Serck Evaporators Installed In USSR Fish Factory Ships
— Literature Available Serck GmbH of Hamburg, West Germany, recently supplied four seawater evaporators that have been installed aboard the Soviet fish factory vessels Vladivostok and Dalnyvostok. These ships were built about 20 years ago as whalers by Howaldtswerke-Deutsche Werft in Kiel, and have now been converted by Keppel Shipyard in Singapore into what are said to be the world's largest fish factory vessels.
The conversions required a supply of an additional 480 tons per day of process and drinking water per ship. An economical solution was presented by Serck using two type RX design evaporators for each ship, each with three stages. The vapor produced in the first stage serves as heating medium for the second stage, and that produced in the second stage is the heating medium for the third stage. With this method, one kilogram of heating steam produces approximately 2.5 kilograms of fresh water.
A separate purification unit disinfects and hardens the amount of water required daily for drinking in order to make it suitable for human consumption; however, the largest part of the water produced is used as process water. When the units were first put into operation in Singapore, an output of approximately 110 percent was reached at a seawater temperature of 32 C. For further information and free literature on Serck evaporators,