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Particulate matter pm10 particle size cutting device

A cutting device, a technology for particulate matter, which is used in measurement devices, sampling devices, particle and sedimentation analysis, etc., can solve problems such as it is difficult to meet the diversified actual detection needs in the field of environmental monitoring, and achieve compact structure, ensure normal operation, and cut Efficient effect

Inactive Publication Date: 2015-09-02
ANHUI INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Today, only a few developed countries in the world have the ability to design and develop particle size grading devices, and they are often used as accessories for large-scale special equipment, such as ultrafine particle spectrometers, time-of-flight spectrometers, particle oscillation balances, etc. Difficult to meet the diversified actual detection needs in the field of domestic environmental monitoring

Method used

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  • Particulate matter pm10 particle size cutting device
  • Particulate matter pm10 particle size cutting device
  • Particulate matter pm10 particle size cutting device

Examples

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Embodiment Construction

[0030] like figure 1 As shown, a particulate matter PM 10 The particle size cutting device includes a rainproof cover 1, the inside of the rainproof cover 1 is connected with a gas rectifier 4, the lower part of the rainproof cover 1 is connected with a sample gas rectification chamber 3, and the sample gas rectification chamber 3 Set on the outside of the gas rectifier 4, an annular air inlet is formed under the rainproof cover 1. The lower part of the sample gas rectification chamber 3 is connected to the sample gas acceleration chamber 5, and the lower part of the sample gas acceleration chamber 5 is An acceleration nozzle 6 is fixedly connected, and the lower part of the acceleration nozzle 6 is screwed with an inertial separation chamber 8. After the sample gas passes through the acceleration chamber, the airflow reaches a certain flow rate and enters the inertial separation chamber 8. The lower part of the inertial separation chamber 8 is fixed with an inertial impactor...

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PUM

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Abstract

The invention discloses a PM (particulate matter) 10 cutting device. The cutting device comprises a dust cover, a dust net, a sample gas rectification cavity, a sample gas rectifier, an accelerating nozzle, an inertia separation chamber, an inertia impaction table, a sample gas collecting chamber and a water collecting bottle, wherein the water collecting bottle is placed at the outer side of the cutting device, and is communicated with the inside of an inertia spray impact cavity through a glass delivery tube. The cutting device is compact in structure, and can realize high-efficiency cutting on particulate matters of 10 mum under the condition of constant flow rate of sample flow, and the influences of sand storms, rains and snows, high-humidity environment and the like on the cutting device are reduced to the greatest extent. The cutting device is widely used for carrying out grain-size cutting on particulate matters for environment monitoring equipment.

Description

technical field [0001] The invention relates to the technical field of atmospheric aerosol detection, in particular to a PM 10 Particle size cutting device. Background technique [0002] Particulate matter pollution has gradually become one of the important sources of pollution affecting ambient air quality. In recent years, the research on particle size, chemical composition and concentration of atmospheric particulate matter has progressed rapidly. Due to the wide range of particle size distribution in the air, which can range from a few nanometers to tens of microns, most of the particles closely related to human production and life are particles with a particle size below 10 μm. Therefore, it is necessary to realize particle size cutting The first prerequisite for the measurement of particulate matter characteristic parameters, particulate matter PM 10 The research and development of particle size cutting device will have important practical significance. [0003] To...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/22G01N15/02
Inventor 王杰刘建国陆亦怀王亚萍陈军桂华侨方武陆钒伍德侠
Owner ANHUI INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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