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Cargo hold structure of very large crude carrier without cross brace and with few wash bulkheads

A technology for washing bulkhead and super-large, which is applied in the direction of ship hull, ship construction, and used for bulk cargo, etc., can solve the increase of construction workload and weight of horizontal girders of longitudinal bulkhead, can not significantly reduce the structural weight of cargo hold area, can not significantly Reduce the construction workload of the cargo hold area, and achieve the effect of saving the weight of the empty ship and the workload of welding construction, which is conducive to segmented construction and saves the workload of welding

Active Publication Date: 2019-08-06
708TH RES INST OF CSSC
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, such an involved scheme has caused a sharp increase in the construction workload and weight of the horizontal girders of the longitudinal bulkhead, and cannot significantly reduce the structural weight of the cargo hold area, nor can it significantly reduce the construction workload of the cargo hold area

Method used

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  • Cargo hold structure of very large crude carrier without cross brace and with few wash bulkheads
  • Cargo hold structure of very large crude carrier without cross brace and with few wash bulkheads
  • Cargo hold structure of very large crude carrier without cross brace and with few wash bulkheads

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Embodiment Construction

[0054] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. The present invention is not limited to this embodiment, and other embodiments may also belong to the scope of the present invention as long as they conform to the gist of the present invention.

[0055]In a preferred embodiment of the present invention, based on the above-mentioned problems existing in the prior art, a cargo tank structure of an ultra-large oil tanker without transverse braces and less swash bulkhead is provided, such as Figure 3 to Figure 6 shown, including:

[0056] Double bottom structure 1, several longitudinal bulkheads 2 and several transverse bulkheads 3 are arranged above the double bottom structure 1, and each longitudinal bulkhead 2 is vertically connected with each transverse bulkhead 3 to form several cargo oil tanks;

[0057] a number of cargo oil tanks including a number of center cargo oil tanks and a number ...

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Abstract

The invention provides a cargo hold structure of a very large crude carrier without a cross brace and with few wash bulkheads, and relates to the technical field of shipbuilding. The structure comprises a double bottom structure and a double side structure. The ratio of the cabin length to the ship length of at least two central tanks included in a central tank is smaller than 0.13. The ratio of the cabin length to the ship length of at least three pairs of side tanks in the side tanks is smaller than 0.13. The transverse reinforcing frame comprises a first type of inclined supporting rods, asecond type of inclined supporting rods, a third type of inclined supporting rods, a fourth type of inclined supporting rods, a fifth type of inclined supporting rods and a small toggle plate. A horizontal cross arm does not need to be arranged, so that the welding workload is reduced, segmental construction is facilitated, and the construction process of the VLCC cargo hold is greatly reduced; and at least two pairs of side tanks do not need to be provided with swash bulkheads, so that much empty ship weight and welding construction workload are saved, and the process cost and the material cost of a shipyard are effectively reduced.

Description

technical field [0001] The invention relates to the technical field of shipbuilding, in particular to a cargo hold structure of an ultra-large oil tanker without transverse braces and less swash bulkheads. Background technique [0002] In a traditional VLCC (Very Large Crude Carrier, very large oil tanker), there is usually a horizontal cross brace between the vertical girders of the longitudinal bulkhead of the cargo hold. The horizontal cross brace is a unique structural member of VLCC to reduce the For the span, optimize the size of the vertical girders of the longitudinal bulkhead and the adjacent structures such as the horizontal girders connected to it, so as to improve the overall bearing capacity of the transverse frame. In addition, since the single cargo oil tank of VLCC is longer, the setting of cross braces is also beneficial to reduce the sloshing load. However, the setting of horizontal cross braces caused a lot of trouble for the division and subsequent const...

Claims

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Application Information

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IPC IPC(8): B63B11/02B63B25/08
CPCB63B11/02B63B25/08
Inventor 邱伟强尚保国韩龙尚亚杰顾雅娟李留洋
Owner 708TH RES INST OF CSSC
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