摘要
危及生产安全的锅炉爆管主要是由于局部过热引起的。在借鉴过程仿真和热力系统分析方法的基础上,针对现有监测方法中存在测点布置困难、所得结果缺乏科学依据等问题展开研究,开发了一套具有较高可行性和可靠性的锅炉金属壁温在线监测系统。系统由网络通讯、数据库、一体化过程模型开发平台IMMS(integratedmodularmodelingsystem)、网页显示软件等4部分构成。以IMMS及其算法库为基础,并充分考虑设备的固有特性和结构参数进行模型开发,提高了系统的准确性和通用性;同时利用电厂MIS采集的机组运行数据,通过模型在线计算来确定受热面壁温,并采用B/S模式显示实时监测信息。此系统模型对象划分合理、功能完善、描述精度高,能够满足现场实际监测要求,已成功应用于某电厂200MW机组。
Overheating is the main cause of boiler tubes explosion, which greatly affects the safe operation of power plants. Based on the process simulation and the analysis method of thermal power system, the tube wall temperature online monitoring system of high temperature heating surface was successfully developed with high feasibility and reliability to provide a possible solution for the present problems such as hard to locate the measuring position and short of theoretical support. The system is composed of net communication software, database, integrated modular modeling system and web page display software. Models are designed in the support of IMMS and the algorithm database which take fully consideration of inherent properties and structure parameters of the equipment, meanwhile, the operating data could be gained by taking advantage of MIS in power plant; as a result, the tube wall temperature is calculated online and monitoring information is showed in the browser/server architecture. The system model division is reasonable and the description of model precision can meet the requirement of monitoring, and had been put into practical use successfully in a 200MW unit.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2006年第21期125-129,共5页
Proceedings of the CSEE
关键词
热能动力工程
锅炉
金属壁温
在线监测
模型开发
B/S模式
thermal power engineering
boiler
tube wall temperature
online monitoring
modular modeling
browser/ server mode
