热网优化监测系统的研究和应用  

Study and application of heat network optimum and monitor systems

作　　者：张志军[1] 徐向东[1] 

机构地区：[1]清华大学热能工程系

出　　处：《清华大学学报（自然科学版）》1999年第3期53-55,共3页Journal of Tsinghua University(Science and Technology)

基　　金：国家攀登计划

摘　　要：针对热网系统的热力输送和分配过程进行准确测量与控制，采用热力传输、控制理论、通信技术等对热网优化监测系统进行了研究，以实现热力的优化合理分配和传送。研制了一套分布式上下位机热网优化监测系统，上位机采用Ｉｎｔｅｌ工控机，研华７４７智能多串口通信控制器，下位机采用以Ｉｎｔｅｌ８０９８为核心的智能流量计，实现了热网参数的实时远距离监测。建立了热网参数的实时数据库，根据热网系统用户对蒸汽参数的要求和热网参数数据，采用系统辨识方法建立局部热网的系统模型和用优化估计的方法建立热网子网的系统模型，根据热网的预估模型，为锅炉和汽机的运行提供正确的设定参数。第一套热网优化监测系统成功地应用在北京清河热电厂。对节约能源和进行有效的技术经济管理起了重要作用，得到了用户的好评。Aiming at the measure and control of the heat network's heat transmission and distribution, this paper studied heat network optimum and monitor systems by control and communication theory etc. to realize optimal heat supply network. A set of distributive upper and lower heat network optimum and monitor systems has been developed. The upper host is INTEL industry computer with ADVANTECH 747 intelligent multiplex serial communication controller. The lower machine is intelligent flow meter with INTEL 8098 as its core. This system realized the remote real time monitor of heat network characteristics, set up a database of real time heat network characteristics. A predict model of heat network has been established by system identification according to the demands of users and the real time data. With the help of this predict model, the operating characteristics of boiler and steam turbine can be properly supplied. A successful heat network optimum and monitor system has been used in Beijing Qinghe Thermal Power Plant. This system showed great value in energy saving and economic management and has won the user's appreciation.

关 键 词：监测系统 流量测量 热电厂 热力网 优化监测系统 

分 类 号：TM621.4[电气工程—电力系统及自动化]