Ultrasonic wave method filter membrane attached particulate matter re-flying method and device

An ultrasonic method and particle technology, applied in the direction of measuring devices, sampling devices, test sample preparation, etc., can solve the problems of low stripping efficiency and difficult operation, and achieve easy control of atomized particle size, strong penetrability, and direct The effect of connection

Pending Publication Date: 2017-01-11
NANCHANG UNIV
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  • Abstract
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  • Claims
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Problems solved by technology

However, since particles are often embedded in the pores of the filter membrane, this simple mechanical stripping is inefficient, especially for fine particles that are invisible to the naked eye and easily suspended, and the operation is particularly difficult

Method used

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  • Ultrasonic wave method filter membrane attached particulate matter re-flying method and device

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Embodiment Construction

[0019] The present invention will be further illustrated by the following examples.

[0020] The method for attaching particulate matter to the ultrasonic filter membrane of the present invention mainly includes the following steps:

[0021] (1) Immerse the filter membrane with attached particles in the cleaning solution;

[0022] (2) Use the high-frequency oscillation effect of ultrasonic to peel, stir and disperse the particulate matter attached to the filter membrane in the cleaning solution;

[0023] (3) Use the ultrasonic fountain to form a mist to disperse and suspend the cleaning liquid containing particles to form a liquid mist containing particles;

[0024] (4) Heating the suspension mist containing particulate matter, the particulate matter inside the mist is released as the vaporization of the liquid mist disappears, and is in a suspended state. At the same time, the vaporization of the liquid mist will form an expanded airflow to achieve suspended particulate matter Fly out...

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Abstract

The invention relates to an ultrasonic wave method filter membrane attached particulate matter re-flying method and device, and is applicable to the technical field of atmosphere particulate matter sampling and test. The device mainly comprises a liquid storage groove, a filter membrane clamp, a cleaning groove, a flow rate meter, a heating sheet, an atomization groove, a vibrator and an atomization sheet. Firstly, particulate matters attached onto a filter membrane soaked into the cleaning liquid are subjected to peeling, stirring and scattering through ultrasonic wave high-frequency oscillation; then, the ultrasonic wave spring fogging effect is used for changing the cleaning liquid with the particulate matters into liquid mist with the particulate matters; then, the heating sheet is used for vaporizing the liquid mist containing the particulate matters; finally, suspension and flying of the particulate matters can be realized. The method and the device have the advantages that the principle is simple; the operation is convenient; the re-flying of the particulate matters attached on the filter membrane can be fast and efficiently realized; the physical and chemical properties of the particulate matters cannot be influenced; the device can be directly connected into a particulate matter test instrument.

Description

Technical field [0001] The invention relates to the sampling and testing of atmospheric particulate matter, and is particularly suitable for testing the particulate matter attached to the filter membrane to fly again. Background technique [0002] The pollution of atmospheric particulate matter in our country is serious, especially the fine particulate matter such as PM2.5 and PM10 generally exceeds the standard. Air quality, atmospheric visibility and human health are greatly affected and threatened. Accurate analysis and testing of the physical and chemical properties of particulate matter is an important scientific prerequisite for the targeted formulation of relevant standards, policies and regulations, and control measures. [0003] Direct field testing of atmospheric particulate matter can accurately and timely reflect the state of the atmospheric environment. With the development of testing technology, large-scale laboratory precision instruments have emerged. Compared with...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/28G01N1/22G01N15/00
CPCG01N1/2205G01N1/2273G01N1/28G01N15/00
Inventor 李建龙吴代赦
Owner NANCHANG UNIV
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