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Evaporating pipe atomization device and combustion chamber

An atomization device and evaporation tube technology, which is applied in the field of aero-engines, can solve the problems of high processing cost of evaporation tubes or nozzles, easy ablation of evaporation tubes or flame tubes, and too much fuel in a single evaporation tube, so as to improve evaporation effect, The effect of improving combustion effect and combustion uniformity, and improving fuel evaporation efficiency

Active Publication Date: 2022-03-01
AECC HUNAN AVIATION POWERPLANT RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still problems such as high processing cost of evaporator tube or nozzle, easy ablation of evaporator tube or flame tube, uneven distribution of fuel in the main combustion area, too much fuel in a single evaporator tube, poor atomization and evaporation effect, etc.

Method used

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  • Evaporating pipe atomization device and combustion chamber
  • Evaporating pipe atomization device and combustion chamber
  • Evaporating pipe atomization device and combustion chamber

Examples

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Embodiment Construction

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0043] In the existing technology such as figure 1As shown, it is a typical return combustion chamber and a small and medium-sized turbofan engine using a T-shaped evaporating tube as a fuel atomization device. The aero-engine consists of a fan 1, a compressor 2, a combustion chamber 3 and a turbine 4. Specifically, the combustion chamber 3 includes an evaporator tube fuel atomization evaporator 30 and a return flame tube 33 assembly. After the fuel is spray...

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PUM

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Abstract

According to the technical scheme, the evaporation pipe atomization device is characterized by comprising an evaporation pipe, the evaporation pipe comprises a single inlet and two or more outlets, the bottom of the evaporation pipe is provided with a rolling-ball-shaped cavity, and the diameter of the rolling-ball-shaped cavity is the same as the inner diameter of the inlet of the evaporation pipe. The problems that in a small and medium-sized aero-engine evaporation pipe combustion chamber, fuel oil in an evaporation pipe is insufficiently heated, the atomization effect is poor, the fuel oil liquid drop evaporation rate is low, the combustion efficiency is low, fuel oil steam and air are insufficiently mixed, partitioned combustion is difficult to achieve, and the outlet temperature field adjusting difficulty is high are solved.

Description

technical field [0001] The invention belongs to the technical field of aero-engines, and in particular relates to an evaporation tube atomization device and a combustion chamber. Background technique [0002] High-performance small and medium-sized aeroengines have the advantages of small size, light weight, and high thrust-to-weight ratio. They have high practical and economic value in small and medium-sized unmanned aerial vehicles, carrier-based aircraft, target drones, and small civil power and power generation devices. Compared with large aeroengines and gas turbines, small and medium aeroengines have lower requirements on the engine's pollution emission performance, but higher requirements on the engine's economy. In order to save the manufacturing cost of the engine and improve the cost performance, some small and medium-sized aeroengines have adopted the evaporator tube type fuel atomization and evaporation device. The high-temperature gas in the flame tube heats th...

Claims

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Application Information

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IPC IPC(8): F23R3/32F23R3/52
CPCF23R3/32F23R3/52
Inventor 江立军王良王利谢金贤陈翔王倚阳陈盛
Owner AECC HUNAN AVIATION POWERPLANT RES INST
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