Marine liquefied gas fuel tank and ship

Abstract

The invention provides a marine liquefied gas fuel tank and a ship, the marine liquefied gas fuel tank at least comprises tank bodies connected in parallel, a gas chamber and a liquid accumulation well, a valve with watertight bulkheads not communicated and cooperatively kept closed is arranged between every two adjacent tank bodies, when the ship is damaged, only one tank body is damaged and water enters the ship at the maximum probability, other tank bodies are not affected, the damaged water inflow of the ship is reduced, and the service life of the ship is prolonged. And the ship stability and safety are improved. The gas fuel is continuously consumed, the watertight bulkhead is arranged, the free liquid level of liquefied gas with different liquid level heights is reduced, the sloshing load in the cabin is reduced, and the safety of the ship structure is improved; through the arrangement of the gas-phase communicating pipe and the liquid-phase communicating pipe, only one gas chamber and one liquid accumulation well need to be arranged, the number of liquid cargo pumps, liquid cargo equipment and pipelines is reduced, and cost is saved. The marine liquefied gas fuel tank is arranged in the ship in the ship width direction and can protrude out of a deck, the gravity center of the whole ship is lowered, the space utilization rate is increased, the volume of ship liquefied gas fuel is increased, and the ship voyage is increased.

Description

technical field [0001] The invention relates to a structural design of a liquefied gas fuel tank, in particular to a structural design of a marine liquefied gas fuel tank. Background technique [0002] As carbon peaks in 2030 and carbon neutrality in 2060 is approaching, it is necessary to consider reducing carbon dioxide emissions as much as possible in the process of ship design and operation. Among them, the use of liquefied gas fuels such as methane, ethane, ammonia, and hydrogen is the key to reducing carbon dioxide emissions. effective means of emission. [0003] The storage tanks of conventional liquefied gas fuels on ships are often arranged in the open area above the deck, and adopt the shape of cylindrical tanks. However, for fuels with very low energy density such as hydrogen and ammonia, it is necessary to set up a very large fuel tank above the deck, resulting in a very high center of gravity and poor stability of the whole ship. However, if it is arranged bel...

AI Technical Summary

Problems solved by technology

[0006] In view of the above-mentioned shortcomings of the prior art, the object of the present invention is to provide a marine liquefied gas fuel tank and a ship, which are used to solve the problems of low space utilization of the fuel tank arrangement scheme and the safety of ship structure and stability in the prior art

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