Industrial VOC online monitoring device

Abstract

The invention belongs to the technical field of VOC detection and particularly relates to an industrial VOC online monitoring device. The industrial VOC online monitoring device comprises a shell, twobutterfly valves, and a filter tube, wherein the outer wall of the shell is fixedly connected with an air inlet tube, two ends of the butterfly valve are fixedly connected, one butterfly valve is between the air inlet tube and a condenser and are in sealed connection with the air inlet tube and the condenser, the inner wall of the filter tube is fixedly connected with a fixed plate, the inner wall of the filter tube is clamped and connected with a particle filter net, and the particle filter net is connected with the fixed plate in a detachable manner. Through adoption of the industrial VOC online monitoring device, the particle filter net can filter dust particles in passing smoke, if the particle filter net is blocked, the filter tube is disconnected from the condenser and the butterflyvalve, then the inner particle filter net is remove to clean and replace, so that the inner side of the filter tube is kept smooth, and the device can monitor VOC normally.

Description

technical field [0001] The invention belongs to the technical field of VOC detection, and in particular relates to an industrial VOC online monitoring device. Background technique [0002] VOC is the abbreviation of volatile organic compounds (volatile organic compounds). There are many types of VOC and they are widely distributed. It is an air pollutant that seriously endangers the environment, ecology and human health. Nitrogen oxides undergo photochemical reactions to form photochemical smog, causing secondary pollution. In the Chinese utility model patent with the publication number CN205055767, an online automatic continuous monitoring system for the concentration of organic solvent waste gas is disclosed, which mainly filters the air, Detection after moisture absorption can realize automatic and real-time detection of VOC gas (volatile organic compound gas), but in actual use, the applicant found that when the VOC in the detected air exceeds the standard, the air is st...

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Problems solved by technology

[0002] VOC is the abbreviation of volatile organic compounds (volatile organic compounds). There are many types of VOC and they are widely distributed. It is an air pollutant that seriously endangers the environment, ecology and human health. Nitrogen oxides undergo photochemical reactions to form photochemical smog, causing secondary pollution. In the Chinese utility model patent with the publication number CN205055767, an online automatic continuous monitoring system for the concentration of organic solvent waste gas is disclosed, which mainly filters the air, Detection after moisture absorption can realize automatic and real-time detection of VOC gas (volatile organic compound gas), but in actual use, the applicant found that when the VOC in the detected air exceeds the standard, the air is still directly discharged to the In the atmosphere, and long-term use will cause the VOC content in the atmosphere around the monitoring system to be high, resulting in a large error in the test results

[0003] Therefore, the Chinese patent discloses a VOC online monitoring device with the application number (201820402859.9). This patented technology can purify the air that exceeds the standard after detection, so as to prevent the increase of VOC content around it from affecting the detection. However, the device is used When the dust is filtered through the dust filter, the water vapor is condensed through the condenser, because the flue gas generated in industrial production contains a large amount of dust and particles, and when the dust passes through the filter for a long time, it will cause filtration. If the filter is blocked, if the filter device is not replaced in time, it will cause no ventilation, which will affect the monitored data

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