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Concentration adjustable salt particle aerosol generating system

An aerosol generation and salt particle technology, applied in aerogel preparation, colloid chemistry, colloid chemistry, etc., can solve the problems of large mass concentration range and uncontrollable mass concentration of salt particles, and achieve the effect of convenient regulation

Active Publication Date: 2017-05-10
NINGBO UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The above-mentioned invention can control the particle size of salt particles in aerosol by using the agglomeration of sound waves, but the mass concentration of salt particles in aerosol is uncontrollable, and the range of mass concentration of salt particles required in the research and application field of the device is relatively large. Especially in the study of atmospheric environment, the mass concentration of particulate matter is relatively dilute, so it is necessary to dilute the mass concentration of salt particulate matter generated by it

Method used

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  • Concentration adjustable salt particle aerosol generating system

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Effect test

Embodiment 1

[0016] A salt particle aerosol generation system with adjustable concentration of the present invention consists of an air compressor 1, a filter 2, a dryer 3, an air buffer tank 4, a first needle valve 5, a first air flow meter 6, and an air heating Device 7, first Venturi tube 8, second needle valve 9, second air flow meter 10, saline solution storage tank 11, metering pump 12, aerosol generation chamber 13, controller 14, online laser particle size analyzer 15, The second Venturi tube 16 and an aerosol buffer tank 17 are composed; the air compressor 1 is a reciprocating compressor, which is provided with an exhaust port, and the pressure of the exhaust port is set at 0.1 MPa; the filter 2 is provided with It has an inlet and an outlet, and is filled with a filter medium, which is a HEPA filter made of non-woven fabric; the dryer 3 is provided with an inlet and an outlet, and is filled with a desiccant, and the desiccant is anhydrous calcium chloride; The air buffer tank 4 i...

Embodiment 2

[0019] In this embodiment, the pressure at the exhaust port of the air compressor 1 is set at 0.8 MPa, and the rest are consistent with Embodiment 1.

Embodiment 3

[0021] In this embodiment, the pressure at the exhaust port of the air compressor 1 is set at 0.5 MPa, and the rest are consistent with Embodiment 1.

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Abstract

The invention discloses a concentration adjustable salt particle aerosol generating system. The concentration adjustable salt particle aerosol generating system comprises an air compressor, a filter, a dryer, an air buffer tank, a first needle valve, a first air flow meter, an air heater, a first Venturi tube, a second needle valve, a second air flow meter, a salt solution storage tank, a metering pump, an aerosol generating chamber, a controller, an online laser particle analyzer, a second Venturi tube and an aerosol buffer tank. The air buffer tank is arranged, and then the dry clean air in the tank is conveyed into the Venturi tube and is mixed with a salt particle aerosol with higher mass concentration, so that the salt particle aerosol is diluted. The mass flow rate of a salt particle is calculated according to the mass concentration and the flow of a saturated salt solution pumped by the metering pump, and the diluting degree of the salt particle aerosol is controlled by adjusting the amount of diluted air, so that the concentration adjustable salt particle aerosol generating system is provided for the related scientific researches. The system has the advantage of convenient and accurate control of the concentration of the salt particle.

Description

technical field [0001] The invention relates to the field of aerosol generation, in particular to a salt particle aerosol generation system with adjustable concentration. Background technique [0002] Sulfur dioxide (SO2) emitted from industrial and agricultural production and living processes 2 ), nitrogen oxides (NOx) and ammonia (NH 3 ) The sulfate, nitrate and ammonium salt formed by chemical reaction are important components of atmospheric particulate pollutants. In the research field of controlling and eliminating atmospheric particle pollutants, there is an urgent need for an aerosol generating device capable of controlling the particle size of salt particles. The salt particle aerosol generated by the device can be used for scientific experimental research such as simulation, testing, evaluation, and inspection of the gas environment, especially for experimental research on the particle aerosol of sulfate, nitrate and ammonium salt. [0003] After the saturated br...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J13/00
CPCB01J13/0091Y02A50/20
Inventor 沈剑
Owner NINGBO UNIVERSITY OF TECHNOLOGY
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