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Chì sò e caratteristiche di u filtru d'aria di borsa di media efficienza F9?

Time: 2022-07-11

Medium efficiency filter belongs to F series filter in air filter. F series medium efficiency air filter is divided into two kinds of bag type and non-bag type, including F5, F6, F7, F8, F9 in bag type and FB (plate type medium efficiency filter), FS (partition type medium efficiency filter), FV (combined medium efficiency filter) in non-bag type.

Scelta di materiale.

SFFILTECH medium efficiency filter, the outer frame is high quality galvanized steel or aluminum profile, the filter material is made of extremely delicate glass fiber, and the material can be customized according to customer requirements.

The filtration principle of F9 medium efficiency bag air filter:


The dust particles in the air, with airflow for inertial motion or irregular Brownian motion or by the action of some field force and move, when the particle movement hit other objects, so that the particles stick to the surface of the fiber. The dust that enters the filter media of medium efficiency bag air filter has more chances of hitting the media, and will be stuck when it hits the media. Smaller dust collision will be bonded to each other to form larger particles and settle, the concentration of dust particles in the air is relatively stable.

2. Inertia and diffusion

Dust in the airflow for inertial motion, when encountering the arrangement of chaotic fibers, the airflow changes direction, particles due to inertia deviation, hit the fiber and be bonded. The larger the particles are, the easier they are to hit and the better the effect. Small particles of dust for irregular Brownian motion. The smaller the particles, the more violent the irregular motion, the more chances to hit the obstacle, and the better the filtration effect will be. Air particles less than 0.1 micron mainly do Brownian motion, small particles, good filtration effect. Particles larger than 0.3 microns mainly do inertia motion, the larger the particles, the higher the efficiency. Diffusion and inertia are not obvious to the particles are the most difficult to filter out. When measuring the performance of the medium efficiency bag air filter, people often specify the measurement of the most difficult to measure the dust efficiency value.

3. Electrostatic effect

For some reason, fibers and particles may be charged with electrostatic effect. With electrostatic filter material filtration effect can be significantly improved. The reason: static electricity makes the dust change its trajectory and hit obstacles, and static electricity makes the dust stick more firmly on the media.Materials that can carry static electricity for a long time are also called "electret" materials. When the material is electrostatically charged, the resistance remains the same and the filtration effect is significantly improved. Static electricity does not play a decisive role in the filtration effect, but only plays an auxiliary role.

4. Chemical filtration

Chemical filter mainly has selective adsorption of harmful gas molecules. Activated carbon material has a large number of invisible micropores and a large adsorption area. In the activated carbon of the size of a grain of rice, the area inside the micropore is more than ten square meters.After contacting the activated carbon, the free molecules coalesce into liquid in the micropores due to the capillary principle and stay in the micropores, some of which are integrated with the material. The adsorption without obvious chemical reaction is called physical adsorption. Some of the activated carbon is treated, and the adsorbed particles react with the material to produce solid substances or harmless gases, which is called wairology adsorption. The adsorption capacity of the activated carbon material is weakened during use, and when it is weakened to a certain level, the filter will be scrapped. If the adsorption is only physical, heating or water vapor fuming can make the harmful gas out of the activated carbon, so that the activated carbon regeneration.

SFFILTECH F9 medium efficiency bag air filter is made of high quality galvanized frame or aluminum alloy frame, and the filter material of F9 medium efficiency bag air filter is glass fiber and non-woven fabric. It adopts ultrasonic stitching technology, internal drawing technology, etc. The F9 medium efficiency bag air filter we offer is produced with materials that meet international standards. It is suitable for intermediate filtration in pharmaceutical, electronic, food, hospital, cosmetic, semiconductor, precision machinery, automotive and other industries.

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