Continuous Emission Monitoring Systems

Environmental & Facility Management Location: China

Project Introduction: Environmental protection is one of the important current topics in the industrial community. In 2007 China established the Polluting Prevention Regulation to limit its emissions, control pollution, and raise the standard of pollution monitoring. This regulation mandated that every power and industrial plant must adopt higher standards for pollution monitoring, which directly increased the demand for Advantech's ADAM-5000 Series.

System Requirements:
CEMS stands for the Continuous Emissions Monitoring System regulation, which was proclaimed by the National Environment Protection Bureau in China. It uses advanced and reliable technologies for photoelectric measurement and Ethernet communications to monitor and transmit data of the exhaust gases and emission volume.

In these investments, the CEMS system is designed to acquire and manage real-time data in exhaust gas discharged from the chambers of the fire power plants, thermal power plants, incinerator plants and the industrial kilns.

Project Implementation:

	UNO-2182	Intel Core 2 Duo UNO with 2 x Gbe, 4 x COM, DVI
	ADAM-5000/485	4-slot Distributed DA&C System for RS-485
	ADAM-5017	8-ch Analog Input Module
	ADAM-5050	16-ch Universal DI/O Module

System Diagram:

System Description:
CEMS is adapted to all kinds of boilers in Continues Emission Monitoring, which includes real time monitoring of the exhaust gas and emissions volume, and transmits the data to a central station in the EnvironmentalProtection Bureau. The CEMS project adopts Advantech products, including: Embedded Controllers (UNO) and Ethernet I/O Modules (ADAM-5000). The specialty of Fanless and anti-vibration guarantees the stable operation even in the harshest environment. MTBF is up to 60000 hours to greatly save maintenance costs.

Gas analyzer, dust analyzer and data acquisition processor are the 3 primary parts of CEMS. They are adopted of real-time continuous monitoring for the chroma of the primary pollutant, such as dust, SO2, NOx, in industrial boiler, industrial kilns and electric boiler. They also provide the parameters of gas temperature, pressure, flow, and O2 Cube. The system collects the data automatically and transmits the data to the central station and environment management division through internet. The staff also can get the real-time data and report through internet. This ensures that the national pollutant emission volume control project and acid rain control project are on the track, and provides the measurement for charging the polluters.

Conclusion:
The data acquisition processor is to collect the parameters of gas temperature, pressure, flow, and O2 Cube and so on. At the same time, it needs some digital I/O and processes the data automatically as well as save the data. Customer needs the PLC which can collect more simulation data, has bigger memory, and own more COM ports to connect with gas analyzer and dust analyzer.

Furthermore, Advantech provides convenience, compatibility, and time saving to customers. Customers can have one-stop shopping instead of lots of sourcing jobs. The compatibility will not be an issue among our software-hardware, software-software, hardware-hardware products, and it usually takes time to integrate many products in different brands.