Combined cooling type rectification support plate flame stabilizer

A technology of flame stabilizer and rectifier support plate, which is applied in the combustion method, combustion chamber, combustion equipment and other directions, can solve the problems of the adverse effect of the working life of the rectifier support plate flame stabilizer, the change of flame stability performance, etc., and achieve combustion stability. , prolong the service life, avoid the effect of coking blockage

Pending Publication Date: 2017-09-22
NORTHWESTERN POLYTECHNICAL UNIV
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Problems solved by technology

At the same time, the air flow of the integrated afterburner comes from the high-temperature gas of the main combustion chamber, which leads to a significant change in the flame stability performance. After the atomized fuel sprayed from the nozzle evaporates rapidly under high temperature conditions, it enters under the stabilizer with the a

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  • Combined cooling type rectification support plate flame stabilizer
  • Combined cooling type rectification support plate flame stabilizer

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[0020] The present invention will now be further described in conjunction with the drawings:

[0021] Combine figure 1 , figure 2 , The present invention provides a new type of flame thermostat that can cool and protect the rectifying support plate under high-temperature gas, and improve its working stability. At the same time, by changing the cooling structure of the film hole, adjusting the pressure difference, and the amount of cold air, the active control of the intensity of the combustion zone and the combustion stability is realized.

[0022] Such as figure 2 The high temperature fuel gas shown in the content enters the integrated afterburner through the outside of the 3-afterburner inner cone. The airflow at the inlet of the afterburner has a high temperature and is turbulent after the turbine blades are disturbed. The high-temperature gas is rectified by the flame stabilizer of the 4-rectification branch plate and then organized and burned behind it. It can be seen tha...

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Abstract

The invention provides a combined cooling type rectification support plate flame stabilizer. According to the combined cooling type rectification support plate flame stabilizer, design of impacting and cooling array size and distribution, design of air film cooling hole size and distribution, design of oil spraying hole size and distribution and design of oil passages in the rectification support plate flame stabilizer and a jetting form are involved. According to the combined cooling type rectification support plate flame stabilizer, a cool air cavity is formed in an ordinary rectification support plate flame stabilizer, and through arrangement of an impacting array and air film cooling holes, the wall temperature of the rectification support plate flame stabilizer is controlled; and an oil spray pipe is subjected to cooling protection to a certain extent, coking blocking caused due to overheating of the oil spray pipe is avoided, the work reliability of the rectification support plate flame stabilizer is improved, and the service life of the rectification support plate flame stabilizer is prolonged.

Description

technical field [0001] The invention belongs to the field of an integrated afterburner, and in particular relates to a combined cooling rectifying support plate flame stabilizer. Background technique [0002] For military aircraft, in order to increase its thrust-to-weight ratio and increase thrust with little increase in weight, afterburner technology is generally used in the world at present. The integrated afterburner developed on the basis of this technology has attracted much attention for its performance advantages of widening the flight envelope, achieving conventional take-off and landing, and reusability. It is also the most widely used hypersonic aircraft power plant for military aircraft at this stage. In order to achieve a greater thrust-to-weight ratio in modern advanced turbofan engines, the temperature rise of the main combustion chamber is large, the temperature of the gas in front of the turbine is significantly increased, the gas flow rate is large, and the...

Claims

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Application Information

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IPC IPC(8): F23R3/20
CPCF23R3/20
Inventor 张群寇睿李承钰宋亚恒张鹏王鑫黎超超李逸飞
Owner NORTHWESTERN POLYTECHNICAL UNIV
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