8 points for attention in the installation of laboratory fume hood

In the laboratory construction, choose the fume hood and determine the installation position of the fume hood, need to choose the type of fume hood, material, shape, etc., according to the experimental content, usually consider the following contents:
First, the use of drugs: when using organic matter or other special reagent experiments, to give full consideration to its control of wind speed. Heat source: When using equipment with heat source, the amount of ventilation required to remove heat should be considered to determine the power of the fan when the heat exceeds 2000 kcal/hour.
Second, when there are radioactive substances or perchloric acid experiments: special fume hood should be selected, and the inlet wind speed must be set greater than 0.5m/s.
Three, when using large equipment for experiments: to consider the effective size of the interior, to leave the necessary space for exhaust air.
Four, material: in the use of special acid experiments, we should consider the material of the fume hood, such as semiconductor industry, corrosion industry, etc., must be manufactured with anti-corrosion materials.
Five, the outline size of the fume hood: choose its outline size according to the experimental content. Too large volume will cause waste and too small influence on the use.
Six, equipped with fume hood environmental protection: the harmful gas discharged must ensure that it is lower than the national environmental protection requirements, if it exceeds the national health standards, the corresponding purification device should be installed.
Seven, save energy: try to consider saving energy, in the room with heating or air conditioning should be used to fill the air shape fume hood or choose a fume hood with air volume control. When choosing the fan, its power should also be determined according to the need, and it is not suitable to blindly increase the exhaust air volume and pressure. Frequency converter or variable wind speed fan can be used to reduce the power consumption.
Eight, the installation position of the fume hood should avoid facing the road and personnel through the frequent site, avoid blocking Windows and ventilation and lighting adverse places, avoid blocking the entrance and exit affect the door switch, avoid the opposite or placed in the corner wall. In the modern research laboratory, advanced scientific instruments, perfect experimental equipment, good experimental environment is to improve the level of science and technology, promote the scientific research results of the necessary conditions. People-oriented, ensure safety and improve efficiency are the biggest mission of laboratory construction. Fume hood as an important experimental facility in biochemical laboratory has a decisive role, so we must carefully choose the fume hood to meet the technical indicators. Unit one-sided low cost and installation of fume hood, if it causes harm, the consequences are unimaginable, the function and safety of fume hood, should cause people's enough attention.