Refitting method of container ship fuel tank

Abstract

The invention discloses a refitting method of a container ship fuel tank. The refitting method comprises the following steps that an existing guide rail frame structure in a standard cargo tank is dismantled; according to the bulkhead structure characteristics of the target cargo tank, double-layer watertight bulkhead structures are arranged at the front end part and the rear end part in a cabin body of the target cargo tank respectively; a plurality of first supporting seats are arranged in the target cargo tank; the B-type fuel cabin of which the top is provided with the second supporting seat is hoisted into a target cargo tank; a first fireproof insulation structure is arranged on a bottom deck of the fuel gas supply structure module; and the fuel gas supply structure module is hung atthe upper part of the B-type fuel cabin, and a pipeline system and an electrical system of the B-type fuel cabin are connected with system equipment in the fuel gas supply structure module. On the basis that an original container ship body structure is reserved to the maximum extent, a container ship is modified into LNG fuel from traditional heavy oil fuel, the emission amount of carbon dioxideand nitric oxide is greatly reduced, and the increasingly strict environmental protection requirement is met.

Description

technical field [0001] The invention relates to ship building, in particular to a method for refitting a fuel tank of a container ship. Background technique [0002] Under the current background of stricter environmental protection pressure, LNG fuel is gradually recognized by the maritime community as a clean energy source. The LNG containment system is used for the isolation and heat insulation of low-temperature LNG liquid cargo, and is a necessary and core system for ships to load LNG fuel tanks. LNG containment systems are mainly divided into membrane type and independent type, and the independent type cargo tank is further divided into type A, type B and type C. The B-type tank has the characteristics of tank capacity utilization, flexible layout and good anti-sloshing performance, so the application of the B-type tank has a great market prospect. [0003] Container ships are one of the three main types of ships in the maritime industry. At present, most container sh...

AI Technical Summary

Problems solved by technology

In order to meet the increasingly stringent environmental protection requirements, there is a huge potential demand for LNG fuel power conversion, but currently there are very few actual projects to convert container ships from traditional heavy oil fuel to LNG fuel, and there is still a lack of mature, efficient and reliable conversion solutions in the market And technology

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