工程纳米颗粒物气溶胶的制备方法及系统

doi:10.6040/j.issn.1672-3961.0.2022.004

Abstract

Abstract:

A carbon nanoparticle aerosol preparation system with adjustable flow rate and mass concentration was designed based on the atomization method of nanomaterial suspension. The clean air and carbon nanotube material dispersion were sprayed and mixed in a stainless steel atomizing chamber to obtain an unstable aerosol. With the embedded temperature control system, flow control system and mass concentration control system, the unstable aerosol could be heated at a constant temperature in expansion chamber. Then the unstable aerosol expanded rapidly and reached uniformity. A relatively stable and uniform nanoparticle aerosol flow was obtained by controlling the valve body with an adjustable opening. It was demonstrated by experiments that under the condition of ideal temperature control system, the maximum error between the flow rate and the set value was 9.312 mL/min, and the maximum error between the mass concentration and the set value was 0.206 mg/m³. Nanoparticle aerosol with stable flow and mass concentration was generated basically.

Key words: engineering nanoparticle, aerosol, preparation method, flow control, mass concentration control

CLC Number:

TB302.1

Yi HAN,Zhen XU,Tian GUAN,Yang CUI,Hui HU,Liming MA. Preparation method and system of engineering nanoparticle aerosol[J].Journal of Shandong University(Engineering Science), 2022, 52(3): 109-116.

Figures/Tables 16

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转速/(r·min^-1)	通信接口	长×宽×高/(mm×mm×mm)	电压/V	工作温度/℃	最大参考流量/(mL·min^-1)
0.1~100	RS485	232×141×149	90~260	0~40	270

工作温度/℃	标称电阻/Ω	长期稳定性/h	推荐工作电流/mA
-200~600	100	1000	0.5

Preparation method and system of engineering nanoparticle aerosol

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