The service life of paper frame primary filters is influenced by multiple factors and there is no fixed standard duration. It usually fluctuates between 1 and 6 months. The specific duration can be determined by considering the following key factors:
I. Core Factors Affecting Service Life
Environmental dust content
This is the most significant influencing factor. In environments with high dust concentrations (such as near construction sites, textile workshops, and heavy industrial plant areas), filters will accumulate dust rapidly and may need to be replaced every 1 to 2 months.
In environments with higher cleanliness levels (such as office buildings and hotels), the service life can be extended to 3 to 6 months.
Air volume and wind speed
The higher the filtration air velocity and the greater the ventilation volume, the higher the frequency and intensity of contact between the particulate matter in the air and the filter material, the faster the clogging speed of the filter material and the shorter its service life.
Conversely, in systems with low air velocity and small air volume, the service life of the filter is relatively longer.
Filter material quality and structure
High-quality filter materials such as glass fiber and non-woven fabric have a greater dust-holding capacity, and the paper frames have better sealing performance and stiffness, which can reduce premature failure caused by structural deformation and have a relatively longer service life.
Poor-quality filter materials may have their service life shortened due to fiber shedding or a rapid increase in resistance.
Timing for maintenance and replacement
If not replaced in time, the resistance of the filter will exceed the design limit (usually 2 to 3 times the initial resistance), which not only affects the ventilation efficiency but may also cause damage to the filter material due to excessive wind pressure, polluting the subsequent system.
Ii. Practical Standards for judging replacement
Resistance monitoring: The pressure difference before and after the filter is monitored by a differential pressure gauge. When the resistance reaches more than twice the initial resistance, it is recommended to replace it (the initial resistance is usually 5-15Pa, for specific details, refer to the product parameters).
Visual inspection: If the surface of the filter material is obviously covered with dust, turns black, or shows signs of damage or deformation, it should be replaced in a timely manner even if the resistance limit has not been reached.
الملخص
The service life of the paper frame primary filter needs to be judged in combination with the actual usage environment and operating status. Regular inspection (such as 1-2 times a month) is the key to ensuring its effective operation. In regular office or commercial environments, it is relatively common to replace it every 3 to 6 months. In highly polluted environments, it should be shortened to 1-2 months to avoid affecting the overall efficiency of the filtration system.
I. Core Factors Affecting Service Life
Environmental dust content
This is the most significant influencing factor. In environments with high dust concentrations (such as near construction sites, textile workshops, and heavy industrial plant areas), filters will accumulate dust rapidly and may need to be replaced every 1 to 2 months.
In environments with higher cleanliness levels (such as office buildings and hotels), the service life can be extended to 3 to 6 months.
Air volume and wind speed
The higher the filtration air velocity and the greater the ventilation volume, the higher the frequency and intensity of contact between the particulate matter in the air and the filter material, the faster the clogging speed of the filter material and the shorter its service life.
Conversely, in systems with low air velocity and small air volume, the service life of the filter is relatively longer.
Filter material quality and structure
High-quality filter materials such as glass fiber and non-woven fabric have a greater dust-holding capacity, and the paper frames have better sealing performance and stiffness, which can reduce premature failure caused by structural deformation and have a relatively longer service life.
Poor-quality filter materials may have their service life shortened due to fiber shedding or a rapid increase in resistance.
Timing for maintenance and replacement
If not replaced in time, the resistance of the filter will exceed the design limit (usually 2 to 3 times the initial resistance), which not only affects the ventilation efficiency but may also cause damage to the filter material due to excessive wind pressure, polluting the subsequent system.
Ii. Practical Standards for judging replacement
Resistance monitoring: The pressure difference before and after the filter is monitored by a differential pressure gauge. When the resistance reaches more than twice the initial resistance, it is recommended to replace it (the initial resistance is usually 5-15Pa, for specific details, refer to the product parameters).
Visual inspection: If the surface of the filter material is obviously covered with dust, turns black, or shows signs of damage or deformation, it should be replaced in a timely manner even if the resistance limit has not been reached.
الملخص
The service life of the paper frame primary filter needs to be judged in combination with the actual usage environment and operating status. Regular inspection (such as 1-2 times a month) is the key to ensuring its effective operation. In regular office or commercial environments, it is relatively common to replace it every 3 to 6 months. In highly polluted environments, it should be shortened to 1-2 months to avoid affecting the overall efficiency of the filtration system.
