Fume hood with simple tail gas treatment facility and tail gas treatment method

Abstract

The invention provides a fume hood with a simple tail gas treatment facility and a tail gas treatment method. The fume hood includes a fume hood body, a fume pipeline, a plurality of exhaust inlets inthe hood, a plenum chamber, an air filter element and air outlets. The fume pipeline is arranged in the fume hood body, the exhaust inlets in the hood are arranged on the fume pipeline, and the plenum chamber is arranged on the upper end face in the fume hood body and located above the fume pipeline. The plenum chamber communicates with the exhaust inlets in the hood, the air filter element is arranged at an entrance of the plenum chamber, and the air outlets are arranged at the top of the fume hood body and located at the downstream of airflow in the plenum chamber. According to the fume hood, the plenum chamber is arranged between the exhaust inlets and the air outlets of the fume hood, an absorption type air filter element is arranged in the plenum chamber, and the purification treatment of poisonous and harmful gas testing can be achieved on the fume hood. The measure adopted is easy, the cost is low, and the investment of separately constructing a tail gas treatment device can besaved after implementing the fume hood.

Description

technical field [0001] The invention relates to the field of petrochemical laboratory equipment, in particular to a fume hood with simple tail gas treatment facilities and a tail gas treatment method. Background technique [0002] A large number of stations in the oil industry have laboratories. These stations have a single test item and few test instruments. Usually only one test room is built, but the test items involved often emit toxic and harmful gases. This type of test needs to be completed in a fume hood. The fume hood separates the personnel from the test samples. By exhausting the air in the cabinet, the toxic and harmful gases generated during the test process are prevented from being released into the room. The exhausted gas needs to be treated to meet the discharge requirements. After the standard is discharged into the atmosphere. At present, the common practice in the industry is to uniformly collect the gas discharged from the fume hood, set up an independen...

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Problems solved by technology

[0003] In order to overcome the problem that the number of fume hoods in the laboratory of the existing oil field station is small, the emission is small, and the independent tail gas treatment device on the market is relatively large in scale and complex, which will cause waste of investment. The present invention provides a simple tail gas treatment facility. Fume hood and tail gas treatment method, the present invention adds an air static pressure box between the air suction port and the air exhaust port in the cabinet, and installs an air filter element at the entrance of the static pressure box

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