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工业的发展使得水资源的需求量越来越大,节水已经成为人们普遍关心的问题之一。在工业生产中节水具有很强的针对性,只有针对系统的关键因素、即瓶颈进行节水才能真正提高整个系统的节水性能。水网络的瓶颈受到很多因素的影响,而灰色关联分析法是一种研究贫信息、少数据的方法,可以综合考虑多个影响因素对目标的影响。本文将灰色关联分析法应用于单杂质用水网络中,根据灰色关联度值给出了瓶颈单元的定义。并对用水单元中影响新鲜水用量的浓度、杂质负荷等多个因素进行了综合分析,通过计算扰动工况与正常工况下各因素差值的灰色关联度值,来确定用水网络中的瓶颈单元,提供了确定瓶颈的详细步骤和方法。本文将提出的瓶颈辨识方法应用于一个含有10个用水单元的单杂质用水网络,对其进行了分析研究,确定了该网络的瓶颈单元。并通过比较当瓶颈单元和非瓶颈单元的杂质负荷分别增加时,新鲜水量的改变值,验证了所确定瓶颈单元的准确性。分析结果表明,改变非瓶颈单元的扰动因素对网络新鲜水用量无影响,改变瓶颈单元的扰动因素网络新鲜水用量则会由166.2 t/h增至167.1 t/h。灰色关联分析法综合考虑多种影响因素,可以合理有效的确定用水系统的瓶颈单元。
Industrial development makes the demand for water resources more and more large, water-saving has become one of the issues of general concern. Water-saving in industrial production has a strong focus, only for the key factor in the system, that is, water-saving bottlenecks in order to truly improve the water-saving performance of the entire system. The bottleneck of water network is affected by many factors, and gray relational analysis is a method of researching poor information and few data. It can comprehensively consider the impact of multiple influencing factors on the target. In this paper, the gray relational analysis method is applied to single impurity water network, and the definition of bottleneck unit is given according to the gray relational value. In addition, a series of factors such as the concentration of fresh water, the load of impurities and so on were analyzed synthetically. The bottleneck in water network was determined by calculating the gray relational value between the disturbance condition and the normal working condition. Unit, provides detailed steps and methods to identify bottlenecks. In this paper, the bottleneck identification method proposed is applied to a single impurity water network containing 10 water units, which is analyzed and studied to determine the bottleneck unit of the network. The accuracy of the identified bottleneck unit was verified by comparing the change of fresh water when the impurity load of bottleneck unit and non-bottleneck unit were increased respectively. The analysis results show that changing the non-bottleneck elements has no effect on the amount of fresh water in the network, and the amount of fresh water in the network that changes the bottleneck elements will increase from 166.2 t / h to 167.1 t / h. Gray relational analysis method considers a variety of influencing factors synthetically and can determine the bottleneck unit of water system reasonably and effectively.