A carbon dioxide emission detection method based on oxygen content measurement

Abstract

The invention discloses a detection method for carbon dioxide emission based on oxygen content determination. The detection method is used for calculating the carbon dioxide emission through a difference value between the content of oxygen in air entering combustion equipment and the content of oxygen in flue gas discharged out of the entering combustion equipment. The detection method is simple in process, smaller in data fluctuation, accurate in analysis and low in detection cost. The invention further discloses a detection device applied to the detection method, which comprises an air flow determining device, a flue gas flow determining device, a flue gas oxygen content determining device and a data analysis device. The detection device can realize on-line detection and is high in detection speed.

Description

technical field [0001] The invention belongs to the field of carbon emission detection, and in particular relates to a carbon dioxide emission detection method and detection device based on oxygen content measurement. Background technique [0002] Carbon emission is a general term or abbreviation for greenhouse gas emission. With the rapid development of economy, energy consumption is increasing year by year. Due to the irrational use of resources, environmental problems are becoming more and more severe, and the problem of global warming is prominent. The main reasons are Huge emissions of greenhouse gases. Carbon dioxide contributes the most to greenhouse gases, so controlling and measuring carbon emissions is an important issue. [0003] At present, the commonly used measurement of carbon dioxide emissions is based on the measurement of carbon content changes, that is, it is necessary to measure the carbon content in coal, ash carbon content, coal consumption, ash genera...

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Problems solved by technology

However, this measurement method has the following disadvantages: 1) The coal and ash composition analysis process is complicated, and it needs to be sampled and then sent to the laboratory for analysis, which takes a long period and cannot be measured online; Affected by other factors, the error is relatively large; the carbon content of ash is affected by combustion conditions, sampling methods, particle size, etc., and the error is relatively large; 3) coal consumption and ash generation need to be weighed and measured, and it is difficult to achieve automatic measurement; 4 ) Coal and ash analysis sample cost is high and economical is poor

These two methods both have high testing costs: the electrochemical probe wears out quickly during online measurement, and the replacement cost is high; the infrared probe needs to filter the flue gas before detection because the infrared is greatly interfered by dust, water vapor and other components. And dry under heat preservation to prevent acid corrosion, the auxiliary equipment is more complicated, some need to be replaced regularly, the infrared detection system itself is expensive, and the cost is relatively high

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