EXHAUST EMISSION CONTROL DEVICE

To facilitate installation of the device to a marine vessel while avoiding the leakage of a reductant from a bypass passage.SOLUTION: An exhaust emission control device 100 comprises: an exhaust emission receiver 10 having a first passage 16 and a second passage 17 extending in a ship stern directio...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: MURAKAMI MASAAKI, FUJIBAYASHI TAKAHIRO
Format: Patent
Sprache:eng ; jpn
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Beschreibung
Zusammenfassung:To facilitate installation of the device to a marine vessel while avoiding the leakage of a reductant from a bypass passage.SOLUTION: An exhaust emission control device 100 comprises: an exhaust emission receiver 10 having a first passage 16 and a second passage 17 extending in a ship stern direction of a marine vessel, and communicating with each other at a ship stern end part, a flow-in part 12 arranged in the first passage 16, and a first discharge part 13 arranged at the ship stern end part of the second passage 17; a nozzle 20 for spraying a reductant or the like; a downstream-side passage 4 connected to the first discharge part 13; a NOx removal reactor 30 arranged at the downstream-side passage 4; and a second opening/closing valve 26 for opening and closing a bypass passage 9 which bypasses the NOx removal reactor 30. The exhaust emission receiver 10 has an exhaust emission second discharge part 14 arranged in the first passage 16, and connected with the bypass passage 9, and the nozzle 20 is arranged in a position at a ship stern side rather than the second discharge part 14 of the first passage 16.SELECTED DRAWING: Figure 2 【課題】還元剤のバイパス通路からの漏出を回避しつつ、船舶への設置を容易化する。【解決手段】排ガス浄化装置100は、船舶の船首尾方向に延び、互いに船尾側端部で連通する第1通路16及び第2通路17と、第1通路16に設けられる流入部12と、第2通路17の船首側端部に設けられる第1排出部13とを有する排ガス受け10と、還元剤等を噴霧するノズル20と、第1排出部13に接続される下流側通路4と、下流側通路4に設けられる脱硝反応器30と、脱硝反応器30をバイパスするバイパス通路9を開閉する第2開閉弁26とを備え、排ガス受け10は、第1通路16に設けられ、バイパス通路9が接続される排ガスの第2排出部14を有し、ノズル20は、第1通路16における第2排出部14よりも船尾側の位置に設けられている。【選択図】図2