Products/ Methane Detection System
Methane Detection System
Our advanced methane leak detection solutions, ensuring safety and efficiency in leak monitoring, offer three innovative methods tailored to meet varying operational needs:
Vehicle-Mounted Laser Methane Leakage Inspection System: This system provides rapid, large-area inspections while in motion, significantly enhancing efficiency.
UAV-Borne Laser Methane Leak Detection System: Utilizing drones, this cutting-edge technology allows for precise detection in hard-to-reach areas, minimizing downtime and enhancing safety.
Hand-Held Laser Methane Remote Detector: This portable device is designed for quick and easy inspections, empowering personnel to identify leaks accurately on-site.
Each method offers unique advantages, ensuring effective and reliable methane leak detection for our valued customers.
System Composition
Gaseous monitoring: CH4, C2H6
System Methods: Vehicle-Mounted, UAV-Borne, Hand-Held
The Methane Detection System is equipped with the laser methane remote detector. The laser methane remote detector is an innovative device designed for the efficient and accurate detection of methane gas from a distance. This technology works by emitting two distinct laser beams: one being a visible indicator laser that marks the detection area—often in red or green—and the other an invisible infrared laser that specifically measures the concentration of methane present in that area, expressed in parts per million multiplied by meters (ppm·m).
Methane molecules absorb specific wavelengths of light: The absorption of light by a transparent medium, such as a methane cloud, is directly related to both its thickness and concentration. Leveraging this fundamental principle, we can deploy a light beam of a specific wavelength to safely navigate through an area filled with leaking methane gas.
As the light penetrates the gaseous mass, it experiences varying degrees of attenuation, which allows us to gauge the concentration of methane present. Notably, this technique exhibits unique selectivity; it responds only to methane, ensuring that other gases do not interfere with the measurements.
The unit concentration can be understood as the level of methane molecules aligned along the direct line of sight between the telemeter and the reflective target. Imagine these methane molecules being either compacted or spread out uniformly along an area with a thickness of one meter, creating a simplified model of their distribution within that space.
This conceptualization helps clarify how methane concentration is effectively represented in a specific volume, making it easier to comprehend the dynamics at play in real-world applications. By visualizing it this way, we can grasp how the measurement process translates this distribution into meaningful data that informs monitoring and detection efforts.
The instrument measures a methane gas mass with a thickness of 5m and a concentration of 20ppm on the detection line as 100ppm·m, which is equivalent to the gas mass being “compressed” to a thickness of 1m and a concentration of 100ppm.
For an air mass with a thickness of 0.5 m and a concentration of 200 ppm on the detection line, the instrument also measures a value of 100 ppm·m, which is equivalent to the air mass being “expanded” to a thickness of 1 m and a concentration of 100 ppm.
The beam generated by the collimated laser does not remain a perfectly straight line; instead, it gradually diverges and weakens as it travels over distance, leading to a conical shape. For instance, at a distance of 100 meters, the detection beam’s spot size expands to roughly a circle with a diameter of 1 meter. As the distance increases further, the area being analyzed becomes too small, which can result in some of the laser not passing through the gas. This effect may cause the reflected signal to return to the instrument, yielding measurement values that are lower than the actual concentration or, in some cases, making detection altogether ineffective.
When assessing high-rise residential buildings, a significant elevation angle can create an elliptical light spot that may cover multiple floors, leaving the target area inadequately illuminated. This results in misleadingly low measurement values. Additionally, when attempting long-distance detection, factors such as wind, rain, or fog can scatter the laser, diminishing the amount of light that reflects back to the device. Consequently, the reflected intensity can be too weak, leading to further inaccuracies in detection values.
