Gas detection device for environmental detection

Abstract

The invention discloses a gas detection device for environmental detection, comprising: an equipment base, a circulating pumping mechanism and an incremental flow guide mechanism fixedly installed on the surface of the equipment base, and an ultrasonic cavitation mechanism is fixedly installed on the upper and lower surfaces of the incremental flow guide mechanism. One end of the incremental diversion mechanism is provided with a sensing end, and a number of gas detection sensors are embedded in the inner side of the sensing end; the circulating pumping mechanism includes a drive mechanism, a drive box and a pumping box; the incremental diversion mechanism includes a diversion column Tube, flow increasing ring, Tesla booster conduit and return ring, the flow increasing ring and return flow ring are respectively located at both ends of the diversion column tube. In the present invention, by setting an incremental diversion structure, the airflow flowing through the surface of the susceptor is accelerated and circulated, so that the susceptor increases more airflow conduction in the unit room, thereby detecting more gases and measuring the toxic substances in the unit volume Or the average content percentage of other substances to be tested, eliminating the occasional interference of detection, making gas detection more accurate.

Description

technical field [0001] The invention relates to the technical field of environmental detection, in particular to a gas detection device for environmental detection. Background technique [0002] Gas information is an item that people pay great attention to nowadays, but the difficulty of gas detection is quite high, especially when the normal gas often exists in the mixture of multiple gases, so when gas detection is often interfered by other gases It may lead to inaccurate or failed measurement. Currently, in order to avoid the interference of the gas to be measured by other gases, the gas to be measured will be separated before detection. , there are many types of gas detectors and temperature and humidity detectors, including semiconductor film type, electrochemical reaction type, resistance type, etc., and the existing gas detectors include a gas detection unit and a signal transmission unit, the gas detection unit and The signal transmission units are packaged in separ...

AI Technical Summary

Problems solved by technology

[0002] Gas information is an item that people pay great attention to nowadays, but the difficulty of gas detection is quite high, especially when the normal gas often exists in the mixture of multiple gases, so when gas detection is often interfered by other gases It may lead to inaccurate or failed measurement. Currently, in order to avoid the interference of the gas to be measured by other gases, the gas to be measured will be separated before detection. , there are many types of gas detectors and temperature and humidity detectors, including semiconductor film type, electrochemical reaction type, resistance type, etc., and the existing gas detectors include a gas detection unit and a signal transmission unit, the gas detection unit and The signal transmission units are packaged in separate housings, and their overall dimensions are generally larger than 20cmx20cmx20cm. Therefore, the gas detector is in contact with a small amount of gas per unit time, and it is necessary to realize gas and temperature and humidity monitoring in a large environmental range. Sensing also needs to set up multiple sensing probes, PLC systems and communication modules for multi-point detection. Multi-point monitoring uses the maximum number of samples to reduce the occurrence of accidental and uncertain events, resulting in high equipment costs

[0003] The water vapor in the environment has a certain degree of non-cooperation for gas detection, that is, there is water vapor interference, and most of the water vapor particles in the air are in the form of foggy particles. When forming particles, a large amount of impurities in the air are required as condensation nuclei, and a large number of impurities are affected. The atomized particle package is difficult to be perceived by various receptors; for example, in the infrared gas detection sensitive element, the internal gas chamber is composed of optical devices, and the infrared light enters the detector after multiple reflections in the gas chamber to finally realize the gas concentration measurement. Among them, the optical air chambers are metal-plated parts, and the surface is very easy to condense in high-temperature and high-humidity environments. Once the optical surface condenses, it will inevitably change the original reflection route of the light, resulting in a large deviation in the measurement data. Therefore, how to effectively Preventing the internal condensation of infrared components in high-temperature and high-humidity environments has become a prerequisite for whether infrared gas detection sensing technology can be used for toxic gas detection in coal mines

[0004] In view of this, the existing problems are researched and improved, and a gas detection device for environmental detection is provided to solve the current problem that the air detection sensor is easily affected by the environment and the measurement is highly accidental, aiming to solve the problem through this technology and the purpose of improving practical value

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