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A formaldehyde adsorption test chamber

A formaldehyde adsorption and test chamber technology, applied in the field of air pollutant detection, can solve the problems of formaldehyde gas leakage and affecting test results, etc.

Active Publication Date: 2016-06-15
FUJIAN XINSEN CARBON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the addition of the adsorbent is carried out after the formaldehyde gas is passed into the box, it is easy to cause the leakage of the formaldehyde gas and affect the test results

Method used

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  • A formaldehyde adsorption test chamber
  • A formaldehyde adsorption test chamber
  • A formaldehyde adsorption test chamber

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Experimental program
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Embodiment 4

[0041] Please refer to figure 1 , Embodiment 4 of the present invention is: the method that formaldehyde adsorption test chamber carries out formaldehyde adsorption test:

[0042] (1) open the cabin door 9, put the airtight tank with the measured adsorbent in advance into the cabin;

[0043] (2) Under the condition of constant temperature, close the cabin door 9, open the induced draft fan 12, make the air circulation in the cabin, penetrate the formaldehyde of certain concentration through the gas introduction hole 10 simultaneously, observe the formaldehyde detector 13, get final product when reaching required concentration Close the valve of the gas inlet hole 10, and observe the humidity with the hygrometer at the same time, and adjust the humidity through the humidity adjustment hole 14 to keep it consistent with the initial humidity;

[0044] (3) Blank cycle for 8-10 hours, so that the formaldehyde in the cabin reaches a dynamic adsorption equilibrium, and the concentra...

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PUM

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Abstract

The invention provides a formaldehyde adsorption test cabin capable of avoiding gas leakage in the cabin. The formaldehyde adsorption test cabin comprises a box body, wherein a cabin door, a gas lead-in hole and a glove mounting hole are formed in the side surface of the box body; chemical protective gloves are arranged in the glove mounting hole towards the box body; and the edges of the chemical protective gloves are fixed on the glove mounting hole in a sealing manner. The formaldehyde adsorption test cabin has the beneficial effects that a sealing tank containing metered formaldehyde adsorption agent is put into the cabin before a formaldehyde gas is introduced; formaldehyde is introduced into the closed box body; the sealing box is opened through the chemical protective gloves which are arranged on the box body in the sealing manner; the metered formaldehyde adsorption agent is poured into an object loading device; the chemical protective gloves on the glove mounting hole are applied to operation in a completely closed environment in the cabin; and the formaldehyde in the cabin can be prevented from escaping to affect the test result.

Description

technical field [0001] The invention relates to the technical field of air pollutant detection, in particular to a formaldehyde adsorption test chamber. Background technique [0002] The current formaldehyde adsorption test methods mainly include: [0003] 1. Forced adsorption method: pass pure nitrogen through formaldehyde solution (38-40%), make nitrogen carry formaldehyde and its water vapor, and pass the mixed gas through the adsorption column equipped with formaldehyde adsorbent, and test the gas after passing through the adsorption column Medium formaldehyde concentration. In this method, the formaldehyde mixed gas is forced to pass through the adsorption column, which cannot effectively simulate the adsorption of formaldehyde by the adsorbent in the living environment. [0004] 2. Gravimetric method: put an adsorbent of known weight into a container containing a certain concentration of formaldehyde, and after a certain period of time, test the weight change of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/00
CPCG01N33/00
Inventor 林鹏林锴官忠明欧文林雯怡
Owner FUJIAN XINSEN CARBON