Internal Dynamic

The key to improving the efficiency of an industrial air filtration system lies in the combination of scientific filter media combination, reasonable system design, and strict operation and maintenance.

1. Scientific Matching of Filter Media and Filtration Class

Filter media is the core of air filtration and must be selected accurately based on pollutant types and cleanliness requirements.

• Multi-stage filtration combination: Adopt a multi-stage filtration structure of "primary + intermediate + high-efficiency (HEPA/ULPA)". The primary filter removes large particles (such as dust and hair) to protect high-precision filter media at the downstream and prevent premature clogging.
• Filter media characteristic adaptation: Choose dedicated filter media for specific pollutants. For example, oil-resistant filter media is used for air containing oil mist, and chemical adsorption filter media (such as activated carbon and molecular sieves) is used for corrosive gases.
• Filtration class correspondence: Select filter media with corresponding efficiency according to workshop cleanliness standards (such as ISO Class 8 and ISO Class 5). For instance, cleanrooms in the electronics industry require ULPA (99.999%@0.12μm) class filter media.

2. Optimization of System Structure and Airflow Design

A reasonable system design ensures uniform filtration effect and reduces airflow dead zones.

• Reasonable airflow organization: Design air supply and return paths based on workshop layout to avoid short-circuiting of clean air and ensure that air in all areas undergoes filtration circulation.
• Adaptable layout of filtration units: Use large dust-holding capacity units such as "V-bank filters" or "bag filters" in large spaces. For small spaces or local areas with high cleanliness requirements (such as above equipment), configure small high-efficiency filtration units to improve local cleanliness.
• Fan and air pressure matching: Select fans with air volume and pressure matching the system resistance. This avoids insufficient air pressure (which prevents filter media from functioning fully) or excessive air pressure (which causes energy waste).

3. Strengthening of Operation Monitoring and Maintenance Management

Timely monitoring and maintenance prevent system efficiency degradation and extend the service life of filter media.

• Real-time parameter monitoring: Install differential pressure sensors and dust concentration detectors to monitor the differential pressure across filter media (to determine clogging) and the cleanliness of outlet air in real time. Issue timely warnings when standards are exceeded.
• Regular maintenance and cleaning: Develop maintenance cycles based on filter media types. Primary and intermediate filter media can be cleaned (e.g., metal mesh filter media) or replaced regularly. High-efficiency filter media must be replaced immediately when the differential pressure threshold is reached to prevent pollutant penetration after failure.
• Standardized maintenance operations: Implement strict clean operations when replacing filter media to avoid contamination of new filter media by hands or tools. Ensure tight sealing during installation to prevent air leakage from the edges of filter media.