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Flue gas three-dimensional multi-physical field instantaneous measurement device and method

A multi-physics field and instantaneous measurement technology, applied in the field of gas jet verification experiment research, can solve the problems of large space required, rough measurement of external characteristics of flue gas, and high cost, and achieve the effect of no mutual interference

Pending Publication Date: 2022-04-12
XI AN JIAOTONG UNIV
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Problems solved by technology

The external field test has a great impact on the environment, is expensive, and requires a large space; the measurement of the external characteristics of the flue gas including height and width is very rough, which makes the obtained results quite different from the actual results; the field test also increases the smoke Difficulty and cost of measuring air temperature field, concentration field and velocity field

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  • Flue gas three-dimensional multi-physical field instantaneous measurement device and method

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Embodiment Construction

[0021] Below in conjunction with accompanying drawing and embodiment the present invention is described in detail:

[0022] like figure 1 As shown, a flue gas three-dimensional multi-physics instantaneous measurement device of the present invention includes a visual diffusion box, a schlieren measurement system, a TDLAS diode measurement system, a PIV measurement system and a data acquisition and analysis system; the visualization diffusion box 1 is installed on the inner wall Schlieren background plate 2, multiple horizontal and vertical slide rails are installed on the inner wall of the box, and the first platform 3 and the second platform 16 opposite to each other are installed on the slide rails; The background plate 2 and the high-speed CCD camera 4 facing the schlieren background plate 2 outside the box are composed; the TDLAS diode measurement system is composed of a signal generator 5, an adjustable laser 6, and a first fiber coupler 7 connected in sequence outside the...

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Abstract

The invention discloses a flue gas three-dimensional multi-physical field instantaneous measurement device and method, and the device comprises a visual diffusion box, a first platform, a second platform, and a schlieren measurement system composed of a schlieren background plate and a high-speed CCD camera. The TDLAS diode measurement system consists of a signal generator, a tunable laser, a first optical fiber coupler, a concentration signal generator, a temperature signal generator, a concentration signal sensor and a temperature signal sensor, the PIV measurement system consists of a PIV light source and a PIV special high-speed camera; according to the invention, the influence on the environment is small, the form change, the temperature field, the concentration field and the velocity field of the gas jet in the diffusion process can be accurately measured, and technical conditions can be created for establishing a smoke cloud diffusion model.

Description

technical field [0001] The invention belongs to the technical field of gas jet verification experiment research, and in particular relates to a flue gas three-dimensional multi-physical field instantaneous measurement device and method. Background technique [0002] Study the characteristics of smoke cloud diffusion and establish a smoke cloud diffusion model that can be used to invert the type of unknown explosion accident, equivalent or speculate on the model, power and damage effect of battlefield weapons, realize real-time and rapid detection of unknown explosion sources, remote evaluation of battlefield explosions, and off-site detection of explosion accidents Detection, rapid warning and assessment of detonation pollution by harmful substances are also of great value. [0003] Aiming at the problem of cloud diffusion, domestic and foreign academic circles have carried out a large number of related experiments for a long time. The external field test has a great impact...

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Application Information

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IPC IPC(8): G01N13/00
Inventor 王明军陈诺赖志贤苏光辉秋穗正田文喜
Owner XI AN JIAOTONG UNIV