A device and application for rapid on-line analysis of material combustion product gas components

Abstract

The invention provides a device and application for rapid on-line analysis of gas components of material combustion products. The rapid on-line analysis system used includes a material combustion device, a filter device, a gas supply device and a combustion product gas detection device. The application of the fast on-line analysis is to use the above-mentioned fast on-line analysis system to heat and burn the material, then take the combustion product gas out of the combustion device in real time with a certain flow rate of carrier gas, and directly enter the combustion product gas detection device after being filtered by the filter device for analysis. By changing the amount of combustion material, heating temperature and carrier gas flow rate, different concentrations of combustion product gas can be obtained, and then characteristic peaks with different intensities can be obtained. The combustion product gas of the material enters the detection device directly and quickly without any off-line pre-enrichment, chemical derivation and other pretreatment steps. The operation is simple, the analysis is fast, the response time is within 10s, and the combustion products of the material in different combustion periods can be obtained. Gas composition information.

Description

technical field [0001] The present invention relates to a device and its application for rapid on-line analysis of gas components of combustion products of materials. Specifically, the on-line analysis device is used to directly and quickly sample and analyze the gas produced by the combustion of filtered materials on-line, so that the materials can be obtained in different combustion periods. Combustion composition information to achieve the purpose of rapid online analysis of material combustion product gas. Background technique [0002] Fire statistical research shows that 70% to 75% of the casualties in fire accidents are poisoned by the smoke generated in the fire, rather than burned to death, which makes the toxicity analysis of the combustion product gas of materials become the focus of extensive attention of researchers. . The researchers found that the main toxic gases in the smoke from the burning of materials at the fire site included CO 2 , CO, HF, HCl, HBr, HC...

AI Technical Summary

Problems solved by technology

The production conditions and qualitative and quantitative analysis of these substances have become the main contents of the gas toxicity analysis of combustion products of different materials. The commonly used classical analysis methods include wet chemical analysis and colorimetric measurement, but these two methods belong to indirect off-line sampling. method, the operation is complicated, time-consuming, and the information of all the above-mentioned gases cannot be obtained at the same time

The new analysis method Fourier transform-infrared spectroscopy (FT-IR) developed later is a fast online analysis method, which is qualitative and quantitative accurate, fast in analysis speed, and high in measurement accuracy. The technical requirements for maintenance equipment are high, and the quality requirements for software use are also relatively high

Images