A porous device for slowing down sloshing of liquid tanks in ships
A liquid tank sloshing and porous device technology, which is applied to some cabins in the hull, hull, ship construction, etc., can solve the problems of hull structure damage, natural liquefied gas density difference, and failure to realize liquid tank sloshing control, etc., to achieve good reduction vibrating effect
Active Publication Date: 2021-01-15
SHANGHAI MARITIME UNIVERSITY
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Problems solved by technology
[0002] The traditional anti-swash device of the liquid tank of the ship that transports liquid natural gas mainly includes a swash bulkhead and a fixed swash net device. The existing swash device does not consider the special structural characteristics of the natural gas carrier, and the ship is often in various complex conditions. The density of natural liquefied gas varies depending on the sea state and the origin of the natural liquefied gas, and the loading of the ship is complicated. When the ship is partially loaded and the complex sea state is added, it is easy to cause strong shaking of the ship, the shaking amplitude of the tank wall and the induced load. Caused damage to the hull structure, the existing device did not realize the control of tank sloshing on a simple basis
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[0026] The present invention provides a porous device for slowing down the sloshing of the liquid tank of a ship. In order to make the purpose, technical solution and effect of the present invention clearer and clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0027] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily to describe a specific order or sequence. It should be understood that the data so used are interchangeable under appropriate circumstances. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover non-exclusive inclusion, for example, a syste...
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Abstract
The invention provides a porous device for reducing sloshing of a ship liquid tank. The porous device for reducing the sloshing of the ship liquid tank comprises porous medium plate groups and a guiderail sliding mechanism, wherein the porous medium plate groups are arranged on a tank wall of the interior of the liquid tank, the porous medium plate groups are each of an integrated structure and each comprise two porous medium plates, every two porous medium plates are connected perpendicularly, one of every two porous medium plates is slidably connected with the liquid tank through the guiderail sliding mechanism, a plurality of holes are formed in every two porous medium plates, and the multiple holes are uniformly distributed on the porous medium plates; and the guide rail sliding mechanism comprises guide rails and clamping blocks, the guide rails are fixed into the liquid tank in the vertical direction, the clamping blocks are fixed to one of every two porous medium plates, and the clamping blocks are slidably connected with the guide rails. According to the porous device for reducing the sloshing of the ship liquid tank, the resonant frequency of the sloshing is changed by restraining energy of sloshing fluid of liquid natural gas in the liquid tank, the immersion depth of the porous medium plate groups in the liquid tank can be adjusted, and the damping effect of the porous medium plates is better played.
Description
technical field [0001] The invention relates to the technical field of shipbuilding, in particular to a swaying device for slowing down liquid tanks. Background technique [0002] The traditional anti-swash device of the liquid tank of the ship that transports liquid natural gas mainly includes the anti-swash bulkhead and the fixed anti-swash net device. The existing anti-swash device does not consider the special structural characteristics of the natural gas carrier, and the ship is often in various complex conditions. The density of natural liquefied gas varies depending on the sea state and the origin of the natural liquefied gas, and the loading of the ship is complicated. When the ship is partially loaded and the complex sea state is added, it is easy to cause strong shaking of the ship, the shaking amplitude of the tank wall and the induced load. The damage to the hull structure is caused, and the existing device does not realize the control of the sloshing of the liqu...
Claims
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IPC IPC(8): B63B25/08B63B11/00
CPCB63B11/00B63B25/08
Inventor 白玉龙陈威戴浩程前刘燚董学波
Owner SHANGHAI MARITIME UNIVERSITY