Working principle of chemical filter
Release time:
2020-10-21
The chemical filter must be well known, then you knowchemical filterToday, let me introduce you to the working principle of chemical filters. First of all, inertial and diffusion particles move in the airflow. When the fibers are arranged in disorder, the direction of the air flow changes, and the particles are stuck due to inertial deviation and hit the fibers.
Small particles of dust move irregularly with Brownian motion. The smaller the particles, the greater the probability of hitting obstacles, and the better the filtering effect of the high efficiency filter. The particles less than 0.1 microns in the air are mainly Brownian motion, the particles are small, and the high efficiency filter has a good filtering effect.
The greater the inertia of the particle, the greater the inertia of the particle. Diffusion and inertia are not obvious. When measuring the performance of high-efficiency filters, people often specify the most difficult value of dust efficiency. The dust particles in the air move with the airflow in the form of inertial motion or random Brownian motion under a certain force field.
As the particles move and collide with other objects, van der Waals forces (forces between molecules, between clusters of molecules) cause the particles to adhere to the fiber surface. The dust entering the filter medium has a greater chance of impacting the medium, and will get stuck when colliding with the medium, and the smaller dust will collide with each other to form larger particles and settle. The concentration of dust particles in the air is relatively stable. That's why the interior and walls fade. It is wrong to treat fibrous filters like duckweed.
chemical filtrationchemical filterMainly has the selective adsorption of harmful gas molecules. There are a large number of invisible micropores in the activated carbon material, which has a large adsorption area. In the rice grain grade activated carbon, the internal area of the micropores is greater than 10 square meters. After contact with the activated carbon, the free molecules condense into liquid in the pores. Due to the capillary principle, some molecules stay in the pores, and some molecules bind to the material.
Some of the activated carbon treatment, in the process of using activated carbon, the adsorption capacity of the material is constantly weakened.chemical filterWhen it weakens to a certain extent, the filter will be reported. If it is only physical adsorption, the harmful gas can be separated from the activated carbon by heating, and the activated carbon can be regenerated.
The filtering effect of the electrostatic filter material is obviously improved. Cause: Static electricity changes the movement of dust, hitting an obstacle. Static electricity makes the dust stick to the medium more firmly. Materials that can carry static electricity for a long time are also called electrets. The results show that under the action of static electricity, the resistance of the material remains unchanged, and the filtering effect of the high-efficiency filter will be significantly improved.
The static electricity does not play a decisive role in the filtering effect, but only plays an auxiliary role. According to experience, choose a filter with a large filtering area. Test the high efficiency air chemical filter one by one. Select the filter with small initial resistance under the same air volume. Selection of general size chemical filters
Latest News
What is the role of chemical filters?
2023-01-11
Basic overview of chemical filters
2023-01-03
Yantair Co.,Ltd.
-Address: No.3 Baoyuan Road,Laishan District,Yantai City
-Zip Code: 264003
-Tel: 086-535-6715398
-Email: helen.sun@yantair.com
-Fax: 086-535-6715566
-Website: http://www.yantair.com
SAF Coolest v1.3.1.2 设置面板 UDUSX-ZHHP-VVSAE-ZXQ
无数据提示
Sorry, the current column is being updated, please look forward to it!
You can view other columns or returnHome Page