is opened, the waste gas enters the urea evaporation chamber of the denitration reactor through the waste gas denitration pipeline, then is mixed with urea, enters the reactor through the mixer, and is subjected to denitration and then exhausted. According to the ship waste gas denitration system, the urea evaporation chamber, the mixer and the reacting chamber are combined in the denitration reactor, so that the structure is more compact.
一种船舶废气脱硝系统,包括废气直排管路,通过第一阀门与废气集气箱的排气口连接;废气脱硝管路,通过第二阀门与废气集气箱的排气口连接;脱硝反应器,连接在废气脱硝管路中,包括尿素蒸发室、混合器与反应室,尿素蒸发室设有尿素溶液喷枪,混合器连接尿素蒸发室与反应室;其中,第一阀门开启、第二阀门关闭,废气经废气直排管路排出;第一阀门关闭、第二阀门开启,废气经废气脱硝管路进入脱硝反应器的尿素蒸发室后,与尿素混合并经混合器进入反应器进行脱硝后排出。本发明的船舶废气脱硝系统中尿素蒸发室、混合器与反应室合并在脱硝反应器中,结构更加紧凑。

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