The selection of air filters should be based on the performance requirements of the application, including primary, medium, and high-efficiency filters. The four key indicators for evaluating air filters are air filtration speed, filtration efficiency, filter resistance, and dust holding capacity. Choosing the appropriate filter requires considering these indicators to meet the needs of different scenarios. Proper configuration of filters can enhance filtration efficiency, extend equipment lifespan, and reduce operating costs.
Increasing the filter surface area effectively reduces filtration speed and resistance, thereby extending the filter's lifespan. Experience shows that increasing the filter area by 50% can extend the service life by 70%-80%. However, while increasing the filter area, the structure of the filter and the conditions at the installation site must also be considered. With the same cross-sectional area, a larger permissible rated air volume is preferable, as it allows the filter to operate at a lower rated air volume, improving efficiency and reducing resistance.
In air conditioning design, first determine the efficiency of the final stage filter, then choose the pre-filter accordingly. Efficiently matching the efficiencies of primary and medium-efficiency filters maximizes their optimal particle size range. The choice of pre-filter should consider the usage environment, spare parts costs, energy consumption, and maintenance expenses. Different efficiency grades of filters have varying minimum counting efficiencies for different particle sizes, requiring specific configurations based on actual needs. Additionally, comfort air conditioning filters should differ from those used in purification air systems, with different installation and leak prevention requirements.
Filter resistance consists of media resistance and structural resistance. As dust accumulates, resistance increases, and when it reaches a certain value, the filter must be replaced. The final resistance directly affects the filter’s lifespan, system air volume, and energy consumption, necessitating strict control, especially for filters below G4. Dust holding capacity is directly related to the filter's service life, with low-efficiency filters often showing an initial increase in efficiency followed by a decline. Most filters used in comfort central air conditioning systems are disposable, making cleaning impractical or uneconomical.
JinJue Filter Materials Company specializes in producing various types of primary, medium-efficiency bag filters, separatorless high-efficiency filters, HEPA filters, and air filter cartridges. Danze Technology provides free technical support, testing, installation, and after-sales maintenance services, offering comprehensive support and services to customers.
