Odor Preface
Odor refers to all gaseous substances that stimulate the olfactory organs, cause unpleasantness and damage the living environment. According to the emission standards of odor pollutants, the control indicators of odor pollutants include ammonia, trimethylamine, hydrogen sulfide, methyl mercaptan, methyl sulfide, and dimethyl sulfide. The concentration of disulfide, carbon disulfide, styrene and odor, the above nine substances are very harmful to the human body. At the same time, in view of the complexity of the source of malodor and the characteristics of the interval between discharges, the chemical parks, garbage treatment plants, sewage treatment plants, pharmaceutical factories, breweries, textile factories, cement plants, livestock and poultry farms that are prone to produce malodors are targeted. In areas, the installation of online monitoring equipment is particularly important.
Recently, Yiyuntian installed 4 sets of odor online monitors for an environmental protection company in Guangxi, which are mainly used to monitor waste gas (odor) in garbage disposal workshops and plant boundaries. The whole set of equipment consists of a power supply unit, a sampling unit, a sample gas filter unit, a sensor detection unit, a data processing unit, a display unit and a transmission unit. Simultaneous monitoring of six kinds of gases including malodor, plus PM2.5, PM10, temperature, humidity, wind speed, wind direction, atmospheric pressure and other parameters; industrial-grade high-precision touch screen, perfect display of current concentration value, built-in large-capacity storage The chip can easily store long-term data and export data through a dedicated interface; compatible with communication protocols such as TCP, IP, MODBUS, DTU, etc., wireless data upload and docking with local environmental protection bureaus can also be used for wired remote transmission networking.
Project cases
Odor project of an environmental protection group company in Guangxi
Project picture
Product performance index
| Numbering | Detection factor | Molecular formula/abbreviation | Detection range | Resolution | sensor | Detection principle |
| 1 | Ammonia | NH3 | 0-50 ppm | 0.01 ppm | Imported from the United States | Electrochemistry |
| 2 | Hydrogen sulfide | H2S | 0-10 ppm | 0.001 ppm | Imported from the United States | Electrochemistry |
| 3 | Methyl mercaptan | CH4S | 0-10 ppm | 0.001 ppm | Imported from the United States | Electrochemistry |
| 4 | Carbon disulfide | CS2 | 0-10 ppm | 0.01ppm | Imported from Switzerland | Electrochemistry |
| 5 | Trimethylamine | C3H9N | 0-10ppm | 0.001ppm | original imported | Electrochemistry |
| 6 | Methyl sulfide | C2SH6 | 0-10ppm | 0.001ppm | original imported | Electrochemistry |
| 7 | Dimethyl Disulfide | C2H6S2 | 0-10ppm | 0.001ppm | original imported | Electrochemistry |
| 8 | Styrene | C8H8 | 0-10ppm | 0.001ppm | original imported | Electrochemistry |
| 9 | TVOC | TVOC | 0-100 ppm | 0.01 ppm | Imported from the UK | PID photoion |
| 10 | stench | - | 0-1000 | 1 | - | - |
| 11 | temperature | Temp | -40~120 ℃ | 0.1 ℃ | Imported from Switzerland | Digital sensor |
| 12 | humidity | RH | 0-100 %RH | 0.1 RH | Imported from Switzerland | Digital sensor |
| 13 | Wind speed | WS | 0-30 m/s | 0.1 m/s | - | mechanical |
| 14 | wind direction | WD | 0-360 ° | - | - | mechanical |
| 15 | noise | Noise | 0-120 dB | 0.1 dB | - | Digital sensor |
| 16 | PM2.5 | PM2.5 | 0-1000 ug/m3 | 1 ug/m3 | - | laser sensor |
| 17 | Air pressure | Pressure | 30～120k | 1kpa | - | High-precision MEMS digital air pressure sensor |
Service Content
1. Select product model: TH-2000 pretreatment system, MIC-600 fixed composite series;
2. Monitoring factors: ammonia, trimethylamine, hydrogen sulfide, methyl mercaptan, methyl sulfide, dimethyl disulfide, carbon disulfide, styrene and odor concentration, other parameters can be added;
3. Sensor: PID photoion, electrochemistry
4. Signal transmission: 4-20mA signal is connected to the DCS system for centralized monitoring;
Technical Support
From the early ideals of the project, repeated communication with Party A on technical solutions and a series of technical support, to the finalization of the final plan, Yiyuntian conducts technical evaluation, product customization, and fast delivery. Provide technical guidance and installation training on site. And provide complete technical services later.
The smart cloud monitoring platform is an open system with strong compatibility and is suitable for various application scenarios. Platform functions
1) It has functions such as data receiving, storage, and reporting;
2) With data and historical curve query, statistics and other functions;
3) The number of instruments and monitoring indicators that can be extended to the platform;
4) With remote diagnosis function;