Particulate matter filtering efficiency testing device and using method thereof

A technology for filtration efficiency and testing device, which can be used in measurement devices, permeability/surface area analysis, suspension and porous material analysis, etc. Effect

Active Publication Date: 2021-06-25
CHANGSHU MD MEDICAL DEVICE TECH SERVICE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the existing detection device in the prior art wastes a lot of dust, needs to be frequently removed from the place where the dust is produced, and greatly reduces the detection efficiency, and proposes a particle Filtration efficiency test device and method of use thereof

Method used

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  • Particulate matter filtering efficiency testing device and using method thereof
  • Particulate matter filtering efficiency testing device and using method thereof
  • Particulate matter filtering efficiency testing device and using method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0044] refer to Figure 1-8 , a particle filtration efficiency testing device, comprising a concentration detection component 102 for measuring dust concentration, a detection body 1, a filter screen 101 to be tested, the filter screen 101 to be tested is placed in the detection body 1, and also includes: a driving motor 103, Connected to the upper end of the detection body 1 to provide power for the device; the sliding cylinder 2 is fixedly connected to the upper end of the detection body 1; the sealing cylinder 201 is slidably connected in the sliding cylinder 2, and the concentration detection component 102 is connected in the sealing cylinder 201 ; The rotating shaft 104 is fixedly connected to the output end of the drive motor 103, and is partly in the sliding cylinder 2; the first rotating fan blade 105 is fixedly connected to the rotating shaft 104 for making the gas flow; the storage chamber 3 is arranged on The bottom end of the detection body 1 is used to store dust ...

Embodiment 2

[0053] refer to figure 2 , Figure 4 , Figure 8 , a particle filter efficiency testing device, which is basically the same as that of Embodiment 1, furthermore: the bottom end of the sliding cylinder 2 is rotatably connected with a first rotating block 202, the sealing cylinder 201 is threadedly connected with the first rotating block 202, and the sealing cylinder 201 A guide groove 203 is arranged on the top, and a guide block 204 matching the guide groove 203 is fixedly connected to the sliding cylinder 2 to facilitate the movement of the sealing cylinder 201 .

Embodiment 3

[0055] refer to Figure 2-4 , a particle filtration efficiency testing device, which is basically the same as that of Embodiment 1, furthermore: the upper end of the storage chamber 3 is connected with a first rotating plate 302 for symmetrical rotation, and the middle of the storage chamber 3 is connected with a second rotating plate 303 for symmetrical rotation. A collecting cavity 301 is formed between the second rotating plate 303 and the first rotating plate 302, and a concentration detection component 102 is connected to both sides of the upper end of the collecting cavity 301, which is convenient for detecting the dust concentration.

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Abstract

The invention discloses a particulate matter filtering efficiency testing device and a using method thereof, and belongs to the field of filtering efficiency testing. The particulate matter filtering efficiency testing device comprises a concentration detection part for measuring dust concentration, a detection main body and a to-be-tested filter screen, the to-be-detected filter screen is placed in the detection main body; the driving motor is connected to the upper end of the detection main body and is used for providing power for the device; a sliding cylinder which is fixedly connected to the upper end of the detection main body; a sealing cylinder which is connected in the sliding cylinder in a sliding manner, and the concentration detection component is connected in the sealing cylinder; a rotating shaft, which is fixedly connected to the output end of the driving motor, wherein a part of the rotating shaft is located in the sliding cylinder. Dust can be conveniently collected through the collecting cavity, loss is reduced, redundant gas can be conveniently collected through the gas collecting groove, dust on the to-be-detected filter screen can be conveniently collected through the collecting groove, and loss is further reduced.

Description

technical field [0001] The invention relates to the technical field of filtration efficiency testing, in particular to a particle filtration efficiency testing device and a method for using the same. Background technique [0002] The filter screen is a widely used component. In order to achieve the filtering effect, the filter screen is an indispensable choice. The working principle of the filter screen is simple, that is, through the different sizes of the mesh holes, particles of different sizes come through. , so the cost of the filter is low, and thus becomes the first choice for filtering; [0003] Since the filter is widely used, the filtration efficiency of the filter has also attracted attention. Most of the previous detection methods use dust with the same particle size, let the dust pass through the filter, and then measure the concentration of dust on both sides of the filter. Then calculate the filtration efficiency of the filter screen, but the existing detecti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/08
CPCG01N15/08G01N2015/084
Inventor 吴超儿
Owner CHANGSHU MD MEDICAL DEVICE TECH SERVICE CO LTD
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