Function of fume hood

What is the function of the fume hood? All steel structure fume hood of our company is made of 1.0mm thick cold-rolled steel plate in CNC machining center, cutting, positioning and punching, bending and welding Working principle: water, electricity, gas, ventilation * system, equipped with multi-functional power socket, easy to use other electrical equipment during the experiment It is convenient to use water in the process of experiment The front baffle is a movable glass door, and the top is a low-speed exhaust fan, which can smoothly discharge the harmful odorous gas during the experiment The bottom of the working face is equipped with a stainless steel water tank, which can discharge the disinfectant and experimental residues from the * drainage tank through washing, so as to keep the experimental environment safe and reliable (1) the use of the fume hood is becoming more and more extensive The electricity consumed by the fume hood accounts for a considerable proportion in the chemical laboratory Therefore, its energy-saving space is very large At present, the constant air volume system is mostly used in the design of fume hood, which is a great waste of energy (2) through frequency conversion transformation, * can save energy, on the other hand, * no matter how many fans are opened by * systems, the air volume of a single fan can be kept basically constant, which can ensure the quality of chemical experiment, so as to avoid the impact of the change of wind speed on the experiment (3) the frequency conversion transformation of the fume hood system meets the requirements of the saving society advocated by the state Due to the relatively mature technology and obvious energy-saving benefits, it is a project worthy of vigorously promotion