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Three basic process control schemes
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MECO MASTERedge Feed Water Level Control
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The feed water level in the MECO Multiple Effect Still is maintained with a PID control loop. The proper feed water level is maintained in the evaporator even under fluctuating feed water pressure conditions. The PID control loop senses the actual level and adjusts the flow rate of feed water up or down to maintain the level at the desired point. Integrated into the still, this system provides precise control without the use of space-consuming external break tank / feed pump systems or external regulators. All loop parameters can be viewed from the unit's operator interface.
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MECO MASTERedge Condenser Level Control
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The distillate level in the MECO Multiple Effect Still is also maintained with a PID control loop. The proper distillate level is maintained in the condenser under all conditions. The PID control loop senses the actual level and adjusts the flow rate of distillate up or down to maintain the level at the desired point. Integrated into the still, this system provides precise level control providing a pressurized distillate output rather than an atmospheric pressure, gravity driven stream. All loop parameters can be viewed from the unit's operator interface.
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MECO MASTERedge Distillate Temperature Control
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The distillate temperature from the MECO Multiple Effect Still is maintained with a PID control loop. The proper distillate temperature existing the still is maintained under all conditions. The PID control loop senses the actual temperature and adjusts the flow rate of cooling water up or down to maintain the temperature at the desired point. The loop parameters can be viewed from the unit's operator interface.
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MECO MASTERedge Plant Steam Pressure Control (for pure steam option)
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The pressure of the pure steam produced by the MECO Multiple Effect Still is maintained with a PID control loop. The proper pure steam pressure is maintained in the evaporator under all conditions. The PID control loop senses the actual pressure and adjusts the flow rate of plant steam up or down to maintain the pressure at the desired point. Integrated into the still, this system provides precise pressure control of the pure steam over the full range of pure steam demand. All loop parameters can be viewed from the unit's operator interface.
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