VOC online monitor

1. Product overview of VOC online monitor

VOC online monitor is also called online VOC monitoring system and environmental VOC online monitoring equipment. The VOC online monitor is suitable for factory boundaries and fixed pollution sources to measure volatile organic compounds, methane, benzene series, etc. It is a device that can continuously monitor a variety of gases. Intelligent high-performance analysis and detection instruments for monitoring.

1. Background and application fields

Volatile organic compounds (VOCs) are important precursors to the formation of secondary pollutants such as fine particulate matter (PM2.5) and ozone (O₃), which in turn cause atmospheric environmental problems such as haze and photochemical smog. With the rapid development of industrialization and urbanization in my country and the continuous growth of energy consumption, the frequency of large-scale heavy air pollution in the region is increasing, seriously restricting the sustainable development of social economy and threatening people's health. Therefore, in order to fundamentally solve pollution problems such as PM2.5 and O₃ and effectively improve the quality of the atmospheric environment, the country actively promotes the prevention and control of pollution from its key precursors VOCs. In recent years, the Beijing-Tianjin-Hebei region and surrounding provinces and cities have strengthened online monitoring of volatile organic compound emissions from key industrial sources, and installed and networked online monitoring facilities for fixed pollution sources of volatile organic compounds (VOCs) in key industries, unorganized emission online monitoring facilities, and over-standard alarm sensing devices. Put forward clear construction requirements.

VOCs emission monitoring mainly involves petrochemical industry, organic chemical industry, pharmaceutical manufacturing, industrial coating, machinery manufacturing, packaging and printing, electronic production, synthetic leather, coatings and paints, clothing processing, furniture manufacturing, adhesives, shoemaking, oil product storage and transportation industry. At the same time, emissions have the characteristics of unorganized escape and organized emissions from fixed pollution sources, many types of pollutants, large concentration changes, and uncertain emission time. The TVOC automatic monitoring and alarm system can provide real-time data on the total amount of TVOC and key monitoring factors of various industries, and can be connected online in real time with the competent departments of the Environmental Protection Bureau to realize real-time monitoring of total TVOC emission reduction and sewage charges.

2. Monitoring scope

The monitoring factors of this product are benzene, toluene, xylene, styrene, trichlorethylene, chloroform, trichloroethane, diisocyanate (TDI), etc.

The product is based on the "Technical Requirements and Detection Methods for Continuous Monitoring Systems for Ambient Air Volatile Organic Compounds Chromatography" (HJ 1010-2018)

"Notice on Strengthening the Monitoring of Volatile Organic Compounds in Exhaust Gas from Stationary Pollution Sources"

"Gas Chromatography Method for Determination of Total Hydrocarbons, Methane and Non-Methane Total Hydrocarbons of Exhaust Gas from Stationary Pollution Sources"

Online monitoring of TVOC organized emissions, total organic matter analysis, unorganized emissions, and TVOC flue gas online monitoring;

Total organic matter analysis in online monitoring before/after TVOC recycling and sorting;

Circulating fluidized bed boilers of thermal power plants are used for flue gas monitoring in combustion control rooms;

The steel rolling heating furnace in the steel plant is used to detect the furnace gas atmosphere when reducing the oxidation burning loss or the thickness of the decarburization layer;

Full hydrogen heat treatment furnace is used to detect whether the radiant tube is burned through and leaks; vehicle exhaust emission detection;

Other industrial kilns and waste incinerator exhaust gas monitoring. Industrial emissions of organic volatile waste gases;

Quantitative and qualitative analysis of total hydrocarbons (THC) and non-methane total hydrocarbons (NMHX), benzene, dimethylformamide, alkanes, alkenes and cyclic aromatic hydrocarbons in emission pipelines;

Complex toxic and harmful organic matter in industrial areas or chemical industry areas;

Online monitoring of VOC pollution sources;

Online monitoring of odorous organic sulfides;

Online monitoring of unorganized emissions at multiple points at the factory boundary

3. Structural composition

4. Monitoring principle

electrochemical, organized

2. Product features of VOC online monitor

1. High-performance sensor with good anti-interference performance, stable and reliable pre-processing unit, using diaphragm pump technology.

2. The LCD panel display adopts a 7" large touch screen display with a full Chinese interface and a human-computer interaction interface for easy operation. It displays work data intuitively.

3. Wireless 4G network transmits data, the transmission is stable and reliable, and the software has automatic calibration function.

4. Supports backflush function. The detection site has on-site audible and visual alarm functions, and the gas concentration will alarm immediately when the gas concentration exceeds the standard, which is a safety guarantee for dangerous site operations.

5. Independent air chamber, no on-site calibration is required when replacing the sensor, and key parameters of the sensor are automatically identified.

6. Using microprocessor technology, it has fast response speed, high measurement accuracy, good stability and repeatability.

7. The detection site has on-site audible and visual alarm functions. If the gas concentration exceeds the standard, it will alarm immediately, which is a safety guarantee for dangerous site operations.

8. On-site large-screen multi-parameter LCD display with backlight can intuitively display gas concentration, type, unit, working status, etc.

9. Independent air chamber, no need for on-site calibration when replacing the sensor, automatic identification of key parameters of the sensor

10. Full range temperature digital automatic tracking and compensation to ensure measurement accuracy

3. Product parameters of VOC online monitor

4. VOC online monitor cloud platform

1. Perfect docking ability of government supervision platform

2. Multi-tasking, high concurrency, low latency

3. Multi-platform simultaneous viewing and multi-dimensional retrieval capabilities

4. Data highlighting alarm and SMS push capabilities

5. Multi-level management and permission allocation capabilities

6. Support large-screen data display and customized development