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Artificial board VOC (Volatile Organic Compounds) releasing cabin capable of guaranteeing limit value of background gas concentration of cabin body

A technology of background gas and release chamber, which is applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve problems such as the influence of experimental results and the gas background concentration not meeting the requirements, and achieve the effects of low cost, easy processing, and simple operation

Inactive Publication Date: 2012-07-25
NORTHEAST FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a kind of wood-based panel VOC release cabin that can guarantee the limit value of the background gas concentration of the cabin, so as to solve the problem that the gas background concentration of the existing small-volume release cabin cannot meet the requirements and affect the experimental results.

Method used

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  • Artificial board VOC (Volatile Organic Compounds) releasing cabin capable of guaranteeing limit value of background gas concentration of cabin body
  • Artificial board VOC (Volatile Organic Compounds) releasing cabin capable of guaranteeing limit value of background gas concentration of cabin body
  • Artificial board VOC (Volatile Organic Compounds) releasing cabin capable of guaranteeing limit value of background gas concentration of cabin body

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Effect test

specific Embodiment approach 1

[0010] Specific implementation mode one: combine Figure 1-Figure 3 Describe this embodiment, the release chamber of this embodiment includes a motor 1, a reduction box 2, a stainless steel fan 4, a first electric heating rod 5, a cabin body 6, a first water bath glass cover 7, a first temperature and humidity sensor control Device 8, insulation layer 9, stainless steel bracket 10, first temperature and humidity sensor probe 11, airtight glass cover 12, sampling tube 13, total flow meter 18, second flow meter 19, first flow meter 20, water container 21, Glass tube 22, tetrafluoroethylene shaft 23 and nitrogen gas inlet pipe 24;

[0011] Nitrogen inlet pipe 24 communicates with water container 21 and second flow meter 19 respectively, and water container 21 communicates with first flow meter 20, and first flow meter 20 and second flow meter 19 are all communicated with total flow meter 18, total The flow meter 18 communicates with one end of the glass tube 22, the other end of...

specific Embodiment approach 2

[0020] Specific implementation mode two: combination figure 1 and figure 2 Describe this embodiment, the insulation layer 9 of this embodiment is a mineral wool layer, and the insulation material mineral wool surrounds the outside of the first water-bath glass cover 7 to ensure the temperature stability of the cabin. Other implementation manners are the same as the specific implementation manner 1.

specific Embodiment approach 3

[0021] Specific implementation mode three: combination figure 1 and figure 2 Describe this embodiment, the release chamber of this embodiment also includes a second water bath glass cover 14, a second electric heating rod 15, a second temperature sensor probe 16 and a second temperature sensing controller 17, the second water bath glass cover 14 is arranged between the airtight glass cover 12 and the total flow meter 18, the glass tube 22 passes through the second water bath glass cover 14, and the second water bath glass cover 14 is provided with a second electric heating rod 15 and a second temperature sensor probe 16, The second electric heating rod 15 and the second temperature sensor probe 16 are all electrically connected with the second temperature sensing controller 17. Before the nitrogen with a certain humidity enters the cabin body 6, it is first heated by a water bath to reach the temperature required for the experiment. The device is controlled by a second tempe...

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Abstract

The invention provides an artificial board VOC (Volatile Organic Compounds) releasing cabin capable of guaranteeing a limit value of a background gas concentration of a cabin body, relating to the artificial board VOC releasing cabin. The device solves the problems that the background concentration of the gas of the existing small-capacity releasing cabin cannot meet the requirement and an experimental result is influenced. A nitrogen gas inlet pipe is respectively communicated with a water container and a second flow meter; the water container is communicated with a first flow meter; the first flow meter and the second flow meter are communicated with a total flow meter; the total flow meter is communicated with a glass pipe; the glass pipe is communicated with the cabin body; a first water bath glass cover is arranged outside the cabin body; a motor is in a transmission connection with a speed reducing box; an output shaft of the speed reducing box is in the transmission connection with a tetrafluoroethylene shaft and a stainless steel fan; and a first electric heating rod and a first temperature and humidity sensor probe are electrically connected with a first temperature and humidity sensing controller. The artificial board VOC releasing cabin disclosed by the invention is used for detecting an artificial board and the releasing of volatile organic compounds VOC in a product.

Description

technical field [0001] The invention relates to an artificial board VOC releasing chamber. Background technique [0002] Volatile organic compounds (VOCs) released by building decoration materials seriously affect indoor air quality, resulting in various diseases caused by indoor air pollution in the world, collectively known as "sick building syndrome" (Sick Building Syndrome) ) SBS. Wood-based panels are widely used in furniture and interior decoration, and are one of the main sources of indoor VOC. At present, Germany, Denmark, Norway and Japan have legislated to limit the release of VOC from building materials. my country's national standard "Test method for release of volatile organic compounds in wood-based panels and their products - small release chamber method" and the forestry industry standard "Limits of release of volatile organic compounds in wood-based panels and their products for interior decoration materials" were established in 2010 In July and October 20...

Claims

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Application Information

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IPC IPC(8): G01N33/00G01N1/22
Inventor 沈隽李爽王敬贤
Owner NORTHEAST FORESTRY UNIVERSITY
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