Hydraulic Conditions' Experimental Study And Simulation Of Ring-shaped Heat-supply Network With Multi-heat Sources

The scale of central heat-supply system is always enlarging along with the increase of economy and heating technique. In many cities, one city has multi-heat-system, so much as multi-heat sources with thermoelectricity combine. But every source independently runs without mutual benefit. As a sort of network form, ring-shaped network with multi-heat sources isn't widely applied and recognized because its theory and technology doesn't mature and its reliability and economy isn't admitted. But ring-shaped network with multi-heat sources is developmental trend of heating.Based on engineering and practicality, presents design meansand principia of ring-shaped network with multi-heat sources.The thesis sets up experiment, studies hydraulic conditions of ring-shaped network with multi-heat sources, validates its feasibility, and sums up elementary regulation and operating regulation method by physical experiment. And the thesis points that elementary regulation has main function of hydraulic stability.MATLAB/SIMULINK is a software which can simply model, simulate and analyze. The thesis sets up simulate model of physical experiment, simulates its hydraulic conditions, and validates rationality of simulate model by comparing simulate data with experimental data. The rationality shows simulate technology can analyze hydraulic conditions of large-scale network.Taking example for ring-shaped network of LINFEN, the paper uses simulate technology to expound the design process, validates its feasibility.Reliability and economy are the important standard of heating system. Compared with tree-shaped network, ring-shaped network with multi-heat sources has strong reliability and saving investment. It shows that ring-shaped network has reliability, economy andrationality.