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Measurement method of emission concentrations of particulate matters in gases and system of measurement

A technology of emission concentration and measurement method, which is applied in the direction of measurement device, particle size analysis, particle suspension analysis, etc., can solve the problem of inaccurate particle concentration and achieve the effect of improving accuracy

Active Publication Date: 2017-02-22
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] In order to overcome the existing technical problem of inaccurate measurement of particulate matter concentration in gas, the present invention provides a method and system for measuring the concentration of particulate matter in gas that can measure the concentration of particulate matter in gas in real time and with high accuracy

Method used

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  • Measurement method of emission concentrations of particulate matters in gases and system of measurement
  • Measurement method of emission concentrations of particulate matters in gases and system of measurement
  • Measurement method of emission concentrations of particulate matters in gases and system of measurement

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Effect test

no. 1 Embodiment

[0075] The first specific embodiment: under the current working conditions, the mass percentage of PM2.5 in the database corresponding to the total suspended particulate matter after dust removal by mechanical dust removal is 29.5% (P1), and the mass percentage of PM10 in the total suspended particulate matter is 57.9%. (P2), using Pegasor Mi3 equipment to measure in real time the concentration of PM2.5 in the particulate matter to be tested under the current working condition is 2.60mg / m 3 (M1), combined with formula (1) and formula (2), the concentration of PM10 can be obtained in real time as 5.10mg / m 3 (M2), the concentration of total suspended particulate matter is 8.81mg / m 3 (M3).

no. 2 Embodiment

[0076] The second specific embodiment: under the current working conditions, the mass percentage of PM2.5 in the database corresponding to the total suspended particulate matter is 29.5% (P1), and the mass percentage of PM10 in the total suspended particulate matter is 71.6% after dust removal by wet dust removal. (P2), using Pegasor Mi3 equipment to measure in real time the concentration of PM2.5 in the particulate matter to be tested under the current working condition is 2.60mg / m 3 (M1), combined with formula (1) and formula (2), the concentration of PM10 can be obtained in real time as 6.31mg / m 3 (M2), the concentration of total suspended particulate matter is 8.81mg / m 3 (M3).

no. 3 Embodiment

[0077] The third specific embodiment: under the current working conditions, the mass percentage of PM2.5 in the database corresponding to the total suspended particulate matter is 30.6% (P1), and the mass percentage of PM10 in the total suspended particulate matter is 60.1% after dust removal by means of electrostatic precipitator (P2), using Pegasor Mi3 equipment to measure in real time the concentration of PM2.5 in the particulate matter to be tested under the current working condition is 2.60mg / m 3 (M1), combined with formula (1) and formula (2), the concentration of PM10 can be obtained in real time as 5.11mg / m 3 (M2), the concentration of total suspended particulate matter is 8.50mg / m 3 (M3).

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Abstract

The invention relates to the field of environment monitoring and particularly relates to a measurement method of emission concentrations of particulate matters in gases and a system thereof. The measurement method comprises the following steps: step S1, collecting a plurality of groups of standard samples in different gas emission environments, selecting a reference particulate matter and at least one particulate matter to be measured, and establishing a corresponding relation between the concentration of the reference particulate matter in a standard sample and the concentration of the particulate matters to be measured in a corresponding emission environment; and step S2, measuring the concentration of the reference particulate matter in a sample to be measured in a corresponding gas emission environment and obtaining the concentration of the particulate matters to be measured according to the corresponding relation. The invention also provides a system for measuring emission concentrations of particulate matters in gases; the measurement system is based on the principle of the measurement method. The measurement method of the emission concentrations of the particulate matters in gases and the system thereof have the advantages of high accuracy and simple measurement processes.

Description

[0001] 【Technical field】 [0002] The invention relates to the field of environmental monitoring, in particular to a method and system for measuring the emission concentration of particulate matter in gas. [0003] 【Background technique】 [0004] Generally, for the gas discharge point, the concentration of particulate matter emitted by it needs to be measured according to the requirements. At present, the weighing method is used as the standard measurement method for the emission of particulate matter concentration, but this method is cumbersome to operate as a standard measurement method for emission of particulate matter concentration, and it is impossible to perform continuous real-time measurement and provide measurement data in time. [0005] In order to measure the emission concentration of particulate matter in gases such as coal-fired power plants in real time, the method of optical scattering is usually used for online measurement. In the flue gas emission of general ...

Claims

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Application Information

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IPC IPC(8): G01N15/06G01N15/02
CPCG01N15/02G01N15/06
Inventor 彭先德向勇
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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