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Damped swell bulkhead for independent c-type cargo tanks of lng bunkering ships

A sloshing bulkhead and damping technology, applied in the direction of hull bulkhead, hull, hull parts, etc., can solve the problems of poor sloshing effect and high requirements on the strength of diaphragms, and achieve simple structure, good manufacturability, low cost effect

Active Publication Date: 2016-01-13
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method has high requirements on the strength of the diaphragm itself, and the effect of reducing sloshing is not very good

Method used

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  • Damped swell bulkhead for independent c-type cargo tanks of lng bunkering ships
  • Damped swell bulkhead for independent c-type cargo tanks of lng bunkering ships
  • Damped swell bulkhead for independent c-type cargo tanks of lng bunkering ships

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Embodiment Construction

[0028] The structure of the present invention will be further described below with reference to the accompanying drawings.

[0029] figure 1 It shows the layout of the damped surge bulkhead for the independent C-type cargo tank of the LNG bunkering ship. In the figure, this damping type bulkhead includes a transverse groove-shaped reinforcement ring 2 connected to an independent C-type cargo hold 1 , and a perforated diaphragm 3 connected to the transverse reinforcement ring 2 via No. 1 spring 4 . The transverse groove-shaped reinforcing ring 2 is fixed along the lateral circumference of the independent C-type cargo hold 1, and is arranged on both ends of the independent C-type cargo hold 1, and is in the same plane as the saddle of the independent C-type cargo hold 1.

[0030] figure 2 An enlarged view of the connection mechanism between the transverse grooved reinforcement ring 2 and the perforated diaphragm 3 is shown. The perforated diaphragm 3 is arranged in the middl...

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Abstract

The invention discloses a damping type oscillation prevention cabin wall for an independent C-type cargo hold of an LNG injection ship and belongs to the technical field of liquid cargo oscillation resistance of the independent C-type cargo hold of the LNG injection ship. The oscillation prevention cabin wall has the function that oscillation of liquid cargos in the independent C-type cargo hold can be reduced and is composed of transverse groove-shaped reinforcing rings connected with the independent C-type cargo hold, transverse hole separating boards connected with the transverse groove-shaped reinforcing rings through springs, reinforcing ribs connected to the hole separating boards and common-hinged type spring hole drilling covers connected to the hole separating boards. Each end of the independent C-type cargo hold is provided with one damping type oscillation prevention cabin wall. The damping type oscillation prevention cabin wall has the advantages of being simple in structure, capable of conducting elastic damping type limiting, good in manufacturability, convenient to install, low in manufacturing cost, capable of effectively restraining oscillation of the liquid cargoes and suitable for the independent C-type cargo hold of the LNG injection ship for oscillation reduction and a liquefied gas storage tank for oscillation reduction.

Description

technical field [0001] The invention relates to a damping type sloshing bulkhead for an independent C-type cargo hold of an LNG filling ship, which is a sloshing impact reduction structure for an independent C-type cargo hold, and belongs to the technical field of liquid cargo sloshing resistance for LNG filling ships and independent C-type cargo holds . Background technique [0002] When the liquid in the independent C-type cargo tank of the LNG bunkering ship is not full, the liquid in the tank will slosh when sailing in waves. Strong sloshing will directly lead to serious average pollution events, and for independent C-type cargo tanks arranged longitudinally, when the natural frequency of liquid sloshing is close to the pitch frequency of the ship, the liquid sloshing and pitching motions resonate, resulting in The bulkhead of the independent C-type cargo tank generates a large sloshing impact, due to which components constituting the independent C-type cargo tank may b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B63B3/56
Inventor 林焰管官陈明于雁云李楷金朝光王运龙马坤陆丛红张明霞
Owner DALIAN UNIV OF TECH
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