Study On Modeling And Simulation Of District Heating Network

The central heating system is a complicated large variable control system. With the improvement of people's demand of material life, this system will become more and more complicated. So it seems particularly important to regulate and control the hot network on the basis of accurate model building.On the basis of Laboratory-scale heating network, this paper aims at the study of hydraulic regime analysis of hot-water network. Heat-supply network is an important part of city basic establishment, and hydraulic regime analysis of hot-water network is the basis of improving hot-water network optimization adjustment and management.So analyzing hydraulic regime of Laboratory-scale heating network takes an important role in understanding of pressure distribution and distribution of hydraulic regime of outdoor hot-water network , ensuring heat-supply quality, economizing on energy, improving economy.Hydraulic regime analysis of hot-water network is system engineering. Because it is a organic integer. The change of any part operation, several consumers using quantity of heat and network structure can influence other consumers, even the whole network.The article summarizes the running management, adjusting and control technology at home and abroad, and gives mathematical model of heat-supply by applying graph theory & mathematical knowledge, and applies basic loop analytic method to solve the model, and programs the hydraulic regime of Laboratory-scale heating network simulation procedure, and gives relevant regime pressure diagram.Studying the topic mainly lies in: The procedure calculates various familiar hot water network hydraulic regimes, and analyzes the size and influence factors of several common hydraulic maladjustments. So it can offer reference for the calculation and analyses of hot-water network hydraulic regime.