IMPROVEMENTS TO WET MARINE EXHAUST SYSTEM CONTAINING A WATER SEPARATION DEVICE AND A FILTER TO REMOVE IMPURITIES FROM THE COOLING WATER

摘要

A marine wet exhaust system includes an exhaust gas/cooling water separator (24) for receiving an exhaust gas and waste cooling water mixture through a cooling water/exhaust gas inlet (66) . The exhaust system also includes a reservoir for collecting the waste cooling water separated from the exhaust gas and a de- watered exhaust gas discharge conduit (38) . The exhaust system also includes a cooling water discharge conduit (34) and a reservoir discharge pump (50) in the cooling water discharge conduit (34) configured to pump cooling water collected in the reservoir, the cooling water discharge conduit (34) and reservoir discharge pump (50) fluidically connected to the reservoir through a water outlet (32) having a first vertical height in the reservoir. The marine wet exhaust system also includes a pump controller (56) for controlling the reservoir discharge pump (50) and a water level sensing system (70) configured to provide a signal to the pump controller (55) based on the water level in the reservoir. The water level sensing system (70) is configured to function without the need for the reservoir to be vented to atmosphere .