Use of microprocessors for control, data aquisition and on line performance evaluation in a reverse osmosis plant
✍ Scribed by P. Glueckstern; M. Wilf; J. Etgar; J. Ricklis
- Publisher
- Elsevier Science
- Year
- 1985
- Tongue
- English
- Weight
- 430 KB
- Volume
- 55
- Category
- Article
- ISSN
- 0011-9164
No coin nor oath required. For personal study only.
✦ Synopsis
Design and implementation of microprocessor's control and data aqulsitlon in a large (over 3 MGD) reverse osmosis desalting plant will be reported. The RO plant desalts brackish water of about 6,000 ppm TDS salinity and supplies potable water to the town of Eilat.
The first desalting unit of the plant commenced operation in 1978. The control system of the plant was initially based on conventianal electromechanical relays, timers and counters. The measuring instruments gave local indication only. An evaluation performed a year ago indicated that in order to optimize the plant operation and to improve data aquisition, a modernization of the instrumentation and control system is required. Tile new control system is based on programable controlers (PLC) receiving digital and analoge signals of the field measured parameters through sensors and transmiters.
The PLC transfers the information into an industrial computer which controls the operation of the desaltlng plant according to the software package especially prepared for this plant. The control network includes also an on line personal computer for storage of historical data and reports generation. The new system is at the final stages of construction.