To suppress to the minimum exhaust gas recirculation systems to be added, and to reduce NOx discharged from a marine boiler. An exhaust gas recirculation system includes: a first inert gas line (33) that branches from a path for discharging boiler exhaust gas burned in the boiler (1), and makes inert gas flow through a crude oil tank (22) through a scrubber (25); a VOC gas line (34) that makes VOC gas flow inside a furnace of the boiler (1) or through a burner (3) from the crude oil tank (22) through a VOC gas filter (27); an inert gas bypass line (21) that connects a portion closer to a downstream side than the scrubber (25) with a portion closer to an upstream side than the VOC gas filter (27); and a control device (50) that makes the inert gas flow through the inert gas bypass line (21), and makes the inert gas supplied to the boiler (1) or the burner (3) in a case where an amount of the VOC gas generated from the crude oil tank (22) is not more than a predetermined value.
MARINE BOILER COMPRISING AN EXHAUST GAS RECIRCULATION SYSTEM AND EXHAUST GAS RECIRCULATION METHOD
MARINE KESSEL UMFASSEND EIN ABGASRÜCKFÜHRUNGSSYSTEM UND ABGASRÜCKFÜHRUNGSVERFAHREN
CHAUDIÈRE DE NAVIRE MUNIE UN SYSTÈME DE RECIRCULATION DE GAZ D'ÉCHAPPEMENT ET PROCÉDÉ DE RECIRCULATION DE GAZ D'ÉCHAPPEMENT
26.09.2018
Patent
Elektronische Ressource
Englisch
IPC: | F23C METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN AIR , Verfahren oder Vorrichtungen zur Verbrennung flüssiger oder in Luft verteilter fester Brennstoffe / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / F23G Einäscherungsöfen , CREMATION FURNACES |
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