Based Graphical Heating Pipe Network Hydraulic Calculation Method Discussed

It has been accepted by more and more people, that district heating has advantage in energy saving, environment quality improving, heating quality advancing. Consequently, district heating gets rapid development in our country. Being short of correlative technique of management and adjustment, Therefore serious hydraulic maladjusted phenomenon exists generally. This demerit can increase the cost of heating. So, it is necessary to study the district heating hydraulic power work condition.In this paper, according to the analysis of District Heating System network hydraulic power work condition, using the graph theory basic loop, KCL and KVL and Bernoulli equation established hydraulic power work condition mathematic model, settled the derivation of the mathematic model.Using the C# language, Visual Studio development flatform, developed a graphic heat supply network hydraulic power emulation calculation software for both branch network and loop network. For the implementation of graphic, this software provides various unit for drawing practice in the interface, and puts the partial component equivalentlength in theComputer procedure , it made the computer can self-action recognize the network's spanning tree, associated matrix, loop matrix, drag coefficient vector ,and flux vector and so on, then solute the problem according to flow calculation simulation model that has been established. This software can according to the different network calculate the network's hydraulic power work condition.We calculate the flux and pressure loss of branch network and loop network according to two examples, and compared the result to the reality, The error is in a proper sphere, therefore, This model is proved to be correct, this paper has a definitive instruct significance to the analysis of district heating hydraulic power work condition.