er materials, etc.
Product performance evaluation for filter material R & D institutions, product quality monitoring for product manufacturers, and product performance verification for high-end users.
It’s suitable for different sizes and types of filtration materials, the raw material of sheet-form filter materials, high efficient filter materials to test the filtration performance.
The filter media filter performance testing services for third-party testing agencies, the special application of market-oriented product quality supervision for quality and technical supervision departments and environmental protection agencies.
It is applicable to test fabric filter material, membrane filter media, and the bag filter’s filter materials made of synthetic fiber filter material, glass fiber filter material, composite filter material, and other filter materials.
The test dust and particulate are dispersed into a constant concentration by compressed air in the dust generator and distributed evenly in the pipeline. Under the effect of electrostatic classifier and charge neutralization, the dust turns into monodispersed particles. On the other side of the tested filter material, the sucking pump produces a certain suction airstream, which draws the dust to attach into the tested filter material. Thus the operation situation of filter material under the influence of constant airstream and dust concentration is simulated. Trough monitoring the dust or particulate concentration and particle size distribution on both sides of the filter material, it will be able to quickly figure out the filtration efficiency of tested filter material and dust transmittance.
The aggregation of dust and particulate on the surface and inner of the tested filter material will lead to the increase of test pressure drop. The differential pressure transducer real-time detects the change of pressure drop on each side of the tested filter material. The filtration method of the air filter determines that the filtration efficiency of the filter material will be decreased due to the increase of the filtering energy consumption caused by inner dust aggregation on the filter material. Meanwhile, the filtration efficiency will also be subject to the influence of the particle impact, which causes the internal damage of the filter material leading to transmittance to increase and filtration efficiency to decline. The tested specimen’s life span is pre-evaluated by monitoring filtration efficiency-particle size distribution– pressure drop change curve. The particle size spectrometer can monitor the dust concentration as well as the dust particle size distribution and fractional filtration efficiency simultaneously, to evaluate the static dust removal efficiency in a specified time and the dynamic dust removal efficiency of filter material subject to the change of working condition during the whole life cycle.
