Trapping efficiency and resistance detection device for filter membrane/filter cartridge

Abstract

The invention relates to the field of detection of filter membranes, and particularly relates to a trapping efficiency and resistance detection device for a filter membrane / filter cartridge. The trapping efficiency and resistance detection device comprises a main shell, wherein a mixing chamber part, a filter membrane / filter cartridge clamp pressing part, a clamp part, a testing part, a sampling part and a controlling part; the mixing chamber part is connected with the testing part; the filter membrane / filter cartridge clamp pressing part is connected with the clamp part; the testing part is connected with the sampling part; the mixing chamber part comprises a mixing chamber, a trapping efficiency detection solenoid valve and a resistance detection solenoid valve; two inlets, including anair inlet and an aerosol inlet, are formed in the mixing chamber; a high-efficient filter I is arranged at the air inlet; the trapping efficiency detection solenoid valve is connected with an outlet of the mixing chamber part; the resistance detection solenoid valve is connected with a high-efficient filter II; the resistance detection solenoid valve is connected in parallel with the trapping efficiency detection solenoid valve. The trapping efficiency and resistance detection device has the advantages of simpleness in structure and low cost, and moreover, the detection precision, the operation security and the service efficiency of detection personnel are greatly improved.

Description

technical field [0001] The invention relates to the field of filter membrane detection, in particular to a filter membrane / filter cartridge collection efficiency and resistance detection device. Background technique [0002] The filter membrane (cartridge) capture efficiency and resistance detection device mainly refer to "ASTM D2986-95A Air Test Evaluation Standard for Monodisperse DOP (Dioctyl Phthalate) Smoke Test" and "GB / T 6165-2008 High-efficiency air filter performance test method efficiency and resistance" and other related standards and methods. [0003] At present, domestic collection efficiency detection devices generally belong to filter material detection, there is no instrument specifically for filter membrane (filter cartridge) filtration efficiency detection, and the cost is relatively high; most domestic manufacturers use dust particle counters for aerosol concentration detection, and its detection accuracy The accuracy and accuracy are greatly affected by ...

AI Technical Summary

Problems solved by technology

[0003] At present, domestic collection efficiency detection devices generally belong to filter material detection, there is no instrument specifically for filter membrane (filter cartridge) filtration efficiency detection, and the cost is relatively high; most domestic manufacturers use dust particle counters for aerosol concentration detection, and its detection accuracy The accuracy and accuracy are greatly affected by the performance of the dust particle counter instrument itself, which may easily cause inaccurate aerosol concentration measurement and ultimately affect the test results; and some manufacturers have external air compressors, which are large in size and noise, and are not suitable for long-term use. Indoor testing

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