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Shoe VOC volatilization sampling apparatus and method

A sampling device and footwear technology, applied in the direction of sampling devices, etc., can solve the problems of deviation of VOC component detection results, etc., and achieve the effect of convenient sampling consistency, fast speed, and accelerated volatilization speed

Inactive Publication Date: 2013-12-11
莆田出入境检验检疫局综合技术服务中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the status quo of the existing VOC detection mode methods for footwear products, the present invention proposes a footwear VOC volatilization sampling device and a related sampling method, aiming to overcome the problem that the original VOC components are affected and the detection results are biased

Method used

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  • Shoe VOC volatilization sampling apparatus and method
  • Shoe VOC volatilization sampling apparatus and method
  • Shoe VOC volatilization sampling apparatus and method

Examples

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Embodiment 1

[0040] Such as figure 1 with figure 2 As shown, a schematic diagram of Embodiment 1 of the present invention. figure 1 with figure 2 Both show the structure and principle of the VOC sampling device, the difference is that figure 1 Is the state of the preset step, figure 2 The status of the volatilization step is shown.

[0041] This shoe VOC volatilization sampling device includes a accommodating chamber 10, which has a cavity (about 12-18 liters in volume) that can accommodate at least one pair of whole shoes, and has a thermally conductive outer wall. The wall is made of stainless steel except for this embodiment. The accommodating chamber 10 includes an openable airtight door 11 to facilitate loading and unloading of the whole shoe. The airtight door 11 maintains a sealed state with the accommodating chamber 10 when closed and airtight. In communication with the accommodating chamber 10, there is an intake valve 13 and an exhaust valve 12, which constitute a complete gas pas...

Embodiment 2

[0050] Such as image 3 , Figure 4 with Figure 5 As shown, the schematic diagram of the second embodiment of the present invention. among them, image 3 Shows the state of the initialization step of this embodiment, Figure 4 with Figure 5 These are the states of the preset step and the volatilization step.

[0051] The basic detection idea of ​​this embodiment is similar to the first embodiment, but the second embodiment has other features:

[0052] First of all, compared with Embodiment 1, this embodiment also includes an initialization step before the preset step, such as image 3 In this initialization step, the accommodating chamber 10 is kept empty, while the intake valve 13 and the sealing door 11 are closed. Start the heater 15 and the convection mechanism 14, while the negative pressure generator 20 makes the containing chamber 10 into a negative pressure state through the exhaust valve 12; image 3 The initialization step shown will pass a set initialization time.

[...

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Abstract

The present invention discloses a shoe VOC volatilization sampling apparatus and a method. The apparatus is characterized in that the apparatus comprises an accommodation chamber, the volume of the accommodation chamber can accommodate a pair of the whole shoes, the accommodation chamber is provided with a heat conduction outer wall, comprises an openable sealing door and a gas exhaust valve, and further comprises a heater capable of heating gas in the accommodation chamber, and the gas exhaust valve and the accommodation chamber form a complete gas path. With the apparatus, rapid VOC detection with the whole shoe manner is achieved, characteristics of high precision, rapidness and convenient operation are provided, and the novel shoe VOC detection mode is established.

Description

Technical field [0001] The invention relates to a device for collecting volatile organic compounds (VOC) in footwear products and a related sampling method. Background technique [0002] As people's health requirements become higher and higher, more and more attention is paid to the volatile organic compound (VOC) residues in shoes and other wearing products. The traditional footwear VOC detection is to cut the finished footwear into pieces according to the material, then put it into a small sample bottle, seal it, and use the headspace gas chromatography method to detect the VOC content of each material. Although this method can be measured quickly The VOC content of the material, but there are still the following problems: First, the measured VOC result is only the result of the material, and some additional VOC components introduced or derived during the shoe manufacturing process cannot be reflected in the test results of the material; The VOC content of the material will ch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/22
Inventor 童玉贵
Owner 莆田出入境检验检疫局综合技术服务中心
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