A fume-free hood digester

Abstract

The invention discloses a ventilating-cabinet-free elimination boiling device which comprises an elimination boiling chamber (1) and a control motor (2), wherein a closed top cover (3) is arranged above the elimination boiling chamber (1), and an interlayer cavity (4) is formed between the top cover (3) and the upper wall of the elimination boiling chamber (1); a gas suction opening of a gas extraction pipe (5) extends into the upper side of the front part of the inner cavity of the elimination boiling chamber (1) through the interlayer cavity (1); an outlet of the gas extraction pipe (5) is connected with a cooling pipe (7) positioned in a waste gas absorption pool (6) below the elimination boiling chamber (1); the cooling pipe (7) is communicated with a gas suction opening of a high-pressure corrosion-resistant fan (8) positioned on the rear side of the control motor (2); a gas outlet of the fan (8) is communicated with an aeration pipe (9); a horizontal part, which is positioned in the waste gas absorption pool (6), of the aeration pipe (9) is of a clip structure. The equipment disclosed by the invention occupies a small space, is high in absorption efficiency and is long in service life.

Description

Technical field [0001] The invention relates to the technical field of research engineering equipment for plant, animal, soil, food chemical analysis and the like, and specifically relates to a fume hood-free digester with high absorption efficiency, small space occupation and high safety. Background technique [0002] The deteriorating global environment has attracted widespread human attention in recent years, but there are very few environmental protection measures that are truly acted upon. In the process of scientific research, how to avoid additional pollution has attracted more and more attention, especially in the field of scientific research, which can not introduce additional pollution while benefiting mankind. Existing sample digestion and boiling devices are all single waste gas collection devices, and they do not fully integrate the waste gas absorption and utilization and the sustainable development of secondary products after absorption. At present, the most widely...

AI Technical Summary

Problems solved by technology

The existing sample digestion devices are all single waste gas collection devices, which do not achieve the integration of waste gas absorption and utilization and the sustainable development of secondary products after absorption. At present, most of the domestic markets are open. The digestion furnace is equipped with a large-volume closed exhaust system, and the extracted corrosive gas is directly discharged into the atmosphere without treatment

However, the current products on the market have the following shortcomings: 1. The price of imported products is high and cannot be widely promoted in the country, thus reducing the popularity of the product. At the same time, it is not easy to manage and negotiate with manufacturers in terms of product maintenance. Problems during use; 2. Domestic products generally extract the polluted gas generated during the test without treatment, and directly discharge it into the air, which is likely to cause serious pollution to the environment. At the same time, this method also needs to be rushed back to increase Additional fume hoods are used to remove polluting gases and increase costs; 3. Some products have suction and absorption devices, but they cannot solve the problems of pollutant gas absorption efficiency and absorption liquid reutilization; 4. Traditional digestion devices not only It is inconvenient to operate and takes up a lot of space, and generally requires a separate compartment for digestion

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