Plasma catalysis ignition integrated nozzle

A catalytic ignition and plasma technology, applied in combustion methods, combustion chambers, combustion equipment, etc., can solve problems such as complex reaction processes, achieve the effects of reducing activation energy, preventing carbon deposition in nozzles, and avoiding arc discharge at the end

Inactive Publication Date: 2013-03-20
三亚哈尔滨工程大学南海创新发展基地
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  • Application Information

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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

Method used

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  • Plasma catalysis ignition integrated nozzle

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Embodiment Construction

[0021] The present invention will be described in more detail below with examples in conjunction with the accompanying drawings.

[0022] The structural composition of the plasma catalytic ignition integrated nozzle of the present invention includes a catalytic nut, a catalytic ceramic 2, a gasket, a catalytic cathode 4, a fuel filter 5, a housing 6, an ignition power connector nut 7, an ignition ceramic 8, a gasket 9, Compression ring 10, ignition cathode 11, anode 12, upper cover 13, base 14, compression cover 15, spring 16, swirl cover 17 and swirl piece 18.

[0023] The ignition cathode 11, the anode 12 outside the ignition cathode, the ignition ceramic 8 between the ignition cathode and the anode, and the high-energy plasma ignition assembly composed of the ignition power connector nut 7. A compression ring 10 is arranged between the anode and the ignition ceramic, a certain gap is formed between the anode and the ignition ceramic, and a gasket 9 is arranged at the contac...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23R3/38
Inventor 刘潇郑洪涛杨仁李雅军
Owner 三亚哈尔滨工程大学南海创新发展基地
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