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System and method for supplying fuel in liquefied natural gas fueled ship

A fuel supply system and liquefied natural gas technology, applied in the direction of adding non-fuel substances to fuel, charging system, container discharge method, etc., can solve the problems of excessive natural gas occupation and space limitation

Active Publication Date: 2019-09-17
DAEWOO SHIPBUILDING & MARINE ENG CO LTD
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  • Abstract
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  • Claims
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Problems solved by technology

[0003] On the other hand, natural gas has a gas phase that occupies an excessively large volume at room temperature and pressure, thereby presenting significant space constraints

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  • System and method for supplying fuel in liquefied natural gas fueled ship
  • System and method for supplying fuel in liquefied natural gas fueled ship

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Embodiment Construction

[0062] The above and other aspects, features and advantages of the present invention will become apparent from the detailed description of the following embodiments in conjunction with the accompanying drawings.

[0063] Exemplary embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that throughout the specification and drawings, like reference numerals will refer to like components.

[0064] Although liquefied natural gas will be described by means of examples in the following examples, it should be understood that the present invention is applicable to various types of liquefied gases and that the following examples can be modified in various ways without limiting the scope of the present invention.

[0065] In addition, according to the operating conditions of the system, the fluid in each pipeline in the following embodiments may be in the liquid phase, in the gas / liquid mixed phase, in the g...

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Abstract

The present invention relates to a system and a method for supplying a fuel in a liquefied natural gas fueled ship to which an engine using liquefied natural gas as a fuel is applied, wherein a pump and a regasification facility are used to supply a liquefied natural gas fuel, without the aid of a compressor, in compliance with fuel supply conditions of the engine. A system for supplying a fuel in a liquefied natural gas fueled ship according to the present invention comprises: an Otto cycle engine using liquefied natural gas as a fuel and operating according to an Otto cycle; a high-pressure pump for compressing liquefied natural gas which has been discharged from a storage tank; a gasifier for gasifying the liquefied natural gas which has been compressed by the high-pressure pump; an expansion valve for expanding the natural gas which has been gasified by the gasifier; and a gas-liquid separator for separating gas and liquid from a gas-liquid mixture formed by the expansion valve, wherein the liquid separated in the gas-liquid separator is recovered into a storage tank, the gas separated in the gas-liquid separator is supplied as a fuel for the Otto cycle engine, thereby adjusting the methane number of a natural gas fuel supplied to the Otto cycle engine.

Description

technical field [0001] The present invention relates to a system and method for supplying fuel in a LNG fueled ship including a LNG fueled engine capable of supplying LNG corresponding to fuel supply conditions because the engine is not in use In the case of a compressor (compressor) a pump and a regasification device are used. Background technique [0002] Generally, ships generate propulsion by driving engines that generate power by burning fuel. Fuel oil for ships, such as diesel oil, heavy oil, Marine Diesel Oil (MDO), and the like, causes environmental pollution by generating a large amount of toxic substances during combustion. With the recent strengthening of worldwide laws and regulations for the prevention of atmospheric environmental pollution, there is a tendency that the fuel used for ships is changed from fuel oil to natural gas. Natural gas is relatively eco-friendly due to its low sulfur content, which produces sulfur-containing compounds and soot substances...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63H21/38B63B25/16B63H21/14F02M25/08F02M21/02F17C6/00F17C9/02
CPCB63B25/16B63H21/14B63H21/38F02M21/02F02M25/08F17C6/00F17C9/02Y02T10/30F02M21/0215F02M21/0218F17C2265/066F17C2270/0105
Inventor 南棅晫李源讚郑仁敦
Owner DAEWOO SHIPBUILDING & MARINE ENG CO LTD
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