Selection of high-efficiency filters with and without partitions
Jul 28,2022
The high efficiency air filter can be divided into: high efficiency filter with separator and high efficiency filter without separator.
1, the separator high efficiency filter is made of ultrafine glass fiber as filter material, plywood paper, aluminum platinum as partition, and wood frame or aluminum alloy frame glue, because the production is relatively simple, inexpensive, widely used in clean workshop.
2, no partition high efficiency filter is made of ultrafine glass fiber filter material, hot melt adhesive separator, and all kinds of frame assembly, the outer frame is beautiful, compared with the partition high efficiency filter, under the same air volume, with small size, light weight, compact structure, reliable performance and other advantages.
Dimensions with and without partitions:
Why high efficiency air filters have actual size and nominal size, because the nominal size is a filter that includes the outer frame and the filter material, and the actual size is generally removed from the outer frame, only the width, height, depth and the area of the filter material are calculated.
There is a separator filter generally 150mm, 220mm two kinds of thickness. No partition filter commonly used: 50mm, 69mm, 90mm, compared to the volume, no partition filter is lighter and thinner!
Production process with and without partition:
1, the diaphragm high efficiency air filter manufacturing process is relatively simple, but the shortcomings are also very obvious, the resistance is large, the dust content is low, the volume is large, the production efficiency is low, the cost performance is low, the quality of the whole high efficiency air filter industry different manufacturers is uneven, it is difficult to unified examination and management.
2, and no partition high efficiency air filter generally requires the use of automatic digital folding machine, high production equipment requirements, high production efficiency, low resistance, large dust content, mass production cost-effective, so it will gradually replace the partition high efficiency air filter, become the mainstream of the purification market.
Advantages and disadvantages of partitions and no partitions:
There are partitions and high efficiency, and aluminum foil and paper are used to fold the shape of filter separator to form an air channel. Dividers are made of high quality kraft paper, hot roll forming or offset paper as dividers. More double-sided coated paper is used as a separator, the main purpose is to prevent the separator from shrinking under the influence of cold, hot, dry and wet, thus emitting particles.
However, according to the experience of the industry over the years, when the temperature and humidity change, this partition paper may have larger particles, resulting in unqualified cleanliness test of the dust-free workshop. Suitable for low level non-unidirectional flow projects with various purification equipment and clean workshops.
For places with high cleanliness requirements, customers should be recommended to use high efficiency air filters without partitions. The current A-level clean room generally uses A baffleless high efficiency filter, and the FFU is also configured with a baffleless high efficiency filter. Compared with the diaphragm high efficiency filter, under the same air volume, it has the advantages of small size, light weight, compact structure, reliable performance, easy installation, stable efficiency, uniform wind speed and so on.
The highly efficient design without partitions can achieve maximum efficiency with minimum resistance, thus reducing operating costs, in particular, the design of hot melt adhesive can ensure the same folding spacing, ensure the optimal airflow through, while achieving a high dust content, extend the service life, and make full use of the filter material over the entire depth of the filter.
In addition, compared with rectangular channels with baffle filters, V-shaped channels without baffle filters further improve the uniformity of dust and extend the service life of the filter. Diaphragmless filters for ventilation avoid the use of metal parts, are easy to dispose of, and meet increasingly stringent environmental requirements.
In addition to some special occasions with high temperature resistance and high safety requirements, no baffle filter can replace the baffle filter.
Contact Us
E-mail :
745380858@qq.com
Phone/Wechat：
+86-18631925220
Address：
East side of Wuzhishan Road, south side of Hanjiang Street, Qinghe County, Xingtai City, Hebei Province,China.
Company address:
East side of Wuzhishan Road, south side of Hanjiang Street, Qinghe County, Xingtai City, Hebei Province,China.
E-email Us：
Call Us On：
We own a professional R&D team to design different kinds of filters according to customers’requirement or samples. Looking forward to your enquiring
Services
SEO Technical support: www.300.cn