German
French
Italian
Portuguese
Japanese
Korrean
Russian
The key factors influencing the life of laminar flow hood
The key factors influencing the life of laminar flow hoodThe life of the flow hood is not fixed but is affected by a variety of factors, which are interrelated and interact with each other like the parts in the precision instrument, and jointly determine the service life and performance of the laminar flow hood.(1) Fan Quality As the "heart" of the laminar flow hood, the quality of the fan is directly related to the life of the laminar flow hood. Take the fan produced by EBM in Germany as an example, which is highly praised in the market with its advanced manufacturing process and high-quality materials. The impeller of this fan is optimized by aerodynamic design, which not only has a large air volume, but also can efficiently promote airflow, meet the demand of a laminar flow hood for airflow, and ensure that the air in the working area can be updated quickly and maintain high cleanliness; Moreover, the power consumption is small, which can effectively reduce energy consumption in the long-term operation process and save operating costs for enterprises. At the same time, its low noise characteristics also create a relatively quiet working environment for the operator, reducing the interference of noise pollution to the work. In terms of heat transfer, the fan performs well and generates less heat, which helps to extend the service life of the fan itself and surrounding components, reducing the risk of failure due to overheating. It has a long service life, stability, and reliability, and can continue to provide stable power support for laminar flow hoods for a long time. On the contrary, if the air volume and pressure head of the fan are insufficient, just like the insufficient blood supply to the heart, the performance of the laminar flow hood will be greatly reduced. Insufficient air volume can not discharge polluted air in the working area in time, resulting in local accumulation of pollutants, which not only affects the cleanliness, but also may cause corrosion and damage to the parts inside the equipment; Insufficient indenter, it is impossible to ensure that the air passes through the filter at an appropriate speed, affecting the filtration effect, reducing the overall performance of the laminar flow hood, and thereby shortening its service life. (2) Filtration system Laminar flow hoods are usually equipped with primary, medium, and high-efficiency multistage filtration systems, which are like layers of checkpoints to intercept pollutants in the air. The initial effect filter can remove large particles of dust in the air, such as hair, dust masses, etc., to reduce the burden for the subsequent filtration process; Medium effect filters further filter smaller particles, such as pollen and smoke particles; The high-efficiency filter can capture extremely small dust particles, even bacteria, viruses, and other microorganisms, to ensure that the sent air meets high cleanliness standards. This multistage filtration system can effectively protect the core components of the laminar flow hood, prevent pollutants from entering the inside of the equipment, and reduce the wear and corrosion of fans, motors, and other components, thus extending the overall service life of the equipment. The quality of the filter is also crucial. The high-quality filter has stable filtration performance and can maintain high filtration efficiency for a long time, and the filtration effect will not decrease significantly due to the growth of the use time. At the same time, the filter with strong anti-aging performance can maintain good physical and chemical properties under different environmental conditions and is not easy to deform and break, to ensure the normal operation of the filtration system and provide a strong guarantee for the long life operation of the laminar flow hood. (3) Use environment The operating environment has a significant influence on the life of laminar flow hoods. In an environment with a large amount of dust, such as a temporary laboratory near a construction site, or a dust processing workshop, too much dust will quickly accumulate on the filter surface of the laminar flow hood, blocking the pores of the filter material, increasing the resistance of the filter, resulting in the fan needing to consume more energy to maintain airflow, thereby shortening the service life of the fan. At the same time, dust may enter the inside of the equipment, wear the impeller, bearing, and other parts of the fan, and reduce the performance and stability of the equipment. In the presence of corrosive gases in the environment, such as chemical production workshops, electroplating plants, etc., these gases have strong oxidation or corrosion, and will chemically react with the metal parts of the laminar flow cover, resulting in rust and corrosion of the metal parts, reducing the structural strength and tightness of the equipment. Once the tightness of the equipment is damaged, external pollutants are easy to enter the working area, affecting the cleanliness, and also accelerating the damage of other components inside the equipment, seriously shortening the service life of the laminar flow hood. (4) Installation and maintenance Proper installation is the basis for the proper operation of laminar flow hoods. During the installation, ensure that all components are securely installed and sealed to prevent loose or air leakage. If the installation is improper, such as the fan is not closely connected to the pipeline, it will lead to air leakage, affecting the air distribution and cleanliness of the clean area; High-efficiency filter installation is not standardized, and there may be gaps, so that unfiltered air into the work area, reducing the filtration effect. These problems will not only affect the performance of the laminar flow hood but also may cause equipment failure and shorten its service life. Regular maintenance is also essential to extend the life of the laminar flow hood. Periodically check the operating status of the fan, such as speed, vibration, noise, etc., to discover and solve potential problems in time to ensure the stable operation of the fan. According to the specified time interval to replace the filter, according to the environmental cleanliness and frequency of use, the initial effect filter is generally replaced once every 1-6 months, and the high-efficiency filter is replaced once every 6-12 months to ensure that the filtration system always maintains efficient filtration performance. Timely cleaning of dust and debris on the surface and inside of the equipment to keep the equipment clean also helps to improve the operating efficiency and life of the equipment. On the contrary, if there is a lack of maintenance, the equipment is disease-running for a long time, the fault will gradually accumulate, and eventually lead to premature damage of the equipment. |
