Everyone in their daily lives also knows that there are often many sources of chemical contamination in the laboratory that are not conducive to human health, especially harmful gases. It is very important to exclude them. At the same time, however, energy is often consumed in large quantities, and the requirements for laboratory ventilation control systems are increasing, from early fixed air volume, bistable, variable air volume systems, to the latest adaptive control systems – both safe. It must meet the needs of energy conservation.
In short, the latest concept of the laboratory is to treat the entire laboratory as a smoke exhaust cabinet. How to effectively control various intake and exhaust, it is essential to achieve safe and economical effects. Commonly used exhaust equipment in the laboratory are: fume hood, atomic absorption hood, universal exhaust hood, ceiling hood, overhead hood and so on. The fume hood is the most common.
The fume hood is a ventilating device that safely handles hazardous, toxic gases or vapours. It is used to capture, seal and transfer contaminants and harmful chemical gases to prevent escape into the laboratory, thus keeping them away from contaminants in the work area. The operator, to minimize the inhalation contact. The airflow in the fume hood sucks the air in the laboratory into the fume hood through the exhaust fan, and the pollutants in the fume hood are diluted and discharged to the outside through the exhaust system to achieve low concentration diffusion.
Universal suction hood is the first choice for local ventilation: simple installation, flexible positioning and good ventilation performance can effectively protect the personal safety of laboratory staff. The atomic absorption hood is mainly suitable for all kinds of large-scale precision instruments. It requires positioning and installation, and has set ventilation performance parameters. It is also one of the factors that must be considered in the overall laboratory planning. The hood is primarily intended for use in chemical laboratories and is one of the essential equipment in addressing the overall ventilation requirements of such laboratories.
There are often many sources of chemical contamination that are not conducive to human health in the laboratory, especially harmful gases. It is very important to eliminate them, and it must meet the needs of energy conservation. In short, the latest concept of the laboratory is to treat the entire laboratory as a smoke exhaust cabinet. How to effectively control various intake and exhaust, it is essential to achieve safe and economical effects.
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