Dynamic adsorption-type toxic gas detection device

Abstract

The invention discloses a dynamic adsorption toxic gas detection device. According to the invention, compressed air is delivered into one of the gas inlets of a gas mixer through an air purifier, a gas humidity regulator, an electronic thermometer / hygrometer, and a gas flowmeter; an outlet of a toxic gas source communicates with a second one of the gas inlets of the gas mixer. The gas outlet of the gas mixer communicates with a gas inlet of a toxic gas concentration detector and a gas inlet of a toxic gas absorption filter. The outlet of the toxic gas absorption filter is connected with a penetration concentration detector. The gas humidity regulator, the electronic thermometer / hygrometer, and the gas flowmeter form an air flow rate and air humidity regulation circuit. The toxic gas concentration detector, the toxic gas absorption filter, and the penetration concentration detector form a dynamic absorption and toxic gas detection circuit. The device provided by the invention has the advantages of simple structure, convenient operation, and precise detection data. With a waste absorption device, pollution to the atmosphere and harm to operators caused by residual toxic gas are avoided.

Description

technical field [0001] The invention relates to a detection device for toxic gas, in particular to a dynamic adsorption type detection device for toxic gas. It belongs to the technical field of gas detection equipment. Background technique [0002] People will be exposed to some toxic gases in their daily work, especially in chemical-related jobs, such as painters and chemical test inspectors. These people are often exposed to some toxic and harmful chemical reagents in their work. Therefore, in order to ensure their life, health and safety, and provide a non-polluting working environment, it is necessary to use filter elements to filter those toxic and harmful gases, so The toxic gases mentioned include benzene, ammonia, ethylene vapor or sulfur dioxide. In order to ensure the use effect of these filter elements, the protection time of filter elements is mainly tested. This test requires multiple tests with special equipment to verify its use effect. The protection time ...

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Problems solved by technology

[0003] (1) The whole equipment is equipped with multiple connection ports, and the tightness of the connection ports is poor, which is prone to air leakage and poor sealing;

[0004] (2) The test of temperature and humidity adopts manual reading, and there may be errors in the reading;

[0005] (3) The filter element and the detection device are connected by threads, and the filter element needs to be manually tightened to avoid omission, but it is laborious to tighten the filter element and the operation is complicated;

[0007] Based on the above, the data obtained by the existing equipment is inaccurate and has errors, which threatens the health of the inspectors and causes environmental pollution

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