Methanol and hydrogen dual-fuel power system

Abstract

The invention discloses a methanol and hydrogen dual-fuel power system. The thermal efficiency of gasoline and diesel engines is only 20-45%, and waste heat of tail gas is discharged into the atmosphere and is not effectively utilized, so that energy waste is caused. The methanol and hydrogen dual-fuel power system comprises an engine (20), a hydrogen production device (5), a methanol box (1) anda cold start electric heating hydrogen production device (8), and the methanol box communicates with a methanol injection rail (16) on an engine intake manifold, a methanol inlet of the cold start electric heating hydrogen production device and a methanol inlet pipe of the hydrogen production device through pipelines; and the methanol inlet pipe of the hydrogen production device is connected to the hydrogen production device of an engine exhaust pipe (22), one end of a gas outlet pipeline of the cold start electric heating hydrogen production device communicates with a gas inlet of the hydrogen production device through an electromagnetic three-way one-way valve (9), the other end of the gas outlet pipeline communicates with a gas cooling and gas-liquid separating device (10), and a methanol outlet of the gas cooling and gas-liquid separating device communicates with the methanol box through a pipeline. The invention is used for the methanol and hydrogen dual-fuel power system.

Description

Technical field: [0001] The invention relates to a dual-fuel power system of methanol and hydrogen. Background technique: [0002] With the development of social economy, the number of automobiles is increasing year by year, and the energy consumption of automobiles accounts for a higher and higher proportion of the world's energy consumption. The contradiction between energy supply and demand has become increasingly prominent, and has caused serious environmental pollution problems. One of the topics of concern. Therefore, the development of new energy and clean fuel power systems is of great significance to alleviating the world energy crisis and reducing environmental pollution. Methanol and hydrogen fuels come from a wide range of sources, for example: coal to produce methanol, natural gas to produce methanol, carbon dioxide to produce methanol, etc.; electrolysis of water to produce hydrogen, methanol cracking or reforming to produce hydrogen, coke oven gas to extract ...

AI Technical Summary

Problems solved by technology

[0006] The ignition range of gasoline fuel is relatively narrow, and it is difficult to achieve lean combustion conditions, which is not conducive to improving engine emission levels and reducing fuel consumption. The latent heat of vaporization of methanol fuel is relatively high, so methanol single-fuel engines are difficult to start cold, and the application in cold regions in winter is limited.

Images