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Online analysis system for organic matters in air

An analysis system and organic matter technology, applied in the direction of analysis materials, material separation, measurement devices, etc., can solve the problems of large influence of external environment changes, unreasonable calibration system, poor data repeatability, etc. Low concentration sensitivity and good data reliability

Pending Publication Date: 2020-07-21
北京高斯匹克技术有限公司
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Problems solved by technology

[0007] Combining the technical advantages of experimental equipment and online analyzers, it makes up for the shortcomings that the laboratory system cannot analyze in real time and has a great impact on changes in the external environment; it makes up for the shortcomings of the online system sampling system, poor data repeatability, and poor reliability; it makes up for the shortcomings of domestic The equipment calibration system is unreasonable. In addition, the detector adopts an independent design structure and data acquisition system, which can not only maintain low concentration sensitivity, but also adapt to large-span concentration

Method used

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  • Online analysis system for organic matters in air
  • Online analysis system for organic matters in air
  • Online analysis system for organic matters in air

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Embodiment Construction

[0029] 1. System peripheral support system ( figure 1 ): The device is a standard 4U or 5U device, installed in a movable cabinet ( figure 1 -7), placed in a station building or an explosion-proof cabin with an air-conditioned environment or a good ventilation system ( figure 1 -S), through switches and GPRS / 4G / 5G / wired routers ( figure 1 -8) Connection system and long-distance data transmission, using carrier gas (nitrogen or helium) cylinders ( figure 1 -T) as injection and column gas using a hydrogen generator ( Picture 1-1 2) and remove hydrocarbon and remove water and zero air ( Figure 1-4 ) as gas and supporting gas, through compression refrigeration equipment ( figure 1 -5) As a peripheral isolated heat exchange cooling device, cold air is provided as sampling adsorption tube and focusing tube for cooling, through ceramic heating tube ( figure 2 -H1 / 2 / 3) Provide sampling adsorption tube and focusing tube heating.

[0030] 2. Systematic sampling / cold focusing en...

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Abstract

The invention discloses an online analysis system for organic matters in air. According to the novel online analysis system for organic matters in air, a low-temperature (-120 DEG C to normal temperature) external heat exchange refrigeration three-way thermal desorption (double-way sampling and one-way cold focusing) system, a shunt / non-shunt sample injection three-way chromatographic column (one-way pre-column and two-way chromatographic columns with different properties) and a double-ion / photon detector (adaptive large-span concentration switching) are adopted as main analysis systems, and the organic volatile / semi-volatile organic matters in the air are fully analyzed by using a calibration system of direct sample injection multipoint calibration (same as an experimental calibration method) and sampling tube sample injection quality control.

Description

Technical field: [0001] On-line analysis of volatile and semi-volatile organic compounds in the air Background technique: [0002] 1. The existing on-line analysis systems for organic matter in the air mainly include two types: laboratory analysis systems and on-line analysis systems. In the context of low concentration sensitivity and high concentration span, existing equipment usually uses multiple calibration curves. The analysis process and The calibration process is very complicated, the operation of the instrument is difficult, and the technical level of personnel is high; [0003] 2. The laboratory analysis system relies on liquid nitrogen or electronic refrigeration thermal desorption system as the sampling system, and the laboratory chromatography / mass spectrometer as the analyzer. According to the EPA analysis method, the analysis cost is high, the laboratory conditions are high, and there is no real-time analysis of samples. The ability can only be analyzed in th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02G01N30/08G01N30/20G01N30/46G01N30/68G01N30/74
CPCG01N30/02G01N30/08G01N30/20G01N30/46G01N30/68G01N30/74G01N2030/085G01N2030/201
Inventor 朱晓红李玉株张垒
Owner 北京高斯匹克技术有限公司
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