Products/ Mercury CEMS
Mercury CEMS LX-4000-Hg
ESEGAS engineered the Mercury Generator as a premium gas calibration platform serving environmental protection initiatives and industrial emission controls worldwide. This cutting-edge system enables precise calibration for urban air quality stations, indoor monitoring devices, and gas analyzer manufacturing QC processes.
System Composition
Gaseous pollutant monitoring: Total Gaseous Mercury, Elemental Mercury, Ionic Mercury.
Flue gas parameter monitoring: Flue gas temperature, pressure, and velocity.
System control device, data acquisition system: Industrial computer
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.
The sampling probe features a supersonic orifice that ensures a constant gas flow rate when the pressure differential across the orifice exceeds 0.46 times the upstream pressure. This condition is maintained as long as the vacuum level behind the orifice is greater than -53 kPa, regardless of changes in temperature or pressure. Venturi tube downstream of the orifice creates sufficient vacuum by directing the dilution air flow, enabling consistent gas intake. The entire process relies on aerodynamic principles, with stable operation ensured by a continuous supply of instrument air (0.6 MPa, 20 L/min).
The Venturi tube also acts as a flow restrictor, controlling the flow rate of the dilution air. Multi-stage pressure regulators maintain the dilution air at a consistent pressure (typically 0.35 kPa). Stable dilution air pressure not only ensures a consistent vacuum in the Venturi tube but also guarantees a steady flue gas intake, maintaining the overall dilution ratio.
The supersonic orifice minimizes the influence of temperature and pressure fluctuations on the dilution ratio. By operating at critical flow conditions, the orifice ensures that the volumetric flow rate of gas through it depends solely on the gas velocity, which is close to the speed of sound.
Calibration gas is introduced at the probe's front end and follows the same path as the sample gas to the analyzer. This method validates the consistency of the dilution ratio and eliminates system-wide errors, ensuring accuracy across the entire system.
The probe integrates a critical orifice (supersonic orifice) with a 0.1 µm fine filter to prevent dust blockages. 2.A Venturi tube, powered by pressurized clean air, generates the necessary vacuum. This system uses 3–7 liters of compressed air, which is directed through a nozzle to create suction, ensuring efficient and stable operation of the dilution system.
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 monitor is mainly composed of an “S”-type pitot tube detection head, pressure tube protection sleeve, differential pressure transmitter, back-blowing control valve, and other components.
| Items | Mercury Analyzer Ionic Mercury Generator | Principle | Mercury Analyzer: Cold Atomic Fluorescence (CACF) Ionic Mercury Generator: Mass Flow Meter Control Ratio |
|---|---|---|---|
| Range | Mercury Analyzer: 0~5μg/m3, 0~200μg/m3 Ionic Mercury Generator: | Gas Flow | Mercury Analyzer: 800sccm ±10% Ionic Mercury Generator: |
| Zero point noise | Mercury Analyzer: ≤0.2ppb Ionic Mercury Generator: | Range noise | Mercury Analyzer: ≤lppb Ionic Mercury Generator: |
| Response time | Mercury Analyzer: <90s, (T90) Ionic Mercury Generator: ≤60s | Zero point drift | Mercury Analyzer: No more than ±1% F.S. Ionic Mercury Generator: |
| Range drift | Mercury Analyzer: No more than ±1% F.S. Ionic Mercury Generator: | Operating temperature | Mercury Analyzer: -20°C to 50°C Ionic Mercury Generator: 5℃~40℃ |
| Output interface | Mercury Analyzer: 8 channels, output content configurable, 24VDC (Relay Output Interface); 4 channels, output content configurable, max. load carrying capacity <800 ohms (4-20ma Output Interface) Ionic Mercury Generator: RS232, RS485 | Product dimensions | Mercury Analyzer: 223x432x620mm Ionic Mercury Generator: 223×432 x620mm |
| Dilution gas flow range | Mercury Analyzer: Ionic Mercury Generator: 0~20 SLPM | Standard gas flow range | Mercury Analyzer: Ionic Mercury Generator: 0 ~100sccm |
| Flow rate linearity | Mercury Analyzer: Ionic Mercury Generator: ±(0.5 ~ 1)%F.S. | Flow control repeatability | Mercury Analyzer: Ionic Mercury Generator: +0.5%F.S. |
| Output elemental mercury concentration | Mercury Analyzer: Ionic Mercury Generator: 0-150ng/min | Operating humidity | Mercury Analyzer: Ionic Mercury Generator: 0~95%RH |
| Power supply | Mercury Analyzer: 220 VAC /1000W Ionic Mercury Generator: (200~240)VAC | Displayed Value Error | Mercury Analyzer: No more than ±5% Ionic Mercury Generator: |
| Repetitive | Mercury Analyzer: ≤1% Ionic Mercury Generator: | Communication Interface | Mercury Analyzer: 1 RS232, 1 RS485 Ionic Mercury Generator: |