Leakage guiding device for B type enclosure system of LNG ship

Abstract

The invention, which belongs to the technical field of ship construction, discloses a leakage guiding device for a B type enclosure system of an LNG ship. The device comprises a flow guiding mechanism, guiding tubes, lap plates and a supporting mechanism. The flow guiding mechanism includes a plurality of guiding plates with guiding slots; the multiple guiding plates are connected in an end-to-endmanner on the upper surface of an insulating layer of an LNG ship B type enclosure system to form an annular liquid collecting tank; and the annular liquid collecting tank and an LNG ship collectiondevice are communicated through the guiding tube. The every two adjacent guiding plates are connected by a transition plate; the lower surface of the flow guiding mechanism is connected with the uppersurface of the insulating layer of the LNG ship B type enclosure system; the two sides of the flow guiding mechanism are connected with an anti-splash screen through the lap plates; and the upper surface of the flow guiding mechanism is connected with a bottom plate of an LNG ship liquid cargo hold by the supporting mechanism. The flow guiding mechanism can guide the leakage LNG out of the gap between the liquid cargo hold and the anti-splash screen timely, thereby preventing the accumulation of lots of LNG effectively and protecting the structures of the liquid cargo hold and the anti-splashscreen from being damaged by the LNG.

Description

technical field [0001] This patent is a divisional application of the invention patent application 201810623030.6 on June 15, 2018. [0002] The invention belongs to the technical field of shipbuilding, in particular to a leak diversion device for a B-type containment system of an LNG ship. Background technique [0003] The new B-type containment system of large LNG ships is characterized by an independent self-sustaining containment system. When the LNG ship is loading and sailing, due to the influence of waves and sea winds, the LNG in the B-type cargo hold will keep sloshing, thus impacting the B-type. At the same time, due to the ultra-low temperature of LNG at minus 163°C, the structural stress of the B-type cargo tank also changes greatly. It may cause cracks in the structure of the Type B cargo tank, resulting in leakage. [0004] If the ultra-low temperature LNG leaks to the steel plate of the hull structure, it will cause the steel plate to be brittle, seawater wi...

AI Technical Summary

Problems solved by technology

May lead to cracks in the structure of the Type B cargo tank, resulting in a leak

[0004] If the ultra-low temperature LNG leaks to the steel plate of the hull structure, it will cause the steel plate to be brittle, seawater will enter the cargo hold, and even the serious consequences of the ship sinking, and the heat convection caused by the leakage will further increase the evaporation rate of the liquid cargo. Therefore, the leaked LNG liquid How to effectively recycle the goods into a special collection device is a big problem

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