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How should I maintain theSynthetic fiber bag filter?

Time: 2022-08-10

Synthetic fiber bag filter cleaning and replacement cycle.

1. Under the condition of rated air volume use, the filter should be replaced in 3 to 4 months.

2. When the resistance of the filter reaches 400 Pa or more, the filter must be replaced.

3. If the filter uses washable filter media, the filter media under replacement can be rinsed with water or a solution containing neutral detergent, dried, and then replaced; cleaning is allowed at most twice, that is, the filter must be replaced with a new one; if the dust concentration in the use environment is larger, this service life cycle will also be reduced.

Precautions for using synthetic fiber medium efficiencybagfilter.

Regularly check whether there is debris blockage on the inlet surface of the chemical fiber bag filter and whether there is damage on the surface of the filter media; if there are items blocking the surface, they should be removed; if the surface of the filter media is seriously damaged, it must be replaced with new filter media or a new filter to be reinstalled; when the filter is installed, ensure good sealing at the pressure edge with the frame to prevent air leakage; do not use heavy objects to hit the surface of the filter and do not pull the surface of the filter media with force; install the filter with a new bag. When installing the filter, the length of the filter bag should be perpendicular to the ground to ensure the filtration effect of air supply and increase the service life.

SFFILTECH introduces you more knowledge of air filter maintenance and servicing.

1. Before installation of all kinds of filters, it is not allowed to open the bags or packaging film; and store the filters according to the direction marked on the packaging box; in the process of handling, it should be taken and placed lightly to avoid violent vibration and collision.

2. For high-efficiency filter, the installation direction must be correct: when the combined filter with corrugated plate is installed vertically, the corrugated plate must be perpendicular to the ground; the connection between the filter and the frame in the vertical direction, leakage, deformation, breakage and leakage of glue are strictly prohibited, and the inner wall must be guaranteed to be clean and free of floating dust, oil, rust and debris after installation.

3. Inspection method: observation or white silk cloth wipe inspection.

4. Before the installation of high-efficiency filters, the clean room must be fully cleaned, wiped clean, purified air conditioning system internal dust accumulation, should be cleaned again, wipe clean, to achieve clean requirements. If the high efficiency filter is installed in the technical mezzanine or ceiling, the technical layer or ceiling should also be fully cleaned and wiped clean.

5. Transportation and storage of high-efficiency filters should be set aside in accordance with the direction of the manufacturer's logo. In the process of transportation, it should be taken lightly to prevent violent vibration and collision, and brutal loading and unloading is not allowed.

6. SFFILTECH reminds you that before installation of high efficiency filter, the package must be unpacked at the installation site for appearance inspection, including: whether the filter paper, sealant and frame are damaged; whether the edge length, diagonal and thickness dimensions meet the requirements; whether the frame has burrs and rust spots; whether there is a product certificate of conformity and whether the technical performance meets the design requirements. Then check in accordance with the methods specified in the national standards, qualified should be installed immediately.

7. Cleanliness level equal to and higher than 100 clean room with high-efficiency filter, leak detection should be carried out before installation, and meet the requirements of the regulations.

8. When installing high-efficiency filter, the arrow on the outer frame should be consistent with the direction of airflow; when it is installed vertically, the direction of the filter paper crease should be perpendicular to the ground.

9. When installing coarse-effect flat or folded filters, the galvanized mesh surface should be in the direction of the back side of the air outlet. When installing bag filter, the length direction of the filter bag should be perpendicular to the ground, and the direction of the filter bag should not be installed parallel to the ground.

10. Under normal use conditions, flat and folded coarse or medium-effect filters, generally replaced once in 1 to 2 months, the filter media can be soaked and rinsed with clean water containing detergent after replacement, and then dried and replaced; generally after 1 to 2 times of rinsing, the filter must be replaced with a new one to ensure the filtration efficiency.

11. For bag type coarse effect orsynthetic fiber medium effectbagfilter, under normal use conditions, generally use 3 to 4 months that should be replaced with a new one.

12. For the sub-high efficiency filter, under normal use conditions, generally use 5 to 6 months, should also be replaced.

13. For the above filters, if there is a differential pressure meter or differential pressure sensor before and after the filter, the coarse efficiency filter must be replaced when the differential pressure value is greater than 250Pa; for the medium efficiency filter, the differential pressure is greater than 330Pa and must be replaced; for the sub-high efficiency filter, the differential pressure value is greater than 400Pa and must be replaced, and the original filter cannot be reused.

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