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Controllable external field smoke cloud diffusion characteristic experimental device and method

A diffusion characteristic and experimental device technology, applied in the field of high-temperature gas jet verification experiment research, can solve the problems of large environmental impact, high cost, large estimation error of smoke cloud diffusion and explosion, and achieve the effect of precise angle control

Pending Publication Date: 2022-03-18
XI AN JIAOTONG UNIV
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, because large-scale field tests have a great impact on the environment and are costly, most of the studies are small-equivalent experiments, and the empirical relational formula obtained for the smoke diffusion ceiling is narrow in scope. The explosion high estimate error is large

Method used

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  • Controllable external field smoke cloud diffusion characteristic experimental device and method
  • Controllable external field smoke cloud diffusion characteristic experimental 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] Such as figure 1 As shown in the present invention, a controllable external field smoke cloud diffusion characteristic experimental device includes a smoke box 1, a first valve 101 and a compressor 2 are connected to the downstream pipeline of the smoke box 1, and the compressor 2 communicates with the storage tank through a second valve 102. The gas tank 3 is connected, and the downstream pipeline of the gas storage tank 3 is equipped with a first pressure gauge 201 and a third valve 103 for monitoring pressure, and the downstream pipeline of the third valve 103 is installed with a heating section 4 to heat the gas from the gas storage tank 3, and the heating section 4 A flow meter 5 and a flow regulating valve 6 are installed in the downstream pipeline to measure and adjust the flow of the heated flue gas respectively. The temperature transmitter 301 lo...

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Abstract

The invention relates to a controllable external field smoke cloud diffusion characteristic experiment device and method, and the device comprises a smoke generation system which is composed of a smoke generation box, a compressor and a gas storage tank, a smoke temperature and pressure control system which is composed of a heating section, a flowmeter, a flow regulating valve, a temperature transmitter, a buffer tank, a pressure gauge and a thermometer, and an adjustable nozzle. The marking plate, the fan, the high-speed CCD camera, the sliding rail and the anemometer are arranged in the diffusion box; according to the invention, on the premise that the influence on the environment is small, the track and form change of the high-temperature gas jet flow in the diffusion process and the speed, temperature and density distribution of the jet flow axis at different heights can be measured under different environmental wind conditions and initial conditions of different ejection temperatures, flow speeds, angles and the like.

Description

technical field [0001] The invention belongs to the technical field of high-temperature gas jet verification experiment research, and in particular relates to a controllable external field smoke cloud diffusion characteristic experimental 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. However, because larg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N13/00
CPCG01N13/00G01N2013/003
Inventor 王明军陈诺赖志贤秋穗正田文喜苏光辉
Owner XI AN JIAOTONG UNIV
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