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Atmospheric volatile organic matter sampling device

A technology of volatile organic compounds and sampling devices, which is applied in the direction of sampling devices and the preparation of test samples, etc., can solve the problems of prolonging sampling time, low sampling efficiency, slow air intake speed, etc., and achieve the effect of improving sampling efficiency

Inactive Publication Date: 2018-12-14
JILIN JIANZHU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] During the sampling process of the existing volatile organic compound sampling device, the air intake speed is slow, which greatly prolongs the sampling time and low sampling efficiency

Method used

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  • Atmospheric volatile organic matter sampling device
  • Atmospheric volatile organic matter sampling device
  • Atmospheric volatile organic matter sampling device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] see Figure 1-3 , in an embodiment of the present invention, an atmospheric volatile organic compound sampling device includes a base 1, a motor 4, a first condenser tube 18, a second condenser 19 and a condenser bracket 20, and the lower surface of the base 1 is fixedly connected with Leg 2, a piston cylinder 6 is provided above the base 1, the lower surface of the piston cylinder 6 is fixedly connected with a fixed frame 3, the lower end of the fixed frame 3 is fixedly connected with the base 1, and the piston cylinder 6 is connected to the base 1 through the fixed frame 3. Fixedly connected, the right side of fixed frame 3 is provided with motor 4, and the bottom of motor 4 is fixedly connected with base 1 by motor support 5, and the inside of piston barrel 6 is provided with crankshaft 12, and crankshaft 12 is connected with the inwall of piston barrel 6 in rotation, The shaft end of the motor 4 passes through the side wall of the piston barrel 6 and is fixedly conn...

Embodiment 2

[0025] On the basis of Embodiment 1, a bag filter 22 is provided on the right side of the second condenser 19, and the exhaust port of the second condenser 19 communicates with the air inlet of the bag filter 22 through a pipeline. 22 to remove the dust in the air, the bottom of the bag filter 22 is equipped with a collection tank 23, and the dust is collected by the collection tank 23, the top of the bag filter 22 is provided with an exhaust port 24, and the treated air is discharged through the exhaust port 24 .

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Abstract

The invention discloses an atmospheric volatile organic matter sampling device which comprises a base, a motor, a first condensing tube, a second condenser and condenser brackets. A piston cylinder isarranged above the base, the piston cylinder is fixedly connected to the base through a fixing frame, and the motor is arranged on the right side of the fixing frame. Crank shafts are arranged insidethe piston cylinder, a piston plate is further arranged inside the piston cylinder, and a connecting rod is rotatably connected to the journals of the crank shafts. The first condensing tube is arranged on the right side of the piston cylinder, and the second condenser is arranged on the right side of the first condensing tube. When organic matters in the air need to be sampled, the piston plateis driven to move left and right by the motor, the air enters into a filter and is initially filtered by a filter net, the filtered air enters into the piston cylinder, and organic components in the air are condensed by using the first condensing tube and the second condenser; and by adjusting the rotation speed of the motor, the air inlet speed can be conveniently adjusted, and the sampling operation is facilitated.

Description

technical field [0001] The invention relates to an environmental monitoring device, in particular to a sampling device for atmospheric volatile organic compounds. Background technique [0002] Volatile organic compounds are often expressed as VOCs, and TVOC is sometimes used to express total volatile organic compounds. According to the definition of the World Health Organization, a compound with a boiling point of 50-250°C has a saturated vapor pressure of more than 133.32Pa at room temperature, and is a type of organic compound that exists in the air in the form of vapor at room temperature. The U.S. Environmental Protection Agency defines it as the removal of CO, CO 2 、H 2 CO 3 , metal carbide, metal carbonate and ammonium carbonate, any carbon-containing compound that participates in atmospheric photochemical reactions. [0003] The harm of volatile VOC is obvious. When the concentration of VOC in the room exceeds a certain concentration, people will feel headache, na...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/24G01N1/34G01N1/42
CPCG01N1/24G01N1/34G01N1/42
Inventor 李明徐莹莹刘宝林薛红海沈梦楠刘滨硕
Owner JILIN JIANZHU UNIVERSITY
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