Analysis of variable air volume operation of all-steel fume hoods in laboratory equipment
has the power to remotely extract fumes from the exhaust pipe of indoor ventilation equipment through the end of the inner cavity of the negative pressure of the local space relative to the indoor air pressure. The staff stands on the all-steel fume hood operating window and extends the front side knob of the handle into the cabinet for chemical ventilation operations. The harmful gases or smoke produced by the operation are sucked from the exhaust duct fan through the exhaust port at the top of the cabinet, so that harmful gases or smoke will not escape the window of the facility and work on the window, or enter a room, overflow the dyeing room corridor and adjacent offices.
laboratories also have the installation of various local ventilation equipment, such as fume hoods, local ventilation equipment and other facilities. For example, the laboratory all-steel fume hood is one of the important local exhaust equipment and has been mass-produced in accordance with existing industrial standards.
Having a good variable air volume all-steel fume hood control system will bring us the following benefits:
1. Maintain a stable and safe window wind speed;
2. Facility draft is not affected by changes in main pipeline pressure (i.e., independent of “ pressure ”);
3. Reduce unwanted emissions from air conditioning or heat.
