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Phase change engine tail flame temperature testing device and control method

A test device and engine technology, applied in the direction of engine testing, jet engine testing, gas turbine engine testing, etc.

Active Publication Date: 2021-03-23
CHANGSHA ZHONGLIAN HENGTONG MACHINERY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention provides a phase change engine tail flame temperature testing device and control method, aiming to solve the technical problems of the above-mentioned defects existing in the existing engine temperature testing system

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  • Phase change engine tail flame temperature testing device and control method
  • Phase change engine tail flame temperature testing device and control method
  • Phase change engine tail flame temperature testing device and control method

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Embodiment Construction

[0049] In order to better understand the above-mentioned technical solution, the above-mentioned technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0050] like Figure 1 to Figure 5 As shown, the first embodiment of the present invention proposes a phase change engine tail flame temperature testing device, including an engine combustion chamber 10, an air injection port 20, a temperature calibration sensor 30, an infrared thermometer 40 and a controller 50, wherein the air injection port 20 is connected with the engine combustion chamber 10, and is used for injecting phase-change engine tail flame 100; The quantity of temperature calibration sensor 30 is a plurality of, and a plurality of temperature calibration sensors 30 are circumferentially placed at the outlet of the jet port 20, for Sensing the temperature of phase change engine tail flame 100 in all directions to calibrate the phase c...

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Abstract

The invention discloses a phase change engine tail flame temperature testing device and a control method. The device comprises an engine combustion chamber, an air nozzle, a temperature calibration sensor, an infrared thermometer and a controller. The controller is used for collecting the initial temperature and the instantaneous temperature, sensed by the multiple gas temperature sensors, of thetail flame of the phase-change engine, receiving the initial temperature and the instantaneous temperature monitored by the infrared thermometer, and calculating the corrected actual temperature; andrecording the temperature of the tail flame of the phase change engine according to the set time interval of the sampling frequency and drawing a temperature time change curve. According to the invention, the measurement data of the infrared thermometer can be automatically calibrated, and the process change of the tail flame temperature can be recorded in real time; the tail flame temperature ofthe phase change engine is accurately measured; by analyzing and researching measured data, the design of the phase change engine can be corrected, the propellant fuel ratio can be adjusted, and the infrared radiation characteristic of the engine can be optimized; and the algorithm of the temperature average value can greatly eliminate the human deviation in the installation process.

Description

technical field [0001] The invention relates to the field of phase change engine temperature testing, and in particular discloses a phase change engine tail flame temperature testing device and a control method. Background technique [0002] The tail flame is the high-temperature, high-speed airflow injected by the aircraft engine, which is of great significance to the study of the infrared radiation characteristics of the aircraft tail flame, and can provide reliable data for infrared protection. To study the infrared radiation intensity of the plume, it is necessary to know the temperature field, pressure field and composition of the plume. It is of great significance to study the temperature, pressure and composition of the plume for better infrared stealth technology of the plume. The engine flame temperature is one of the important thermodynamic parameters of the combustion process. At present, there are data showing that there is some research on missile flame temper...

Claims

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Application Information

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IPC IPC(8): G01M15/02G01M15/14G01K13/02
CPCG01M15/02G01M15/14G01K13/02
Inventor 梁更生
Owner CHANGSHA ZHONGLIAN HENGTONG MACHINERY
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