Inertia fiber filter membrane device for grading particles

A fiber filter membrane and inertial technology, applied in the direction of sampling devices, etc., can solve the problems of difficult to accurately detect air quality or pollution index, the classification and collection of particulate matter is not accurate and stable, and difficult to collect particulate matter, so as to facilitate the collection of particulate matter and benefit Collision collection, good collection effect

Inactive Publication Date: 2012-09-19
DONGGUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, there are still many deficiencies in the graded impactor of the prior art, for example: 1. The structure is complex and the assembly is troublesome; 2. The graded collection of particulate matter is not accurate and stable enough; Air Quality or Pollution Index

Method used

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  • Inertia fiber filter membrane device for grading particles
  • Inertia fiber filter membrane device for grading particles
  • Inertia fiber filter membrane device for grading particles

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Embodiment Construction

[0036] Please refer to Figure 1 to Figure 6 As shown, it shows the specific structure of the preferred embodiment of the present invention, which includes a housing 10, a multi-stage impact collection group and a suction pump 70, and the suction pump 70 (usually a suction pump) is arranged in the housing At the air outlet of the body 10, in order to form a continuous and stable airflow from the air inlet to the air outlet.

[0037] The housing 10 is hollow, and a sampling channel 11 extending up and down is formed inside it, and an air inlet and an air outlet are respectively provided on the housing along the two ends of the sampling channel 11, and are arranged in sequence along the airflow direction in the sampling channel 11. There is a first collision collection group 20, a second collision collection group 30 and a third collision collection group 40. Of course, the series setting of the collision collection group is not limited to this, and it can be set according to ac...

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Abstract

The invention discloses an inertia fiber filter membrane device for grading particles. The inertia fiber filter membrane device comprises a shell and a sampling passage arranged in the shell. An air inlet and an air outlet are formed on the shell along both ends of the sampling passage; and two stages or more than two stages of collision collecting groups are sequentially arranged in the sampling passage along the airflow direction, wherein each of the collision collecting groups comprises a barrier plate; the centre of the barrier plate is provided with diversion holes in which fiber filter membranes are filled; the fiber filter membrane comprises a plurality of metal fibers wound with one another; and the sizes of the diversion holes sequentially formed on the collision collecting groups along the airflow direction as well as the diameters of the metal fibers of the fiber filter membrane filled in the diversion holes are reduced in sequence. Therefore, when airflow passes through the fiber filter membrane, fine particles collide with the metal fibers under the action of inertia to achieve the effects of filtration and collection. The device is simple in structure and convenient to assemble and disassemble, and can collect smaller particles; and moreover, particle size is accurate and a collection effect is stable due to the adoption of grading collection.

Description

technical field [0001] The invention relates to the field technology of equipment for sampling microorganisms or particles in the atmosphere, in particular to an inertial fiber membrane filter device for particle classification. Background technique [0002] With the development of industry, the level of particulate pollutants in the atmosphere is increasing. These particulate pollutants will absorb various harmful substances in the air that can damage the nervous system and cause cancer, and bring many negative effects to the environment and human health. How to classify and calibrate the particle size of the particulate matter in the atmosphere is the primary problem in the research and solution of atmospheric particulate matter pollution. [0003] People use the particle sampling system to obtain the corresponding level of particulate matter in the air, so as to effectively detect and analyze the air quality or pollution index. Usually, an impactor sampler is used to car...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/24
Inventor 白云鹤范洪波
Owner DONGGUAN UNIV OF TECH
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