Mask particulate matter filtration efficiency and respiratory resistance detecting device

Abstract

The invention relates to a mask particulate matter filtration efficiency and respiratory resistance detecting device. The device comprises a self-purification detecting chamber, a respiratory resistance detecting module, an aerosol module, an upstream photometer, a downstream photometer, a sinusoid respiratory simulator and a control module; the respiratory resistance detecting module, the aerosol module, the upstream photometer, the downstream photometer and the sinusoid respiratory simulator are communicated with the self-purification detecting chamber, and the control module controls operation of the overall device and comprises a filtration efficiency detecting control module, a respiratory resistance detecting control module, an aerosol concentration control module and a human sinusoid respiratory simulating control module. According to the scheme, a national head model and a respirator for simulating the human respiratory sinusoid are arranged, and aerosol with the specific concentration is controlled by the control module to be automatically generated; meanwhile, the two paths of high-precision photometers are adopted for sampling and detecting, and an original sodium flame detecting mode with the high equipment risk is abandoned; accordingly, the personal safety of experimenters is better guaranteed, the structure is simple, the cost is low, the intelligent degree is high, the detection precision and the operating efficiency are greatly improved, and the high application and popularization value is achieved.

Description

technical field [0001] The invention relates to a device for detecting particle filtration efficiency and respiratory resistance of a mask. Background technique [0002] The most important reference standard for the particle filtration efficiency and respiratory resistance detection device of masks is "GB / T32610-2016 Technical Requirements for Daily Protective Masks". At present, the domestic use is "GB / 2626-2006 respiratory protective equipment self-priming filter anti-particulate respirator", "GB / T6165-2008 high-efficiency air filter performance test method efficiency and resistance particle protection effect technical requirements and test methods" and other relevant standards and methods. [0003] At present, the sodium flame detection method is widely used in China. For example, the invention patent with the application number [200610113302.5] discloses a detection device for the filtration efficiency and resistance of masks, including a measurement device composed of ...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to propose a detection device for particle filtration efficiency and respiratory resistance of a mask, which is equipped with an international head model and simulated human The sinusoidal respirator has a simple structure design and a high degree of intelligence, which improves the safety and accuracy of detection operations and greatly improves the efficiency of detection personnel

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