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An air fixed-point sampler and sampling method

A technology of fixed-point sampling and air, applied in the direction of sampling devices, etc., can solve the problems of low referenceability and irregular discharge time, and achieve the effects of low cost, easy management, and simple structure

Active Publication Date: 2020-06-12
江西省宇罡电子股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In atmospheric monitoring, it is necessary to regularly sample the air to extract particulate matter in the air. The existing extraction method is to use an air purifier to drive the air to run through the operation of the air purifier, and then use the air to actively pass through the filter. , to achieve the extraction of particulate matter, and then separate the extracted particulate matter and send it for inspection to determine the content of polluting particulate matter in the air. However, the discharge time of the factory is usually irregular. Therefore, the time for this type of air sampling is due to The maintenance time is short, so the reference of sampling is not great. At the same time, because the sampling point is fixed, some factories will observe the working time of the sampling point and carry out sneak discharge when the sampling point is shut down.

Method used

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  • An air fixed-point sampler and sampling method

Examples

Experimental program
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Effect test

Embodiment 1

[0029] Such as figure 1 and figure 2 The air fixed-point sampler shown includes a test tube 1 for storing samples. The test tube 1 is made of plastic material, and an insertion rod 101 is formed by injection molding at the lower end of the test tube 1. The test tube 1 is transparent, which is convenient for each test tube. Check the extraction of particulate matter in the air every 10 to 20 days. There is a detachable air inlet pipe 2 above the test tube 1. The air inlet pipe 2 and the test tube 1 are detachable, which is convenient for later extraction from the test tube 1. The particulate matter is sent for inspection. A shaft 3 is inserted into the upper axis of the air inlet pipe 2, and a bearing 301 is installed between the shaft 3 and the air inlet pipe 2. In this embodiment, the bearing 301 adopts It is a roller bearing. An outer tube 4 is arranged on the upper end of the rotating shaft 3. The thickness of the outer tube 4 is 0.25 mm. A plurality of arms 401 are forme...

Embodiment 2

[0032] refer to image 3 As shown, the insertion rod 101 is a solid structure, and the lower end of the insertion rod 101 is injection-molded to form a cylindrical spike 121. When fixing the product, select a soil layer for placement, and insert it downward through the spike To the ground, the depth of the insertion rod inserted into the ground is 15cm~20cm, and the diameter of the insertion rod is 8mm~12mm; the design purpose of the insertion rod is to facilitate the installation of this product on the earthy ground, and the installation is easier easy.

Embodiment 4

[0034] refer to Figure 4As shown, the test tube 1 is filled with filter cotton 131 for capturing particles. The filter cotton is designed to passively capture particles in the air. When the air enters the test tube, the particles can be collected through the filter cotton.

[0035] Wherein, the filter cotton 131 is a medium-efficiency filter cotton.

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Abstract

The invention discloses an air fixed point sampler and a sampling method. The sampler comprises a test tube for storing a sample. The test tube is made of a plastic material. A plugging rod is formedat the lower end of the test tube in an injection molding manner. An inlet pipe that can be dismounted movably is arranged above the test tube; a rotating shaft is inserted into the axis of the upperend of the inlet pipe; and a bearing is assembled between the rotating shaft and the inlet pipe. An outer tube is arranged at the upper end of the rotating shaft; a plurality of support arms are formed at the outer wall of the outer tube in an injection molding manner; and a semi-spherical wind cup is formed at one end, away from the outer tube, of each support arm in an injection molding manner.An axial-flow type fan blade being made of an aluminum alloy material is assembled to one part, arranged in the inlet pipe, of the rotating shaft. Therefore, long-time sampling is carried out; and thereference significance of sampling is improved.

Description

technical field [0001] The invention relates to an air fixed-point sampler and a sampling method. Background technique [0002] In atmospheric monitoring, it is necessary to regularly sample the air to extract particulate matter in the air. The existing extraction method is to use an air purifier to drive the air to run through the operation of the air purifier, and then use the air to actively pass through the filter. , to achieve the extraction of particulate matter, and then separate the extracted particulate matter and send it for inspection to determine the content of polluting particulate matter in the air. However, the discharge time of the factory is usually irregular. Therefore, the time for this type of air sampling is due to The maintenance time is short, so the reference of sampling is not great. At the same time, because the sampling point is fixed, some factories will observe the working time of the sampling point and carry out sneak discharge when the sampling...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/22G01N1/10
Inventor 黄小梅
Owner 江西省宇罡电子股份有限公司
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