Quantitative gas detection device

Abstract

The invention relates to the technical field of gas detection, and discloses a quantitative gas detection device. The quantitative gas detection device comprises a machine frame, a detection box and adriving mechanism, wherein the driving mechanism is positioned under the detection box; the interior of the detection box is slideably connected with a piston plate; the lower part of the piston plate is connected with a piston rod; the piston rod is fixedly connected with the driving mechanism; a detection passage, a battery and a detection lamp are arranged at the upper part of the detection box, the battery and the detection lamp are respectively electrically connected with a conducting wire, a detection plate is arranged in the detection passage and is hinged to the detection box, a firstadhesive layer is arranged at the lower part of the detection plate and is in contact with two conducting wires, and a second adhesive layer is arranged on the detection passage; an air intake passage is arranged at one side of the detection box, a blocking plate is arranged in the air intake passage, the other end of the blocking plate is provided with a groove, an air cavity is arranged in thedetection box above the groove, a limiting block is arranged in the air cavity, and a spring is arranged at the top part of the limiting block; the air intake passage is provided with a shrinkage section, a throat pipe section and a diffusion section, an air pipe is arranged at the throat pipe section, and the air cavity is communicated with the air intake passage through the air pipe. The quantitative gas detection device has the advantages that the structure is simple, and the detection gas can be quantitatively detected.

Description

technical field [0001] The invention relates to the technical field of gas detection, in particular to a quantitative gas detection device. Background technique [0002] Air, commonly known as "life gas", we need to breathe every day. However, the air contains different amounts of impurities in different environments. These impurities are undoubtedly harmful to the human body. We cannot see them with the naked eye. We need a detection device to detect whether the impurity content in the air is harmful to human health. [0003] One of these impurities is metal dust, which includes conductive metal dust such as iron, copper, silver, and zinc, and is found in very high levels in metal product manufacturing workshops such as cutting, grinding, and grinding. People at work usually do not pay attention to the metal dust content in the workshop and continue to carry out metal processing. They will inhale a large amount of metal dust into the body unintentionally. Excessive inhala...

AI Technical Summary

Problems solved by technology

Due to the mutual flow of gases, when the gas in the piston device is put into the detection device, it is easy to exchange with the external gas, thus affecting the content of dust in the detection gas, etc. In order to ensure its airtightness, several protective measures must be adopted , such as ensuring that the detection environment is a dust-free environment, etc., which will inevitably increase the detection cost

Due to the above problems, existing detection devices and collection devices are costly and inefficient to use

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