Comprehensive analysis device for combustion and fire extinguishing process of cup combustor

Abstract

The invention discloses a comprehensive analysis device for a combustion and fire extinguishing process of a cup combustor, the device comprises a cup combustor main body, an infrared gas analyzer, agas collecting hood, a flue gas analyzer, an exhaust pipe, a high-pressure gas storage cylinder, a gas bottle, a draught fan, a quartz glass cover, a thermocouple, a data collection module, a computer, a high-speed camera and the like, qualitative and quantitative analysis of combustion products of fuel and action products of a fire extinguishing agent and flame in an experiment process of the cupcombustor can be realized, the combustion and extinguishing mechanisms of combustibles are studied, toxic and harmful substances produced by the experiment can be effectively isolated, the structureis safe and reliable, the measurement result is accurate, and environmental protection is realized.

Description

technical field [0001] The invention relates to the field of fire science and technology, in particular to a comprehensive analysis device for the combustion and fire extinguishing process of a cup burner. Background technique [0002] In 1977, R.Hirst and K.Booth (Hirst R, Booth K.Measurement of flame-extinguishing concentrations[J].Fire Technology, 1977,13(4):296-315.) introduced the cup burner system in the evaluation Since the application of the critical extinguishing concentration of fire extinguishing agent, the cup burner, as a laboratory-scale device that can generate a stable diffusion flame, has become an effective experimental tool for studying fuel diffusion combustion and evaluating the effectiveness of gas fire extinguishing agents. The method has been written in NFPA 2001 (Standard on Clean Agent Fire Extinguishing Systems), ISO 14520-Part1 (Gaseous fire-extinguishing systems-physical properties and system design) and GB / T20702-2006 (Test method for fire extin...

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Problems solved by technology

[0004] The different types of improved cup burners involved in Chinese patents CN103454387A, CN103901156A, CN106823227A, CN104749331A and CN208155957U cannot effectively solve the above problems

In the literature (Chen Tao, Xue Gang, Wang Rongji, et al. Research on the amount of hydrogen fluoride produced in the process of clean gas fire extinguishing agent and flame[J]. Safety and Environment Journal, 2011,11(3).) studied the cup burner The amount of hydrogen fluoride gas generated during the fire extinguishing process of the experiment, this experiment can only analyze the amount of corrosive gas hydrogen fluoride produced during the fire extinguishing process of the cup burner, and cannot study other parameters. The external environment is not isolated from the device, and although the spectroscopic method can detect the concentration of hydrofluoric acid on-line, the measured value is the point average concentration of the corresponding section. The result is affected by many factors such as temperature and gas distribution, and can be obtained The qualitative research results of the concentration trend of hydrofluoric acid generation, the quantitative research on the total amount of hydrofluoric acid generation needs further verification

[0005] The limitations of the existing device cannot meet the precise and comprehensive analysis of the combustion products obtained by the cup burner experiment, and the in-situ measurement of the characteristic parameters of the flame and the fire extinguishing process can not be used to deeply analyze the mechanism of the fire extinguishing agent and the flame, nor can the device Isolated from the surrounding environment to avoid the diffusion of combustion products and the influence of the surrounding environment on the experiment

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