Principle of pulsed fluorescence method:
When the sample is irradiated with ultraviolet light with a wavelength of 190-230nm, SO2 absorbs ultraviolet light and produces an energy level transition, and SO2 changes from the ground state to the excited state, that is:
SO2＋hv1→SO2*
The excited state SO2* is unstable and instantly returns to the ground state, emitting fluorescence with a peak of 330 nm, i.e
SO2*→SO2＋hv2
The intensity of fluorescence is proportional to the concentration of SO2, and the concentration of SO2 can be determined by measuring the intensity of fluorescence with a photomultiplier tube and an electronic measurement system
Function: sampling, filtration, heat preservation, anti-corrosion, dilution, backflushing
Dilution ratio: 1:100
Heating temperature: 180°C
Filtration precision: 2μm
Probe temperature, dilution gas pressure and vacuum data show zero air purging to extend the probe maintenance cycle; The gas circuit module and the circuit module are designed separately, which is convenient for later maintenance;
The high temperature in the flue will not affect the dilution core, and the dilution core should still be heated to 180 °C to ensure that the water in the flue gas does not precipitate, and the probe is heated to reduce the adsorption of the gas to be measured in the pipeline; The sampling volume is small, the probe is not easy to block, and the service life of the probe filter is prolonged;
The whole process of hot and humid sampling avoids the measurement interference caused by the dissolution of the components to be measured in water;
The dilution method can lead to more stable readings, resulting in less frequent calibration, saving time and resources. Many modern systems feature intuitive interfaces and automated functions that simplify operation.
This protective measure helps prolong the life of monitoring equipment, ultimately reducing maintenance and replacement costs. By diluting the gases before reaching the analyzers, the risk of damaging sensitive components is significantly reduced.
The accurate measurement and reporting capabilities of dilution extraction CEMS ensure that data submitted to regulatory agencies are reliable. Continuous monitoring allows operators to detect and address emissions issues promptly, enhancing compliance.
This technique ensures that the sample is representative of the overall emissions, allowing for precise monitoring of pollutants. By diluting the sample gas at a controlled ratio, variations in concentration that could lead to inaccuracies in measurement are minimized.
Accurate monitoring aids in identifying and mitigating excessive emissions, thereby helping to minimize environmental impact. The ability to monitor emissions precisely supports companies in their commitment to sustainable and responsible operations.
The system can be utilized in diverse industrial processes, from power generation to manufacturing, ensuring compliance with environmental regulations. This system effectively measures a variety of pollutants, including NOx, SO2, O2, CO, and CO2, using different analyzers tailored to specific gases.
The dilution system significantly enhances system reliability while reducing operational and maintenance expenses. Its average operating cost is only 1/3 to 1/2 of a direct sampling system.
Instant dilution within the probe eliminates condensation effects, removing the need for heated or insulated sampling lines. This prevents potential instrument damage caused by condensation
The accurate measurement and reporting capabilities of dilution extraction CEMS ensure that data submitted to regulatory agencies are reliable. Continuous monitoring allows operators to detect and address emissions issues promptly, enhancing compliance.
This technique ensures that the sample is representative of the overall emissions, allowing for precise monitoring of pollutants. By diluting the sample gas at a controlled ratio, variations in concentration that could lead to inaccuracies in measurement are minimized.
Rapid sample gas transmission, reduced maintenance workload, and minimal consumable usage. Additionally, it supports data processing and report generation
The system can be utilized in diverse industrial processes, from power generation to manufacturing, ensuring compliance with environmental regulations. This system effectively measures a variety of pollutants, including NOx, SO2, O2, CO, and CO2, using different analyzers tailored to specific gases.
Under what circumstances may remote laser detection be restricted?
Rain, fog, snow or sand can reduce the penetrating power of the laser, lowering detection accuracy and effective distance.
Sunlight or other strong light sources may interfere with the laser signal, affecting analysis by the receiver.
If other gases with similar absorption spectra are present in the environment, this may lead to misjudgment or reduced accuracy.
If the distance is too far, it may lead to signal attenuation or scattering, affecting the detection result.
Equipment that is not calibrated regularly may experience a decrease in sensitivity or measurement deviation.
It is essential to integrate effective sample conditioning units that can remove moisture, particulate matter, and other contaminants. Maintaining appropriate temperatures within the system is vital to prevent condensation, which can skew results. Systems must be insulated and, if necessary, heated to avoid inaccuracies due to temperature fluctuations.
Standard dilution ratios, such as 100:1, may be employed to mix the flue gas with clean, dry air. This dilution must be precisely controlled to match the requirements for specific gases being detected. Incorporating adjustable dilution mechanisms allows operators to modify settings based on real-time conditions of the gas being monitored and regulatory requirements.
Analyzers must be selected for their robustness and capability to function optimally in the specific environmental and operational conditions of the facility. Different gases require distinct analytical techniques.
Incorporating self-diagnostics can alert operators to system malfunctions before they impact data collection. Designing systems that are straightforward to maintain, with easily accessible components, can help ensure technicians can perform regular checks and repairs without significant downtime
The design should facilitate continuous real-time monitoring capabilities to allow for immediate responses to emissions changes, enhancing operational control.Systems must support seamless integration with data reporting tools to ensure accurate compliance documentation can be generated without manual entry, thereby minimizing human error.
