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System Description:
This CEMS adopted the ADAM-5000/485, ADAM-4000, ADAM-5000 and UNO-2160 modules. ADAM-5017 and ADAM-4017+ modules are
connected to all the ues and work as data acquisition receivers; collecting temperature, humidity, and pressure data. 3rd party analyzers
will collect and analyze TOC and CDO data via special sensors. In the event of any abnormal situation, the ADAM-5050 and ADAM-4050 will
send an alarm and control the valve on/o . As a data microprocessor, UNO-2160 will store the acquired data, which will be transferred to
Central Station Server at the Department of Environmental Protection via modem.
Conclusion:
A thermal power plant is a very harsh working environment. Fortunately, the UNO-2160 is designed as a rugged, fanless and
compact unit for such applications. Its highly reliable operation reduces future maintenance costs, and additionally it accepts popular
programming languages such as VC and VB so that engineers can easily work with it. ADAM-4000 modules also integrate Modbus and
ASCII commands for direct communications. By combining the UNO-2160, ADAM-4000, and ADAM-5000 modules in this way, the new
CEMS provides reliable, accurate, and e cient service for our customer.
System Diagram
Continuous Emission Monitoring System in a
Thermal Power Plant
Environmental Monitoring
Beijing, China
Project Introduction:
In China, a CEMS (Continuous Emissions Monitoring System) is required in power plants to
monitor air pollution. The Department of Environmental Protection monitors and controls
the air pollution through these units to charge corporations according to the data. With
Advantech’s UNO-2160, ADAM-5000/485, and ADAM-4000 modules, a new CEMS unit
combines reliable operations with accurate data analysis.
System Requirements:
The Chinese Government is taking steps to control their air pollution. One of these steps has made it a requirement to setup a CEMS in
every power plant to monitor air pollution emissions. This particular customer was using an outdated IPC system which was causing them
problems with inaccurate data and unreliable operation.
They needed to set up a new CEMS to reach the following goals:
• They wanted to have real-time monitoring of the emission levels, including the smoke, sulfur dioxide, and other chemicals from each
stack. Additionally, all recorded data needed to be transferred to the Control Center at the Department of Environmental Protection.
• They wanted a reliable system to work as a data terminal to analyze, store, and distribute the data e ectively.
Project Implementation:
UNO-2160:
Celeron 400 MHz Universal Network
Controller with PC/104 Extension
ADAM-5000/485:
4-slot Distributed DA&C System for
RS-485 Network
ADAM-5017:
8-channel Analog Input Module
ADAM-5050:
16-channel Universal Digital I/O Module
ADAM-4017+:
8-channel Analog Input Modules with Modus®
ADAM-4050:
15-channel Digital I/O Module
(54 strony)
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