German
French
Italian
Portuguese
Japanese
Korrean
Russian
Key points for daily maintenance of laminar flow workbench
Key points for daily maintenance of laminar flow workbench(I) Keep the table cleanAvoid unnecessary items on the table of the laminar flow workbench, because extra items will interfere with the clean airflow in the work area and affect the normal operation of the equipment. Keeping the table clean can ensure the smooth flow of clean air and create a stable high-cleanliness environment for experiments or operations. For example, when conducting microbiological experiments in the laboratory, if there are irrelevant items on the table, it may hinder the airflow from carrying away microbial particles, thereby affecting the accuracy of the experimental results. (II) Sterilization before use Before using the laminar flow workbench, the ultraviolet lamp should be turned on 30 minutes in advance to treat the microorganisms accumulated on the surface of the workbench in the work area. After 20 minutes, turn off the ultraviolet lamp and start the blower to achieve the sterilization effect. This can effectively kill the microorganisms in the work area and provide a sterile environment for subsequent experiments or operations. According to relevant studies, after ultraviolet light irradiation and blower treatment, the number of microorganisms in the work area can be greatly reduced, thereby improving the reliability of the experimental results. (III) Cleaning the external surface and glass door Cleaning the external surface and glass door of the equipment is an important part of daily maintenance. The cleaning method is: the work surface of the equipment, the inner wall surface of the operating area (excluding the uniform air net in the operating area), and the inner surface of the glass door should be wiped with 70% alcohol or diluted household bleach, and then wiped again with sterile water to remove residual chlorine. This ensures that the exterior and glass doors of the equipment remain clean and prevents dust and impurities from entering the working area and affecting the cleanliness of the equipment. (IV) Check the function of the equipment Regularly check the various functions of the equipment to ensure its normal operation. The inspection content includes but is not limited to the wind speed of the fan, the brightness of the ultraviolet lamp, the resistance of the filter, etc. If the equipment function is found to be abnormal, it should be repaired or replaced in time to ensure the normal use of the equipment. For example, when the fan speed decreases, the filter may be clogged and the filter needs to be replaced in time. (V) Filter replacement The filter is the core component of the laminar flow workbench, and the timing and method of its replacement are crucial. Generally speaking, after the primary filter has been used for 3-6 months, as the dust-holding capacity of the filter increases, the airflow velocity in the operating area gradually decreases. When it is lower than 0.3m/s (at this time, the voltage adjustment cannot meet the standard requirements or causes excessive vibration and noise), the primary filter should be removed and replaced with a new one. If the airflow velocity still does not meet the standard after replacing the primary filter, the high-efficiency filter should be replaced. When replacing the high-efficiency filter, the new filter should be carefully checked to see if its exterior is damaged. If damaged, a performance test should be conducted. It can only be used after it is determined that it does not affect its performance. At the same time, to prevent air that has not been filtered by the high-efficiency filter from leaking into the operating area, a 15 mm wide and 8 mm thick latex sponge should be pasted on the outer frame of the outlet end face of the high-efficiency filter. (VI) Mask cleaning Mask cleaning is crucial to ensure the accuracy of experimental results and the cleanliness of the equipment. The mask is an important part of the equipment and should be cleaned every time after use, and regular thorough cleaning should be considered. The cleaning requires thoroughness, leaving no dead corners, to ensure the accuracy of the experimental results and the cleanliness of the equipment. For example, in the laboratory, if the mask is not clean, it may cause the experimental samples to be contaminated, thus affecting the reliability of the experimental results. (VII) Cleaning of the Nebulizer The nebulizer is a key component in the equipment and also a part with a short service life. It needs to be checked, cleaned, and replaced frequently. The cleaning frequency can be determined according to the usage. It is generally recommended to check regularly and clean it in time if problems are found. The cleaning method is: to soak it in salt water first, then clean it with a soft brush. Do not disassemble it easily, and pay attention to disinfection after use and cleaning. This can ensure the normal operation of the nebulizer and provide a stable working environment for the equipment. (VIII) Daily maintenance and care To ensure the normal use and life of the equipment, daily maintenance and care are required. Check whether the power supply, water source, etc. are normal, check whether the fan and electronic control system are working properly, etc. At the same time, operate according to the regulations in the operation manual, strictly abide by the operating requirements, and avoid damage caused by incorrect operation. For example, regularly check whether the power plug is loose and whether the fan has abnormal noise. In addition, the equipment should also be regularly maintained, such as cleaning the filter and checking the sealing performance. |
