Detachable aerosol sampling device and sampling method
A sampling device, aerosol technology, applied in sampling devices and other directions
Pending Publication Date: 2021-09-14
北京汇丰隆经济技术开发有限公司
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Problems solved by technology
[0004] In order to optimize the existing sampling technology, the present invention provides a detachable aerosol sampling device and sampling method, which is a sampling method based on solid impact, and specifically solves problems encountered in actual use
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[0034] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0035] like figure 1 As shown, the present invention provides a detachable aerosol sampling device, comprising a casing 1, a sampling head 2, a padlock 3, a bracket 4 and a sampling bottle assembly 5, and a switch 11 is provided on the front surface of the casing 1 , the bracket 4 is fixed on the casing 1 by fasteners, the sampling head 2 forms a detachable sealing connection with the outer end of the bracket 4 through the paddle lock 3, and the sampling bottle assembly 5 is connected with the outer end of the bracket 4 The inner end of the bracket 4 forms a detachable sealed connection; one of the functions of the casing 1 is to prevent the sampling medium in the sampling bottle assembly 5 from communicating with the ambient gas.
[0036] like figure 2 , the sampling head 2 includes a sampling head cover 21, the sampling head cover 21 is provided ...
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The invention provides a detachable aerosol sampling device and a sampling method. The detachable aerosol sampling device comprises a sampling head, a bracket and a sampling bottle assembly, wherein the sampling head is detachably connected with one end of the bracket in a sealed mode, the sampling bottle assembly is detachably connected with the other end of the bracket in a sealed mode, a flow guide plate and a barrier plate are arranged in the sampling head and / or the bracket so as to separate large-particle-size particles and small-particle-size particles in sampling gas entering from the sampling head, a collector is arranged in the bracket, the small-particle-size particles enter the collector along with the sampling gas and are accelerated, the sampling bottle assembly is filled with a sampling medium and is provided with a lower sampling pipe, and the sampling gas accelerated by the collector can enter the lower sampling pipe. According to the invention, based on a solid impact sampling mode, the acquisition structure is optimized, and the acquisition efficiency of 0.5-5 microns is improved; and a detachable mounting structure is adopted, so that mounting is convenient, and cross contamination in two adjacent aerosol collection processes is avoided.
Description
technical field [0001] The invention relates to the field of biological aerosol sampling, in particular to a detachable aerosol sampling device. Background technique [0002] Bioaerosol is a colloidal system formed by a group of small and simple single-celled organisms suspended in the air. Bioaerosol has six characteristics that make it profoundly affect human daily life. Since the outbreak of the COVID-19 novel coronavirus in 2019, countries around the world have strengthened the monitoring and research of aerosol particles in the air. In order to meet the needs of monitoring and research, efficient bioaerosol enrichment and sampling technology is particularly critical. [0003] The more common samplers on the market are mainly the sampling methods of wet wall cyclone and solid impact; after continuous improvement and optimization in recent years, the wet wall cyclone sampler has been developed to be light and portable, but it is aimed at tiny aerosols of 0.5-5 microns H...
Claims
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CPCG01N1/24
Inventor 刘毅刘强刘航张晓清宁海波
Owner 北京汇丰隆经济技术开发有限公司