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On-duty flame stabilizer

A flame stabilizer and stabilizer technology, applied in the direction of combustion methods, lighting and heating equipment, continuous combustion chambers, etc., can solve problems such as oscillating combustion, unstable flame, and difficulty in engine ignition, so as to improve and reduce resistance, Improved spatial distribution, improved evaporation and oil-gas blending effects

Inactive Publication Date: 2012-06-27
PEKING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] The technical problem solved by the present invention is to solve the problems of difficult ignition of the engine, unstable flame, accompanied by oscillating combustion, etc.

Method used

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Effect test

Embodiment 1

[0029] An on-duty flame stabilizer, comprising an atomization tank 1, an oil injection rod 2, an evaporation tube 3, a stabilizer side wall 4, and an air injection hole 7.

[0030] Atomization tank 1, fuel injection rod 2, and evaporation tube 3 are welded by thin steel sheets and installed on the head of the stabilizer; the top of atomization tank 1 is flush with the top of evaporation tube 3, and a certain distance downstream of atomization tank 1 is the fuel injection rod 2. Placed in the evaporation tube 3, the upstream of the spray rod 2 is the atomization tank 1, which is placed at the bottom of the evaporation tube 3; the evaporation tube 3 and the stabilizer side wall 4 are welded by thin steel sheets, and the outside of the evaporation tube 3 is the stable Device side wall 4.

[0031]In the present invention, the atomization tank 1, fuel injection rod 2, and evaporation tube 3 are welded with thin steel sheets to ensure that the distance between the two sides of the a...

Embodiment 2

[0033] An on-duty flame stabilizer, comprising an atomization tank 1, an oil injection rod 2, an evaporation tube 3, a stabilizer side wall 4, and an air injection hole 7.

[0034] Atomization tank 1, fuel injection rod 2, and evaporation tube 3 are welded by thin steel sheets and installed on the head of the stabilizer; the top of atomization tank 1 is flush with the top of evaporation tube 3, and a certain distance downstream of atomization tank 1 is the fuel injection rod 2. Placed in the evaporation tube 3, the upstream of the spray rod 2 is the atomization tank 1, which is placed at the bottom of the evaporation tube 3; the flange of the evaporation tube 3 and the side wall of the stabilizer 4 is welded, and the outside of the evaporation tube 3 is the stabilizer side wall 4.

[0035] In the present invention, the atomization tank 1, fuel injection rod 2, and evaporation tube 3 are welded with thin steel sheets to ensure that the distance between the two sides of the atom...

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Abstract

The invention discloses an on-duty flame stabilizer, which comprises an atomization slot, an oil injection rod, an evaporation tube, a stabilizer side wall and air injection holes, wherein the atomization slot is a slot-shaped structural part with certain wall thickness and is arranged in the evaporation tube, a slot mouth points downstream, and the oil injection rod is at downstream position; the oil injection rod is provided with a plurality of oil injection holes and is arranged in the evaporation tube; the evaporation tube is a slot-shaped structural part with the air injection holes at both sides and certain wall thickness, and the outer side of the evaporation tube is provided with a stabilizer side wall; the stabilizer side wall is a two-side plat plate type structural part with certain wall thickness, and two flat plates have a certain flare angle downstream; a gap is left between the atomization slot and the evaporation tube, and the gap is flush at the head part of the stabilizer; a gap is left between the evaporation tube and the stabilizer side wall, and the gap is flush at the head part of the stabilizer; the air injection holes are positioned at both sides of the evaporation tube close to the bottom; and the on-duty flame stabilizer can be used in an aircraft engine and a stamping engine to improve the ignition performance, the flame stability and the combustion efficiency.

Description

technical field [0001] The invention relates to the field of aerodynamic propulsion systems, in particular to an on-duty flame stabilizer. Background technique [0002] The flame stabilizer is the core component of the afterburner of the aero-engine and the combustion chamber of the ramjet engine. Its structure and layout determine the ignition, flame stability and combustion efficiency of the combustion chamber. Improving the combustion performance of the stabilizer is to improve the performance of the afterburner, thereby improving the overall performance of the engine. With the development of modern aero-engine afterburner technology, higher requirements are put forward for the flame stabilizer. Especially in the case of low temperature, low pressure and high speed at the inlet airflow of the combustion chamber, the ignition reliability of the existing flame stabilizer becomes worse, the stable working range becomes narrower, and the combustion efficiency is not high. Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23R3/20
Inventor 郑殿峰
Owner PEKING UNIV
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