Research On Operation Regulation And Control Model Of Central Heating System

With the rapid growth of China’s heating area,heating energy consumption has also increased.How to improve the quality of heating,reduce energy consumption,and protect the resources and environment has attracted more and more attention.Strengthening research on heating technology and operation management methods to obtain greater economic and social benefits with less energy consumption has important strategic and practical significance for ensuring sustainable economic and social development.Heating regulation is an important means to ensure heating quality and energy saving.This paper focuses on the optimization of central heating system operation management.According to the research on the development of central heating systems at home and abroad and the basic status quo of building heating energy consumption,by comparing the current status of relevant research at home and abroad,the content and significance of this study are expounded;the operational adjustment characteristics of central heating systems are analyzed,and the system operation is discussed The relevant parameters of the adjustment process and their calculation methods are calculated;with the goal of the lowest energy consumption of the circulating water pump during the heating period of the heating system,the circulation flow ratio of the central heating system operation and the power consumption of the circulating water pump during the operation are comprehensively Through theoretical analysis,the theoretical calculation formula of the power consumption of the circulating water pump of the heating system under the quality adjustment method of changing the flow in stages is obtained,and the power consumption of the circulating water pump of the heating system using different operating modes is compared and analyzed.According to the characteristics of the central heating in the universities under investigation in winter,a time-division-division-division temperature-adjusting control scheme was proposed.According to the indoor temperature requirements of the buildings served by the central heating system in different time periods,the heating stage is divided into three heating modes:normal heating period,short-term low-temperature heating,and long-term low-temperature heating.The heat supply can be reduced by 24.38%,and the corresponding heating energy-saving scheme is proposed;the climate compensation technology is used to optimize the frequency conversion energy-saving control system of the heating circulation pump,and the control principle and control process of the control system are given.The return water temperature difference control mode realizes the control of the secondary water supply temperature and circulation flow of the heat exchange station.Taking the central heating system of a university in Qingdao as an example,the operation of the heating system in the heating season of 2018-2019 is analyzed.According to the operation adjustment method adopted by a heat exchange station in the campus at the current stage,combined with the load changes at different outdoor temperatures,the heat consumption and power consumption are obtained.The comparative analysis shows that the energy consumption of the heating system is relatively large,and the energy-saving effect still needs to be improved.The intelligent heat exchange station and the monitoring platform can be used to reasonably adjust and control the heating system,which can optimize the operation mode and reduce the operation cost.Based on the proposed energy-saving operation control mode,the energy-saving transformation scheme of the heating system of the No.1 heat exchange station in this campus is proposed,and the operation effect is predicted.It is predicted that the heat utilization rate of the entire heating season will increase by 4%,and electric energy will be saved by 38.7%.