宝钢长江水源优化取水的规律及应用(上)

THE VARIATION LAW OF YANGSTE RIVER WATER SOURCE AND OPTIMIZATION INTAKE FOR BAOSHAN STEEL WORKS

上海宝钢水源,东临长江入海口,受潮汛、汐影响,咸、淡交替。为优化取水,研究探索了上游最小枯水流量与下游相应出现连续不可取水最长天数的关系、氯离子浓度月内随潮汛变化、日内随潮汐变化、纵向沿程变化和同断面上横向竖向变化等五条规律。并介绍了宝钢长江水源根据这些规律建设的取水工程特征和运行实践要点。使宝钢获得了合格的工业水源,而且让出了淀山湖优质水源供上海市民作饮用水源。

The water source of Bao shan Steel Works(BSW),being close to Yangste River mouth to the sea in the east,is alternatively salty and fresh as affected by the tide.In order to optimize the intake,the variation laws of the water source were investigated concerning the relation between the minimum dry weather flow of the upstream and the corresponding longest continuous period during which no water can be intaken from the downstream,and the variation of el concentration daily and monthly due to tide,longitudinal along the river as well as transversal and vertical in the same section of the river.The operation results of the intake work built upon the investigation introduced in this paper shows that the project not only makes the qualified industrial water source available for BSW but also Dianshan Lake conserved as a drinking water source for Shanghai citizens.