German
French
Italian
Portuguese
Japanese
Korrean
Russian
How to replace the ultra-clean table high-efficiency filter?
How to replace the ultra-clean table high-efficiency filter?The working principle of the ultra-clean table is to use air purification technology and airflow organization to provide a highly clean environment for the work area. The details are as follows:Air filtration: The ultra-clean workbench is equipped with a multistage air filtration system. Usually through the pre-filter, the large dust particles, hair, and other impurities in the air are removed, which plays the role of preliminary filtration to protect the subsequent high-efficiency filter. The air then passes through a high-efficiency air filter (HEPA) for secondary filtration. The HEPA filter can effectively intercept small dust particles and microorganisms in the air, and its filtration efficiency can reach more than 99.97%, which can ensure that the air blown out of the filter has a high degree of cleanliness. Airflow organization: The filtered clean air is blown out of the air surface of the high-efficiency filter at a certain speed and a uniform cross-section wind speed, forming a stable airflow. The common airflow organization forms are vertical laminar flow and horizontal laminar flow. In vertical laminar flow, clean air flows vertically down from the top of the workbench, taking away pollutants such as dust particles and biological particles in the working area, and returning to the fan plenum through the return air outlet to form a circulation. Horizontal laminar flow is clean air blown horizontally from one side of the workbench and flows along the surface of the workbench, pushing pollutants to the other side and discharging them, also forming a circulating airflow. This stable and uniform airflow can form a one-way flow of clean air environment in the work area, preventing the intrusion of external pollutants, while constantly taking away the pollutants generated during the work process, to maintain the high cleanliness of the work area. The use and maintenance method of ultra-clean workbench The following is the use and maintenance method of the ultra-clean workbench: Usage method Preparation work: Before use, prepare all the items required for the experiment to avoid pollutants brought into the ultra-clean workbench during the operation. Turn on the equipment: turn on the power, turn on the main switch of the ultra-clean workbench, and then turn on the ultraviolet lamp, and sterilize the working area for at least 30 minutes. After the disinfection is completed, turn off the ultraviolet lamp, turn on the fan and lighting system, and let the fan run for a period of time to achieve a stable clean state of the working area. Place items: Put the experimental supplies into the ultra-clean workbench, and pay attention to avoid blocking the outlet and return the air outlet when placing, to keep the airflow unblocked. Items should be neatly arranged and easy to handle. Operation: The operator should wear clean work clothes, masks and gloves, sit or stand in front of the ultra-clean workbench, and extend the arms into the workbench for experimental operation. Try to avoid violent movements during the operation to avoid disturbing the airflow. At the same time, keep the work area clean and avoid leaving debris or pollutants on the work table. End operation: After the end of the experiment, clean up the work area in time, put the waste into the designated trash can, and wipe the workbench with disinfectant. Turn off the fan and lighting system, and cut off the power. Maintenance method Daily maintenance: After each use, wipe the countertop and inner wall with a clean, damp cloth to remove dust and stains. Regularly check the exposure intensity of the ultraviolet lamp, if the ultraviolet lamp is found to be aging or insufficient exposure, it should be replaced in time. Filter maintenance: Regularly check the resistance of the high-efficiency filter, when the resistance reaches a certain degree, the filter should be replaced in time. Under normal circumstances, the replacement cycle of high-efficiency filters is 1-2 years, but the actual replacement time needs to be determined according to the frequency of use working environment, and other factors. When replacing the filter, pay attention to selecting the appropriate model and install it correctly. Fan maintenance: Check the running status of the fan regularly. If the speed of the fan is abnormal or abnormal noise is found, stop the fan for check-in time. Clean the dust in the impeller and volute of the fan to ensure the normal operation of the fan. At the same time, pay attention to the lubrication and maintenance of the fan, and add lubricating oil regularly according to the requirements of the equipment manual. Electrical system maintenance: regularly check the lines and joints of the electrical system to ensure that the connection is firm, with no loosening and leakage phenomenon. If electrical faults are found, the power supply should be cut off in time and repaired by professionals. Regular testing: Regularly test the cleanliness, wind speed, air flow uniformity, and other indicators of the ultra-clean workbench to ensure that its performance meets the requirements. You can use professional testing instruments, such as dust particle counters, anemometers, etc. If you find that the indicators do not meet the requirements, you should find the cause in time and carry out maintenance or adjustment. How should the HEPA filter be replaced? The replacement of the high-efficiency filter of the ultra-clean workbench can be carried out as follows: Preparatory work Stop the operation of the device: Turn off the power supply of the ultra-clean workbench to ensure that the device is stopped to prevent accidents during the replacement process. Prepare tools and materials: Prepare tools such as a new high-efficiency filter (of the same model as the original filter), screwdrivers, wrenches, and auxiliary materials such as clean rags and sealant. Clean the work area: Wipe the inside of the ultra-clean workbench with a clean rag to remove dust and debris on the surface and create a relatively clean environment for replacing the filter. Remove old filter Open the filter hatch: Locate and open the filter hatch or cover plate according to the structure of the ultra-clean workbench. You usually need to use a screwdriver or wrench to remove the fixing screws or release the latches. Remove the old filter: Carefully remove the old filter from the mounting position. Pay attention to avoid collision between the filter and the surrounding components to prevent dust from being raised. After removal, place the old filter in a clean garbage bag and seal it well for proper disposal. Install new filter Check the new filter: Before installation, carefully check the appearance of the new filter for damage, deformation, or contamination. If there is a problem, replace the new filter in time. Place the filter: Place the new filter into the installation position in the correct direction. Make sure the filter fits tightly to the surrounding frame or bracket without gaps. Some filters may need to use sealant to strengthen the sealing effect, at this time should follow the instructions to evenly apply sealant to the edge of the filter. Secure the filter: Use a screwdriver or wrench to secure the filter and ensure that it is securely installed. When tightening screws or fasteners, pay attention to uniform strength to avoid damage to the filter due to uneven force. Testing and debugging Close the door: After installation, close and seal the filter door or cover plate. Turn on the equipment: turn on the power supply of the ultra-clean workbench, turn on the fan and other equipment, let the ultra-clean workbench run for a period of time, make the filter fully play a role, and check whether the equipment is running normally. Detection performance: The use of professional detection instruments, such as dust particle counters, anemometers, etc., to detect the cleanliness of the ultra-clean workbench, wind speed, and other indicators. Ensure that all indicators comply with equipment requirements and related standards. If the indicator is abnormal, locate the cause and adjust it in time, for example, check whether the filter is properly sealed and the fan is running properly. During the entire replacement process, the operator should strictly follow the operating procedures and keep the working area clean to avoid pollution from the new filter. If you are not familiar with or unsure of the replacement process, you are advised to refer to the manual of the ultra-clean workbench or consult professional technicians. |
