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Automatic ignition and temperature control method for aviation kerosene and gas generator

一种燃气发生器、航空煤油的技术，应用在控制燃烧、照明和加热设备等方向，能够解决影响温度控制精度、不能准确控制油/气比、不能实现连续自动控制等问题，达到方便自动、高参数控制精度的效果

Active Publication Date: 2014-02-26
BEIHANG UNIV
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] For this reason, at present, the existing aviation kerosene gas generating equipment in my country often has ignition problems, and most of them manually adjust the fuel flow according to the temperature requirements of the outlet gas flow, which can neither realize continuous automatic control nor accurately control the oil / gas ratio, which seriously affects Temperature Control Accuracy

Method used

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  • Automatic ignition and temperature control method for aviation kerosene and gas generator
  • Automatic ignition and temperature control method for aviation kerosene and gas generator
  • Automatic ignition and temperature control method for aviation kerosene and gas generator

Examples

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Embodiment Construction

[0013] figure 1 Shown is a flow chart of the automatic control ignition method according to an embodiment of the present invention. The process includes:

[0014] The start step (101) mainly includes data initialization,

[0015] Carry out the judgment of lower limit alarm (112), if the oil supply has reached the lower limit, then terminate the operation and enter the exit step, otherwise enter the oil filter alarm (113) judgment, if the oil filter alarm, then terminate the operation and enter the exit step. If there are no two alarms, start the oil pump and carry out the (102) step, and obtain the initial oil supply flow (103) step by querying the expert database. Query the oil supply expert database (104), and adjust the fuel flow of the auxiliary combustion chamber (105) and the fuel flow of the main combustion chamber (106) to be the ignition flow. Start ignition (107), including setting timer (as setting 45s) and opening auxiliary combustion chamber, main combustion ch...

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Abstract

The invention provides an automatic ignition and temperature control method for an aviation kerosene and gas generator, and relates to an ignition and temperature control method for a combustor. A function implementing method has characteristics of automatic ignition of a combustor in a blowing experiment for a hypersonic aircraft and characteristics of automatic high-precision temperature control. Adoption of expert control mainly comprises that an intelligent technology of an expert is used to guide engineering control, and the engineering control is required to reach an expert control level. Because a combustion process is complicated, and multi-parameter and multi-loop coordination control is related, the knowledge of the combustion expert is summarized in a knowledge base, and after field data are reasoned by the expert, corresponding expert decisions or control outputs are obtained. The control method has high reliability and stability, meets the requirement of a user on a modern management test, and can be used for a thermal environment simulation test of a hypersonic aircraft structure; the testing time and the testing cost are saved; and the economic benefit is high.

Description

[0001] This application is a divisional application of Chinese Patent Application No. 201110098384.1. technical field [0002] The invention relates to a method for realizing the ignition and temperature automatic control functions of an aviation kerosene gas generator. The invention belongs to the field of computer automatic control and intelligent control method design. Background technique [0003] A gas generator mainly utilizes aviation kerosene combustion to generate high-temperature gas flow, and can be used in the field of high-temperature environment simulation. [0004] The ignition process of aviation kerosene is very complicated, and the timing of fuel supply and sparking is required to be in place, otherwise it is easy to fail to ignite, and if the ignition fails and the fuel supply is not stopped in time, it is likely to cause "flashback" and endanger the safety of the fuel system. On the other hand, aviation kerosene combustion is a complex and dangerous proc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23N5/00
Inventor 李可董素君刘旺开王浚
Owner BEIHANG UNIV
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