Fuel supply system of single ammonia fuel marine diesel engine

Abstract

The invention aims to provide a fuel supply system of a single ammonia fuel marine diesel engine.An ammonia storage tank, a gasification tank and a filtering cavity are sequentially connected, an outlet of the filtering cavity is connected with an ammonia gas pipeline and a hydrogen gas pipeline, and an ammonia gas pressurizing tank and an ammonia gas high-pressure common rail pipe are installed on the ammonia gas pipeline at a time. The ammonia gas high-pressure common rail pipe is connected with an engine through an ammonia gas electronic injection valve, an ammonia decomposition furnace, a hydrogen pressurizing tank, a middle hydrogen storage tank and a hydrogen gas high-pressure common rail pipe are sequentially mounted on the hydrogen gas pipeline, the middle hydrogen storage tank is connected with the hydrogen gas high-pressure common rail pipe through an electromagnetic flow valve, and the hydrogen gas high-pressure common rail pipe is connected with the engine through a hydrogen gas electronic injection valve. The fuel filling requirement of the marine diesel engine can be met only by filling the ammonia fuel, and a large amount of hydrogen fuel does not need to be stored, so that the safety of a ship is guaranteed, the cost of equipment required for hydrogen storage and transportation is saved, and the ammonia fuel has higher volume energy density than the hydrogen fuel and is easier to liquefy and store, and the storage space of fuel oil on the ship can be reduced.

Description

technical field [0001] The invention relates to a fuel supply system, in particular to a ship engine fuel supply system. Background technique [0002] At present, in marine diesel engines, the use of green and environmentally friendly ammonia fuel often requires the addition of additional combustion improvers to ensure the complete combustion of ammonia to obtain better power output. There are two common combustion aids: hydrogen fuel and high activity fuel. Among them, high-activity fuels often refer to diesel, heptane, dimethyl ether, etc., which are all carbon-containing fuels, and their combustion will produce carbon dioxide, a greenhouse gas. In the face of increasingly stringent requirements for energy conservation and emission reduction, as well as the aggravation of the greenhouse effect, the complementary combustion of ammonia fuel and hydrogen fuel is the best choice. However, in the current ammonia fuel engine fuel supply system, it is necessary to design and in...

AI Technical Summary

Problems solved by technology

In addition, hydrogen fuel is flammable, explosive, and difficult to store and transport, and it is easy to cause safety hazards when stored and transported in large quantities on ships

Images