filter absorberAs a key equipment for ensuring air quality, various malfunctions may occur during use due to environmental factors, improper operation, or maintenance. The following is a detailed summary of common problems and precautions to help users identify and prevent risks in a timely manner:

1、 Decreased filtration efficiency

Filter clogged

Reason: Failure to replace the filter element for a long time, or inhaling a large amount of dust, oil, and other particulate matter, resulting in clogged pores in the filter material.

Performance: The pressure difference between the inlet and outlet of the equipment increases, the air volume decreases, and the filtered air quality does not meet the standard.

Solution: Regularly check the differential pressure gauge and replace the filter element according to the manufacturer's recommendations (usually every 6-12 months, depending on the usage environment).

Filter element damaged

Reason: Filter material aging, chemical corrosion, or mechanical impact (such as strong wind pressure) can cause the filter element to crack.

Performance: If there is still odor or particulate matter in the filtered air, the detection equipment will sound an alarm.

Solution: Immediately stop the machine and replace the filter element to avoid the leakage of harmful substances; Choose corrosion-resistant and impact resistant filter materials (such as glass fiber+activated carbon composite filter cartridges).

Activated carbon failure

Reason: Activated carbon adsorption becomes saturated (such as long-term treatment of high concentration toxic gases) or becomes ineffective after being exposed to moisture.

Performance: The removal rate of volatile organic compounds (VOCs), toxic gases, etc. has significantly decreased.

Solution: Regularly check the adsorption capacity of activated carbon and replace it if necessary; Keep the equipment dry and avoid using it in damp environments.

2、 Abnormal device performance

Insufficient air volume

Reason: Fan malfunction (such as motor damage, impeller dust accumulation), pipeline blockage or filter blockage.

Performance: The operating noise of the equipment increases, but the air volume at the air outlet significantly decreases.

Solution: Check the fan motor and clean the dust accumulation on the impeller; Check if there is any air leakage or blockage at the pipeline connection.

pressure difference anomaly

Reason: Blockage of filter element leads to high pressure difference, or poor sealing of equipment leads to low pressure difference.

Performance: The reading on the differential pressure gauge exceeds the normal range (usually 2-3 times the initial differential pressure).

Solution: Clean or replace the filter element; Check if the sealing strip of the equipment is aging and re tighten the connecting components.

electrical fault

Reason: Aging of power supply circuit, moisture damage to control board, or sensor malfunction.

Performance: The device fails to start, trips frequently, or displays data errors.

Solution: Check the power circuit and replace aging components; Dry the control board or replace the sensor.

3、 Poor environmental adaptability

High or low temperature effects

Reason: The operating temperature of the equipment exceeds the design range (such as -20 ℃~70 ℃), causing deformation of the filter material or failure of the activated carbon.

Performance: Brittle or cracked filter element, or decreased adsorption capacity of activated carbon.

Solution: Choose filter materials with a wider temperature resistance range (such as ceramic fiber filter cartridges); Install preheating or cooling devices in extreme temperature environments.

High humidity environment

Reason: Excessive humidity can cause the filter material to become damp, clump, or the activated carbon to become ineffective after adsorbing water vapor.

Performance: The weight of the filter element increases, the filtration efficiency decreases, and even mold grows.

Solution: Install a dehumidification device to keep the equipment dry; Choose waterproof filter materials (such as PTFE membrane filter cartridges).

chemical corrosion

Reason: Long term exposure to strong acids, alkalis, or organic solvents can cause corrosion of filter materials or equipment casings.

Performance: discoloration and cracking of the filter element, and rusting of the equipment casing.

Solution: Choose corrosion-resistant materials (such as stainless steel casing, polytetrafluoroethylene filter material); Avoid contact with corrosive substances.

4、 Operation and maintenance issues

Improper installation

Reason: The equipment is tilted, the pipeline connection is not tight, or it was not installed according to the instructions.

Performance: Air leakage, abnormal vibration, or poor filtering effect.

Solution: Reinstall the equipment to ensure horizontal fixation; Check if the pipeline connections are sealed.

Insufficient maintenance

Reason: Failure to regularly clean equipment, replace filter cartridges, or inspect electrical components.

Performance: shortened equipment lifespan and increased failure rate.

Solution: Develop a maintenance plan and record the content of each maintenance; Establish a spare parts warehouse and replace vulnerable parts in a timely manner.

Overload operation

Reason: Long term processing of air exceeding the design air volume, or inhalation of high concentrations of harmful substances.

Performance: The filter element quickly clogs and the equipment frequently alarms.

Solution: Select the appropriate model of equipment based on actual needs; Avoid prolonged processing of high concentration pollutants.

5、 Special scenario issues

Special faults in civil air defense equipment

Reason: During wartime or emergency situations, equipment may be subjected to shock waves, vibrations, or chemical attacks.

Performance: Filter displacement, seal failure, or activated carbon breakage.

Solution: Regularly conduct combat readiness exercises and check the fixation of equipment; Choose impact resistant filter cartridges and sealing structures.

Particulate pollution in industrial environments

Reason: Metallurgical, chemical and other industries generate a large amount of metal dust or chemical particles.

Performance: The surface of the filter element forms scale, resulting in a sharp decrease in filtration efficiency.

Solution: Install a pre filtration device (such as a cyclone separator) to reduce the entry of large particles; Choose wear-resistant filter materials (such as metal fiber filter cartridges).

6、 Prevention and Response Suggestions

Regular testing: Use tools such as differential pressure gauges and gas detectors to monitor the operating status of the equipment.

Spare parts management: Reserve vulnerable parts such as filter cartridges and sealing strips to avoid downtime caused by missing parts.

Train operators to ensure proper use of equipment and avoid malfunctions caused by misoperation.

Choose reliable brands: prioritize purchasing products that have passed ISO, CE, and other certifications to ensure quality and after-sales service.