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Device for sampling volatile organic compound in water

A volatile organic compound and sampling device technology, applied in the sampling device and other directions, can solve problems such as low sampling efficiency, and achieve the effects of improving collection efficiency and solving low collection efficiency.

Active Publication Date: 2019-05-14
CHANGCHUN NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the sampling efficiency of the existing sampling devices for volatile organic compounds in water is low, and it is difficult to meet the needs of current monitoring and scientific research

Method used

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  • Device for sampling volatile organic compound in water
  • Device for sampling volatile organic compound in water
  • Device for sampling volatile organic compound in water

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] see Figure 1-3 , in an embodiment of the present invention, a volatile organic compound sampling device in water includes a tank body 1, a water inlet 2, an air outlet pipe 3, a nitrogen gas source 9, an adsorption device 19, and an adsorption layer 20, and the bottom of the right side wall of the tank body 1 There is a water inlet 2, a valve is installed on the water inlet 2, an air outlet pipe 3 is installed on the top of the tank body 1, and a first valve 4 is installed on the air outlet pipe 3, the first valve 4 is opened, and the valve on the water inlet 2 is opened at the same time , immerse the tank body 1 in water, keep the first valve 4 above the water surface, under the action of atmospheric pressure, water enters the tank body 1 through the water inlet 2, collects water samples, and closes the valve on the water inlet 2 after the collection is completed , and close the first valve 4 at the same time, the inside of the tank body 1 is provided with a rotating ...

Embodiment 2

[0023] On the basis of embodiment 1, the left and right sides of rotating shaft 5 are respectively provided with vibrating plate 15, and the side wall of vibrating plate 15 is distributed with spring 16, and vibrating plate 15 is installed on the inner wall of tank body 1 by spring 16, and vibrating plate 15 There are several electric heating plates 17 distributed on the side wall of the vibrating plate 15, the vibration motor 18 is fixedly connected to the lower end of the vibrating plate 15, the vibration motor 18 is started to drive the vibrating plate 15 to vibrate, thereby driving the electric heating plate 17 to vibrate, and the electric heating plate 17 is used to heat and stir the tank body 1 The water is helpful to the release of organic components in the water, further improving the collection efficiency of organic matter.

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Abstract

The invention discloses a device for sampling a volatile organic compound in water. The device comprises a tank, a water inlet, a gas outlet pipe, a nitrogen source, an adsorption device and an adsorption layer; a rotating shaft is arranged in the tank; a motor is fixedly connected to the upper surface of the tank; the shaft extension end of the motor is provided with a first gear in a sleeving manner; the upper end of the rotating shaft is provided with a second gear in a sleeving manner; the left side wall of the tank is fixedly connected to the nitrogen source; the lower end of the rotatingshaft is provided with a turntable in a sleeving manner; a driving gear is arranged below the turntable; a driven gear is arranged on a driven shaft in a sleeving manner; a stirring blade is installed on the top of the driven shaft; the adsorption device is installed on the top of the tank; the tank is immersed into water; a water sample is collected; an organic matter in water is taken away by utilization of nitrogen; simultaneously, water in the tank is stirred by utilization of the stirring blade; therefore, water flows vertically; the organic matter component in water is released easily;the organic matter collection efficiency is increased; water in the tank is heated and stirred by utilization of an electric heating plate; the organic matter component in water is easily released; and the organic matter collection efficiency is further increased.

Description

technical field [0001] The invention relates to an environmental monitoring device, in particular to a sampling device for volatile organic compounds in water. Background technique [0002] Volatile organic compounds refer to organic compounds with a saturated vapor pressure greater than 70.91Pa at room temperature and a boiling point less than 260°C at room temperature. From the perspective of environmental monitoring, it refers to the general term for non-methane hydrocarbons detected by oxygen flame ionization detector. The definition of total volatile organic compounds (TVOC) by the World Health Organization (WHO.1989) is: the melting point is lower than room temperature. A general term for volatile organic compounds with a boiling point ranging from 50 to 260°C. There are many types of VOC pollution, mainly including alkanes, aromatics, olefins, halocarbons, esters, aldehydes, ketones and other organic compounds. With the rapid development of my country's industriali...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/10
Inventor 刘宝林董炜华宋扬李晓强李明杨翔宇
Owner CHANGCHUN NORMAL UNIVERSITY