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水处理
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        成功案例: 水处理

        Anonymous (France)

        成功案例: 水处理 有效节能20% ,数据由SEM生产经理基于6个月的测试结果提供。

         

        I. CUSTOMER ENVIRONMENT / PROJECT CONTEXT

         

        Customer profile:

         

        •  1.4 million people supplied
        •  185 million m3 of drinking water supplied per year, 48 treatment plants
        •  91 million m3 of wastewater treated per year, 70 treatment plants
         

        Customer objective and constraints:

         

        • Improve follow-up of optimum water flow profile in a pumping station at the output of a drinking water treatment plant (in Aubagne, near Marseille),
        • Improve process efficiency by smoothing water flow,
        • Energy savings,
        • Find a compromise between service quality and energy savings and avoiding as much as possible jolts of pressure on water distribution.
         

        II. SOLUTION IMPLEMENTATION

         

        Implementation methodology (main phases):

         

        • 1. analyse customer request in terms of process management, smoothness of operation and energy savings,
        • 2. estimate possible energy savings with implementation of variable speed drives
        • 3. commercial offer
         

        Duration:

        6 months

         

        Solution overview (services, products, systems, architectures...) :

         

        • 1. replacement of direct on-line starters by variable speed drives
        • 2. two independent pumping systems, each one with 3 pumps in parallel (one pump in redundancy)
         

        How did we estimate the energy savings (methodology, tools, ...)

         

        •  Energy savings have been calculated by comparison of energy consumption before and after implementation of variable speed drives, during two comparable periods: July to November, 2007 and 2008,
        • Significant variable: number of kWh per m3
         

        III. RESULTS / ACHIEVEMENT

         

        Customer benefits:

         

        •   20% energy savings!
        • Improved process efficiency and easier process management
         

        Customer testimonies (Verbatim):

         

        "The major benefit of variable speed drives is the better process control. Energy savings are the icing on the cake" 
        Mr Emmanuel Guiol, responsible for Water production

         

        Schneider Electric differentiating values VS competitors:

         

        •  Long term partnership
        •  Complete Power and Automation offer
        •  Local service team
        •  Strategic account approach
         
         
         
         
         

        解决方案简述

        主要产品和系统:
        • Drives for pumps and fans 0,75 > 630 kW: Altivar 61