Water injection device
A water injection device (TIG) is a work ship and hydraulic engineering vehicle that removes silt deposits in fairways and docks with a flushing pipe.
history
In the 1980s it became more and more problematic to dump the dredged and polluted silt from the port of Hamburg in an environmentally friendly manner and in accordance with regulations. Out of this necessity the idea arose to stir up the silt and let the polluted components drift with the current down the Elbe. This method, water balance law is not regarded as interference in a flowing river, was later adopted by other port operators.
commitment
From a free-moving ship, water is injected into the bottom of locks , outer harbors, berths or fairways through a pipe beam provided with nozzles . The sediments that are thrown up as a result are thrown up like a cloud and carried away with the natural current. The water injection system consists of powerful flushing water pumps and the flushing pipe system with winch system, adjustment and depth measuring device .
For example, the following water injection devices are in use in German ports:
- Akke (built in 1943) in the area of the Lower Elbe and Lower Weser
- Njörd (built in 1994) in the Hamburg ports
- Hol Deep (built in 1994) in the Bremen ports
- Get blank (built in 2006) in the Bremerhaven ports
- Steubenhöft (built in 2009) in the Cuxhaven ports
- Utlandshörn (YOC 2016)
Akke
North
Get blank
Steubenhöft
Utlandshörn
.jpg){kind=spacer}
_2010-by-RaBoe-05.jpg)
See also
literature
- Fassmer: water injection device and coast guard boat delivered . In: Hansa . July 2009, ISSN 0017-7504 , p. 26-29 .
Web links
- The water injection process (PDF; 3.9 MB)
- The use of water injection dredging in the port of Hamburg - experiences and studies . ( Memento from October 22, 2013 in the Internet Archive )