a dual fuel ship

Abstract

The invention discloses a dual-fuel ship, which includes a hull, a dual-fuel supply device arranged on the hull, and marine equipment. The dual-fuel supply device includes a diesel tank, a light hydrocarbon fuel tank, a mixed fuel tank, and a three-way regulating valve. The first oil outlet A1 of the diesel tank is connected to the first inlet a of the three-way regulating valve, the outlet of the light hydrocarbon fuel tank is connected to the second inlet b of the three-way regulating valve, and the outlet of the three-way regulating valve c is connected to the oil inlet D of the mixed fuel tank; the oil outlet E of the mixed fuel tank is connected to the oil inlet G of the marine equipment, and the oil return port H of the marine equipment is connected to the oil return port of the mixed fuel tank F is connected; the second oil outlet A2 of the diesel tank is also connected with the oil inlet G of the marine equipment, and the oil return port H of the marine equipment is connected with the oil return port B of the diesel tank. The dual-fuel ship of the present invention can use the mixed fuel of liquid light hydrocarbon and diesel oil or pure diesel oil as fuel according to the sailing state of the ship, which is more economical and environment-friendly.

Description

technical field [0001] The invention relates to the technical field of ships, in particular to a dual-fuel ship. Background technique [0002] At present, most ships use pure diesel engines, and pure diesel engines have relatively high fuel consumption, relatively high operating costs, and high pollutant content in exhaust emissions, especially containing a large amount of sulfide, carbon particles and other dust impurities, etc. , These pollutants have great harm to the environment and human body. As a new clean fuel, light hydrocarbon is a by-product of petrochemical enterprises, and it is a new type of liquid fuel that is safe, efficient, energy-saving, economical and less polluting. Light hydrocarbons can be burned and have a higher calorific value than natural gas and liquefied petroleum gas. The application of light hydrocarbons as alternative fuels in engines will have a good development prospect. Compared with the application of pure diesel oil on ships, the use o...

AI Technical Summary

Problems solved by technology

Compared with the application of pure diesel oil on ships, the use of light hydrocarbon fuels can reach the level of NO in ship engine exhaust. x , SO x , soot and other pollutants are reduced by 80%, protecting the marine environment and promoting the development of green ships. The application of light hydrocarbon fuels on ships has broad market prospects and good environmental protection advantages, but there is still a lack of relevant technical solutions to make light hydrocarbons Fuel application on ships

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