LNG fuel gas supply system and ship

A technology of gas supply system and fuel, which is applied in the direction of charging system, oil supply device, combustion engine, etc., and can solve the problems of energy consumption and large space

Pending Publication Date: 2021-02-26
CIMC SHIP OCEAN ENG DESIGN & RES INST +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Using these two methods, the operation of peripheral processing equipment such as compressors or reliquefaction devices consumes energy, and at the

Method used

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  • LNG fuel gas supply system and ship
  • LNG fuel gas supply system and ship
  • LNG fuel gas supply system and ship

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Embodiment Construction

[0035] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention is capable of various changes in different embodiments without departing from the scope of the present invention, and that the description and illustrations therein are illustrative in nature and not limiting. this invention.

[0036] In order to further illustrate the principle and structure of the present invention, preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0037] The invention provides an LNG fuel gas supply system, which can be used to supply natural gas fuel to ships' engines. Wherein, the engine of the ship can be a single-fuel engine that only uses natural gas as fuel, or a dual-fuel engine that uses natural gas and diesel as fuel.

[0038] refer to Figure 1 to Figure 6 , This embodimen...

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Abstract

The invention relates to a ship and an LNG fuel gas supply system. The ship comprises a ship body, an engine and the LNG fuel gas supply system; the LNG fuel gas supply system comprises a liquid storage tank, a pressure pump, a gas storage tank and a gasification mechanism, the liquid storage tank is provided with a gas pipe and a liquid pipe, and an inlet of the gas storage tank communicates withthe gas pipe of the liquid storage tank; and a liquid inlet, a liquid discharging outlet and an exhaust port are formed in the pressure pump, the liquid inlet communicates with the liquid pipe of theliquid storage tank, and the exhaust port communicates with the gas pipe of the liquid storage tank and the inlet of the gas storage tank so as to selectively convey BOG in the pressure pump into theliquid storage tank or the gas storage tank. The liquid storage tank, the gas storage tank and the pressure pump are utilized to form a closed space with a fixed volume, the BOG is continuously increased in the closed space, the BOG is self-compressed by utilizing pressure between the BOG gas, peripheral pressure equipment does not need to be added, and the BOG can also obtain pressure required by combustion.

Description

technical field [0001] The invention relates to the technical field of ships, in particular to an LNG fuel gas supply system and a ship. Background technique [0002] Liquefied natural gas (LNG) is a high-quality clean energy. Its main component is methane, which has high combustion calorific value and slight environmental pollution. With the increasing call for improving environmental quality, LNG has been paid more and more attention by people. At present, LNG has been widely used as industrial fuel, civil fuel, ship and automobile fuel, and fuel for power generation. Due to the intrusion of the LNG liquid storage tank by the heat of the external environment, or the process of LNG being transported by the pressure pump, part of the mechanical energy of the pressure pump is converted into heat energy, which will cause the LNG to gasify and generate flash gas, which is BOG gas. If these BOG are directly discharged into the atmosphere, it will not only waste precious resourc...

Claims

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Application Information

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IPC IPC(8): F02M21/02
CPCF02M21/0215F02M21/0218F02M21/0221F02M21/0224F02M21/0245F02M21/0287Y02T10/30
Inventor 金贤李慧霖黄博张春涛左文安
Owner CIMC SHIP OCEAN ENG DESIGN & RES INST
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