Research And Realization Of Integrated Management And Control Platform For Heat And Heat-supply Network

With the rapid economic development in China,energy consumption is also continuously increasing.With the aim to protect the living environment,the concept of energy conservation and emission reduction has gained popularity.Currently,central heating has become the main form of winter heating in northern cities.Meanwhile,owing to the rapid advancement and popularization of computer technology,many heating boiler control and heat exchange station management systems in the domestic heating industry have achieved centralized management.But,due to various reasons,quantitative evaluations of boiler heating quality are not enough,and managers not only lack sufficient management decision-making basis,but the theoretical basis for setting the operation parameters of boilers and heat exchange stations.Therefore,the heating system can not run in the best state for a long time.Compared with some developed countries,domestic central heating management belongs to extensive management,and the design of heating load by Design Institute is generally much higher than that in practical application,thus the operation of heating system features high consumption,high cost and low efficiency,etc.This topic mainly focuses on the following two aspects: First,the establishment of digital platform and various control schemes for thermal power network.The digitalization of thermal network is the premise of the integrated platform of management and control of thermal network.It can collect real-time and accurate heat exchange field data,and can plan and store the data reasonably.Especially for the secondary network temperature control,circulating pump control and water supply pump control design of a variety of control schemes,users can choose a more appropriate control scheme according to the characteristics of thermal users.Secondly,energy consumption analysis and prediction system is established.By introducing outdoor temperature as a reference variable to predict,the users will be guided to formulate the best adjustment plan and production plan to achieve the purpose of energy saving and efficiency enhancement.This paper describes the integration of heat reservoirs and heat exchange stations and the unified formation of heat-supply network management and control platform.Through the platform,the real-time monitoring of field operation data of heat exchange stations can be realized;via historical data and curves,the overall control of the previous operation conditions of heat exchange stations can be fulfilled;by virtue of the alarm monitoring interface,the safe and stable operation of heat exchange stations can be ensured.The platform also introduces the outdoor temperature as a control parameter and utilizes the control algorithm to enable the operation of heat reservoirs and heat exchange stations to reach the hydraulic equilibrium of the whole network.After the implementation of the platform,time-sharing district heating can be carried out for some special heat consumers,such as schools,offices,factories,etc.It greatly reduces the running time of circulating pumps and energy consumption.Heat suppliers can also make overall adjustments according to relevant data,so as to maximize the use of energy,thus creating more profits for enterprises and facilitating the environmental protection.The platform also provides functions such as energy consumption prediction and energy consumption analysis,which offers reliable management basis for managers.The widespread promotion and utilization of the platform integrating heat and heat-supply network will surely create more economic and social benefits for the heat industry.