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Air flow high-temperature sensor calibration device for gas-liquid spray nozzle

A technology of high-temperature sensors and gas-liquid nozzles, applied in measuring devices, instruments, aerodynamic tests, etc., can solve the problems of lack of steady-state and dynamic calibration of airflow high-temperature sensors, high-temperature measurement accuracy of high-temperature airflow, etc.

Active Publication Date: 2013-03-20
BEIJING CHANGCHENG INST OF METROLOGY & MEASUREMENT AVIATION IND CORP OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the high temperature and high requirements for the accuracy of high-temperature airflow temperature measurement, there is still a lack of devices for steady-state and dynamic calibration of airflow high-temperature sensors that meet the needs.

Method used

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  • Air flow high-temperature sensor calibration device for gas-liquid spray nozzle
  • Air flow high-temperature sensor calibration device for gas-liquid spray nozzle
  • Air flow high-temperature sensor calibration device for gas-liquid spray nozzle

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Embodiment Construction

[0032] In order to better illustrate the technical solution of the present invention, the present invention will be further described below through an embodiment in conjunction with the accompanying drawings.

[0033] A gas flow high-temperature sensor calibration device for gas-liquid nozzles, the structure of which is as follows figure 1 As shown, it includes: a gas generator (1), a kerosene supply system (2), an air supply system (3), an oxygen supply system (4), a water cooling system (5) and a measurement and control system (6).

[0034] The main function of the gas generator (1) is to mix kerosene with air or oxygen, generate high-temperature gas after combustion, and provide the required temperature field for the calibration device.

[0035] The main function of the kerosene supply system (2) is to supply liquid kerosene to the gas generator (1) according to the working conditions of the gas generator (1).

[0036] The main function of the air supply system (3) is to s...

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Abstract

The invention relates to an air flow high-temperature sensor calibration device for a gas-liquid spray nozzle, which is applicable to steady and dynamic calibration of air flow high-temperature sensors below 2300K, and belongs to the technical field of high temperature sensor calibration. According to the invention, the air flow high-temperature sensor calibration device is formed by adopting a gas generator, a kerosene supply system, an air supply system, an oxygen gas supply system, a water cooling system, a measurement and control system, and the like. In order to guarantee the temperature field quality during high temperature sensor calibration, a manner of combining the gas-liquid spray nozzle type gas generator with a converged straight section is adopted. The air flow high-temperature sensor calibration device has the advantages of good temperature field quality, high combustion efficiency, relative simple structure, and the like, and can solve the problem of steady and dynamic calibration of the air flow high-temperature sensors below 2300K.

Description

technical field [0001] The invention relates to an airflow high-temperature sensor calibration device for gas-liquid nozzles, which is suitable for steady-state and dynamic calibration of airflow high-temperature sensors below 2300 Kelvin (K), and belongs to the technical field of high-temperature sensor calibration. Background technique [0002] Domestic air flow high-temperature sensor steady-state and dynamic calibration devices generally use thermal calibration wind tunnels for mixed combustion of kerosene and air. The combustion chamber is an evaporation loop type with a stable section for rectification. The highest temperature that can be calibrated is 2000K. At present, in the fields of national defense such as aviation and aerospace, the measurement temperature involved is getting higher and higher, and the airflow temperature of some engines has reached 2300K. Due to the high temperature and high requirements for the accuracy of high-temperature airflow temperature ...

Claims

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Application Information

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IPC IPC(8): G01M9/00
Inventor 赵俭杨永军
Owner BEIJING CHANGCHENG INST OF METROLOGY & MEASUREMENT AVIATION IND CORP OF CHINA
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