Analysis And Study On Indicator Of Influence Factor In The Heating Network Reliability

With the continuous improvement of people’s quality of life, thescale of central heating system is getting larger and larger, so the faulthappen more easier. Lead to the shortage of the heat supplied to user, oreven stop to provide heat, so that people’s daily life is inconvenient. Apressing matter of the moment is to consider how to improve thereliability of the heating system to provide comfortable life and workingenvironment for people.This paper analyzes the influence factors of heat-supply networkreliability to give the qualitative or quantitative index of the influencefactors. It is not only beneficial to improve the reliability of heat-supplynetwork, but also to establishes the base of the central heating systemreliability evaluation system creation. Specific contents in the thesis areas follows:Calculate the maximum permissible diameter of branched networkand maximum allowed length’s quantitative index of no spare network.Analyse the impact of heat source position on the reliability of branchnetwork and loop network and give heat source arrangement qualitativeindicators. Analyse influence of the number of the branch network andlocation of heat-supply network reliability according to calculattion ofexample, and give the qualitative index set of connected pipe. Give theindex of choosing the annular pipe network according to analysing theinfluence of annular pipe network’s reliability to heat-supply network.Analyse influence of shut-off valve and open valve setting toheat-supply network reliability, and give the setting of qualitativeindicators of shut-off valve and quantitative indicators of open valve.Calculate diameter of simple hot water pipe drain valve and vent valvecombined with the setting distance of piece-wise valve. Put forwardstatistical content of determining fault pipe repair time for, so laid thefoundation for the subsequent statistical work. Give quota heating coefficient through quantitative index calculation. Put forward statisticaldata that this factor needs based on the definition and calculation formulaof coefficient, and laid the foundation for the follow-up work.