Oy Wartsila Ab

Tapio Ritvanen

Hannu Virta

Joachim Grasbeck

A method for providing a floating structure with self-supporting box-like cabin elements. A deck or the like is prepared for receiving the cabin elements, which are built up with walls and a roof and with an open bottom. Transport units, by which the cabin elements are movable on the deck, are temporarily attached to the cabin elements below and inside their walls.

Cabin element system for ships

A method for treating gaseous combustion products, in particular, combustion products containing sulphur dioxide and smoke gases. The combustion products are led to a scrubber in which they are brought into contact with scrubbing water, into which a base, preferably calcium hydroxide, has been added for obtaining suitable neutralization of the acids created in the scrubber. The scrubbing water is sprayed into the gaseous combustion products, preferably in the form of a finely divided mist, and after the scrubbing operation the combustion products are led through a heat exchanger for cooling and for recovery of condensation water. The scrubbing water used and the condensation water are collected in a settling tank, at the bottom of which solid impurities are caused to settle for removal at suitable intervals. The purified surplus water is led from the settling tank and is reintroduced into the scrubber. The amount of base mixed into the scrubbing water for converting the acids created in the scrubber into settling salts, is so chosen, that the pH value of the liquid in the settling tank is 7-10, preferably 8-9.

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Turku, Finland

Tapio Ritvanen