The Analysis Of Multi Heat Source Network Operation In The Eastern Part Of Jinan City

Acompanied by the continuous progress of the technology of variable frequency pumps,and automatic control system of continuous improvement,technology of multi-source network in centralized heating is applied more and more.Due to the rapid growth of domestic heat load,heating energy consumption in all buildings energy consumption in the proportion gradually increased,caused by the central heating seasonal environment pollution is becoming more and more serious.In order to alleviate the air pollution,in the country improve energy structure at the same time,network with multi heat source heating system gradually get more extensive application.This paper respectively from the aspects such as heat source,heat load,heat supply network in detail research analysis of the current situation of Ji-Nan city in the east of heating.Then from energy consumption,operation cost and system safety and reliability of several main aspects to analyze the advantages of heat source connected to the Internet.With heat source scheduling principles of multiple heat source system,water temperature regulation,so the hydraulic conditions and the corresponding control system of heat produced by a realize networking operation technical conditions.And put forward the system connected to the network reconstruction scheme,analysis the feasibility of the heat source connected to the Internet.Follow the principle of coordinate heat source more running and heat balance of the networked system were analyzed,and identified east of Ji-Nan city more heat source heat source connected to the system in operation scheme.Combined with the outdoor temperature changes,the end of the whole heating period can be divided into early stage,both temperature and cold three periods,has carried on the hydraulic calculation,respectively,and the cold period of independent heating system and networking system of the hydraulic calculation results were compared.Determine the networking system of network and heating system of heating regulation mode and network system of constant pressure filling water constant pressure and constant pressure point.Respectively to a heat source and a section of pipeline failure accidents under the hydraulic calculation of heat supply system in detail,more heat source was verified the reliability of the network system.Because the system is not fully automated control,the cold period of the column operation mode for hydraulic calculation,the results show that reasonable region division of column operation.