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Collecting device for detecting VOCS of oil mist volatilization

A technology for collecting devices and oil mist, which is applied in the direction of measuring devices, sampling devices, sampling, etc., to reduce environmental errors and avoid interference

Pending Publication Date: 2019-07-05
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, there is no research on the factory for the patent of testing volatile organic compounds, but the volatilization of factory oil mist is an important source of volatile organic compounds in the factory environment

Method used

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  • Collecting device for detecting VOCS of oil mist volatilization
  • Collecting device for detecting VOCS of oil mist volatilization

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Embodiment Construction

[0016] The specific embodiments of the present invention will be described in further detail below in conjunction with the drawings and examples. The following embodiments are used to illustrate the present invention, but not to limit the scope of the present invention.

[0017] like figure 1 As shown, one end of the environmental chamber 1 made of stainless steel is closely connected with the air pipe 5 made of stainless steel for introducing air; the air introduced from the air pipe 5 needs to pass through the high-efficiency air cleaner 6 equipped with activated carbon; the environmental chamber made of stainless steel 1 The top and bottom are respectively provided with a fan 2 and an oil mist sample placement area 3 for testing volatility; the other end of the environmental chamber 1 made of stainless steel is connected to the Tenax-TA adsorption tube 7, and the other end of the Tenax-TA adsorption tube 7 is connected to the The air sampling pump 8 is connected to drive th...

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Abstract

The invention discloses a collecting device for detecting VOCs of oil mist volatilization. The device comprises an environmental chamber and is characterized in that one end of the environmental chamber is tightly connected with an air pipe to introduce air, the air introduced by the air pipe passes through an air purifier, the other end of the environmental chamber is connected with a Tenax-TA adsorption tube, the other end of the Tenax-TA adsorption tube is connected with an air sampling pump to drive sampling, the top in the environmental chamber is provided with a fan, and the bottom of the environmental chamber is provided with an oil mist sample placing area. The Tenax-TA adsorption tube is put into an automatic desorber and a gas chromatograph-mass spectrometer after sampling for analysis.

Description

technical field [0001] The invention relates to the technical field of testing volatile organic compounds, in particular to a collection device for detecting volatilized VOCs in oil mist. Background technique [0002] Indoor environmental pollution has been widely concerned, not only residential and commercial buildings, but also the air quality in industrial plants is in urgent need of improvement. In workshops where a large amount of organic solvents such as cutting fluids and machining fluids are used on average every day, dust particles and oil mist particles generated during processing can be removed by centrifugation and electrostatic methods, but those emitted volatile organic compounds (VOCs) cannot be effectively purified. To thoroughly improve the air quality in the workshop, the most important thing is to clarify the composition and concentration of these volatile organic compounds, so that these polluting gases can be treated in a targeted manner. Thereby great...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/22G01N30/02G01N30/06G01N30/72
CPCG01N1/22G01N1/2214G01N30/02G01N30/06G01N30/7206G01N2030/025G01N2030/128G01N2001/2244
Inventor 龙正伟张思轶张宏盛
Owner TIANJIN UNIV