Views: 0 Author: Site Editor Publish Time: 2025-05-16 Origin: Site
There are numerous details to pay attention to when installing a fume hood. Here are some key points to note:
Location selection: Fume hoods should be installed far away from doors, Windows, passageways and other areas with frequent human flow to reduce air flow interference and the spread of pollutants. At the same time, there should be sufficient space on the back and sides of the fume hood to facilitate the installation of exhaust ducts and maintenance.
Laboratory layout: The installation location of the fume hood should take into account the overall layout of the laboratory to ensure there is sufficient space between it and other equipment, facilitating operation and maintenance.
Ground level: Before installation, the installation area must be thoroughly cleaned to ensure that the ground is level and free of debris. For heavy-duty fume hoods, necessary ground reinforcement treatment is also required.
Basic requirements: The foundation of the fume hood should be level and solid, and the height of the foundation should be no less than 200mm. For fans, it is also required that the foundation be level, solid and fixed on a concrete foundation.
Electrical system: The electrical system of a fume hood includes lighting, sockets, fan control, etc. It should be wired by professional electricians in accordance with relevant regulations to ensure electrical safety. Meanwhile, the metal parts of the fume hood should be reliably grounded to prevent electric leakage and electric shock accidents.
Pipe connection: The exhaust ducts should be as short as possible. The exhaust channels should be as upright as possible, and the higher the channel, the better. The pipeline design should avoid being too long, too curved or having dead corners to ensure the exhaust efficiency. The fan and the air duct should be connected with a flexible hose (made of flexible material and non-combustible), and the length and pipe diameter must meet the requirements.
Sealing inspection: The sealing performance of the fume hood is the key to ensuring its effective isolation of harmful gases. During the installation process, it is necessary to carefully check whether the sealing strips at the cabinet doors, side panels, observation Windows and other parts are intact and whether they are installed properly.
Stability check: The overall structure of the fume hood should be stable without any shaking. For fume hoods with adjustable heights, they also need to be adjusted to the appropriate position and the fixing devices locked.
Operating Procedures: After installation is completed, a comprehensive inspection of the fume hood should be carried out. Only after confirming that all functions are normal can it be put into use. During the usage process, safety operation procedures should be followed to avoid safety accidents caused by improper operation.
Maintenance and care: Regularly clean and maintain the fume hood to ensure its normal operation and extend its service life. When cleaning, it is important to avoid using highly corrosive cleaning agents to prevent damage to the surface coating of the fume hood.
Corrosive gas environment: In some special environments, such as places where corrosive gases exist, the installation of fume hoods also needs to take into account additional protective measures. For example, fume hoods and the like are made of corrosion-resistant materials.
Flammable and explosive gas environments: In places where flammable and explosive gases exist, the installation of fume hoods should be more cautious to ensure that all equipment and pipelines meet explosion-proof requirements.
Wind speed adjustment: After installation is completed, the fume hood should be adjusted and tested. The wind speed on the control panel should be adjusted to 0.5m/s, and the surface wind speed should be checked to see if it meets the standard.
Safety device inspection: Focus on inspecting the performance of the safety devices of the fume hood to ensure that it can respond promptly in emergency situations and protect the safety of laboratory personnel.
In conclusion, the installation of fume hoods is a systematic project that requires comprehensive consideration of multiple factors. Only by operating strictly in accordance with relevant norms and standards can the safe and effective operation of fume hoods be ensured.
