基于多参量监测的直接空冷机组冷端优化控制系统研究与应用  

Research and Application of Cold End Optimal Control System of Direct Air Cooling Unit based on Multi Parameter Monitoring

作　　者：魏静[1] 张力[1] 陈志强[1] WEI Jing;ZHANG Li;CHEN Zhi-qiang(Shandong Electric Power Engineering Consulting Co.,Ltd.)

机构地区：[1]山东电力工程咨询院有限公司

出　　处：《电站系统工程》2023年第3期15-18,共4页Power System Engineering

摘　　要：针对直接空冷系统热工监测手段单一、机组运行背压偏高,冬季散热管束防冻保护动作不及时等问题,通过直接空冷系统冷端多参量在线监测、基于过冷度判断凝结水防冻保护以及机组负荷分段最优背压控制的设计,构建基于多参量监测的直接空冷机组冷端优化控制系统。兼顾实现空冷系统自动防冻保护和最优背压控制,提高空冷系统冬季运行安全性的同时提高空冷机组运行经济性。Aiming at the problems such as single thermal monitoring means of direct air cooling system,high back pressure of unit operation and untimely antifreeze protection action of cooling tube bundle in winter,through the design of multi parameter online monitoring of cold end of direct air cooling system,antifreeze protection of condensed water based on super-cooling degree judgment and optimal back pressure control of unit load section,an optimal control system of cold end of direct air cooling unit based on multi parameter monitoring is constructed.The automatic anti freezing protection and optimal back pressure control of the air cooling system shall be realized to improve the operation safety of the air cooling system in winter and the operation economy of the air cooling unit.

关 键 词：直接空冷 防冻保护 背压 优化控制 

分 类 号：TK39[动力工程及工程热物理—热能工程]