Explosion-proof TVOC (Total Volatile Organic Compound) gas leakage region monitoring device

Abstract

The invention discloses an explosion-proof TVOC (total volatile organic compound) gas leakage region monitoring device, which comprises an explosion-proof shell provided with a sampling opening for gas in and out, a main processing module, a wireless radio frequency module, an NB-IOT (Narrow Band Internet of Things) module, an analog switch provided with an antenna extending out from the explosion-proof shell, an auxiliary processing module, a TVOC sensor, an all-in-one sensor and a power module for supplying power to the main processing module, the wireless radio frequency module, the NB-IOT module, the auxiliary processing module, the TVOC sensor and the all-in-one sensor; the auxiliary processing module is used for collecting, processing and calibrating the data from the TVOC sensor and the all-in-one sensor, then sending the data to the main processing module, and then the main processing module controls the wireless radio frequency module or the NB-IOT module to carry out data interaction with an external server.

Description

technical field [0001] The invention relates to the field of environmental pollution monitoring, in particular to an explosion-proof TVOC gas leakage area monitoring device. Background technique [0002] At present, it has become a consensus to control air pollution, monitor TVOC gas leakage and regional air quality. The problems in chemical, steel, coating and other industries are particularly prominent. The reduction of TVOC gas emission plays a key role in improving air quality. Compared with the laboratory instruments such as FID, PID, optical and mass spectrometry, on-line instruments and portable instruments, which are widely used in this field at home and abroad, the dangerous and toxic gases in the air are monitored. [0003] When laboratory instruments monitor TVOC gas leakage, they can effectively analyze the leaked components, but the timeliness is poor, and the source of the leakage cannot be located. Laboratory instruments are usually large in size and complicat...

AI Technical Summary

Problems solved by technology

However, the requirements for the installation environment are harsh, and it is difficult to connect to the power supply in places with flammable and explosive gases. This type of instrument is expensive and is not suitable for large-scale and rapid deployment.

[0005] Portable instruments can achieve the purpose of rapid deployment and leak source location, but because such instruments generally adopt the method of inspection every 3 to 6 months, the collected data cannot be fed back to the background processing staff in time, and the timeliness is poor. Difficult to detect the large-scale leakage of TVOC gas in time

[0006] For this reason, there are currently a large number of open patent documents on TVOC monitoring, such as: a wireless air quality monitoring system for public places disclosed by the Chinese patent authorization announcement number CN202649194U, and a VOC gas detection wireless sensor disclosed by the Chinese patent authorization announcement number CN202974991U , Chinese patent application publication number CN105181618A discloses an outdoor VOC gas monitoring system, Chinese patent application publication number CN105388208A discloses a VOC monitor in the air based on PID and its method for realizing remote monitoring, and Chinese patent authorization publication number CN205581048U discloses A VOC air detection device and a network system provided with the device, Chinese patent application publication number CN106706863A discloses a sensor group indoor air monitoring system, etc., but the above-mentioned patents all have the following problems: 1. The communication mode cannot be switched ; 2. A single processor is not conducive to data processing; 3. It does not have explosion-proof performance and cannot work in explosive environments

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