The design must consider varying environmental parameters and include features that allow the system to adapt. For instance, if ambient temperatures are prone to fluctuation, temperature-regulating equipment needs to be factored into the CEMS design. Robust Material Selection: Materials used in the construction of sampling lines, probes, and other components must be resistant to corrosion and degradation from environmental influences to enhance longevity and reliability.
The system features an omnidirectional PTZ integrated camera along with a high-performance laser sensor, making it ideal for detecting leaks in pipelines that run beneath sidewalks and green spaces. By positioning the detection equipment high on the vehicle’s roof, the system minimizes blockages from detection light and significantly reduces false alarm rates. It works by drawing in ambient air into a dedicated chamber within the vehicle, where it analyzes the concentration of methane, even in trace amounts. Additionally, the interplay between drifting air masses and aerial detection capabilities enhances the system’s effectiveness in identifying small leaks, ensuring comprehensive monitoring and reliable results.
The advanced ESEGAS laser telemetry technology empowers the U series with an impressive response time of just 0.025 seconds and a remarkably low static detection limit. This enables effective detection of leakage air masses up to an altitude of 120 meters. It offers two automatic inspection modes: area scanning and route cruising. Users can easily create cruise tasks by importing KML files into GIS routes or simply click on specific locations, such as villages or stations, to initiate leakage scans. Designed to be exceptionally lightweight, the system complies with the “Interim Regulations on the Flight Management of UAV,” permitting it to operate in airspace under 120 meters without requiring specific flight permissions.
The design of the “Flashlight” prioritizes a user-friendly exterior that facilitates easy handling and extended use, embodying the concept of “A reliable tool in the inspector’s hand.” This innovative flashlight seamlessly blends ergonomics with outstanding performance. Its aluminum alloy body, treated with hard anodizing, enhances durability and provides a comfortable grip. Featuring a minimalist design with a single button, it ensures immediate usability, allowing frontline workers to concentrate on their inspection tasks without distraction from parameter adjustments. Additionally, its long-lasting battery, fast-charging capabilities, and Type-C interface guarantee reliability, even in demanding alpine environments, ensuring a full day of functionality.
| Model | A10R U10 L10 | Detection object | A10R: Methane (CH4) U10: Methane (CH4) L10: Methane (CH4) |
|---|---|---|---|
| Measuring principle | Laser absorption spectroscopy | Detection of laser grade | Class I Human Eye Safety |
| Static detection limit | A10R: 5ppm·m U10: 3ppm·m L10: 5ppm·m | Indicates the laser grade | A10R: Class IIIR Do not look directly or at the instrument observation U10: Class IIIR Do not look directly or at the instrument observation L10: Class IIRI Do not look directly or at the instrument observation |
| Response time | A10R: 0.025s U10: 0.025s L10: 0.1s | Case protection grade | A10R: P66 U10: L10: |
| The farthest detection distance | A10R: 150 m U10: 150m L10: 100m | Working temperature | A10R: -40~60°C U10: -20~50°C L10: -20~50°C |
| Concentration range | A10R: 0~50,000ppm·m U10: 0~50,000ppm·m L10: 0~100,000ppm·m | Working humidity | <98% RH, and no condensation |
| Cloud platform movement range | A10R: Horizontal 360° continuous and 120° pitch U10: L10: | Power supply and power consumption | A10R: 12V DC 50W U10: L10: |
| Interior mainframe size | A10R: 280x105x140mm U10: L10: | Size of roof equipment | A10R: 184x205x228mm U10: L10: |
| Weight of the interior host | A10R: 3kg U10: L10: | Weight of roof equipment | A10R: 3.7kg U10: L10: |
| Adapted models | A10R: U10: DJIM350 Series L10: | Size (mm) | A10R: U10: 174x89x163 L10: |
| Main Unit Dimension | A10R: U10: L10: 170x52x52mm | Weight | A10R: U10: 0.7kg L10: |
| Power supply and endurance | A10R: U10: L10: Lithium battery>10h | Main Unit Weight | A10R: U10: L10: 0.38kg |
| Explosion-proof Grade | A10R: U10: L10: Exib llC T4 Gb | Enclosure | A10R: U10: L10: IP68 |
