Применения: Chlor - Alkali
Passing electrical current through a sodium chloride and water solution releases chlorine gas. Three different types of process reaction vessels or cells are used: Mercury, Diaphragm, and Membrane. Electrical power costs range from 35% to 70% of the total cost of producing chlorine. Accurate electrical monitoring of chlorine processes improve process performance, cost visibility, environmental compliance, and safety.

Process Applications
Mercury and Diaphragm processes in particular utilize a number of rectifiers in parallel to obtain the required current levels. In order to obtain the electrical information needed for effective process control, a single measurement of total process current is ideal.

High accuracy measurement of current and voltage are needed to…
  • Provide current data to process systems for optimum control performance
  • Detect unexpected changes in process efficiency
  • Accurately evaluate impact of intended / trial process changes
  • Objectively compare multiple process lines and smelters

    Accurate multi-point measurement of current and voltage are needed to…
  • Control anode position in mercury cells for cost efficiency, safety and environmental compliance
  • Monitor voltage drops in membrane cells for efficiency, condition and safety purposes

  • Links to applicable DynAmp product pages :
    LKCO New high accuracy total process current measurement utilizing fiber optic sensing technology
    LKP for high accuracy total process current measurement
    Upgrades to improve performance of existing LKP, CM, FM & CXM systems
    AMACS anode monitoring and control for mercury cell processes
    VDAS voltage monitoring for membrane process health and safety

    Power Conversion Applications
    Chlor-Alkali processes operate at their most efficient when the electrical supply is both stable and reliable. Current instability leads to numerous process efficiency problems thereby increasing costs. Such instability can cause process cell damage and even endanger staff and facility.

    Highly dependable and responsive measurement systems are needed to
  • Provide current data to rectifier control for optimum performance and stability
  • Provide overall multi-rectifier balance indication
  • Provide a backup ‘totalized’ current measurement signal for mainline current
  • Sense power conversion equipment failures to protect process, equipment, staff
  • Analyze rectifiers condition to determine condition & maintenance requirements

    Links to applicable DynAmp product pages :
    LKP for high accuracy rectifier output measurement, control and balance
    Upgrades to improve performance of existing LKP, CM, FM & CXM systems
    LKAT for rectifier output measurement, control, balance with over/reverse current protection
    BCMR to protect rectifiers from over/reverse current events
    BRP New basic reverse current protection for rectifiers
    RCEM for internal rectifier analysis and condition monitoring
    Clamp-On for portable measurement

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