Experimental ventilation cabinet filtering device

Abstract

The invention provides an experimental ventilation cabinet filtering device. A gas inlet is formed in one end of a filter tank, and an exhaust port is formed in the other end of the filter tank; an acid absorption device, an alkali absorption device, an activated carbon adsorption device, an ultraviolet sterilization device, a spray-washing device, a gas drying device and a gas detection device are arranged between the gas inlet and the exhaust port sequentially. According to the invention, waste gas is well controlled to be within a safe range through arranging a plurality of gas filtering devices, and gases can be uniformly and thoroughly filtered separately through arranging a plurality of seal plates; besides, the detection device is arranged, and the concentrations of solutions for acid and alkali absorption can be automatically fed back and adjusted according to data from the detection device, so that the gas meets requirements of safety and environmental protection; further, the spray-washing device is arranged to further effectively treat gas; the ventilation cabinet filtering device provided by the invention can optimally realize the effective treatment to waste gas, thereby meeting the emission requirements of environmental protection.

Description

technical field [0001] The invention relates to the technical field of experimental ventilation, in particular to a device with air purification and humidification functions, and belongs to the technical field of experimental air purification and treatment equipment. Background technique [0002] Laboratory fume hoods are an integral part of laboratory design. In order to prevent laboratory workers from inhaling some toxic, pathogenic or toxic chemical substances, the laboratory should have good ventilation. To avoid some vapors, gases and particles (smoke, soot, dust, etc.) Absorption, Contaminating substances must be removed using fume hoods, fume hoods or local ventilation. However, although the structure of the current fume hood is simple, the filtering effect on the experimental exhaust gas is poor, the filtration is not thorough, and the exhaust gas cannot be filtered to a safe state, which poses a certain threat to the environment. [0003] Based on the above techni...

AI Technical Summary

Problems solved by technology

However, although the structure of the current fume hood is simple, the filtering effect on the experimental exhaust gas is poor, the filtering is not thorough, and the exhaust gas cannot be filtered to a safe state, which poses a certain threat to the environment.

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