JP2003502072A5 - - Google Patents

Claims (14)

  A method for preventing the breeding of barnacles, shellfish and other breeding organisms on seawater box components, particularly seawater box cooling devices, such as those used on ships and offshore platforms, to combat the breeding organisms by overheating In the above method, the seawater in the seawater box is isolated from the surrounding environment, the seawater box cooling device is removed from the cooling operation, and the high-temperature circulation circuit is mechanically switched to the seawater box cooling device to be protected. By using the high-temperature circulation circuit itself, the trapped seawater is heated locally and repeatedly in a short time and regularly.   In a plurality of seawater boxes (1A; 1B) in the seawater system, a conduit and a guiding groove for operatively coupling the plurality of seawater boxes, a seawater box cooling device (2A; 2B), a pump (20A; 20B), and a controller Seawater system by regularly overheating the confined seawater for a short time and locally, section by section, with components incorporated into the seawater system such as the class (21A, 21B; 22A, 22B) The method according to claim 1, characterized in that the whole is protected from breeding of organisms in sections by means of confined and superheated seawater.   In a seawater box without a box cooling device, the protection against the propagation of organisms is carried out locally and repeatedly in a short time and regularly by heating an additional tube bundle attached directly to the seawater box 3. A method according to claim 1 and claim 2.   4. Any of the claims 1 to 3, characterized in that, via the cleaning connection (6), cleaning of the interrupted integrated element with fresh water can be carried out before or after the end of the local superheat treatment. The method of crab.   5. A local and short-time overheating is regularly and automatically performed and automatically monitored using an integrated measurement and control system and regulator. The method in any one of.   An apparatus for carrying out the method according to any of claims 1 to 5, comprising individual sea water boxes (1A; 1B) of a sea water system and conduits and channels for connecting the sea water boxes; Components incorporated in the seawater system such as the seawater box cooling device (2A; 2B), pump (20A; 20B), and controllers (21A, 21B; 22A, 22B) form separate partial systems. A device characterized in that the confined seawater is thus subjected to a short, local and regular overheating, thereby protecting the entire seawater system from breeding section by section.   Said partial system is in an active partial system (seawater mode, open armor door (4A) and closed shut-off equipment (21A) in active seawater box (1A), and passive seawater box (1B). Closed shut-off equipment (21B)) and passive partial systems (cleaning mode, closed armor door (4B) and open shut-off equipment (22B) in passive sea water box (1B)) and active 7. The device according to claim 6, characterized in that it is divided into a shut-off equipment (22A) opened in the seawater box (1A).   7. Device according to claim 6, characterized in that the drainage slit (3) and / or the inflow slit (8) in the outer shell of the seawater box (1) are mechanically closed individually or simultaneously.   9. The device according to claim 1, wherein the closing device (4) is an armor door.   10. A device according to any one of the preceding claims, characterized in that the closing device (4) is a resilient sliding plate (17).   Device according to any of the preceding claims, characterized in that the closing device (4) is moved by an individual or common drive device (10).   12. The device according to claim 1, wherein the closure device (4) is coated with a special material, in particular Teflon (R), which prevents the propagation of organisms and reduces friction. .   An integrated additional hot tube bundle (9) of the hot circuit of the main motor (13) is provided in the sea water box cooling device (1) for rapid local heating of the trapped sea water. The device according to claim 1, wherein the device is a device.   14. A device according to any one of the preceding claims, characterized in that a special additional auxiliary device, in particular a steam distribution pipe, is installed in the seawater box (1).