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引言天津石化100万吨/年乙烯及配套项目是国家重点项目,投资250余亿元,其配套的公用工程部分化学水装置承担着整个项目的脱盐水供给任务,项目在投产时遇到一些设计不当及运行不合理的问题,影响生产。本文在分析存在问题的基础上,采取一些改造措施,从而保证了脱盐水装置的正常及低耗运行。工艺流程化学水装置主要包括原水超滤装置8套,每套净出力254m3/h;原水反渗透装置8套,每套出力258m3/h,回收率≥85%,脱盐
Introduction Tianjin Petrochemical 1000000 tons / year of ethylene and related projects is a national key project, an investment of more than 250 billion yuan, the supporting part of the public utilities chemical water plant to undertake the entire project desalination water supply tasks, the project met some design put into operation Improper and unreasonable problems, affecting production. Based on the analysis of the existing problems, this paper adopts some modification measures to ensure the normal and low-cost operation of the desalinated water plant. Process The chemical water plant mainly includes 8 sets of raw water ultrafiltration units, each with a net output of 254m3 / h; 8 sets of raw water reverse osmosis units, each with an output of 258m3 / h, a recovery rate of over 85%, desalination