Volatile organic compound pollutant unorganized standard-exceeding emission early warning and sample reserving system

A technology for volatile organic compounds and pollutants, which is applied in sampling, sampling devices, measuring devices, etc., can solve the problems that cannot be used for environmental management pollution source monitoring and law enforcement, cannot give non-methane total hydrocarbons and exact organic matter concentrations, inconsistencies, etc. To achieve the effect of simple control, compact and cheap equipment, and easy maintenance

Pending Publication Date: 2020-06-23
河北东讯科技有限公司
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Problems solved by technology

However, the detection result of photoionization detector (PID) is the result of the mixed response of various pollutants, which cannot give the non-methane total hydrocarbons and the exact organic concentration specified in the national standard method.
The monitoring results are inconsistent with the requirements of national standards and methods, and the value of the test results cannot be used for environmental management and pollution source monitoring and law enforcement

Method used

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  • Volatile organic compound pollutant unorganized standard-exceeding emission early warning and sample reserving system

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Embodiment Construction

[0025] as attached figure 1 As shown, the present invention includes two parts: a PID continuous monitor and an automatic tank sampler. When the volatile organic compound (VOCS) pollutants detected by the PID continuous monitor reach a certain value, an early warning signal is given to drive the automatic tank sampler. Collect samples. The collected samples are analyzed with national standard methods to determine whether the enterprise has exceeded the emission standards.

[0026] The main function of the PID continuous monitor is to detect volatile organic compounds based on the PID sensor and output the detection signal. It includes PID sensor, data acquisition and processing unit, control unit and sound and light alarm unit. The PID sensor responds to volatile organic compounds, outputs the current value, and the current enters the data acquisition and processing unit to amplify the signal and filter out the interference signal in the signal. The control unit sets the al...

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Abstract

The invention relates to a volatile organic compound pollutant unorganized standard-exceeding emission early warning and sample reserving system. The system comprises a photoionization detector (PID)continuous monitor and an automatic tank sampler. The PID continuous monitor comprises a PID sensor, a data acquisition and processing unit, a control unit and a sound-light alarm unit. In the invention, the PID continuous monitor is adopted to realize continuous monitoring and alarming of inorganized emission of volatile organic compound emission enterprises, and meanwhile, the automatic tank sampler is utilized to perform automatic sampling and sample reserving so that uninterrupted online monitoring of pollution sources and timeliness, accuracy and representativeness of sampling are ensuredto be realized.

Description

technical field [0001] The invention belongs to the field of environmental monitoring, and specifically relates to an early warning and sample retention system for fugitive and excessive discharge of volatile organic compound pollutants, which is suitable for monitoring the fugitive and excessive discharge of volatile organic compound (VOCS) pollutants at the factory boundary and in the factory. Background technique [0002] Volatile organic compounds (VOCs) refer to organic compounds with volatile properties that participate in atmospheric photochemical reactions with a saturated vapor pressure greater than 70 Pa at normal temperature and a boiling point below 260 °C at normal pressure. It is usually divided into several categories such as non-methane hydrocarbons (referred to as NMHCs), oxygen-containing organic compounds, halogenated hydrocarbons, nitrogen-containing organic compounds, and sulfur-containing organic compounds. VOCs participate in the formation of ozone and...

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Application Information

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IPC IPC(8): G01N33/00G01N1/24
CPCG01N33/0063G01N1/2273G01N1/24
Inventor 崔建升刘大喜段丽莉王凯谢博宇范邦遒
Owner 河北东讯科技有限公司
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