Anyone who has used an all-steel fume hood should know that its exhaust effect is very good. This is because its exhaust system plays a role that cannot be ignored. It has more than one exhaust system. If you want to know more about its exhaust system, I believe the following content will be of interest to you.

       's exhaust system can be divided into two types: centralized and decentralized. Centralization is a fume hood system on one or several floors, or the entire laboratory building is divided into one or two systems. It is characterized by fewer ventilators, investment in equipment, slight increases and decreases in the number of ventilators, and changes in location, all of which have specific adaptability.

        However, because the system is large, the air volume is not easy to balance. Although every all-steel fume hood is equipped with a regulating valve, it is very inconvenient to use and it is not easy to achieve the ideal effect. If the system air duct is damaged and needs to be repaired, the entire system's ventilator cannot be used. Therefore, the original centralized laboratory system has been changed to use a decentralized system.

        dispersed is aFume hoodOr several in the same room to form an exhaust system. Its characteristic is that the ventilator can be turned on and off according to the working needs of the ventilator without interference, and it can easily meet the expected results and reduce energy consumption compared with the centralized type. Because of the centralized system, if there are ventilation fans in use, we have to turn on the large ventilation fans. The distributed system has small volume, small exhaust volume, small resistance, low fan air volume and wind pressure, and low noise and vibration.

        dispersion type also has a feature, that is, it is easy to handle and discharge harmful gases of different properties. The disadvantage is the number of fans and fan systems. If you focus on the ventilation room, then if the fans are dispersed and installed locally, the investment will increase. Although the fan investment increases, the air duct can save investment, and the total investment may not increase. Dispersants are recommended.

        When dividing the system, if there are more than two ventilation hoods in the same room, they should be classified as one system to avoid the use of ventilators, while other fume hoods are used to prevent indoor contamination. In addition, it is not suitable to reinstall other exhaust equipment except the exhaust system in one room.

        ventilation system is usually installed on the roof of a ventilated room, or on the top, which can use the area without occupying it, and the indoor air exhaust pipe is in a vacuum state, thereby avoiding harmful substances due to corrosion or pipe damage, and the pipes are not tight, penetrating into the interior. In addition, the fan is installed on the roof or top of the ventilated room, which is convenient for maintenance and easy to cause noise or vibration.