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May 27, 2008

Emerson to digitally automate two glass plants in China

Gerald Ondrey

Emerson Process Management (Bredbury, Stockport, U.K.; has been selected, by the Zhejiang Changxing Glass Co., Ltd. and the Zhejiang Pinghu Glass Co., Ltd., to engineer and install PlantWeb digital architecture with DeltaV automation systems and Emerson’s intelligent field devices in new glass plants in the Zhejiang Province. The projects will be the first for plant-wide use of FOUNDATION fieldbus in China’s glass industry.

A core component of PlantWeb architecture, Emerson’s DeltaV digital automation systems will power the Smart Plant operation with the most advanced automation technology in the glass industry. In addition to installation savings, the PlantWeb architecture with FOUNDATION fieldbus is expected to improve product output and quality through digital reliability and functionality, highly accurate measurements, and advanced diagnostics from the intelligent field devices. 

Zhejiang Changxing Glass is investing RMB800 million (73 million euros) in its new plant, which went into operation in March, 2008. This plant has a designed capacity of 450 ton/d of float glass to meet the rising demand for building materials created by China’s ongoing construction boom. The Zhejiang Pinghu plant is expected to produce 500 ton/d of ultra-thin glass, starting in June 2008, from a total investment of RMB600 (55 million euros). Ultra-thin glass is used for LEDs and other electronics applications.

In addition to the DeltaV automation systems for each plant, Emerson is supplying smart Rosemount temperature and pressure transmitters, Fisher control valves equipped with FIELDVUE digital valve controllers, and its AMS Suite predictive maintenance software.

Diagnostic data produced by the smart field instruments is accessed over the fieldbus networks by AMS Device Manager which maintains a complete device database, processes acquired information, presents it in graphical format for use by both maintenance and operating personnel, and automatically documents interaction with field devices. This software will be useful during instrument commissioning. Using it as a means of communicating with the field instruments, technicians will spend as much as two-thirds less time for commissioning than with time-consuming conventional procedures. Beyond commissioning, AMS Device Manager’s predictive diagnostics will improve plant availability and performance.

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