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How to maintain the gel seal bottom-detachable FFU used in the pharmaceutical industry?
How to maintain the gel seal bottom-detachable FFU used in the pharmaceutical industry?The maintenance points of the gel seal bottom-detachable FFU used in the pharmaceutical industry are as follows:1. Daily maintenance: - Cleaning and inspection: - Before work every day, check the appearance of the FFU to see if there is dust, stains, scratches, or damage. If there is obvious dust or stains, use a clean, lint-free soft cloth to wipe it gently and avoid using rough or sharp tools to prevent scratching the FFU shell. - Check the liquid tank part to ensure that the sealing liquid level in the liquid tank is normal and there is no leakage. If the sealing liquid is insufficient, it should be added in time; if a leak is found, the leak point should be found and repaired, and the contaminated sealing liquid should be replaced at the same time. - Fan operation status monitoring: - Listen to the sound of the fan running to determine whether there is abnormal noise or vibration. Under normal circumstances, the fan should run smoothly and the sound should be uniform. If abnormal noise or vibration occurs, it may be caused by the impeller imbalance, bearing wear, or motor failure of the fan, and the machine should be stopped immediately for inspection. - Check whether the fan speed is normal. You can measure it through the speed monitoring device of FFU or use a speed measuring instrument. If the speed is abnormal, you need to check the power supply of the motor, the control circuit, and the mechanical parts of the fan to find out the problem and repair it in time. - Filter inspection: - Check whether the surface of the filter is blocked or damaged. The pharmaceutical industry has extremely high requirements for air cleanliness. The blockage of the filter will affect the filtering effect of FFU, so the filter needs to be cleaned or replaced regularly. For the primary filter, it can be cleaned once a week or every two weeks according to the usage; for the high-efficiency filter, it is generally recommended to replace it every 1-3 months. The specific replacement cycle can be adjusted according to the actual use environment and filtering effect. - Check whether the filter is installed firmly and ensure that the filter and the frame of FFU are well sealed and there is no air leakage. If the filter is found to be loose or leaking, it should be reinstalled or replaced in time. 2. Regular maintenance: - Electrical system inspection: - Regularly check the electrical connections of FFU, including power cord, control cord, etc., to check whether there is looseness, poor contact, or aging. If there is a problem, tighten the terminal block or replace the aged wire in time. - Check the insulation performance of the motor, use an insulation resistance tester to measure the insulation resistance of the motor, and ensure that its resistance meets the requirements. If the insulation resistance is too low, the motor may be damp or the insulation layer is damaged, and it needs to be dried or replaced. - Check and test the control circuit of the FFU to ensure that the control functions are normal, such as speed regulation, start and stop functions, etc. At the same time, check whether the indicator lights and buttons on the control panel are working properly. - Mechanical parts maintenance: - Clean and check the impeller of the fan regularly, remove dust and debris on the impeller, and check whether the impeller is deformed, worn, or corroded. If the impeller is seriously damaged, it should be replaced in time to ensure the performance of the fan. - Check whether the frame structure of the FFU is firm and whether there are any problems such as deformation and cracking. For welding parts, check whether there is any cracking of the weld; for bolted parts, check whether the bolts are loose. If there is a problem with the frame structure, it should be repaired or reinforced in time. - Maintain the liquid tank structure of the liquid tank detachable FFU, clean the liquid tank regularly, and remove the dirt and sediment in the liquid tank. At the same time, check the sealing performance of the liquid tank to ensure that the sealing between the liquid tank and the FFU frame is good to prevent leakage of the sealing liquid. - Calibration and testing: - Regularly calibrate and test the wind speed of the FFU, use an anemometer to measure the wind speed of the FFU, and ensure that the wind speed meets the design requirements. If the wind speed deviation is large, check the operating status of the fan, the blockage of the filter, the smoothness of the air duct, etc., find out the problem, and make adjustments. - Test the air purification effect of the FFU, use professional air detection instruments to detect the air quality at the FFU outlet, and ensure that it can meet the cleanliness requirements of the pharmaceutical industry. If the purification effect is not good, check the performance of the filter, the filtration efficiency of the fan, and the overall sealing performance of the FFU, and take corresponding measures to improve it in time. 3. Special situation maintenance: - Fault handling: When the FFU fails, it should be shut down in time for investigation and repair. First, determine the possible causes of the fault according to the fault phenomenon, such as fan failure, electrical failure, filter blockage, etc. Then, handle it according to the corresponding maintenance method. For some complex faults, it is recommended to contact professional maintenance personnel for repair. - Shutdown maintenance: If the FFU is shut down for a long time, it should be thoroughly cleaned and maintained before the shutdown, and then the FFU should be placed in a dry and ventilated environment, and protective measures should be taken to avoid dust, moisture, etc. from damaging the FFU. When reactivating the FFU, a comprehensive inspection and test should be carried out to ensure its normal performance. |
