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首页> 外文期刊>International journal of nuclear desalination >Process control in multi-stage flash desalination industry
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Process control in multi-stage flash desalination industry

机译：多级闪蒸淡化行业的过程控制

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摘要

Process control is an essential part of the desalination industry that requires to be operated under optimum conditions to increase the lifetime of the plant and reduce the unit product cost. Improved process control is a cost-effective approach to energy conservation and increased process profitability. The Multi-Stage Flash (MSF) plant involves many complicated operations related to steam, chemicals and seawater. These include variable capacity, slow dynamics, deadtime characteristics due to certain load changes, significant effects of small deviations from design conditions on plant operation, effects of power plant output conditions on the desalination plant, instability due to disturbances in steam supply and water temperature variations. Keeping in view the above criticalities, the selection of an effective control system becomes inevitable. This paper aims at identifying various types of control loop available in an MSF plant, selection of control elements, type of control strategy needed for it and integrating the whole system for supervisory control.
机译：过程控制是海水淡化行业的重要组成部分，要求在最佳条件下运行以延长设备的使用寿命并降低单位产品的成本。改进的过程控制是节约能源和提高过程获利能力的一种经济有效的方法。多级闪蒸（MSF）工厂涉及许多与蒸汽，化学药品和海水有关的复杂操作。其中包括可变容量，慢速动力学，由于某些负载变化而引起的停滞时间特性，对设计条件的微小偏差对电厂运行的重大影响，电厂输出条件对海水淡化厂的影响，由于蒸汽供应和水温变化的干扰而导致的不稳定。考虑到上述关键，选择有效的控制系统成为必然。本文旨在确定无国界医生工厂中可用的各种类型的控制回路，控制元件的选择，所需的控制策略类型以及将整个系统进行监督控制的集成。

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