Micro combustion chamber punching type evaporation pipe

Abstract

The invention provides a micro combustion chamber punching type evaporation pipe. The micro combustion chamber punching type evaporation pipe can effectively improve fuel oil atomization and evaporation effects; through punching in the wall surface, flow perturbation in the micro combustion chamber punching type evaporation pipe is strengthen obviously, mixing of oil and gas is strengthened, and the fuel oil atomization effect is improved. Secondly, the improvement of the atomization effect of fuel oil liquid drop can generate favorable influence on the evaporation effect the fuel oil liquid drop; the particle size of the fuel oil liquid drop is reduced, and an evaporation rate can be increased, so that the evaporation of the fuel oil liquid drop is strengthened. Holes are distributed densely at a place close to an inlet of the micro combustion chamber punching type evaporation pipe, and are distributed sparsely at a place close to an outlet of the micro combustion chamber punching type evaporation pipe, in this way, the atomization and evaporation effects of at the front end of the micro combustion chamber punching type evaporation pipe are ensured, and the collision merging probability of the fuel oil liquid drop at the rear end of the micro combustion chamber punching type evaporation pipe is reduced.

Description

technical field [0001] The invention belongs to the field of gas turbine engines, and in particular relates to a micro-combustion chamber perforated evaporation tube that can effectively strengthen airflow disturbance and effectively improve the atomization and evaporation effect of fuel droplets in a combustion chamber. Background technique [0002] With the development of science and technology, some equipment and devices tend to be miniaturized, and aircraft is one of them. It is foreseeable that all kinds of unmanned aerial vehicles, target drones, cruise missiles and other types of micro-aircraft will inevitably play an extremely important role in modern warfare due to their simple structure and low cost. Compared with conventional aircraft, MAVs also have outstanding features such as small size, good concealment, light weight, easy portability, and simple operation. In addition to the above military applications, MAVs have also shown extremely broad application prospe...

AI Technical Summary

Problems solved by technology

But at the same time, the atomization and evaporation effect of the evaporator tube is relatively poor, especially when the air pressure is low and the temperature is not high at the start state, the fuel in the evaporator tube cannot be well atomized, resulting in difficulty in engine ignition

[0005] Modern micro-engine combustion chambers generally have strict requirements on the atomization and evaporation effect of fuel in the evaporation tube, but the traditional evaporation tube structure is difficult to meet the requirements of modern micro-engine combustion chambers on the atomization and evaporation effect of fuel due to factors such as poor atomization and evaporation effects. Requirements, and the perforated evaporator tube of the micro-combustor solves this problem well. In addition, the perforated evaporator tube of the micro-combustor will also improve the starting condition of the engine because it strengthens the disturbance of the airflow, so with broadly application foreground

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