不同位置阀门对热网水力工况影响的初步研究

热水网路的水力工况分析是一项系统工程。因为整个热网是一个有机整体,任何局部运行状况的变化、个别用户用热量的变化、管网结构的变化都可能影响到其他用户,甚至整个网路。热水网路水力工况计算是在管网结构已定,运行条件变化时计算热用户的流量分配和热用户的水力失调度。研究偏离设计工况时管网失调的程度以及在采用各种措施后调整热用户失调度的能力：本文给出了研究热水网路水力工况计算的数学模型并应用基本回路法编制程序计算和研究了在热水网路中不同位置阀门开启度增大或减小对整个热水网路的影响和各热用户的流量变化规律,计算其水力失调度并显示相应的水压图：上述所计算与分析的工况已超出《供热工程》教材中阐述的几种工况,可以为实际热水网路水力工况计算及分析提供参考。

Study on Hydraulic Regime Calculation & Relevant Regime Pressure Diagram Demonstration of Different Position Valves in Hot-water Network

Hydraulic regime analysis of hot-water regime is a system engineering. Because it is an 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. Hot-water network hydraulic regime calculation studies flux distribution and hydraulic maladjustment of consumer heating system, and the degree of pipe network maladjustment on offsetting design condition and the abilities of regulating maladjustment of consumer heating system after using several measures under the given pipe network structure and variant operation condition. Mathematical model of heat-supply by applying graph theory & mathematical knowledge, and applies basic loop analytic method to program the procedure about hot-water network hydraulic regime calculation & relevant regime pressure diagram demonstration and calculation of the hydraulic maladjustment were given in this paper.It was shown that in hot-water network have an effect on whole hot water network and flux movement laws of consumer heating system by studying and calculating that the decrease and increase of different position valves. The above-mentioned calculation and analysis has exceeded the regimes in the book of "Heat-supply Engineering". So it can offer reference for the calculation and analyses of hot-water network hydraulic regime.