Laboratory exhaust treatment device

Abstract

The invention provides a laboratory exhaust treatment device which comprises a gas inlet device, a first purification device, a second purification device, a connecting pipe, a gas outlet pipe, a gas detector and a controller, wherein a gas guide pipe is use for guiding exhaust into a first box body, first gas nozzles are distributed on the gas guide pipe; the gas guide pipe can rotate around the first box body and is capable of stirring the first purification liquid; a sprayer on the liquid inlet pipe is used for spraying the first purification liquid into the first box body; the polluted first purification liquid can be discharged from the liquid outlet; as the first purification liquid is continuously updated and the exhaust is in sufficient contact with the first purification liquid, most of toxic gas can be removed; the purified polluted first purification liquid can be discharged from the liquid outlet and treated; the connecting pipe is used for guiding the gas subjected to the primary purification into a second purification device, so that the gas can be in sufficient contact with the second purification liquid again to remove the remained toxic gas. The laboratory exhaust treatment device is thorough in purification treatment, simple in structure, convenient to operate, low in cost and wide in application range.

Description

technical field [0001] The invention relates to the technical field of laboratory equipment, in particular to a laboratory waste gas treatment device. Background technique [0002] The laboratory is a place for experimenters to conduct experimental analysis and scientific research activities. Various chemical kits and medicines are used in the experimental analysis process. These reagents and medicines often emit toxic and harmful gases. Various chemical reactions during the experiment Exhaust fumes are also produced. The sources of waste gas mainly include volatiles of reagents and samples, intermediate products of the analysis process, leakage and evacuated standard gas and carrier gas, etc., and its main components are organic waste gases (benzene series, ethanol, carbon tetrachloride, methane, ether, aldehydes, etc.) and inorganic waste gases (hydrogen chloride, hydrogen bromide, chlorine, ammonia, etc.). In recent years, the pollution of the laboratory has become incr...

AI Technical Summary

Problems solved by technology

Although this treatment is an effective way to ensure indoor air quality and protect the health and safety of laboratory personnel, it will pollute the atmosphere around the experimental area and directly affect the quality of the ambient air.

Moreover, the fume hood usually occupies a large area, and some experimental equipment cannot be placed in the fume hood, which makes it difficult to discharge toxic and harmful gases.

However, most of the current adsorption devices for toxic and harmful gases are large-scale equipment, which are aimed at factories and cannot be used in laboratories, and the cost of equipment is relatively high. Not every school can be equipped with these hardware in large quantities. The method of ozone also has ozone disinfection, but excessive ozone makes people poisoned, and can make rubber products aging, thereby, selects appropriate method to purify before waste gas discharge will be the problem that those skilled in the art need to solve

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