Detecting method for mask filtration efficiency and resistance

A detection device of mask filter efficiency and resistance pressure, relates to devices using sodium chloride gas dispersoid to detect the efficiency and resistance pressure of high efficacy mask filter used in insurance, medical care and so on. The device comprises of frog sprayer, electricity abs...

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Bibliographic Details
Main Authors ZHANG LISHENG, YE SUISHENG
Format Patent
LanguageChinese
English
Published 27.02.2008
Subjects
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
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Summary:A detection device of mask filter efficiency and resistance pressure, relates to devices using sodium chloride gas dispersoid to detect the efficiency and resistance pressure of high efficacy mask filter used in insurance, medical care and so on. The device comprises of frog sprayer, electricity absorber, impinger, mixed dryer, photoelectric measurement instrument composed by hydrogen flame burner, photoelectric converter and composed of measuring device, buffer box, corresponding triple-valve conversion valve and connecting pipelines. The components and connecting pipelines of this invention are reasonable arranged, it can monitor and control the relative humidity of the formed air containing sodium chloride gas dispersoid, make it always less than 60% during the measurement, ensure the reliability of value, the maximum filter efficiency is 99.9995% and the range of measured masks resistance could be 0 to 2000 Pa. The invention is simple in structure, easy to be operated and maintained, with small investment
Bibliography:Application Number: CN20061113302