Abstract: The urgent demand of water conservation in our country is introduced. The recent progresses in water conservation and waste water reduction of chemical and refinery industries are retrofitted and summarized as 7 aspects. They are：“Three steps methodology for water conservation” popularized；applications of water network integration method；water saving in cooling water systems；high temperature recovery technologies of condensing water；zero liquid discharge；online real time monitory management of water network. The common problems in this area are listed and studied and thus directions of future development are pointed out.

Key words: water conservation, water consumption per unit product, water network integration, circulation water, condensing water, reuse of waste water

摘要： 介绍了我国当前节水减排的形势和紧迫性，对最近炼油化工行业节水减排技术所取得的进展从以下7个方面做了简要的总结回顾：节水减排的“三步法”策略已得到逐步推广；水网络集成技术已逐步推广应用，并从工艺水夹点应用推向循环水夹点、循环水系统的节水减排深入发展、冷凝水高温回收技术应用、外排污水回用技术应用、“零排放”技术、水网络系统的在线实时监控管理等。对于当前节水减排工作中常见的存在问题，进行了梳理，从而给今后的节水减排工作指出方向。

关键词: 节水减排, 吨产品耗水, 水网络系统集成, 循环水, 冷凝水, 外排污水回用