As a key component in the clean air conditioning system, the daily maintenance of DOP supply air outlets is crucial for ensuring the cleanliness of the supply air and the operational efficiency of the system. The following are detailed key points for daily maintenance:
Cleaning work
Surface cleaning: Wipe the outer surface of the supply air outlet with a dry, lint-free cloth every week to remove dust and stains. If there are stubborn stains on the surface, you can dip a small amount of neutral cleaner and gently wipe it, then dry it with a clean lint-free cloth to avoid the residue of the cleaner affecting the quality of the air supply.
Filter cleaning: It is recommended that the primary filter be cleaned every 1-2 weeks. It can be taken out and blown from the reverse side with compressed air to remove the dust on the surface. If the filter is severely contaminated, it can be rinsed with clean water (the water temperature should not exceed 40℃), dried, and then reinstalled. It should be noted that one should not use irritating cleaning agents to clean the filter to avoid damaging the filter material.
Inspection and tightening
Regular inspection: Check the installation firmness of the supply air outlet every month to see if there is any loosening. At the same time, check the sealing performance of the connection between the supply air outlet and the air duct. If it is found that the sealing rubber strip is aged, damaged, or the connection is not tight, the sealing rubber strip should be replaced in time or resealed to prevent air leakage and affect the cleanliness effect.
Component inspection: Inspect the regulating devices of the supply air outlet, such as louvers and air volume regulating valves, to ensure they can be flexibly adjusted without any jamming. If any malfunction of the regulating device is found, it should be repaired or replaced promptly.
Filter replacement
Primary filter: When the filter shows obvious damage, the air volume still drops significantly after cleaning, or the usage time reaches 3 months, the primary filter should be replaced promptly. When replacing, a filter of the same model and specification as the original one should be selected. During installation, ensure that the filter is well sealed with the frame to prevent unfiltered air from entering the clean area.
High-efficiency filters: The replacement cycle of high-efficiency filters is generally 1 to 2 years, which can be determined based on the actual operation conditions and test results. When the resistance of the high-efficiency filter reaches twice the initial resistance or when it is damaged or leaks, it must be replaced immediately. When replacing high-efficiency filters, it should be done in a clean environment to prevent the filters from being contaminated. During the installation process, it is necessary to ensure that the sealing performance of the filters meets the requirements.
Disinfection treatment
In places with high cleanliness requirements (such as hospital operating rooms, biological laboratories, etc.), the supply air outlets should be disinfected once every quarter. Disinfection can be carried out by wiping. Use a disinfectant that meets the requirements (such as 75% alcohol) to wipe the inner surface of the air supply outlet, the filter frame, etc. After disinfection, wait for the disinfectant to completely evaporate before putting it back into use.
Records and Archiving
Establish a maintenance record file for DOP supply air outlets, detailing the time, content, model, and quantity of replaced components, etc., of each maintenance. By analyzing the maintenance records, the operational status of the supply air outlets can be grasped, and the maintenance cycle can be reasonably arranged to ensure that the supply air outlets are always in good working condition.
