Ventilating cabinet

Abstract

The ventilating cabinet with arm port on the door consists of a casing, a console, a blower, an exhaust pipe and a door. On the door, there are arm ports with glove and self sealing device. Inside the ventilating cabinet, there may be air intake pipeline and air regulating valve as required. The present invention is used mainly for chemical, physical, biochemical and other experiments.

Description

Technical field [0001] The invention relates to a fume hood used in chemical and biological experiments, especially a fume hood with an arm opening on a movable door. Background technique [0002] At present, the fume hoods sold on the market are fume hoods composed of a casing, an operating table, a fan, an exhaust pipe and a movable door. This type of fume hood uses a fan to discharge the toxic and harmful air in the fume hood to the outside through the exhaust pipe. , in order to prevent toxic and harmful gases from overflowing, a certain amount of ventilation must be maintained, which leads to two disadvantages: one is that the indoor air loss is too fast, especially in winter and summer, which leads to the failure of air conditioning and heating; The power must be large enough to increase power consumption and noise. Especially when multiple fume hoods are used in the laboratory at the same time, the above disadvantages are more obvious. In addition, when the experime...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the disadvantages of the existing fume hood (indoor air loss is too fast, the power consumption of the fan is large, the noise is large, and it is not safe enough), the present invention provides a fume hood, which can effectively reduce the loss of indoor air, reduce the power of the fan and Reduce noise, and at the same time prevent a large amount of toxic and harmful gases from overflowing the fume hood, and also reduce the damage to experimenters caused by experimental accidents (explosions, etc.)