CEMS - Hệ thống quan trắc khí thải tự động

DCEM2000/2100 Opacity/Dust Monitor
In-situ, low maintenance devices for continuous monitoring of opacity/dust emissions

- % opacity or dust density in mg/Nm3
- Dual-pass, open-path transmissometer
- Integral auto zero and span check
- Dynamic misalignment check
- Full contamination check on all active optical surfaces
- Integral high efficiency air curtains for maximum uninterrupted service

The DCEM2000 and DCEM2100 provide a continuous measurement of opacity or dust concentration in flue gases by continuously measuring the transmissivity of visible light across a process duct or stack.

Its dual-pass optical arrangement is based on twin transmissometers measuring in opposing directions through the same section of the gas stream, providing not only an accurate average of the dust loading, but also providing a unique dynamic assessment of any misalignment errors due to stack movement.

The measurement of opacity or particulate (dust) emissions from a process stack by measuring changes in optical transmission is simple in concept, the monitor must be insensitive to any other factors that degrade the optical transmission such as contamination of optical surfaces or gross misalignment.

EnergyTech 301 - Dust Monitor

A low cost dust monitor using well-proven technology providing accurate and rapid results.
Being adaptable it can can be used on duct sizes from 250mm to 5m making the EnergyTech 301 a suitable sensor for a wide range of applications where a dust measurement is required.

Model D-CEM1000/1001 Opacity Monitor
Single Pass Transmissometer

The D-CEM1000/1001 Opacity Monitors consist of a visible light transmitter and receiver arrangement with digital data processing in a local display unit.
The monitors can display data in either opacity, extinction or dust density in mg/m3 or normalised dust density in mg/Nm3.

The D-CEM1001 possesses four analogue inputs for normalisation data; temperature, oxygen, pressure and water vapour.

- simple installation - high reliability - very low maintenance
- proven technology meets legislative requirements
- data in % opacity, mg/m3, mg/Nm3 dust
- lens contamination minimised by high-efficiency air purges

VCEM5000/5100 Flue Gas Flow Monitor
In-situ, low maintenance devices for continuous measurement of hot gas flow

Non-contact infra-red sensing
Continuous measurement
Suitable for hot and dirty gases
No limit on upper gas temperature
No moving components
High availability, low maintenance requirement

GCEM4000 Gas Analyser
CO, NO, NO2, NOx, SO2, CH4, HCl, N2O, CO2 & H2O

In-situ, low maintenance devices for continuous process and emissions monitoring.

Multi-species infrared absorption analyser - Accurate, reliable and low maintenance technology
In-situ stainless steel probe measurement - No sample lines required
Gas temperature and pressure sensors - On-board normalisation to standard reference conditions
Auto routine calibration - Zero calibration by air, span calibration using audit gas
Analogue and serial outputs - Export of data to SCADA, DCS and historian systems
MCERTS Certified - Meets QAL1 of EN14181

Model G-CEM4100 Extractive Flue Gas Analyser
Extractive Flue Gas Analyser

The G-CEM4100 is a hot extractive analyser for difficult flue gas monitoring applications. It uses infrared absorption spectroscopy to measure up to seven pollutant species in a single self-contained unit.

Many conventional extractive systems require the sampled gas to be cleaned and dried to a very high standard prior to analysis, invariably resulting in a high maintenance demand. Such elaborate pre-conditioning is not required; the G-CEM4100 creates ‘perfect’ duct conditions in a temperature controlled chamber within a separate free-standing, air-conditioned cabinet. Process gases are simply cooled (or heated) then transferred along a heated sample line, without further conditioning, to be measured using a CODEL multi-channel analyser housed in the cabinet.

Increasingly, environmental agencies demand that continuous emission analysers have the facility to prove their performance using known concentration audit gases. The G-CEM4100 provides the facility to automatically check and control zero using clean, dry compressed air (or N2). Where independent span checks are required, bottled gases of known concentration can be injected directly into the measurement chamber.

- multi-species infrared absorption analyser for up to seven gas species
- extractive system to local analyser with full zero & span verification using audit gases
- real-time normalisation for STP & H2O ppm, mg/m3 (measured) & mg/Nm3 (normalised)
- automatic calibration verification facility and full range of outputs & alarms
- 5 years+ data logging via pc software package remote access for diagnostic checks via modem
- full EMC & LVD approvals

SmartCEM System Overview
CO, NO, NO2, NOx, SO2, CH4, HCL, N2O, CO2, H2O, Dust and Gas flow

- Fully-integrated continuous emission monitoring system
- Severn gas species, dust and gas flow measurements
- Continuous data normalisation
- Data as ppm, mg/Nm3 and kg/hr
- Automatic calibration verification
- High reliability, low maintenance

SmartCEM is the ultimate solution for continuous monitoring of flue gas emissions. It is a fully integrated monitoring concept from the basic analysers and their calibration verification packages through to digital communications, data logging and automatic reporting.

At the heart of this concept is the SmartCEM station which contains all the analysers and monitors to provide comprehensive stack emission monitoring. The SmartCEM Station Control Unit (SCU) provides power to and communicates with the analysers and monitors within that station.

Data from up to 32 SmartCEM stations is transmitted via a serial digital link (CODEL SmartBUS) to the Central Data Controller where it is logged on a dedicated PC or assembled for onward transmission to a plant computer or DCS.

The dedicated SmartCEM system computer can be equipped with CODEL system software and an internet connection so that system operation can be monitored at all times remotely at the CODEL Customer Support Centre. In this way the expertise of the CODEL design and support teams can be quickly utilised to check that the system is operating correctly

SmartCem Emissions Monitoring Software

Emission Monitoring Software
SmartCem Emissions Monitoring Software provides the complete solution to data gathering and analysis on Codel-based monitoring systems.
With a simple installation and set-up routine, the program takes only minutes to load and configure and comes with a comprehensive on-board help feature.
For complete peace of mind there’s also a telephone help line

- detailed customised reports for Environmental Agencies (meets IPR requirements)
- user-configurable real-time & historical graphs; data export to popular applications
- multi-user networking capability; real-time normalisation of data; indefinite data-logging
- easy installation & set-up; user-friendly operation; suitable for Windows 9x/NT/2000/XP