B-type independent liquid cargo compartment leakage liquid cargo leading-out structure

Abstract

The invention provides a B-type independent liquid cargo compartment leakage liquid cargo leading-out structure. A liquid cargo compartment exists in the ship body. The lowest point of the bottom surface of the liquid cargo compartment is provided with a vertical flow guiding pipe. The upper part of the flow guiding pipe is provided with a plurality of flow guiding holes along the circumferentialdirection of the flow guiding pipe. Leakage liquid cargo flows into the flow guiding pipe through the flow guiding holes. The inner bottom of the ship body is provided with a liquid collecting trap. The flow guiding pipe extends into the liquid collecting trap. The flow guiding pipe is divided into an upper pipe and a lower pipe. An explosion plate is arranged between the upper pipe and the lowerpipe. The leakage liquid cargo leading-out structure according to the invention can ensure safety of the ship body structure on the condition of liquid cargo leakage in the liquid cargo compartment, thereby preventing direct contact between the liquid cargo and the ship body structure, and furthermore effectively collecting and processing the leaked liquid cargo.

Description

technical field [0001] The invention relates to a B-type liquefied gas ship, in particular to a B-type independent liquid cargo tank leaking liquid cargo leading-out structure. Background technique [0002] The liquefied gas carrier is a special ship used to transport low-temperature liquid cargo such as liquefied petroleum gas and liquefied natural gas. The liquid cargo is loaded in the liquid cargo tank of the liquefied gas carrier. According to the requirements of the IGC Code, liquid cargo tanks are divided into five main types of cargo containment systems: independent liquid cargo tank containment systems, membrane liquid cargo tank containment systems, semi-membrane liquid cargo tank containment systems, integral liquid cargo tank containment systems and Internally insulated cargo tank containment systems. Among them, the independent liquid cargo tank is a self-supporting liquid cargo tank, which is not a part of the hull structure and has little effect on the strengt...

AI Technical Summary

Problems solved by technology

Typical plate structure, SPB prismatic cargo tank is very similar to MOSS in construction, and part of the secondary shielding is also composed of the drip tray in the bottom area of ​​the cargo tank, but due to the characteristics of the plate structure, it is difficult for the leaked cargo to collect into the drip tray In general, it is necessary to set up multiple drip trays and splash guards, which increases the complexity and cost of the system

MOSS spherical tanks are widely used in the field of LNG ships, but in recent years, due to many factors such as its low tank capacity utilization, tight deck space, and complicated construction techniques, the market share of real ships has gradually been widened by membrane-type ships.

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