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Atmosphere particles- carbon black aerosol quality and concentration monitor and monitoring method

A technology of atmospheric particulate matter and mass concentration, applied in particle suspension analysis, instrumentation, meteorology, etc.

Inactive Publication Date: 2010-09-01
合肥霍金光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the operation of this method is complicated and the monitoring cost is high, which is not conducive to the continuous real-time monitoring of carbon black aerosol.

Method used

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  • Atmosphere particles- carbon black aerosol quality and concentration monitor and monitoring method
  • Atmosphere particles- carbon black aerosol quality and concentration monitor and monitoring method
  • Atmosphere particles- carbon black aerosol quality and concentration monitor and monitoring method

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Experimental program
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Embodiment Construction

[0046]The mass concentration monitor of carbon black aerosol in atmospheric particles is mainly composed of LED light source array 11, gas monitoring room 4, reference photodetector 13, measuring photodetector 14, paper feeding transmission mechanism, three-way solenoid valve 8, mass flow A controller 7, an air pump 1, and a gas filter 6 are composed; in the above-mentioned gas monitoring chamber 4, the top is an LED light source array 11, and the bottom of the gas monitoring chamber 4 is a sealed transparent glass partition 12. The light of the LED array 11 passes through the glass partition Behind the plate 12, the energy distribution is uniform; there is only one air-permeable window on the glass partition 12; the bottom of the gas monitoring chamber is pressed on the uniformly light-transmitting quartz filter paper belt, and the optical glass partition installed on the base is below the paper belt , under the partition is a reference photodetector 13; on the upper surface o...

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Abstract

The invention discloses an atmospheric particle black carbon aerosol quality concentration monitoring instrument, including an air monitoring room. The upper end of the air monitoring room is connected with a suspended absorption electromagnetic iron. The top of the air monitoring room is provided with a LED light source array. The air monitoring room is communicated with an air inlet. The bottompart of the air monitoring room is a glass plate, which is equipped with a breathable window. A quartz filter paper belt is arranged under the air monitoring room. Two reference and measurement photoelectric detectors are arranged under the quartz filter paper belt. One detector is used for reference and another detector is used for test. With an optical attenuation method adopted, the invention has the advantages of good real-time performance, high precision and low cost, improved automation degree, time and labor-saving performance and all-weather automatic continuous operation. The continuous and real-time on-line monitoring of the atmospheric particle black carbon aerosol is ensured.

Description

technical field [0001] The invention relates to the field of environmental protection monitoring, in particular to an instrument and method for conveniently and online monitoring the mass concentration of carbon black aerosol in atmospheric particles. Background technique [0002] Carbon black aerosol has a very important impact on regional and even global climate and environmental changes. Its particle size is generally less than 2.5 microns, and it is more harmful to human health than PM10. Therefore, it has gradually become the detection object of meteorological departments and environmental protection organizations in various countries. At present, the international methods for detecting carbon-containing aerosols mainly include: [0003] A. Turbidity measurement method: This method uses a traditional "turbidity coefficient" sampler (CoefficientOf Haze tape sampler, referred to as COH) to collect aerosol at a certain point for a fixed period of time, and then measure th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01W1/14G06F19/00G01N21/17G01N15/06
Inventor 李季章月法戚俊刘文清刘建国魏庆农
Owner 合肥霍金光电科技有限公司
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