Dual-fuel nozzle for plasma and gas-assisted atomization burning

Abstract

The invention provides a dual-fuel nozzle for plasma and gas-assisted atomization burning. The dual-fuel nozzle for plasma and gas-assisted atomization burning comprises a gas circuit assembly, a plasma discharging assembly, an oil filtering assembly and a gas-assisted swirl nozzle assembly. Liquid fuel passes through the oil filtering assembly and then enters an annular discharging gap of the plasma discharging assembly in the radial direction, the fuel is partially cracked through dielectric barrier discharging to form a plasma micelle which is mixed into the fuel, and instant bursting and inflammability of the plasma micelle at an outlet of the dual-fuel nozzle are utilized for strengthening atomization; one part of gaseous fuel enters the gas-assisted swirl nozzle assembly from an inlet through an annular gas cavity surrounding an external electrode so as to conduct impact assisted atomization on the liquid fuel, and the other part of the gaseous fuel flows out in a rotating mode through a gas flow guiding plate so as to achieve the shearing action on the liquid fuel, so that liquid drops are atomized deeply. According to the dual-fuel nozzle for plasma and gas-assisted atomization burning, deep fuel atomization and stable flow rotation can be well achieved, stability and completeness of burning are improved, and pollutant emission is reduced.

Description

technical field [0001] The invention relates to a gas turbine, in particular to a nozzle mechanism of the gas turbine. Background technique [0002] 1. Dielectric barrier discharge technology: Dielectric barrier discharge technology is a kind of low-temperature plasma catalysis. It is currently mainly used in technical fields such as ozone production, waste gas treatment, material surface modification, and gaseous pollutant treatment. Low temperature plasma catalysis is an extremely effective way to realize low energy consumption, high yield and high selectivity in plasma chemical reaction process. Dielectric barrier discharge technology is mostly used in the research and treatment of gaseous substances, but less research is done on the catalysis of liquid substances. [0003] 2. Dual-fuel gas turbine technology: Gas turbine is a typical conventional fuel power plant. It has the characteristics of small size, high power, light weight and fast start-up, and is widely used i...

AI Technical Summary

Problems solved by technology

[0004] The traditional dual-fuel nozzle has poor atomization effect of the liquid fuel in the oil circuit after passing through the nozzle, and poor swirling effect of the gaseous fuel in the gas path through the nozzle, which leads to incomplete combustion of the fuel, elongated flame, low combustion efficiency, and low combustion efficiency. walls and large amounts of unburned hydrocarbons, causing serious pollution problems

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