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Layered particle concentration measuring device and method

A particle concentration and measurement device technology, which is applied in the direction of measurement devices, particle suspension analysis, suspension and porous material analysis, etc., can solve the problems of slow response speed and high cost, and achieve the effect of accelerating speed and improving response speed

Inactive Publication Date: 2014-06-11
深圳市芯通信息科技有限公司
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Problems solved by technology

[0003] With the rapid development of LED, laser, optical fiber, electronics and computers, light scattering particle measurement technology has been greatly developed, providing an effective solution for the field of particle measurement, but how to separate particles of different particle sizes Measuring the concentration to obtain the distribution data of particles with different particle sizes has become the focus of attention. Of course, traditional measurement devices also have defects such as slow response speed and high cost.

Method used

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  • Layered particle concentration measuring device and method
  • Layered particle concentration measuring device and method
  • Layered particle concentration measuring device and method

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Embodiment 1

[0019] Such as figure 1 , a layered particle concentration measuring device, comprising an air inlet channel 10, and an upper air outlet channel 20 and a lower air outlet channel 30 communicated with the lower air outlet of the air inlet channel 10, the air inlet channel 10 is in a vertical state or at least Its lower half is in a vertical state, and the upper air outlet channel 20 is positioned above the lower air outlet channel 30; the side portion of the upper air outlet channel 20 is correspondingly provided with a first particle concentration measuring device 40, and the side portion of the lower air outlet channel 30 is correspondingly provided with There is a second particle concentration measuring device 50, which is used to measure the particle concentration in the air flowing through each corresponding passage; wherein, in this embodiment, a device for helping the air intake passage to accelerate into the lower air outlet passage 30 is provided. The gas device 60, of...

Embodiment 2

[0034] Such as figure 2 , a layered particle concentration measurement method, the steps comprising:

[0035] S1. An air intake channel is provided, and an upper air outlet channel and a lower air outlet channel communicated with the lower air outlet of the air intake channel, the upper air outlet channel is located above the lower air outlet channel; the air intake channel is in a substantially vertical state or at least the lower half of the air intake channel is basically vertical, the purpose is: after the air flows into the air intake channel, the larger particles in the air will be in a fast falling state, and enter the lower outlet channel with the air;

[0036] S2. Perform decompression treatment on the inside of the lower air outlet channel to make it generate suction to help the air intake channel to accelerate the intake of external air; of course, it is also possible to perform decompression treatment on the inside of the upper air outlet channel, or to the upper...

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Abstract

The invention discloses a layered particle concentration measuring device and method. The device comprises an air inlet passage as well as an upper air outlet passage and a lower air outlet passage which are communicated with an air outlet in the lower part of the air inlet passage; the upper air outlet passage is positioned above the lower air outlet passage; the side parts of the upper air outlet passage and the lower air outlet passage are respectively and correspondingly provided with a first particle concentration measuring device and a second particle concentration measuring device for measuring the particle concentration in air flowing through the inside of the first particle concentration measuring device and the second particle concentration measuring device; devices for promoting the air intake accelerating of the air inlet passage are arranged in the upper air outlet passage and / or the lower air outlet passage. The layered particle concentration device and method can realize the separation of particles with different grain diameters, can effectively obtain the concentration of the particles with different grain diameters in the air, and is high in response speed and low in cost.

Description

[technical field] [0001] The invention relates to a method for measuring particle concentration in the air, in particular to a layered particle concentration measuring device and method. [Background technique] [0002] Dust refers to tiny solid particles suspended in the air, which settle under the influence of gravity, but can remain suspended for a period of time. There are various kinds of dust suspended in the air, mainly including floating dust (particle size less than 10um), falling dust (particle size greater than 10um) and total suspended particles, and its particle size ranges generally from 0.1 to 100um. PM10 refers to suspended particulate matter with a particle size of less than 10um, which belongs to the category of floating dust. It can be suspended in the air for a long time and is also a major threat to human health. A large number of research data show that the length of exposure time in an environment with excessive particulate matter concentration (usuall...

Claims

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Application Information

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IPC IPC(8): G01N15/06
Inventor 金爽钟俊峰廖世迁
Owner 深圳市芯通信息科技有限公司
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