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Marine diesel engine ammonia fuel supply system

A technology for fuel supply system and marine diesel engine, which is applied in the fuel oil system, charging system, gaseous engine fuel, etc., can solve the problems of not being able to be used as an ammonia fuel supply system, ammonia safety, difficult engine combustion, etc., and reduce pollutant emissions. , the effect of reducing carbon emissions and easy liquefaction storage

Inactive Publication Date: 2021-04-09
HARBIN ENG UNIV
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Problems solved by technology

Although the current new type of ship adopts a dual fuel supply system, the fuel burned in the engine cylinder is not a mixture of the two fuels, but different fuels are used in different navigation areas
For example, light oil can be provided for engine combustion at offshore ports, but such a dual fuel supply system cannot be used as an ammonia fuel supply system
In addition, in the traditional fuel supply pipeline, the ammonia gas is directly sent to the engine, not only is it difficult to burn in the engine, but also the leakage of ammonia will cause serious safety problems

Method used

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  • Marine diesel engine ammonia fuel supply system
  • Marine diesel engine ammonia fuel supply system

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Embodiment Construction

[0015] The present invention is described in more detail below in conjunction with accompanying drawing example:

[0016] combine Figure 1-2 , The ammonia supply system provides clean ammonia to the engine. Ammonia is a poisonous gas with a pungent smell, and it is necessary to take special precautions against the leakage of ammonia. A special ammonia transmission pipeline is adopted in the present invention. The ammonia gas transmission pipeline is composed of double-layer pipelines, the inner pipeline is the ammonia gas transmission pipeline, and the outer pipeline is a shielded tube, and the air is changed every 2-5 minutes on average. An ammonia leak probe and an ammonia leak indicator are installed downstream of the shielding tube to determine whether the inner wall pipeline is damaged.

[0017] The highly active fuel supply system provides combustion conditions for the combustion of ammonia fuel in the engine, and can supply fuels such as natural gas, gasoline, diesel...

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Abstract

The invention aims to provide a marine diesel engine ammonia fuel supply system. The marine diesel engine ammonia fuel supply system comprises a diesel engine, an ammonia storage tank and an oil tank, wherein the ammonia storage tank is sequentially connected to a vaporization tank, a filter cavity, a pressurizing tank and an ammonia high-pressure common rail pipeline through an ammonia transmission pipeline, the ammonia high-pressure common rail pipeline is connected to the diesel engine through an ammonia injection valve, the oil tank is connected to a diesel oil high-pressure common rail pipe, and the diesel high-pressure common-rail pipe is connected to a diesel engine through a diesel atomizer. According to the marine diesel engine ammonia fuel supply system, ammonia can be used as fuel for the engine to burn, environmental problems such as emission pollution and the like are reduced, the ammonia is coupled with high-activity fuel for blending combustion, so that the combustion characteristic of the ammonia can be effectively improved, the external output power is increased, in addition, vaporization heat absorption of the ammonia can be applied to a refrigerating system of a steamship, and the utilization efficiency of energy on the steamship is improved.

Description

technical field [0001] The invention relates to a diesel engine, in particular to a fuel supply device for a diesel engine. Background technique [0002] Currently, the burning of fossil fuels causes many environmental problems. In addition, the limited reserves of fossil resources also determine the need to find an alternative fuel. In marine engines, the fuel of petroleum products is mainly used at this stage, which not only emits a large amount of greenhouse gases and harmful gases, but also has certain dangers in storing fuels, such as flammable and explosive. In recent years, the International Maritime Organization has promulgated more stringent regulations on energy conservation and emission reduction, and the voice of clean and green fuel has gradually come into people's field of vision. [0003] Many clean fuels, such as ethanol, dimethyl ether, biodiesel and hydrogen, have been fully theoretically researched and experimentally verified in engines. At present, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M21/02F02M21/06F02B69/04
CPCF02M21/0206F02M21/0218F02M21/0293F02M21/06F02B69/04Y02T10/30F02D19/0644F02D19/0623F02B43/10F02M55/00F02M43/00
Inventor 王洋周小虎刘龙
Owner HARBIN ENG UNIV
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