Machinery arrangement for marine vessel
AssigneeWäRtsilä Finland Oy
InventorsTorbjörn Henriksson, Marko Lehikoinen
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Abstract
The invention relates to a machinery arrangement, which comprises a combus-tion unit (3) arranged in an engine room (11), and an exhaust gas duct assem-bly (4) connected to the combustion unit (3) for receiving an exhaust gas flow and for leading the exhaust gas flow to the atmosphere through an exhaust gas cleaning system (5) provided with an exhaust gas pipe (52). In order to condi-tion the exhaust plume, the exhaust gas pipe (52) is arranged in an enclosure (114), whereby the enclosure (114) is arranged in flow connection with the en-gine room (11) in order to provide heat for the exhaust gas pipe (52) by means of a heated air flow from the engine room.
Claims12
A machinery arrangement for a marine vessel, the machinery arrangement comprising:
- an engine room;
- a combustion unit arranged in the engine room;
- an exhaust gas cleaning system comprises a scrubber unit, the scrubber unit includes an exhaust gas pipe arranged in an enclosure;
- and
- an exhaust gas duct assembly connected to the combustion unit for receiving an exhaust gas flow and leading the exhaust gas flow to the atmosphere through the exhaust gas cleaning system,
- wherein the enclosure is arranged in flow connection with the engine room in order to provide heat for the exhaust gas pipe by a heated air flow from the engine room,
- wherein the engine room includes an engine room ventilation outlet leading to the enclosure, the engine room ventilation outlet being in flow connection with the enclosure,
- wherein the scrubber unit is arranged outside the enclosure, and
- wherein the enclosure is physically connected to the engine room ventilation outlet.
A method for operating a machinery arrangement of a marine vessel, the method comprising:
- leading an exhaust gas flow from a combustion unit arranged in an engine room through an exhaust gas duct assembly to an exhaust gas cleaning system;
- leading the exhaust gas flow from the exhaust gas cleaning system to the atmosphere;
- leading the exhaust gas to a scrubber unit provided with an exhaust gas pipe in an enclosure;
- and
- leading a heated air flow from the engine room into the enclosure and into contact with the exhaust gas pipe;
- wherein the scrubber unit is arranged outside the enclosure.
Dependencies are inferred from the claim text.