供暖系统管段阻力和流量关系的研究及编程计算

摘要

分析了供暖管路阻力和流量的关系式△P=SQ2的适用范围,提出这一关系式不适用于室内供暖管路系统.通过与电路的类比,分别提出适于计算大型室外供暖管路和室内供暖管路的有效算法.将编程计算的方法应用于室内同程式供暖管路,得到各管段阻力的变化对管段流量和系统总流量的影响规律.%Through analysing the application scope of the formula △p = SQ2, indicates that the formula is not suitable for the indoor heating pipeline. By analogy with the electric circuit, provides the effective algorithm for calculating the outdoor or indoor heating pipeline respectively. Applies the programming calculation to the indoor reversed heating pipeline and obtains the influence patterns of variation of pressure loss in each section of pipeline on both the flow rate in the section and the total flow rate of the system.