Plasma catalysis ignition integrated nozzle

Abstract

The invention provides a plasma catalysis ignition integrated nozzle which is a plasma assisted atomization and plasma ignition integrated nozzle formed by a low-temperature plasma discharge assembly, a fuel pressure atomization nozzle assembly and a high-energy plasma ignition assembly. A barrier medium uniformly discharges to ensure that a liquid fuel partially pyrolyzes to generate a large quantity of gas activated components, so that a gas-liquid coexisting plasma microcell is formed, fuel activation energy and ignition energy are reduced, physical conditions of gas assisted atomization are formed, and atomization effect is improved. A plasma ignitor is arranged on the middle of a multi-point nozzle and is positioned in a combustion chamber low-pressure region, plasma and fuel atomized particles are well mixed to generate a chemical reaction, and a stable high-temperature ignition core is easily formed. Ignition is directly carried out by adopting a plasma jet, and because the plasma jet has special discharge characteristics and larger discharge energy and is highly concentrated in energy, the ignition reliability and the ignition concentration limit of a gas turbine are greatly improved. The plasma catalysis ignition integrated nozzle can be applied to a combustion chamber of the gas turbine.

Description

technical field [0001] The invention relates to a nozzle applicable to a combustion chamber of a gas turbine. Background technique [0002] As a new type of ignition technology, plasma ignition technology is being widely used in aviation industry, shipbuilding industry, power generation, oil and gas transmission and many other industries. As a new type of ignition equipment for modern gas turbines, the plasma igniter has unique discharge characteristics, large discharge energy, concentrated energy, and can increase the ignition reliability and ignition concentration limit of the engine. When the plasma igniter is injected with fuel and high-temperature air plasma flow, heat transfer, mass transfer and a series of complex and violent physical and chemical reactions occur in a fuel-rich state, which includes high-temperature cracking and recombination of gas and fuel, including Complex intermediate process, and the rate of each reaction is not the same, so the reaction proces...

AI Technical Summary

Problems solved by technology

When the plasma igniter is injected with fuel and high-temperature air plasma flow, heat transfer, mass transfer and a series of complex and violent physical and chemical reactions occur in a fuel-rich state, which includes high-temperature cracking and recombination of gas and fuel, including Complex intermediate process, and the rate of each reaction is not the same, so the reaction process is quite complicated

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