Water Supply System Based On Frequency Conversion And Fieldbus Technology Research

Living water is the lifeline of the people in cities and towns. The high efficient supply of excellent-quality water is the most imperative task in the face of the water supply enterprises. By bringing the most advanced technology into the design of the control system of the water-plant production network , constructing high-tech water-supplying enterprises has not only very large economic values, but also momentous social significance.The present paper mainly aims at the water supply system the energy conservation to fall consumes, improves the water supply quality and the water supply reliability, realizes to the water supply system optimized control, provides modernized for the water supply system the monitoring system and the economical movement method. How mainly studies uses the frequency conversion constant pressure water supply to achieve the energy conservation and the enhancement water supply quality, and the optimized control water pump group's velocity modulation movement, has conducted the control principle research, the observation and control model establishment and the algorithm determination, changes, frequency changer, PLC and field bus hardware shaping and the system integration and so on delivering, the PLC observation and control procedure programming, the PROFIBUS field bus applies in work and so on water supply system equipment shaping and design, during the research system stable, reliable and so on the automatic control technology introduces the digital PID control this system, by enhances the water supply system the control performance and the natural price ratio; Meanwhile introduces the man-machine kneading board in the system, by enhances the system the feasibility. At present this article studies the design frequency conversion constant pressure water supply system oneself after is utilized in place and so on water works, inhabitant plot, turbo-charged pumping station, because its function comprehensive, the ease of operation, the data communication reliable, the performance stable, the management is highly effective, has obtained the good economic efficiency and the social efficiency.