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An integrated afterburner with adjustable preheating rectifying struts

A technology of afterburner and rectifier support plate, applied in the direction of combustion chamber, continuous combustion chamber, combustion method, etc., can solve the problems of reducing fluid loss afterburning chamber, low combustion efficiency, etc., to improve combustion efficiency, improve mixing Mixing degree, the effect of enhancing the degree of mixing

Active Publication Date: 2020-12-08
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Adopting this scheme will greatly reduce fluid loss, reduce the length of the afterburner, and reduce the mass, but it still does not solve the problem of low combustion efficiency

Method used

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  • An integrated afterburner with adjustable preheating rectifying struts
  • An integrated afterburner with adjustable preheating rectifying struts
  • An integrated afterburner with adjustable preheating rectifying struts

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Embodiment Construction

[0017] The present invention will be further described now in conjunction with accompanying drawing:

[0018] combine figure 1 , figure 2 , image 3 , the present invention provides an integrated afterburner adopting adjustable preheating rectifying struts. figure 1 is an overall diagram of an integrated afterburner with adjustable preheating rectifier struts, figure 2 is a front view of an integrated afterburner with adjustable preheated struts, image 3 Schematic diagram of the rectifying strut flame holder.

[0019] The airflow from the inner and outer ducts passes through figure 1 (4) The sliding baffle-type rear duct ejector shown in (4) is in the figure 1 (3) mixed between the rectifying plate flame holders, figure 1 (3) The rectifying support plate flame stabilizers are evenly arranged along the circumference, and its surface is like image 3 (1) The air intake hole shown in (1), the fuel enters through the oil supply pipe figure 1 (3) Inside the rectifying s...

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Abstract

The invention provides an integrated afterburner adopting adjustable preheating struts. Strut flame stabilizers are connected with a central cone body through adjustable bolts, and the deflection angle of each strut flame stabilizer can be adjusted in real time according to actual work conditions. High-temperature mixed gas enters the struts from small intake holes formed in the two side surfacesof each strut flame stabilizer, fuel oil in a fuel oil channel is heated, and then the high-temperature mixed gas is sprayed out towards the center from small spray holes formed in the middle portionof a V-shaped groove of each strut flame stabilizer. After being heated, the fuel oil is sprayed out by direct injection type spray nozzles on the two sides of V-shaped grooves of the strut flame stabilizers, and after being further heated, the fuel oil burns in a low-speed backflow area on the back side. Since being heated, the fuel oil has good atomization and evaporation effects, the oil-gas mixing time in the low-speed area is long, and the oil-gas mixing effect is good, ignition and stable communication can be achieved under the condition of a small oil-gas ratio; and the adjustable strutflame stabilizers can be suitable for work states in larger range, and the performance of an engine is improved.

Description

technical field [0001] The invention belongs to the field of gas turbine engines, and in particular relates to an integrated afterburner using an adjustable preheating rectifying strut. Background technique [0002] The afterburner is one of the additional devices of the jet engine, which is commonly found in military aircraft. The principle is to inject fuel into the airflow from the engine. Due to the high temperature of the airflow, the fuel burns in real time and expands to generate additional thrust. Generally speaking, the higher the temperature in front of the turbine of a jet engine, the greater the thrust of the engine. Generally, the temperature before the turbine can only reach about 1650K. However, this still cannot meet the thrust requirements of military engines, so an afterburner is added after the turbine to reburn to increase thrust. There are no rotating parts in the afterburner, so the temperature can reach about 2000K, which can increase the thrust of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23R3/18
CPCF23R3/18
Inventor 张群李小龙胡凡程祥旺刘强曹婷婷李程镐杨福正张鹏海涵王鑫
Owner NORTHWESTERN POLYTECHNICAL UNIV
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