Apparatus and method for reducing noise
A kind of equipment and sound source technology, applied in the field of acoustic vibration, can solve the problems that the isolation screen is not suitable for underwater use, and the sleeve is not suitable for inflatable intervals, etc.
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[0034] The drawing shows a piling device 1 by means of which pile elements 2 can be driven into the bottom 3 of a body of water 4 . An elongate tube 5 is arranged around the pile 2 . The elongated tube 5 comprises an outer wall 6 and an inner wall 7 . The outer wall 6 and the inner wall 7 are arranged concentrically with respect to each other and have an intermediate space 8 therebetween. In another non-illustrated embodiment, more tubes are arranged to be inserted into each other, thereby forming more intermediate spaces. This intermediate space 8 forms a pressure chamber which can be decompressed. To this end, the intermediate space 8 is sealed at the top by a first spacer 9 and at the bottom by a second spacer 10 . Said spacer not only seals the intermediate space 8 so that air cannot penetrate into it, but is also designed to insulate vibrations in order to prevent sound waves incident on the inner wall 7 from being transmitted to the outer wall 6 via a more or less rig...
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