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Detection device for content of formaldehyde in air and detection method thereof

A formaldehyde content and detection device technology, applied in the direction of measuring devices, material analysis through observation of the impact on chemical indicators, instruments, etc., can solve the problems of general application difficulties, cumbersome adjustment of support frames, and poor adjustability of sampling devices. Achieve the effects of avoiding damage, easy operation and convenient adjustment

Active Publication Date: 2019-01-25
ZHENGZHOU YU CHI TESTING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Commonly used formaldehyde measuring instruments are mainly composed of three parts: a support frame, a tester body, and a sampling device. The commonly used formaldehyde measuring instruments have poor adjustability of the sampling device, and the adjustment of the support frame is cumbersome, which makes it difficult for the general application of the actual family.

Method used

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  • Detection device for content of formaldehyde in air and detection method thereof
  • Detection device for content of formaldehyde in air and detection method thereof
  • Detection device for content of formaldehyde in air and detection method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0064] Such as figure 1 A detection device for formaldehyde content in the air shown is characterized in that it includes a sample collection device 1 , and a sample detector 2 is installed above the sample collection device 1 .

[0065] Such as figure 2 As shown, the sample collection device 1 includes an air collection mechanism 11 and a support mechanism 12 fixedly installed under the air collection mechanism 11 .

[0066] Such as image 3 As shown, the air collection mechanism 11 includes a collection pipe 111 and a collection bracket 112 fitted under the collection pipe 111 .

[0067] Such as Figure 4 As shown, the collection bracket 112 includes two parallel vertical struts 1121, the two vertical struts 1121 are symmetrical in structure, the vertical struts 1121 are telescopic rods, and the sides of the vertical struts 1121 are vertically installed with horizontal connecting rods 1122 , an arc-shaped support 1123 is fixedly installed on the end of the transverse co...

Embodiment 2

[0092] The invention provides a detection method for detecting formaldehyde content in air by using the detection device, and the detection method comprises the following steps:

[0093] Step 1: Install the collection tube 111 on the collection bracket 112, and adjust the position of the collection bracket 112. After the adjustment is completed, add 5 mL of formaldehyde absorption solution into the collection tube 111, set the sampling flow rate to 1.0 L / min, and the sampling volume to 20 L , after the sampling is completed, a formaldehyde sample solution is obtained;

[0094] Step 2: Prepare the proofreading agent, take an empty colorimetric bottle, accurately measure 5mL distilled water into the empty colorimetric bottle, place the empty colorimetric bottle into the colorimetric tank in the sample detector 2, and perform zero adjustment;

[0095] Step 3: Take an empty sample liquid bottle, accurately measure 5mL formaldehyde sample liquid into the empty sample liquid bottle,...

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Abstract

The invention discloses a detection device for content of formaldehyde in air and a detection method thereof. The detection device comprises a sample collecting device, wherein a sample detector is arranged above the sample collecting device in a fitting way; the sample collecting device comprises an air collecting mechanism and a support mechanism, and the support mechanism is fixedly arranged under the air collecting mechanism; the air collecting mechanism comprises a collecting pipe and a collecting bracket, and the collecting bracket is arranged under the collecting pipe in the fitting way. The detection device has the advantages that by arranging the sample collecting device, the position of the collecting pipe can be conveniently adjusted; by arranging the support mechanism, the height of the support frame can be conveniently adjusted; by adopting the design, the detection method for detecting the content of formaldehyde in air by the detection device has the advantage that the operation is simple and convenient; the detection method is suitable for ordinary home self-help formaldehyde detection.

Description

technical field [0001] The invention belongs to the field of environmental detection, and in particular relates to a detection device and a detection method for formaldehyde content in air. Background technique [0002] Formaldehyde, a colorless gas, is irritating to human eyes, nose, etc. On October 27, 2017, in the list of carcinogens published by the International Agency for Research on Cancer of the World Health Organization, formaldehyde was placed in the list of first-class carcinogens. Formaldehyde in indoor air mainly comes from wood-based panels for interior decoration, furniture made of wood-based panels, other various decorative materials that contain formaldehyde and may emit formaldehyde to the outside world, and materials that emit formaldehyde after burning. The indoor air quality standard stipulates that formaldehyde The maximum allowable content is 0.10mg / m 3 , which shows the importance of formaldehyde content determination. Commonly used formaldehyde mea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/78G01N21/01
CPCG01N21/01G01N21/783G01N2021/0112
Inventor 孙世民朱倩倩
Owner ZHENGZHOU YU CHI TESTING TECH