一种多通道便携式在线尘埃粒子计数器校准装置的研究

A Study on a Multi-channel Portable Calibration Device of Online Particle Counter

在线尘埃粒子计数器校准设备受制于标准物质气溶胶化,需空压机提供高压气源动力,具有体积大、工作条件要求高等缺点。因此,本文根据JJF 1190-2008《在线尘埃粒子计数器》校准规范,研发了一种多通道便携式校准装置,并进行试验验证。结果表明:该装置的内置标准粒子发生气源无需空压机,且在通电后即可使用;四个发生通道可随意切换,无需更换装液瓶,便于现场开展校准工作。

The on-line dust particle counter calibration equipment is subject to the aerosol of the standard materi-al,and needs the air compressor to provide high pressure air source power,which has the disadvantages of large vol-ume and high working conditions.Therefore,according to JJF 1190-2008"On-line Dust Particle Counter"cali-bration specification,a multi-channel portable calibration device is developed and verified by experiments.The re-sults show that the built-in standard particle generating air source of the device does not need air compressor,and can be used after power;The four generation channels can be switched at will,without changing the liquid bottle,which is convenient for on-site calibration work.