Intelligent integrated methane online monitoring station JYB-OU

Introduction:

Intelligent integrated methane online monitoring station JYB-OUIt is specifically designed for continuous measurement of the atmosphere/Automated monitoring equipment for methane (CH4) concentration in exhaust gas and simultaneous calculation of emission flux. Its core is used for greenhouse gas background observation, industrial unorganized emission, oil and gas/landfill leakage, and carbon sink flux calculation. It is classified into three types based on accuracy: conventional (ppm level), high-precision (ppb level), and flux station.

Technical specifications

1. Power input: 220AC

2. Working power: 40W

3. Sensor type: electrochemical;

4. Gas type: methane, NH3，H2S, Methyl mercaptan, methyl sulfide, trimethylbenzene, foul odor;

5. Sampling method: diffusion type;

6. Gas range: Methane:0 100% LEL（5% vol）

Ammonia 0-500.00mg/m3 Hydrogen sulfide 0-500.00mg/m3 Odor: 2000 dimensionless

Temperature: 0-150 degrees Celsius

Intelligent integrated methane online monitoring station JYB-OUEquipment performance parameters

These parameters directly determine the accuracy and timeliness of methane concentration monitoring, and are the core basis for equipment selection.

measurement range

The concentration differences in different scenarios of the landfill site need to be covered:

Low concentration monitoring (factory boundary, surrounding environment):0-5% vol or 0-100% LEL (the lower explosive limit of methane is 5% vol, which is 100% LEL);

High concentration monitoring (gas guide wells, gas gathering stations):0-100% vol， Suitable for biogas purification and resource utilization scenarios.

Measurement accuracy and repeatability

Accuracy: Requirements for conventional online devices ± 0.5%~± 3% FS (full range), high-precision laser equipment can achieve ± 0.1% FS;

Repeatability:≤± 1% FS, ensuring consistent measurement data multiple times and avoiding false alarms.

response time

Fixed monitoring equipment:T90 (time to reach 90% true value) ≤ 10s, meeting real-time monitoring requirements;

portable/Unmanned aerial vehicle inspection equipment: T90 ≤ 5s, suitable for fast mobile detection scenarios.

resolution

Low concentration scenes require high resolution, such as0.01% vol or 1% LEL, capable of capturing trace leaks; The resolution of high concentration scenes can be relaxed to 0.1% vol.

Cross interference suppression capability

Landfill site existsInterference gases such as CO ₂, hydrogen sulfide, and water vapor require anti-interference design for the equipment. For example, NDIR infrared equipment needs to be equipped with filters, and laser equipment needs to select methane characteristic absorption spectral lines to ensure accurate measurement of methane even in high concentration CO ₂ environments (where CO ₂ accounts for about 40% -60% of landfill gas).

Environmental adaptability parameters

Landfills have the characteristics of high humidity, high dust, large temperature difference, and flammability and explosiveness, and the equipment needs to meet strict environmental adaptation requirements.

Application scenarios: agriculture, animal husbandry, industry, mining, livestock farms, garbage dumps, etc