随着国家大力发展石化化工及煤化工产业，相关的三废污染问题也日渐突出。特别是炼油焦化和煤制焦过程中产生的冷焦溢流水的处理成为当前降低生产成本及环境治理中一个关键问题。由于早先的粗放式生产对此问题并未引起足够的重视，随着当前各方面管控力度的加大，及生产成本的急剧增加对某些大型生产环节进行子系统改造迫在眉睫。冷焦溢流水的收集处理仅停留在理论研究阶段，具体的工程项目建设在国内尚属空白。2009年中石化总公司及安徽省地方政府积极鼓励安庆石化进行技改试点，并投资3200万元进行工程设计和建设施工，着力建造国内第一套完整的冷焦水回收处理系统。 本文依托中石化安庆分公司炼油厂1.5Mt/a延迟焦化装置增设冷焦溢流水密闭设施及脱硫除臭改造工程，进行过程控制系统进行设计和实施。项目运用PID控制、DCS系统、传感器及化工仪器仪表在线检测等技术。并针对某一温度控制点进行了控制方法的改进和仿真，解决了石油化工生产中的一个常见且又容易被忽视的问题。最后配以电气系统设计，并构建了一整套装置的工艺及电控系统。 论文主要从三个方面展开研究：一是确定总体的工艺过程设计方案，并对自控系统进行设计；二是根据其它石油化工生产过程中温度控制遇到的问题展开分析，针对该装置中一个温度控制点进行控制方案改进，将原有的PID控制改造为前馈—反馈控制系统，并通过仿真模拟得出控制品质的提高；三是进行配电系统设计和监控系统设计。本项目工程在设计完成后，经过近十个月的施工建设，安装调试，系统运行稳定，各项参数指标均达到设计的要求，工程已投入运行，并取得了经济效益和环保效益的双丰收。

With the country to develop coal chemical industry, chemical and petrochemical, waste-related pollution problems have become increasingly prominent. Especially cold coke and coking coal refining process produces coke overflow water treatment become lower production costs and environmental governance a key issue. Due to the extensive production earlier this problem is not taken seriously enough, with the increasing control of all aspects of current efforts, and a sharp increase in production costs for some large production processes subsystem imminent transformation. Cold coke overflow water collection and treatment only remain in the theoretical stage, the specific construction projects in the country is still blank. 2009 China Petrochemical Corporation and the local government in Anhui Anqing Petrochemical pilot actively encouraged and invested 32 million yuan construction engineering design and construction, efforts to complete the construction of the first set of coke cooling water recycling system. This article relies Sinopec Anqing Branch refinery 1.5Mt / a delayed coking unit airtight additional overflow water cold coke desulfurization facilities and deodorant renovation project, the basis for the design and implementation of process control systems. Project using the PID control, DCS systems, sensors and chemical instrumentation line detection technology. And a temperature control point for improved control and simulation methods to solve petrochemical production and not a common problem in theory. Finally, together with the electrical system design, and ultimately build a set of process and electrical control system devices. Thesis expanded from three aspects: First, the scheme of the overall process design is determined, and automatic control system is designed; Second, Second, based on issues that petrochemical production process temperature control encountered, a control scheme is given，it improves the transformation of the original PID control to feedforward - feedback control systems, the simulation results shows that control quality gets improvement; third, the distribution system and control system are designed. The project design is complete, nearly ten months after construction of the building, installation and commissioning, the system is stable, the parameters of the indicators have reached the design requirements, the project has been run successfully, and achieved economic and environmental benefits double harvest.