Device and method for reducing noise
AssigneeIHC Holland IE B.V.
InventorsBoudewijn Casper Jung, Jan Albert Westerbeek
Life of this patent
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Abstract
The present invention relates to a device for the passive reduction of the sound vibrations in a liquid resulting from a sound source arranged below the liquid level of a body of water, the device comprising an elongate tube which can be arranged over the sound source, the tube comprising an outer wall and inner wall, wherein the tube is designed to maintain a certain desired pressure in the intermediate space between the inner and outer wall. In this case, the pressure is reduced with respect to the ambient pressure. As a result of the reduced pressure, the sound vibrations will less readily travel to the outside and the noise level in the area around the tube is reduced.
Claims22
-21. (canceled)
A device for the passive reduction of sound vibrations in a liquid resulting from a sound source arranged below the liquid level of a body of water, the device comprising:
- an elongate tube arrangeable over the sound source, the tube including an outer wall and an inner wall and an intermediate space in between, extending in the longitudinal direction of the tube, with the contents of the intermediate space between the inner and outer wall being formed completely by gaseous matter for reducing vibration transmission via the intermediate space to the body of water.
A device for the passive reduction of the sound vibrations in a liquid resulting from a sound source arranged below the liquid level of a body of water, the device comprising:
- an elongate tube which can be arranged over the sound source, as well as pump means for partially pumping out the central interior space delimited by the tube in order to reduce the transmission of noise from the sound source to the inside of the tube.
An assembly comprising:
- a sound source which can be arranged below the liquid level of a liquid mass;
- and
- a device, provided around the sound source, the device including an elongate tube arrangeable over the sound source, the tube having an outer wall and an inner wall and an intermediate space in between, extending in the longitudinal direction of the tube, with the contents of the intermediate space between the inner and outer wall being formed completely by gaseous matter for reducing vibration transmission via the intermediate space to the body of water.
An arrangement for driving a pile element, in particular a pile, into the ground under a body of water, the arrangement comprising:
- a pile-driving device for driving the pile element into the ground;
- and
- a device, for the passive reduction of sound vibrations in the body of water, the device including an elongate tube arrangeable over the sound source, the tube having an outer wall and an inner wall and an intermediate space in between, extending in the longitudinal direction of the tube, with the contents of the intermediate space between the inner and outer wall being formed completely by gaseous matter for reducing vibration transmission via the intermediate space to the body of water;
- wherein the shape and dimensions of the inner wall of the tube are designed such that the latter can be arranged along the pile element.
A method for the passive reduction of the sound vibrations in a liquid resulting from a sound source arranged under the liquid level of a body of water, the method comprising:
- using a device for the passive reduction of the sound vibrations in a liquid resulting from a sound source arranged below the liquid level of a body of water, the device including an elongate tube and pump for partially pumping out a central interior space delimited by the tube in order to reduce the transmission of noise from the sound source to the inside of the tube;
- arranging the tube of the device in the body of water, wherein the tube is positioned around the sound source;
- anchoring the tube at the bottom end and/or the top end.
Dependencies are inferred from the claim text.